Geographical Area Networks (GANs) are computer networks that span a sizable geographic region, like a city, state, or even a whole country. They are made to link several local area networks (LANs).
What three categories do personal area networks fall under?According to IEEE, there are three categories under which wireless personal area networks can fall. High-rate WPAN: The data transmission rate exceeds 20 Mbps. 1 Mbps is the data speed for medium-rate WPAN. Less than 0.25 Mbps of data throughput is possible with low-rate WPAN.
What is a network and how is it classified?Two or more computers connected together to share resources (such printers and Discs), exchange files, or enable electronic communications make up a network. Computers on a network may be linked by cables.
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Describe the use of Machine Learning, if any, in the following scenarios, clearly identifying whether it is supervised, unsupervised, or reinforcement learning etc: a. A coin classification system is created for a vending machine. The developers obtain exact coin specifications from the U.S. Mint and derive a statistical model of the size, weight, and denomination, which the vending machine then uses to classify coins. b. A system that takes MRI images as input and identifies whether the patient has a tumor or not. A database of a large set of MRI images that have been labelled by doctors is available. An algorithm uses this data to infer decision boundaries and uses it to classify the tumor. c. A system that mimics the sorting hat from the Harry Potter series needs to be designed. Students are sorted into houses based on their scores on various aptitude tests such as sports, language, chemistry, etc.A database of past students that includes their scores on different tests along with the houses they were sorted into is provided to you. You use this information and build an algorithm that can sort a new student based on their test scores. d. A system that takes PET scans as input and identifies the different types of tissues in a 3-D image. e. A computer develops a strategy for playing Tic-Tac-Toe by playing repeatedly and adjusting its strategy by penalizing moves that eventually lead to losing.
Machine learning is the process of training a computer system to recognize patterns in data and make decisions based on those patterns. There are three main types of machine learning: supervised learning, unsupervised learning, and reinforcement learning. Each of these types is used in different scenarios and for different purposes.
a. The coin classification system for a vending machine is an example of supervised learning. This is because the developers are using a labeled dataset (the exact coin specifications from the U.S. Mint) to train the model. The model then uses this information to classify coins based on their size, weight, and denomination.
b. The system that takes MRI images and identifies whether the patient has a tumor or not is also an example of supervised learning. This is because the system is using a labeled dataset (the database of MRI images that have been labeled by doctors) to train the model. The model then uses this information to classify the tumor.
c. The system that mimics the sorting hat from the Harry Potter series is also an example of supervised learning. This is because the system is using a labeled dataset (the database of past students and their test scores) to train the model. The model then uses this information to sort a new student based on their test scores.
d. The system that takes PET scans and identifies the different types of tissues in a 3-D image is an example of unsupervised learning. This is because the system is not using a labeled dataset to train the model. Instead, the model is trained to recognize patterns in the data and classify the tissues based on those patterns.
e. The computer that develops a strategy for playing Tic-Tac-Toe is an example of reinforcement learning. This is because the computer is not using a labeled dataset to train the model. Instead, the computer is playing the game repeatedly and adjusting its strategy based on the outcome of each game. The computer learns to make better decisions by penalizing moves that lead to losing.
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In this question, we will investigate shallow search, also known as depth-limited search. Depth-limited search is not guaranteed to find the optimal solution to the original problem. The point of this question is to explore some of the (potentially undesirable) behavior of depth-limited search, and to illustrate that the quality of the evaluation function can play a big role in how well depth-limited search performs. Consider the following Pacman configuration, in the board below. At each time step, Pacman can move either West (left) or East (right) and is using limited-depth minimax search (where the minimizing agent does not really do anything) to choose his next move. Pacman is 3 East moves away from the food. We will consider the following state evaluation functions: • F1(state) = – (Number of food pellets left) • F2(state) = – (Number of food pellets left) + 0.5/(distance to closest food pellet + 1); distance to closest food pellet is taken as O when no food remains. The search depth referred to in this question corresponds to the depth in a search tree that only considers the maximizer's actions. For example, if the search considers sequences of up to 2 actions by the maximizer, it'd have a search depth of 2. Note that there can be ties (in which case both East or West could be returned by the search). Also, note that a search does not finish when the dots are eaten. Using F1 as the state evaluation function, for what search depths could East be returned by the search? 1 2 3 4 None of the above. Using F1 as the state evaluation function, for what search depths could West be returned by the search? 1 2 3 4 None of the above. Using F2 as the state evaluation function, for what search depths could East be returned by the search? 1 2 3 4 None of the above. Using F2 as the state evaluation function, for what search depths could West be returned by the search? 1 2 3 4 None of the above.
