This elementary problem begins to explore propagation delay and transmis- sion delay, two central concepts in data networking. Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, and suppose the propagation speed along the link is s meters/sec. Host A is to send a packet of size L bits to Host B
a. Express the propagation delay, dprops in terms of m and s
b. Determine the transmission time of the packet, drans, in terms of L and R.
c. Ignoring processing and queuing delays, obtain an expression for the end-
d. Suppose Host A begins to transmit the packet at time t = 0. At time t = dtrans'
e. Suppose drop is greater than dran . At time t = d, ans, where is the first bit of
f. Suppose dprop is less than dtrans. At time t = dtrans, where is the first bit of
g. Suppose s = 2.5-108, L = 120 bits, and R = 56 kbps. Find the distance m so that dprop equals drans
Answer:
A. dprops = m /s seconds.
B. drans = L / R seconds.
C. delay(end −to−end) = (m /s + L / R) seconds.
D. The bit has just been sent to Host B or just left Host A.
E. The first bit is in the link and has not reached Host B.
F. The first bit has reached Host B.
G. m = 535.714 km.
Explanation:
The transmission time or delay of packets in a network medium is the packet size L, divided by the bit rate R (in seconds). The propagation time or delay is the ratio of the distance or length of the transmission cable, m, and the propagation speed of the cable, S (in seconds).
The end-to-end delay or the Packet delivery time is the total delay in transmission, which is the sum of the propagation delay and the transmission delay.
To get the distance where the propagation delay is equal to the transmission delay;
distance (m) = L /R
= (120/56 ×10^3) 2.5 ×10^8 = 535.714 km
Any suggestions on how to write the following Python code?
1. Write a Python code to save the following list in a CSV file
ls = [“Hello”, “Hi”, “bye”]
2.Write a Python to read the CSV file generated in the previous step (1) to a Python list.
Help would be much appreciated.
Answer:
Hi
Explanation:
uestion
7. If you want to learn how to perform an action, which feature of the Excel window should you use?
A. Quick Access toolbar
B. Tell Me box
C. Status bar
D. File tab
Please help ASAP
Using Python Write an expression using Boolean operators that prints "Special number" if special_num is -99, 0, or 44.
Sample output with input: 17
Not special number
special_num = int(input())
if special_num == -99 or special_num == 0 or special_num == 44:
print("Special number")
else:
print("Not special number")
I wrote the code so that the user enters a number of their choice. Best of luck.
what are the principle elements of public key cryptosystem
Answer: Components of a Cryptosystem
- Plaintext. It is the data to be protected during transmission.
- Encryption Algorithm. ...
- Ciphertext. ...
- Decryption Algorithm, is a mathematical process, that produces a unique plaintext for any given ciphertext and decryption key. ...
- Encryption Key. ...
- Decryption Key.
Explanation:
In the Allow list box in the Data Validation dialog box,the _____ option means that the cell will accept only times.A) ChronologyB) ClockC) TimeD) Calendar
Answer:
C) Time
Explanation:
Given that Data validation is a feature in Microsoft Excel in which a user used to specify or determines the type of value or characters that can be typed or entered into a cell.
For example, using data validation to ensure a value of a number is whole numbers, or to ensure character entry is less than 25 characters.
Hence, in this case, the correct answer is the TIME option, will only result in cell accepting only times.
Which traits are common in all four career pathways of the Information Technology field? Check all that apply.
A)accuracy and attention to detail
B)problem-solving and critical-thinking skills
C)knowledge of programming language
D)ability to work independently
E)ability to protect confidential information
F)ability to learn quickly
Answer:
Abcd
Explanation:
Suppose that one of the following control signals in the single-cycle MIPS processor has a stuck-at-0 fault, meaning that the signal is always O, regardless of its intended value. What instructions would malfunction? Why? (a) RegWrite (b) ALUOp1 (c) MemWrite Repeat for all three signals (a) to (c) above, assuming that the signal has a stuck-at-1 fault.
Answer:
Explanation:
RegWrite:
• All R-type instructions, lw and addi:
• The result of the operation/load/addition would not be written back to the destination register
• ALUOP
• The following R-type instructions: add, sub, and, or, slt
• With ALUOp stuck at 0, the ALU decoder would interpret all those instructions as either add or subtract operations. The ALUOp gets decoded to add or subtract depending on ALUOp[0].
• MemWrite:
• Only sw is affected.
• The memory write won’t take place.
