the data link layer accepts messages from the network layer and controls the hardware that transmits them (T/F)

Answers

Answer 1

The data link layer accepts messages from the network layer and controls the hardware that transmits them is True.

What is OSI Model?Providing a "shared basis for the coordination of [ISO] standards development for the purpose of systems interconnection," the Open Systems Interconnection model (OSI model) is a conceptual framework. Physical, Data Link, Network, Transport, Session, Presentation, and Application are the seven separate abstraction layers into which the communications between computing systems are divided in the OSI reference model.In order to describe networked communication, the model divides the flow of data in a communication system into seven abstraction layers, starting with the physical implementation of transmitting bits across a communications medium and ending with the highest-level representation of data in a distributed application. Each intermediate layer assists the layer above it and is assisted by the layer below it in providing a class of functionality. In all programme, classes of functionality are realised.

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Related Questions

Sasha is viewing a primary component of her Inbox in Outlook. She sees that the subject is “Meeting Time,” the message is from her co-worker Trevon, and the message was received on Monday, January 10th. Sasha can also see the contents of the message. Which part of the Inbox is Sasha viewing?

the status bar
the Reading Pane
the message header
the Task List

Answers

sasha is viewing the status bar

Answer: Its B, The reading pane

What are the core steps to add revisions or features to a project?(1 point)
Responses

Evaluate feasibility of the goals, create a list of functionality requirements, and develop the requirements of the feature.

Evaluate feasibility of the goals, develop programming solutions, and evaluate how well the solutions address the goals.

understand the goals, evaluate the impact on the project, create a list of functionality requirements, and develop the requirements of the feature.

Communicate with the client, create a sprint backlog, develop the project, and evaluate how well the solution fits the requirements.

Answers

The core steps to add revisions or features to a project are ""Understand the goals, evaluate the impact on the project, create a list of functionality requirements, and develop the requirements of the feature." (Option C)

How is this so?

The core steps to add revisions or features to a project include understanding the goals,evaluating the impact on the project, creating a list of functionality requirements,and developing the requirements of the feature.

These steps ensure that the goals are clear, the impact is assessed, and the necessary functionality is identified and implemented effectively.

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Write a 2 page paper explaining why a compiler needs to know about both the target architecture as well as the target OS.

Answers

The target architecture and the operating system are important to the compiler to perform high level executions which are made in programming language.

What is a compiler?

A compiler simply means a computer program that is important in the translation of codes that are written in a particular language to another programming language.

In this case, they're vital to perform high level executions which are made in programming language.

The target architecture also sets the framework for the planning and assigning of resources to reach a desired state.

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Write a program using for loop (use days of the week as a sequence) to ask the user to enter the number of miles ran for each day of the week.

How many miles for Mon?

How many miles for Tues?

.................................

Count and display the number of days the user

1) ran less than 5 miles.

2) Ran between 5 and 10 miles ==> inclusive

3) Ran over 10 miles

Answers

Answer:

Explanation: ll[

1. What power does creating your own variables give you that you wouldn't otherwise have?

Answers

Answer:

It gives the power of setting values and using them anywhere within the coding project without declaring them again.

Explanation:

What is a variable?

A variable is a name that a programmer gives to locations in a computer memory where values are stored and they need to be declared before usage.

Declaring a variable means that its data type must be defined and initial value set and creating your own variables gives the power of being able to set the variable once and use anywhere in the coding project without declaring it again.

Choose the type of error that matches the described situation.

(blank) : Results of program are returned but they are not correct because the computation was designed incorrectly.

(blank) : Error caused by incorrect indentation of a line.

(blank) : Error caused by trying to open a file that cannot be found.

Answers

The type of error that matches the described situations are;

1) Logic Error

2) Syntax Error

3) Exceptions

1) Results of program are returned but they are not correct because the computation was designed incorrectly; This will be classified as a logic error because a logic error in computer programming is one in which it occurs when there is a bug/mistake in computer program that makes it give incorrect results/behavior but it doesn't make it to crash or terminate abruptly.

2) Error caused by incorrect indentation of a line; This type of error is called a syntax error because it involves mistake in the use of language. In this case, there is a wrong language in indentation of the line.