Using F1 as the state evaluation function, East could be returned by the search for search depths of 3 and 4. This is because at search depths of 3 and 4, Pacman would be able to reach the food pellet and the state evaluation function would return a value of 0 (no food pellets left). At search depths of 1 and 2, Pacman would not be able to reach the food pellet and the state evaluation function would return a value of -1 (one food pellet left).
Using F1 as the state evaluation function, West could be returned by the search for search depths of 1 and 2. This is because at search depths of 1 and 2, Pacman would not be able to reach the food pellet and the state evaluation function would return a value of -1 (one food pellet left). At search depths of 3 and 4, Pacman would be able to reach the food pellet and the state evaluation function would return a value of 0 (no food pellets left).
Using F2 as the state evaluation function, East could be returned by the search for search depths of 2, 3, and 4. This is because at search depths of 2, 3, and 4, Pacman would be able to get closer to the food pellet and the state evaluation function would return a higher value. At search depth of 1, Pacman would not be able to get closer to the food pellet and the state evaluation function would return a lower value.
Using F2 as the state evaluation function, West could be returned by the search for search depth of 1. This is because at search depth of 1, Pacman would not be able to get closer to the food pellet and the state evaluation function would return a lower value. At search depths of 2, 3, and 4, Pacman would be able to get closer to the food pellet and the state evaluation function would return a higher value.
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Do you think copper tape switches are considered analog or digital devices? How do you know? ens
Copper tape switches can be considered as digital devices. A digital device typically uses binary signals to represent information, where each signal can be either a "0" or "1."
Copper tape switches operate by completing a circuit when pressed, allowing electricity to flow, and breaking the circuit when released, stopping the flow of electricity. This "on/off" behavior is analogous to digital signals, where "0" represents off and "1" represents on. Therefore, copper tape switches are a type of digital switch, which can be used in digital circuits to control the flow of electricity. However, it is worth noting that analog circuits can also use switches to control voltage or current, but the behavior of the switch is continuous and can take any value between the extremes.
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write a function named abs sum that takes a list of integers as a parameter and returns the sum of the absolute values of each element in the list. for example, the absolute sum of [-1, 2, -4, 6, -9] is 22. if the list is empty, return 0. use python's functional programming constructs, such as list comprehensions, map, filter, reduce, to implement your function. do not use any loops or recursion in your solution.
To write a function named abs_sum that takes a list of integers as a parameter and returns the sum of the absolute values of each element in the list, we can use Python's functional programming constructs, such as map and reduce. Here is the solution:
```python
from functools import reduce
def abs_sum(lst):
# Use map to apply the absolute value function to each element in the list
abs_lst = map(abs, lst)
# Use reduce to sum the absolute values in the list
result = reduce(lambda x, y: x + y, abs_lst, 0)
return result
```
For example, the absolute sum of [-1, 2, -4, 6, -9] is 22:
```python
print(abs_sum([-1, 2, -4, 6, -9])) # 22
```
If the list is empty, the function will return 0:
```python
print(abs_sum([])) # 0
```
This solution does not use any loops or recursion, as required in the question.
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4.2 Code Practice: Question 2
Instructions
Write a loop that continually asks the user what pets the user has until the user enters rock, in which case the loop ends. It should acknowledge the user in the following format. For the first pet, it should say You have a dog with a total of 1 pet(s) if they enter dog, and so on.
Sample Run
What pet do you have? lemur
What pet do you have? parrot
What pet do you have? cat
What pet do you have? rock
------------
Sample Output
You have a lemur with a total of 1 pet(s)
You have a parrot with a total of 2 pet(s)
You have a cat with a total of 3 pet(s)
Answer:
total = 0
while True:
pet = input("What pet do you have? ")
if pet == "rock":
break
total += 1
print("You have a {} with a total of {} pet(s)".format(pet, total))
Hope this helps!
Brainliest and a like is much appreciated!
Select the correct answer from each drop-down menu A manipulator and the end effector work together to execute a robot's tasks A manipulator is a series of joined segments, whose function is to capable of The manipulator is thus
The end effector and the manipulator collaborate to carry out a robot's operations. A manipulator is made up of a number of connected segments that are used to position and direct the end effector.
