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Questions by ajaysoni1924

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0 answers

1

Gravner- probability
Each day, you independently decide, with probability p, to flip a fair coin. Otherwise, you do nothing. (a) What is the probability of getting exactly 10 Heads in the first 20 days? (b) What is the probability of getting 10 Heads before 5 Tails?

asked in Probability Oct 23, 2019

507 views

0 votes

3 answers

2

QUICK SORT- SELF DOUBT
In quick sort for sorting of n Numbers, the 75th greatest Element is selected as pivot using $O(n^2)$ time complexity algorithm than what is the worst case time complexity of quick sort. O($n^2$) O($n^3$) O(nlogn) O(n)

asked in Algorithms Sep 2, 2019

2.9k views

6 votes

1 answer

3

Digital logic- nptel assignment
Suppose we are using 4-bit carry lookahead adder modules to build a 64- bit adder with two-level carry lookahead, with ripple carry between the modules. If the delay of a basic gate (AND, OR, NOT) is 2 nanoseconds, the worst-case delay of the 64-bit adder will be ……….. nanoseconds.

asked in Digital Logic Aug 13, 2019

1.4k views

0 votes

1 answer

4

Self Doubt: Decidability
$L=\left \{\langle M_{1},M_{2}\rangle \text{ such that L}(M_{1})\prec L(M_{2}) \right \}$ is it recursive enumerable? here $L\left ( M_{1} \right )\prec L\left ( M_{2} \right )$ signifies language $L\left ( M_{1} \right )$ is reducible to $L\left ( M_{2} \right )$

asked in Theory of Computation Jul 15, 2019

619 views

1 vote

3 answers

5

Kurose and Ross Edition 6 Exercise 3 Question R18 (Page No 288)
True or false? Consider congestion control in TCP. When the timer expires at the sender, the value of ssthresh is set to one half of its previous value.

asked in Computer Networks Apr 18, 2019

1.4k views

1 vote

2 answers

6

Kurose and Ross Edition 6 Exercise 3 Question R17 (Page No 287)
Suppose two TCP connections are present over some bottleneck link of rate R bps. Both connections have a huge file to send (in the same direction over the bottleneck link). The transmissions of the files start at the same time. What transmission rate would TCP like to give to each of the connections?

asked in Computer Networks Apr 18, 2019

1.3k views

1 vote

1 answer

7

Kurose and Ross Edition 6 Exercise 3 Question R15 (Page No 287)
Suppose Host A sends two TCP segments back to back to Host B over a TCP connection. The first segment has sequence number 90; the second has sequence number 110. How much data is in the first segment? Suppose that the ... segment arrives at B. In the acknowledgment that Host B sends to Host A, what will be the acknowledgment number?

asked in Computer Networks Apr 18, 2019

12.9k views

1 vote

1 answer

8

Kurose and Ross Edition 6 Exercise 3 Question R14 (Page No 287)
True or false? Host A is sending Host B a large file over a TCP connection. Assume Host B has no data to send Host A. Host B will not send acknowledgments to Host A because Host B cannot piggyback the acknowledgments ... 4 bytes of data over a TCP connection to Host B. In this same segment the acknowledgment number is necessarily 42.

asked in Computer Networks Apr 18, 2019

4.9k views

0 votes

0 answers

9

Kurose and Ross Edition 6 Exercise 3 Question R13 (Page No 287)
Visit the Selective Repeat Java applet at the companion Web site. Have the source send five packets, and then pause the animation before any of the five packets reach the destination. Then kill the first packet and resume ... what happens. Finally, try sending six packets. What happens? How selective repeat and go back-n is different?

asked in Computer Networks Apr 18, 2019

249 views

0 votes

1 answer

10

Kurose and Ross Edition 6 Exercise 3 Question R12 (Page No 286)
Visit the Go-Back-N Java applet at the companion Web site. Have the source send five packets, and then pause the animation before any of the five packets reach the destination. Then kill the first packet and ... destination and kill the first acknowledgment. Describe again what happens. Finally, try sending six packets. What happens?

asked in Computer Networks Apr 18, 2019

938 views

0 votes

0 answers

11

Kurose and Ross Edition 6 Exercise 3 Question R11 (Page No 286)
Suppose that the roundtrip delay between the sender and receiver is constant and known to the sender. Would a timer still be necessary for protocol rdt 3.0 as shown in the figure, assuming that packets can be lost? Explain.

asked in Computer Networks Apr 18, 2019

376 views

1 vote

1 answer

12

Kurose and Ross Edition 6 Exercise 3 Question R10 (Page No 286)
In our rdt protocols, why did we need to introduce timers?

asked in Computer Networks Apr 18, 2019

506 views

0 votes

1 answer

13

Kurose and Ross Edition 6 Exercise 3 Question R9 (Page No 286)
In our rdt protocols, why did we need to introduce sequence numbers?

asked in Computer Networks Apr 18, 2019

365 views

1 vote

2 answers

14

Kurose and Ross Edition 6 Exercise 3 Question R8 (Page No 286)
Suppose that a Web server runs in Host C on port 80. Suppose this Web server uses persistent connections and is currently receiving requests from two different Hosts, A and B. Are all of the requests being sent through the ... If they are being passed through different sockets, do both of the sockets have port 80? Discuss and explain.

asked in Computer Networks Apr 18, 2019

1.4k views

3 votes

1 answer

15

Kurose and Ross Edition 6 Exercise 3 Question R7 (Page No 286)
Suppose a process in Host C has a UDP socket with port number 6789. Suppose both Host A and Host B each send a UDP segment to Host C with destination port number 6789. Will both of these segments be directed to the same ... Host C? If so, how will the process at Host C know that these two segments originated from two different hosts?

asked in Computer Networks Apr 18, 2019

1.3k views

1 vote

1 answer

16

Kurose and Ross Edition 6 Exercise 3 Question R6 (Page No 286)
Is it possible for an application to enjoy reliable data transfer even when the application runs over UDP? If so, how?

asked in Computer Networks Apr 18, 2019

563 views

1 vote

2 answers

17

Kurose and Ross Edition 6 Exercise 3 Question R5 (Page No 286)
Why is it that voice and video traffic is often sent over TCP rather than UDP in today’s Internet? (Hint: The answer we are looking for has nothing to do with TCP’s congestion-control mechanism.)

asked in Computer Networks Apr 18, 2019

452 views

2 votes

1 answer

18

Kurose and Ross Edition 6 Exercise 3 Question R4 (Page No 286)
Describe why an application developer might choose to run an application over UDP rather than TCP.

asked in Computer Networks Apr 18, 2019

477 views

1 vote

1 answer

19

Kurose and Ross Edition 6 Exercise 3 Question R3 (Page No 286)
Consider a TCP connection between Host A and Host B. Suppose that the TCP segments traveling from Host A to Host B have source port number x and destination port number y. What are the source and destination port numbers for the segments traveling from Host B to Host A?

asked in Computer Networks Apr 18, 2019

1.5k views

0 votes

0 answers

20

Kurose and Ross Edition 6 Exercise 3 Question R2 (Page No 285)
Consider a planet where everyone belongs to a family of six, every family lives in its own house, each house has a unique address, and each person in a given house has a unique name. Suppose this planet has a mail ... protocol, does the mail service ever have to open the envelope and examine the letter in order to provide its service?

asked in Computer Networks Apr 18, 2019

498 views

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