3) Error caused by trying to open a file that cannot be found; This type of error is an exception because it is an error that can be recovered even while running the program.

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The code below is repetitious. What is the output of this program?
num = 3
num = num + 1
num = num + 1
num = num + 1
print(num)
Output:

Answers

Answer:

It should be 6

The code below is repetitious. What is the output of this program?num = 3num = num + 1num = num + 1num

Answer:

Explanation:

Edge 2021

On what sort of screwdriver are you likely to see a square shaft? A.magnetized
B.Philips
C.flat tip
D.heavy duty

Answers

Answer:

Answer "C.flat tip"

Explanation:

I dont know why this is on here but here you go:

A square shaft is commonly found on flathead screwdrivers, also known as flatted screwdrivers or slotted screwdrivers.

Answer:

Explanation:

because flat tip have a square surface

The Local Government Authority of Ghana wishes to computerize their activities. The Authority desires departments and units to be able to share files whiles it reduces some unnecessary cost. As the Head of IT unit your Head of Department has tasked you to research what connection type would be appropriate for LGA and why? As a tough headed Boss he requires that you give Three (3) key points to support your choice for and against?

Answers

Answer:

wireless connection

Explanation:

key point worth noting : reduces some unnecessary cost

As the Head of IT unit your Head of Department, I will recommend that wireless connection should put in place. wireless connection will reduce cost of laying wires to different department of the Local Government Authority and also save record time that would have been used up during the installation.

Major benefits of wireless networking

1. Increased network coverage: wireless networks can be used to reach places in Local Government Authority office that are not accessible for wires and cables.

2. Improved Scalability: Wireless systems can be configured to meet the needs of specific departments of the Local Government Authority. These can be easily modified and scaled depending on each department’s needs.

3. Lower overall cost:Wireless Networking is relatively less costlier than wired Networks since no cables is required between the devices as well as lower long-term costs due to lesser maintenance fees since there is less equipment.

give 2 reasons why 3D printers are not commonly used in a home office other than the cost

Answers

Answer:

Skill/ Material

Explanation:

The skills needed to design a model for a 3D printer to print is rare, and takes alot of practice.

Filling is also needed for the printer, which is an additonal cost besides mantience, and the original fee.

Answer:

The use of 3D printers can be complex, with much prerequisite knowledge being required. They are time-consuming to maintain.

Explanation:

3D printers are a versatile technology with a multitude of use cases, from designing models and prototypes to creating components used in vehicles. This begs the question, why are they not common in home offices everywhere?

Firstly, while they are incredibly useful, they are pretty complex, with prior knowledge of CAD (computer-aided design) software often required. This complexity can make its use challenging for the average person.

Another reason they are uncommon in home offices is their need for maintenance. 3D printers, like all machinery, require regular maintenance to ensure smooth operation. However, maintenance of 3D printers can be time-consuming, coupled with an overall lack of need within a home office, making them off-putting to buyers.

Identify and describe the three basic operations used to extract useful sets of data from a relational database?

Answers

The select operation, The join operation, The project operation are the three basic operations used to extract useful sets of data from a relational database.

Describe the three basic operations used to extract useful sets of data from a relational database?

The select operation generates a subset from the table's records (rows) that satisfy the specified criteria. Relational tables are joined together to offer the user access to more data than is contained in each table alone. The project procedure generates a subset of the table's columns, enabling the user to construct new tables that only include the necessary data.

What actions are performed in a relational DBMS?

Relational algebra has five fundamental operations: Set Difference, Union, Cartesian Product, and Selection. Most required data retrieval activities are carried out by them.

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one or more clips have missing or offline source frames. if you continue these frames will be rendered with a media offline graphic.
a. true
b. false

Answers

A. True. If there are missing or offline source frames in a clip, continuing with the rendering process will result in those frames being rendered with a media offline graphic.

This is because the source frames are not available, so the media offline graphic is used as a placeholder. If you continue rendering despite having missing or offline source frames, the rendered output will contain a media offline graphic in place of the missing frames.

This is because the frames are missing or offline, and thus cannot be rendered. The media offline graphic is a placeholder that will be used in place of the missing frames.