Which area of the robotic manipulator is utilized for object positioning within the robot work volume?The robot manipulator is divided into two parts: Body-and-arm - for positioning things within the work volume of the robot. Wrist assembly for object orientation.
Where is the manipulator's end effector connected?An end effector is an accessory that fastens to a robot's wrist and enables it to interact with the task at hand.
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A __________ variable is used to keep track of the number of loops that have been executed.
its not sum or counter I have tried it.
pls help.
Answer:
consistent
Explanation:
definition a web crawler, an indexer, a database, and a query processor are all components of this. a web site like www. that is designed specifically to help you find information on the web a search engine returns a list of these, which are links to web pages that match your search criteria. these are descriptive data and words entered into the header section of a web page when it's created. this person can manually submit a url to a search engine. term hits search engine search site web master meta keywords
A web crawler, indexer, database, and query processor are all components of a search engine. A search engine is a web site like goo-gle that is designed specifically to help you find information on the web.
When you enter a query, the search engine returns a list of "hits", which are links to web pages that match your search criteria. Meta keywords are descriptive data and words entered into the header section of a web page when it's created. The webmaster can manually submit a URL to a search engine.
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Compute the effective CPI for an implementation of a RISC-V CPU using Figure A. 29 (Page A-42). Assume we have made the following measurements of average CPI for instruction types: Instruction Clock cycles All ALU operations 1. 2 Loads 9. 5 Stores 3. 2 Branches Taken 4. 5 Not taken 2. 0 Jumps 3. 0 Assume that 75% of the conditional branches are taken. Average the instruction frequencies of astar and libquantum to obtain the instruction mix. Assume that all other instructions require 4. 5 clock cycles each
The effective CPI for this RISC-V CPU implementation is 2.655 cycles per instruction.To compute the effective CPI (cycles per instruction), we need to calculate the weighted average of CPI for each instruction type based on their frequencies of occurrence in the instruction mix.
The instruction mix for this RISC-V CPU implementation is assumed to be the average of astar and libquantum, so we need to determine the frequencies of occurrence for each instruction type in both programs and take their average. Since the problem statement doesn't provide the specific instruction mix, we will assume the following frequencies based on common RISC-V benchmarks:
All ALU operations: 40%
Loads: 25%
Stores: 10%
Branches Taken: 6%
Branches Not Taken: 19%
Jumps: 0.5%
Using these frequencies and the CPI values provided in Figure A.29, we can calculate the effective CPI as follows:
Effective CPI = (0.4 x 1) + (0.25 x 9) + (0.1 x 3) + (0.06 x 4.5) + (0.19 x 2) + (0.005 x 3) = 2.655
Therefore, the effective CPI for this RISC-V CPU implementation is 2.655 cycles per instruction.
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as a network administrator, you have had several employees ask for a way in which they could connect their phones to their linux computers without the use of wires. which of the following device types would best meet these employees' needs?
As a network administrator, the best device type that would meet the employees' needs of connecting their phones to their Linux computers without the use of wires is a Bluetooth adapter.
A Bluetooth adapter is a device that plugs into a computer's USB port and enables the computer to communicate with Bluetooth-enabled devices, such as smartphones, without the use of wires. This allows for easy transfer of data between the phone and computer, as well as the ability to use the phone as a remote control for the computer.
Additionally, Bluetooth adapters are relatively inexpensive and easy to set up, making them a convenient solution for the employees' needs.
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What are the uses of Vb.net programs?
Visual Basic .NET is an object oriented programming language designed by Microsoft. With the word “Basic” being in the name of the language, you can already see that this is a language for beginners.
People who criticize vb.net because of the simplicity of the syntax, but vb.net has the ability to create very powerful and sophisticated applications. vb.net is a great place to start because of how easy and straight forward it is.
In this challenge lab, you explore the Windows Disk Management tool. You may have to research how to do some of the tasks. Once you are finished, you will answer some questions. You will need a second disk of at least 20 GB installed on your Windows computer.
Install a second disk on your Windows computer of at least 20 GB, if necessary.
Delete any existing partitions from the new disk.
1. Discussion Question
a. What type of disk is it: basic or dynamic?
Create a new 3 GB volume named Vol1 and format it using a file system that supports file and folder permissions. Use the default drive letter.