Which kind of storage has a spinning platter?
magnetic hard disk
O server
O solid state hard disk
O cloud
Answer:
Magnetic hard disk
Explanation:
The type of storage that has a spinning platter is called MAGNETIC HARD DISK reason been that MAGNETIC HARD DISK are made up of one or more disks that are been covered with a magnetic coasting or magnetic material to help store information or data permanently on a desktop or a computer and lastly this type of disks help to read data and as well write and rewrite data.
How goes design again ones attention?
Answer:
the only thing i could think of is creating a different way to get someone to pay attention to you like maybe instead of shouting or tapping on ones shoulder maybe try to ask the person closest to them to get their attention for you. or by doing something extremely impressive or distracting
Explanation:
Which of the following represent the use of formatting to create readable code?
Choose all that apply.
Line breaks are used to separate every ten lines of code.
Line breaks are used to separate segments of code.
Indentation is used to create a pattern that is easy to follow.
Indentation is used to make it easier to follow the flow of logic in the code.
Answer:
The true statements are:
Line breaks are used to separate segments of code.
Indentation is used to create a pattern that is easy to follow.
Indentation is used to make it easier to follow the flow of logic in the code.
Explanation:
Line breaks and indentation are used to increase the readability of a program. The coding formatting is done using the line breaks and indentation to separate segments of code so that the code is easier to read.
Hence,
The true statements are:
Line breaks are used to separate segments of code.
Indentation is used to create a pattern that is easy to follow.
Indentation is used to make it easier to follow the flow of logic in the code.
Answer:
b and d
Explanation:
Assume you are using the text's array-based queue and have just instantiated a queue of capacity 10. You enqueue 5 elements and then deque elements. Which indices of the internal array elements hold the remaining elements? a) 0 to 2 b) 7 to 9 c) 2 to 4 d) 1 to 3
Full question:
Assume you are using the text's array-based queue and have just instantiated a queue of capacity 10. You enqueue 5 elements and then deque 2 elements. Which indices of the internal array elements hold the remaining elements? a) 0 to 2 b) 7 to 9 c) 2 to 4 d) 1 to 3
Answer and Explanation:
If you instantiate a capacity of 10 for the queue, you have the queue a capacity of not more than 10 values.
To enqueue means to add an element to the array(if it's not full, n<10)
To dequeue means to delete an element from the array or queue(if n! =0)
From the question, for example:
We create a queue of capacity 10:
Queue q(10);
We add elements/enqueue 5 elements to the queue :
q.queueEnqueue(10);
q.queueEnqueue(5);
q.queueEnqueue(8);
q.queueEnqueue(9);
q.queueEnqueue(2);
If we print this out:
q. queueDisplay()
We would get:
10, 5, 8, 9, 2
We remove elements/dequeue 2 elements from the queue :
q. queuedequeue();
q. queuedequeue();
We print it out:
q. queueDisplay()
8 ,9, 2
We observe that deletion/dequeue starts from the front/first index.
We are left with indices 2, 3, 4 or 2 to 4
Note: the above methods/ functions and objects used are merely for example purposes. The queue uses a floating front design approach.
Are the blank space around the edges of the page
Answer:
The blank space around the edges of a sheet of paper — as with the page of a book — that surrounds the text is called the margin.
What are the ten main components of a report that would be delivered at the end of a data science project?
Answer:
The answer is below
Explanation:
The ten main components of a report that would be delivered at the end of a data science project are the following:
1. Cover page: the involves elements such as the title of the project, the name of the author, name of institution, date of publication
2. Table of Contents: this comprised information like chapters, topics, and subtopics
3. Abstract: a summary of the whole project
4. Introductory Section: a brief background study
5. Methodology section: this describes the methods used in gathering and analyzing the data
6. Data section: this shows the data gathered for the project. It is mostly represented in tables, histograms, pie charts, etc.
7. Analysis section: this describes what was analyzed
8. Result section: this described the outcome of the analysis
9. Conclusion section: this describes the whole outcome of the data project and what the author derived or concluded.
10. References: this describes the information about the works of other authors, the author used in building his background knowledge towards his data science project.
express cards functionalities
Answer:
ExpressCard, initially called NEWCARD, is an interface to connect peripheral devices to a computer, usually a laptop computer. The ExpressCard technical standard specifies the design of slots built into the computer and of expansion cards to insert in the slots.
How does natural gas move through pipelines from the well head to the end user thousands of miles away
Please help I don’t know
Answer: Go down 1 time, then to the left 3 times, then down 1, finally, go left 1 time.
Explanation:
Martin is responsible for translating the script into a visual form by creating a storyboard. Which role is he playing?
Martin is playing the role of a(n)
Answer:
The correct answer to this question is given below in the explanation section.
Explanation:
The question is about to identify the role of Martin, who converts script into visual form by creating a storyboard.