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Which of the following is NOT a criticism of the SMCR model of communication?

A. Communication is not a one way process.

B. There is no room for noise.

C. It is a rather complex model.

D. It is a linear model of communication.

Subject- media and information literacy

Answers

The transactional model of communication differs from the linear model in such a way that the transactional model. Therefore, C is the correct option.

What is communication?

Communication has been the way of communicating and interacting with another person in order to convey one’s thoughts on some topic. Communication is one of the most important soft skills for people in order to become socially intelligent.

Build stronger and more reliable relationships. There are a few models of communication which define different types of communication. The linear model sees it as a one-way process from sender to receiver.

Therefore, C is the correct option.

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Two-factor authentication can best be breached by the adversary using:________. a. social engineering attack b. using sniffers like Wireshark and capturing packets c. using rootkits and privilege escalation to get to the kernel processes d. using a virus and destroying the computer that stores authentication information.

Answers

Answer:

a. social engineering attack

Explanation:

Two-factor authentication requires that the user/owner of the account enter a second verification code alongside their password in order to access the account. This code is usually sent to a personal phone number or email address. Therefore in order to breach such a security measure the best options is a social engineering attack. These are attacks that are accomplished through human interactions, using psychological manipulation in order to trick the victim into making a mistake or giving away that private information such as the verification code or access to the private email.

Does CLAIRE https://claire-ai.org/vision/ considered a representative of Roy Rotwell's Fifth Generation of innovation?

Answers

Answer:

I'm really confused background info please

Explanation:

Which statement is true about computer security?

1.Computer security is the job of specialized security engineers.

2. Computer security is only necessary for governments and big businesses.

3.Computer security is everyone's responsibility.

4.Computer security does not affect the gaming industry.

Answers

Answer:

Computer security is everyone's responsibility.

Hope this helps! ^-^

-Isa

A year in the modern Gregorian Calendar consists of 365 days. In reality, the earth takes longer to rotate around the sun. To account for the difference in time, every 4 years, a leap year takes place. A leap year is when a year has 366 days: An extra day, February 29th. The requirements for a given year to be a leap year are:
1) If the year is evenly divisible by 4, go to step 2. Otherwise, go to step 5.
2) If the year is evenly divisible by 100, go to step 3. Otherwise, go to step 4.
3) If the year is evenly divisible by 400, go to step 4. Otherwise, go to step 5.
4) The year is a leap year (it has 366 days).
5) The year is not a leap year (it has 365 days).
Some example leap years are 1600, 1712, and 2016.
Write a program that takes in a year and determines whether that year is a leap year.

Answers

Answer:

The program in Python is as follows:

year = int(input("Year: "))

print(year,end=" ")

if (year % 4) == 0:

if (year % 100) == 0:

if (year % 400) == 0:

print("is a leap year")

else:

print("is not a leap year")

else:

print("is a leap year")

else:

print("is not a leap year")

Explanation:

This gets input for year

year = int(input("Year: "))

This prints the year, input by the user

print(year,end=" ")

Check if year is divisible by 4 --- step 1

if (year % 4) == 0:

If step 1 is true, check if year is divisible by 100 -- step 2

if (year % 100) == 0:

If step 2 is true, check if year is divisible by 400 -- step 3

if (year % 400) == 0:

If yes, print leap year --- step 4

print("is a leap year")

else:

If otherwise, print not leap year --- step 5

print("is not a leap year")

If step 3 is not true, print leap year

else:

print("is a leap year")

If step 1 is not true, print not leap year

else:

print("is not a leap year")

A template is usually opened by
O clicking on a slide's thumbnail and choosing a template in the Design tab gallery.
O opening the Design tab and then right-clicking on a thumbnail in the gallery and selecting Apply to All Slides.
O clicking on New under the File tab and then selecting a thumbnail from the Templates gallery.
O opening the File tab and then right-clicking on Save As and selecting Apply to All Slides after picking a template.

Answers

The first answer choice

Answer:

Explanation:

What is the relationship model in this ER digram?