2. Discussion Questions
a. What format did you choose?
b. What type of partition was created (primary, extended, logical drive)?
Create three additional volumes of 3 GB each named Vol2, Vol3, and Vol4. Accept the default options each time.
3. Discussion Questions
a. For each partition, what was the partition type you created?
b. Explain what happened when you created the fourth volume.
Convert the disk to a dynamic disk. (Convert only the new disk you installed; do not convert Disk 0, which is the Windows boot disk.)
4. Discussion Question
a. How did this change the way the volumes and partitions are labeled?
Close Disk Management
1. The type of disk that was installed is a basic disk.
2. a. The format that was chosen for the new 3 GB volume named Vol1 is NTFS, as it supports file and folder permissions.
b. The type of partition that was created is a primary partition.
3. a. The partition type that was created for each of the three additional volumes (Vol2, Vol3, and Vol4) is a primary partition.
b. When the fourth volume was created, an extended partition was automatically created to accommodate the additional volume.
4. a. After converting the disk to a dynamic disk, the volumes and partitions are labeled differently. The primary partitions are now labeled as "simple volumes" and the extended partition is labeled as "spanned volume."
After converting the disk to a dynamic disk, the simple volumes can be combined into a single spanned volume, which allows the disk space to be used as a single logical volume. This spanned volume can be used to create multiple partitions of different sizes, and these partitions can be used to store data.
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to ensure that text is easily read on low resolution devices, we should use a higher x-height. true or false?
To ensure that text is easily read on low resolution devices, we should use a higher x-height. This statement is true.
What is an x-height?
The distance between the baseline of a line of type and the top of the main body of lower case letters is referred to as x-height. The x-height is a critical aspect of text readability, particularly in body copy. It determines the visual impact of a typeface and its legibility in smaller sizes.
Resolution and higher x-heightResolution has an impact on the visual quality of typefaces. As the resolution gets lower, typefaces become more difficult to read. The x-height is increased to make text more readable on low-resolution devices. When we use a typeface with a higher x-height, the size of lowercase letters is increased. This implies that the height of lowercase letters is closer to the height of uppercase letters.
As a result, lower-case letters appear larger, and the words appear to have more space between them. In conclusion, to ensure that text is easily read on low-resolution devices, we should use a higher x-height.
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which of the following metrics do we have for finding dissimilarity between two clusters in hierarchical clustering? 1. single linkage, 2. complete linkage, 3. average linkage
The metrics for finding dissimilarity between two clusters in hierarchical clustering are single linkage, complete linkage, and average linkage.
What is hierarchical clustering?Hierarchical clustering is a type of data clustering method that builds a hierarchy of clusters that resemble a tree-like structure or a dendrogram. The methods for building this hierarchy are divided into two types: agglomerative and divisive. In hierarchical clustering, we have several metrics for determining dissimilarity between two clusters. The most commonly used ones are:
Single linkage, also known as the nearest neighbor method, compares the closest points between two clusters. It connects the two closest points from each cluster and forms a new cluster. This approach is a faster method, but it is sensitive to noise and tends to create long chains.
Complete linkage, also known as the farthest neighbor method, compares the farthest points between two clusters. It connects the two farthest points from each cluster and forms a new cluster. This method is less sensitive to noise and tends to produce compact clusters, but it is slower than the single linkage method.
Average linkage calculates the average distance between all pairs of data points in two different clusters. It then connects the two clusters that have the smallest average distance. This method is slower than single linkage but is more robust to noise and outliers.
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which option is a logical container that holds all the resources that an operating system requires for normal operation, such as a graphics adapter, memory, processor, networking, and so on?
The option that is a logical container that holds all the resources that an operating system requires for normal operation is "Kernel.
An operating system is a system software that allows a computer's hardware and software to communicate with one another. It is the most important type of software since it manages computer hardware and software resources. Users of the computer are reliant on the operating system to provide a user interface (UI) and to handle computer programs' execution. An operating system makes it easier for users to communicate with the computer's hardware and software resources. Examples of operating systems are Microsoft Windows, Apple macOS, and Linux.The kernel is the heart of the operating system. It is the lowest level of an operating system that interacts with the computer hardware. It is a logical container that holds all the resources that an operating system requires for normal operation, such as a graphics adapter, memory, processor, networking, and so on. The kernel controls access to computer hardware for all other components of the operating system. It is a central component of the operating system that interfaces with computer hardware and software resources. The kernel also allows the operating system to run multiple processes simultaneously without causing system instability. Therefore, the kernel is a logical container that holds all the resources that an operating system requires for normal operation.Learn more about operating system here: https://brainly.com/question/1033563
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What is the most likely reason a company would use enterprise software?