The correct answer to this question is:
Martin is playing the role of Production Design and he is working at the position of the production designer.
Before shooting a film, the production designer is the first artist who converts script into a visual form such as creating storyboards. And, that storyboard serves as the first film draft.
A storyboard is a series of sketches, paintings, etc arranged on a panel to show the visual progress of the story from one scene to the next. These storyboards are used from start to finish of the film. Because these storyboards or sketches serve as the visual guide for the director of the film throughout the production.
Answer:
Hi
Explanation:
THE ANSWER UP TOP IS WRONG LIKE DEAD WRONG
how is the information technology Career Cluster different from the others clusters?
Answer:
All career clusters use information technology in carrying out their work.
Explanation:
What is the extension of Qbasic ?
Answer:
bas
Explanation:
If a function receives an object as an argument and needs to change the objects member data, the object should be:_____________.
Question
If a function receives an object as an argument and needs to change the objects member data, the object should be:_____________.
A) passed by constant reference
B) passed by reference
C) passed by value
D) none of the above
Answer:
The correct answer is B)
Explanation:
The above question relates to computer programming.
Passing by reference is the same and can be used interchangeably with passing by address.
A special ID used by a computer's procesing unit for recording or tracking data is referred to as a memory address.
When the memory address of a calling function is passed on to the function, the function is said to have been passed by address or reference.
This enables changes to be made to the function or argument directly from the parameter.
Cheers
____________________________ and _________________________ are 2 positive impacts of the internet on businesses.
A)Competition and Easy Marketing
B)Improved Communication and Worrying security
C)Improved Communication and Increased unnecessary competition
D)Improved Communication and Easy Advertisement
Answer:
D)due to it we can have more profit with less time and wide area communication
meaning of leanness in organization
Partner Exercise: Implement a class Car with the following properties. A car has a certain fuel efficiency (measured in miles/gallon or liters/km – pick one) and a certain amount of fuel in the gas tank. The efficiency is specified in the constructor, and the initial fuel level is 0. Supply a method drive that simulates driving the car for a certain distance, reducing the amount of gasoline in the fuel tank. Also supply methods getGasInTank(), returning the current amount of gasoline in the fuel tank, and addGas(), to add gasoline to the fuel tank. Sample usage: Car myHybrid = new Car(50); // 50 miles per gallon myHybrid.addGas(20); // Tank 20 gallons myHybrid.drive(100); // Drive 100 miles double gasLeft = myHybrid.getGasInTank(); // Get gas remaining in tank You may assume that the drive method is never called with a distance that consumes more than the available gas. Supply a CarTester class that tests all methods.
PLS HELP IF U KNOW A LOT ABT SOCIAL MEDIA
Idk what’s going on with Pinterest but I can’t follow ppl, dm ppl or comment on stuff and it says an error (attached image) what can I do to fix this? Also I’ve tried logging in and out and I’ve tried deleting the app. Btw it’s on a business account
Answer:
Its probably your computer
Explanation:
Try restarting, shutting down and starting back up your computer/laptop. Or just move to a different device.
E-mails could possibly cause harm to computers due to which of the following?
A.Allow for misunderstandings
B.Carrying viruses
C.Updating system preferences
D.Allowing for global use
E-mails could possibly cause harm to computers due to carrying viruses option (C) is correct.
What is a computer?A computer is a digital electronic appliance that may be programmed to automatically perform a series of logical or mathematical operations. Programs are generic sequences of operations that can be carried out by modern computers.
As we know,
You receive emails every day with papers, pictures, or other electronic files attached. These files can occasionally include harmful viruses, Trojan horses, or malware that has been purposefully provided by someone looking to inflict harm or steal confidential personal data.
Thus, E-mails could possibly cause harm to computers due to carrying viruses option (C) is correct.
Learn more about computers here:
brainly.com/question/21080395
#SPJ2
Can someone help me to write a python code to save list form python to CSV file please?
f = open("MyFileName.csv", "w")
lst = ["Hello", "Hi", "Bye"]
f.write(str(lst))
f.close()
I didn't necessarily know what you meant by list form. This program works for me in pycharm. I had to install the CSV plugin though. If you encounter any errors, I'll try my best to help you.
what is the purpose of the new window command
Answer:
.
Explanation:
Answer:
It opens one of the current worksheets into a new window.
Explanation:
got it correct
If a student passes off an author’s work as his or her own, the student has
2. Write the output of:
a) CLS
A= 10
B = 20
C = 30
S=A+B+C
Av=S/3
Print "sum is:",s
Print "Average is:", Av
End