Answers

Answer:

ER (ENTITY RELATIONSHIP)

Explanation:

An ER diagram is the type of flowchart that illustrates how "entities" such a person, object or concepts relate to each other within a system

Hi!
i want to ask how to create this matrix A=[-4 2 1;2 -4 1;1 2 -4] using only eye ones and zeros .Thanks in advance!!

Answers

The matrix A=[-4 2 1;2 -4 1;1 2 -4] can be created by using the following code in Matlab/Octave:

A = -4*eye(3) + 2*(eye(3,3) - eye(3)) + (eye(3,3) - 2*eye(3))

Here, eye(3) creates an identity matrix of size 3x3 with ones on the diagonal and zeros elsewhere.

eye(3,3) - eye(3) creates a matrix of size 3x3 with ones on the off-diagonal and zeros on the diagonal.

eye(3,3) - 2*eye(3) creates a matrix of size 3x3 with -1 on the off-diagonal and zeros on the diagonal.

The code above uses the properties of the identity matrix and the properties of matrix addition and scalar multiplication to create the desired matrix A.

You can also create the matrix A by using following code:

A = [-4 2 1; 2 -4 1; 1 2 -4]

It is not necessary to create the matrix A using only ones and zeroes but this is one of the way to create this matrix.

With clear examples, describe how artificial intelligence is applied in fraud detection

Answers

Answer:

AI can be used to reject credit transactions or flag them for review. Like at Walmart

Explanation:

I work with AI, i know what i'm talking about.

what is the best way of farming exotics in destiny?

Answers

The best way to get exotics is to maximize doing activities which have a higher chance to drop them. Do these things for maximum chance:

- Do all Powerful Rewards on all characters. Every single Powerful reward has a chance to be an exotic instead of the normal reward. So do all your Crucible/Strikes/Gambit/Heroic Story/Heroic Adventure/Flashpoint/etc... - each day that one of these resets, do it again
- Do all Dreaming City activities every week (Ascendant Challenge, Blind Well/Offering to Queen bounties, featured story mission, bounty for 8 daily bounties).
- On Curse Week, do Shattered Throne on all characters
- If you Raid, do the Raid every week on all characters

Once you exhaust all your powerful rewards (I'm sure there are some I forgot to mention), then you are going to be limited to hoping one drops in the Wild as an engram. Focus on activities that have a lot of enemies - the more enemies you kill, the more chance you might see one drop.

Just doing all my powerful rewards this week, I got Trinity Ghoul, Ursa Furiosa, Shards of Galnor, Geomag Stabilizers and Queenbreaker (my luck this week is not typical but if I had not farmed all my powerful rewards, I would have never gotten them)

The easiest way (but probably the most time consuming) is to buy a bunch of vanguard boons from Zavala and use one at the beginning of a strike. Need 2 people in your fireteam. Quit out and repeat until you get your exotic reward pop up.

Answer:

the best way to farm exotics in destiny is talking to xur and playing nightfall all day but play at least on hero or legend difficulty to get exotics faster because it is very common to get them on those difficulties and more higher difficulties.

Explanation:

Joseph owns a candy company and wants to show the popularity of his products across the United States. Which feature would best illustrate this argument? a 3D map a sparkline a trendline a data map

A 3D MAP

Answers

A data map would best illustrate the popularity of Joseph's candy products across the United States.

What is a Data Map?

A data map is a visual representation of data that uses color coding or shading to show numerical values for specific regions or areas.

In this case, Joseph could use a data map to display sales data for each state, with darker colors representing higher sales figures. This would allow viewers to quickly and easily see which states have the highest and lowest sales of Joseph's candy products, and would provide a clear visual representation of the popularity of his products across the country.

Answers

Pseudocode for the new implementation of BFS using an adjacency matrix:

```

BFS(adjacency_matrix, start_node):

Create a queue and enqueue the start_node

Create a visited array and mark the start_node as visited

While the queue is not empty:

Dequeue a node from the queue

Process the node

For each adjacent node in the adjacency matrix:

If the adjacent node is not visited:

Mark the adjacent node as visited

Enqueue the adjacent node

```

The time complexity of this new version of BFS using an adjacency matrix is O(V^2), where V is the number of vertices. This is because we need to iterate over each element in the adjacency matrix to check the connections between nodes. In the worst case, we may need to visit every entry in the matrix, resulting in a quadratic time complexity.