OA. To draft personal documents
OB. To track social media
OC. To conduct operations more easily
OD. To watch movies at home
Which technology helps to share computing and storage resources over a network to end users?
A.
augmented reality
B.
cloud service
C.
personal information management
D.
virtualization
Answer:
B. cloud service
Explanation:
Cloud services are infrastructure, platforms, or software that are hosted by third-party providers and made available to users through the internet.
during tcp/ip communications between two network hosts, information is encapsulated on the sending host and de-encapsulated on the receiving host using the osi model. which information type format occurs at the data link layer of the osi model?
During TCP/IP communications between two network hosts, the format of the information type that occurs at the data link layer of the OSI model is known as the frame format.
TCP/IP refers to a set of protocols that support network communications. The protocols of the Internet protocol suite are commonly referred to as TCP/IP. It is the standard protocol for communication on the Internet. The OSI model is a reference model that provides an architectural framework for the implementation of network protocols. The OSI model has seven layers. Each layer of the OSI model defines a specific function of the communication process. Each layer of the OSI model encapsulates the data, adds a header, and sends it to the next layer.The format of the information type that occurs at the data link layer of the OSI model is known as the frame format. It consists of a header and a trailer. The header includes the source and destination MAC addresses, protocol type, and optional fields such as VLAN tags. The trailer contains the cyclic redundancy check (CRC) value. The CRC value is used to detect errors in the frame. The data link layer is responsible for providing reliable data transfer over a physical link. It is the second layer of the OSI model. The data link layer is responsible for encapsulating the data received from the network layer into frames, adding a header and a trailer to the frame and transmitting the frame to the physical layer.Learn more about TCP here: https://brainly.com/question/30921756
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Write a code that randomly quizzes the user by naming a state then asking for the capital. It should keep track of the number of correct and incorrect answers. Write in python and use the dictionary below.
capitals = {'Alabama':'Montgomery', 'Alaska':'Juneau', 'Arizona':'Phoenix', 'Arkansas':'Little Rock', 'California':'Sacramento', 'Colorado':'Denver', 'Connecticut':'Hartford', 'Delaware':'Dover', 'Florida':'Tallahassee', 'Georgia':'Atlanta', 'Hawaii':'Honolulu', 'Idaho':'Boise', 'Illinois':'Springfield', 'Indiana':'Indianapolis', 'Iowa':'Des Moines', 'Kansas':'Topeka', 'Kentucky':'Frankfort', 'Louisiana':'Baton Rouge', 'Maine':'Augusta', 'Maryland':'Annapolis', 'Massachusetts':'Boston', 'Michigan':'Lansing', 'Minnesota':'Saint Paul', 'Mississippi':'Jackson', 'Missouri':'Jefferson City', 'Montana':'Helena', 'Nebraska':'Lincoln', 'Nevada':'Carson City', 'New Hampshire':'Concord', 'New Jersey':'Trenton', 'New Mexico':'Santa Fe', 'New York':'Albany', 'North Carolina':'Raleigh', 'North Dakota':'Bismarck', 'Ohio':'Columbus', 'Oklahoma':'Oklahoma City', 'Oregon':'Salem', 'Pennsylvania':'Harrisburg', 'Rhode Island':'Providence', 'South Carolina':'Columbia', 'South Dakota':'Pierre', 'Tennessee':'Nashville', 'Texas':'Austin', 'Utah':'Salt Lake City', 'Vermont':'Montpelier', 'Virginia':'Richmond', 'Washington':'Olympia', 'West Virginia':'Charleston', 'Wisconsin':'Madison', 'Wyoming':'Cheyenne'}
Here's the Phyton code to randomly quiz the user on US states and their capitals:
import random
# Define the dictionary of state capitals
capitals = {'Alabama':'Montgomery', 'Alaska':'Juneau', 'Arizona':'Phoenix', 'Arkansas':'Little Rock', 'California':'Sacramento', 'Colorado':'Denver', 'Connecticut':'Hartford', 'Delaware':'Dover', 'Florida':'Tallahassee', 'Georgia':'Atlanta', 'Hawaii':'Honolulu', 'Idaho':'Boise', 'Illinois':'Springfield', 'Indiana':'Indianapolis', 'Iowa':'Des Moines', 'Kansas':'Topeka', 'Kentucky':'Frankfort', 'Louisiana':'Baton Rouge', 'Maine':'Augusta', 'Maryland':'Annapolis', 'Massachusetts':'Boston', 'Michigan':'Lansing', 'Minnesota':'Saint Paul', 'Mississippi':'Jackson', 'Missouri':'Jefferson City', 'Montana':'Helena', 'Nebraska':'Lincoln', 'Nevada':'Carson City', 'New Hampshire':'Concord', 'New Jersey':'Trenton', 'New Mexico':'Santa Fe', 'New York':'Albany', 'North Carolina':'Raleigh', 'North Dakota':'Bismarck', 'Ohio':'Columbus', 'Oklahoma':'Oklahoma City', 'Oregon':'Salem', 'Pennsylvania':'Harrisburg', 'Rhode Island':'Providence', 'South Carolina':'Columbia', 'South Dakota':'Pierre', 'Tennessee':'Nashville', 'Texas':'Austin', 'Utah':'Salt Lake City', 'Vermont':'Montpelier', 'Virginia':'Richmond', 'Washington':'Olympia', 'West Virginia':'Charleston', 'Wisconsin':'Madison', 'Wyoming':'Cheyenne'}
# Initialize variables to keep track of correct and incorrect answers
num_correct = 0
num_incorrect = 0
# Loop through a random selection of 10 states
for state in random.sample(capitals.keys(), 10):
# Ask the user to input the capital of the state
capital_guess = input(f"What is the capital of {state}? ")
# Check if the user's guess is correct
if capital_guess == capitals[state]:
print("Correct!")
num_correct += 1
else:
print(f"Incorrect. The capital of {state} is {capitals[state]}.")
num_incorrect += 1
# Print the final score
print(f"Final score: {num_correct} correct answers and {num_incorrect} incorrect answers.")
How does the Phyton code above work?The code uses the random.sample() method to select 10 random states from the dictionary of state capitals. It then loops through each of these states and asks the user to input the capital.
If the user's guess is correct, the code adds 1 to the num_correct variable. If the guess is incorrect, the code adds 1 to the num_incorrect variable and prints the correct answer. Finally, the code prints the final score.
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Match the CIA triad to the methods and techniques used to ensure them: preparing for fast disaster recovery with backups and business continuity plans Biometric Verification 1. Confidentiality promptly applying system upgrades and patches 2. Integrity Two-Factor Identification 3. Availability One way encryption checksums (hashes) File permissions Match the terms with associated concepts. used to determine identities and permissions 1. Authentication and Authorization detection of intruders by monitoring network traffic/intruders 2. Prevention and Resistance 3. Detection and Response stop intruders from accessing and reading data Match the terms with associated concepts. Encryption that uses a pair of keys, one called a public key and the other a private key. Using the same key to encrypt and decrypt a message. 1. Asymetric key encrption 2. Symetric key encryption Allows people to exchange secret messages without ever having met to exchange a key 3. One-way encryption < A hash function that generates a digital fingerprint of a message is an example of this
The CIA triad, which stands for Confidentiality, Integrity, and Availability, is a framework for ensuring information security. Each aspect of the triad is associated with different methods and techniques to ensure its protection.
The correct matching for the first part of the question is:
1. Confidentiality - Biometric Verification, Two-Factor Identification, File permissions
2. Integrity - One way encryption checksums (hashes), promptly applying system upgrades and patches
3. Availability - preparing for fast disaster recovery with backups and business continuity plans
The correct matching for the second part of the question is:
1. Authentication and Authorization - used to determine identities and permissions
2. Prevention and Resistance - stop intruders from accessing and reading data
3. Detection and Response - detection of intruders by monitoring network traffic/intruders
The correct matching for the third part of the question is:
1. Asymetric key encryption - Encryption that uses a pair of keys, one called a public key and the other a private key.
2. Symetric key encryption - Using the same key to encrypt and decrypt a message.
3. One-way encryption - A hash function that generates a digital fingerprint of a message is an example of this; Allows people to exchange secret messages without ever having met to exchange a key
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The purpose of this project is to make sure that you understand and are familiar with the concepts covered in the lectures, including distributed computing, multithreading, thread definition, creation, management, synchronization, cooperation, event-driven programming, client and server architecture, service execution model of creating a new thread for each request, the performance of parallel computing, and the impact of multi-core processors to multithreading programs with complex coordination and cooperation. Furthermore, you are able to apply these concepts in a programming project
The aim of this project is to ensure that you have a comprehensive understanding of various key concepts covered in lectures related to distributed computing, multithreading, and event-driven programming.