In comparison, the version of BFS seen in class using an adjacency list has a time complexity of O(V + E), where V is the number of vertices and E is the number of edges. This version is more efficient because it only visits the nodes and edges that are present in the graph, rather than iterating over all possible connections as in the adjacency matrix implementation.

The two versions are equally efficient when the graph is dense and the number of edges approaches the maximum possible value of V^2. In this scenario, the time complexity of both implementations becomes similar, as the number of iterations required in the adjacency matrix version is comparable to the number of edges in the adjacency list version. However, in most practical cases, where the graph is sparse (fewer edges compared to the total possible connections), the adjacency list version is more efficient.

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Encryption relies on the use of _________to ensure that information is readable only by the intended recipient.

Answers

Answer:

Encryption Keys

Explanation:

In order to make sure only the intended recipient receives the information, encryption keys rely on a unique pattern, just like your house key, except instead of grooves and ridges encryption keys use numbers and letters.

Assume that "a" is an array of integers. What, if anything, is wrong with this Java statement:
a[a.length] = 10;

Answers

The problem with the given Java statement is that the index it wants to access is out of bounds which means that it is an index that is out of bounds

What is wrong with the code snippet?

The statement attempts to get an index that is greater than the array's length as Java arrays start at 0, which cause valid indices range from 0 to the length minus 1.

This makes the call of "a.length" causes an "ArrayIndexOutOfBoundsException".

Answers

Programming languages such as Prolog support the (1) declarative programming paradigm because they encourage programmers to describe a(n) (2) problem rather than its solution.

In declarative programming, the programmer specifies what the program should accomplish rather than how it should be done. Prolog is a logic programming language that is particularly well-suited for tasks such as natural language processing, expert systems, and rule-based systems. In Prolog, the programmer defines a set of rules and facts, and the system uses logic to infer conclusions based on those rules and facts. This approach allows for more flexible and scalable programming, as the system can adapt to new data and rules without requiring significant changes to the code.

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Which of the following statements are true about how technology has changed work? Select 3 options. Responses Businesses can be more profitable by using communication technology to reduce the costs of travel. Businesses can be more profitable by using communication technology to reduce the costs of travel. With the spread of technology and the Internet, smaller businesses are not able to compete as effectively as before. With the spread of technology and the Internet, smaller businesses are not able to compete as effectively as before. In a gig economy, workers are only hired when they are needed for as long as they are needed. In a gig economy, workers are only hired when they are needed for as long as they are needed. Through the use of the Internet and collaboration tools more workers are able to perform their jobs remotely. Through the use of the Internet and collaboration tools more workers are able to perform their jobs remotely. Technology has not really changed how businesses operate in the last fifty years. Technology has not really changed how businesses operate in the last fifty years.

Answers

The three genuine statements almost how technology has changed work are:

Businesses can be more productive by utilizing communication technology to decrease the costs of travel. This can be genuine since advances like video conferencing and virtual gatherings permit businesses to conduct gatherings, transactions, and collaborations remotely, lessening the require for costly travel courses of action.

With the spread of technology and the Web, littler businesses are not able to compete as successfully as some time recently. This explanation is genuine since innovation has empowered bigger companies to use their assets and reach a worldwide advertise more effortlessly, making it challenging for littler businesses to compete on the same scale.

Through the utilize of the Web and collaboration devices, more laborers are able to perform their occupations remotely. This explanation is genuine as innovation has encouraged farther work courses of action, allowing employees to work from anyplace with an online association. Collaboration instruments like extend administration computer program and communication stages have made inaccessible work more doable and effective.

Technology explained.

Technology alludes to the application of logical information, aptitudes, and devices to form innovations, fathom issues, and move forward proficiency in different spaces of human movement. It includes the improvement, usage, and utilize of gadgets, frameworks, and processes that are outlined to achieve particular assignments or fulfill specific needs.

Technology can be broadly categorized into distinctive sorts, such as data technology, communication technology, therapeutic innovation, mechanical technology, and transportation technology, among others. These categories include different areas, counting computer science, hardware, broadcast communications, building, and biotechnology.

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