This includes concepts such as thread definition, creation, management, synchronization, cooperation, and client-server architecture. Additionally, the project aims to develop your skills in service execution model, parallel computing, and the impact of multi-core processors on complex coordination and cooperation in multithreading programs. Through this project, you will also be able to apply these concepts in practical programming situations, which will enable you to develop a strong foundation in the subject and improve your problem-solving skills.
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a function is entered into an excel worksheet to evaluate the values in cells c4 and d4. if the value in c4 is greater than 10 the output of the function should be the word ok. if the output in cell d4 is greater than or equal to 2, the output should also be the word ok. otherwise the output should read low. which of the following if functions will provide an accurate output given the requirements provided?
The correct answer is: =IF(OR(C4>10, D4>=2), "ok", "low")This function will first evaluate the values in cells C4 and D4 using the OR function. If either of the values are true (C4>10 or D4>=2), the output will be "ok".
If neither of the values are true, the output will be "low".The IF function is used to evaluate a logical statement and return one value if the statement is true and another value if the statement is false. The OR function is used to evaluate multiple logical statements and return true if any of the statements are true and false if all of the statements are false.
By combining these two functions, we can accurately evaluate the values in cells C4 and D4 and return the correct output based on the requirements provided.
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Suppose the two syringes and the tube is filled with water. If the plunger on the left is pushed in 1cm will the object on the right move out by 1cm or not ? Explain your answer
Whether the object on the right will move out by 1cm when the plunger on the left is pushed in depends on several factors, including the size of the syringes and the tube, the volume of water in each syringe, and the properties of the object on the right.
Assuming that the syringes and the tube are of equal size and are connected by a watertight seal, and that the object on the right is not affected by the pressure changes caused by pushing in the plunger on the left, then the answer is yes - the object on the right should move out by 1cm.When the plunger on the left is pushed in, the volume of water in that syringe decreases, causing a corresponding decrease in the volume of water in the tube. This decrease in volume creates a decrease in pressure, which should cause the object on the right to move out by a distance equal to the decrease in volume.However, it's worth noting that in practice, there may be other factors that affect the movement of the object, such as friction in the syringes and the tube, or the compressibility of the water.
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Say true or false. A)ICT in education is used as teaching learning aid
b) The frequent changing technology is negative impact of ICT.
c) Cracking is the process of breaking into copyrighted software.
a) True - ICT (Information and Communication Technology) has become an integral part of education in the modern era. Teachers and students use various ICT tools such as computers, smartphones, tablets, projectors, and software applications to enhance the learning experience.
These tools allow students to access vast amounts of information, interact with educational content, collaborate with peers, and receive immediate feedback.
b) False - The frequent changing technology is not necessarily a negative impact of ICT. While it is true that technology is constantly evolving, this also means that new and improved tools and resources are being developed that can enhance education and make it more efficient. Teachers and students can adapt to new technology and integrate it into their teaching and learning processes, thus improving the quality of education.
c) True - Cracking is a process where a person attempts to gain unauthorized access to copyrighted software or digital media. This process often involves breaking security measures that have been put in place to prevent unauthorized access. This is considered illegal and can result in legal consequences for the person who attempts it. It is important for individuals to respect the intellectual property rights of software developers and other creators of digital content.
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Drag each tile to the correct box.
Classify the benefits and drawbacks of doing business on the internet.
cheaper to set up and run a business
access to a large amount of customer
information
difficult to verify the quality of products
BENEFITS
risk of cyberattacks
attracts investments from a larger number of
sources
can drive small enterprises out of business
DRAWBACK
Answer:
Explanation:
Benefits
Cheaper to set up and run a business.
Access to a large amount of customer information
Attracts investments from a larger number of sources.
Drawbacks
Can drive small enterprises out of business.
Risk of Cyberattacks
difficult to verify the quality of products
you are the network administrator for a consulting firm. your network consists of: 40 desktop computers two servers three network switches two network printers you've been alerted to an issue with two desktop computers that are having problems communicating with the network. when only one computer is on, everything is fine. but when both computers are connected, the network connection is randomly dropped or interrupted. which of the following would be the most likely cause for this?
The most likely cause of the issue with the two desktop computers having problems communicating with the network when both are connected is an IP address conflict.
An IP address conflict occurs when two devices on the same network are assigned the same IP address. This can result in one or both of the devices losing their network connection or experiencing intermittent connectivity issues.
As the network administrator, you should check the IP address settings on both computers to ensure that they are not manually assigned the same address. If they are, you should change one of the IP addresses to a different, unused address within the network's range. Alternatively, you can set the IP address settings to automatically obtain an IP address from the network's DHCP server, which will automatically assign unique IP addresses to each device.
Once the IP address conflict is resolved, both computers should be able to communicate with the network without any issues.
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Allan contacts the ISP complaining of issues connecting to the internet. He is unsure of the problem. The ISP sends a new preconfigured modem to Allan in hopes that it solves the situation. Which structured troubleshooting method is the ISP using
Answer:
substitution
Explanation:
sarah was browsing an online shopping site when a program got downloaded onto her system without her knowledge. the next day she found that her search engine had been changed, and she received pop-up advertisements of the shopping site she had visited the previous day. the program on sarah's system is . group of answer choices a cookie a stack smasher adware a payload a trojan horse
The program on Sarah's system is adware. Adware is a type of malware that can automatically display pop-up ads on a user's device after being downloaded without the user's knowledge.
Adware is a type of malware that can automatically display pop-up advertisements on a user's device after being downloaded without the user's knowledge. Adware is frequently bundled with software downloads, and it is a type of spyware that can monitor your browsing habits, collect your personal information, and send it back to advertisers.
There are two types of adware: intrusive and non-intrusive. Intrusive adware displays pop-up ads on your computer screen that are unrelated to what you're doing, such as playing a game, browsing the web, or writing an email. Non-intrusive adware displays ads in other places, such as the search results page of a search engine, that are relevant to what you're looking for.
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Define what is a Malware
Answer: Malware (a portmanteau for malicious software). is any software intentionally designed to cause disruption to a computer, server, client, or computer network, leak private information, gain unauthorized access to information or systems, deprive access to information, or which unknowingly interferes with the user's computer security and privacy. Researchers tend to classify malware into one or more sub-types (i.e. computer viruses, worms, Trojan horses, ransomware, spyware, adware, rogue software, wiper and keyloggers). Malware poses serious problems to individuals and businesses on the Internet. According to Symantec's 2018 Internet Security Threat Report (ISTR), malware variants number has increased to 669,947,865 in 2017, which is twice as many malware variants as in 2016. Cybercrime, which includes malware attacks as well as other crimes committed by computer, was predicted to cost the world economy $6 trillion USD in 2021, and is increasing at a rate of 15% per year. Since 2021, malware has been designed to target computer systems that run critical infrastructure such as the electricity distribution network.
Answer: Malware describes malicious applications or code that damage or disrupt the normal use of devices. When a device becomes infected with malware, you may experience unauthorized access, compromised data, or being locked out of the device.
A cell tower in a city with a growing population is getting overcrowded with mobile signals. This is causing many calls to be dropped or not to go through at all. Which of the following would be the best way to fix this issue?
a: ensure all devices have bluetooth
b: add more wifi routers
c: change the type of waves used to transmit signals
d: add more cell towers
The best way to fix the issue of dropped calls and failed connections due to overcrowding of mobile signals in a city with a growing population would be to d: add more cell towers.
What is cell towers?
A cell tower, also known as a cell site or cell phone tower, is a large tower structure that is used to facilitate communication between mobile devices, such as cell phones, tablets, and other wireless devices.
This would increase the coverage area and distribution of signals, reducing the overcrowding at the existing tower and ensuring that signals are transmitted and received effectively. Adding more wifi routers (b) or ensuring all devices have Bluetooth (a) would not address the issue of overcrowding on the cell tower, as they are not designed to handle mobile signals. Changing the type of waves used to transmit signals (c) may not be practical, as it would require a complete overhaul of the existing network infrastructure and may not necessarily address the issue of overcrowding on the tower.
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