Recent questions and answers in Computer Networks - GATE CSE Doubts

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Self_Doubt_computer_networks
In Fragmentation, is it necessary for the number of data bytes in the last fragment to be multiple of 8?

asked 4 hours ago in Computer Networks by vikas999 (6 points) | 2 views

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MADE EASY GATE MOCK 2K19 CN
In the given n/w station A needs to send a payload of 1600 Bytes from its network layer to Station B. If fragmentation is done then actual data size to be transmitted is:

asked 17 hours ago in Computer Networks by shankargadri (8 points) | 5 views

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Made easy 2019 gate mock test
Consider the following router with three subnets:- If the above network uses class c address then 192.203.16.0 then DBA for department Y is? 255.255.255.0 255.255.255.254 255.255.254.192 255.255.254.255

asked 1 day ago in Computer Networks by shankargadri (8 points) | 5 views

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doubt in UDP packet dirction
if we are given upd packet 5EFA 00FD 001C 3297 , can we find if it going from server to client or vice versa ? is it possible to determine this?

asked 2 days ago in Computer Networks by mehul vaidya (8 points) | 6 views

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ACE GATE Mock Test 10 Q40 IP address
Kindly share the steps for the solution. Thank you.

answered 4 days ago in Computer Networks by Vimal Patel (341 points) | 11 views

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ACE GATE Mock Test 11 Q37 Fragmentation
Answer is given 6. But I am getting 7. Please help to clarify my doubt thanks. #fragments= ceil(2260/376) = 7

asked 4 days ago in Computer Networks by DukeThunders (288 points) | 8 views

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Behrouz A. Forouzan
A client uses UDP to send data to a server. The data are 16 bytes. calculating the efficiency of transmission at the data link layer. Assume no options for the IP header and use Ethernet at the data link layer.

asked Nov 27 in Computer Networks by amit nagarkoti (12 points) | 3 views

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ACE TEST FULL TEST
I HAVE A DOUBT SHOULD THE LAST IP BE ALL 1’S IN HOST PART ????

asked Nov 26 in Computer Networks by Shawn Frost (24 points) | 7 views

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ACE Test Series CSIT_P_39 Q13: Ip address

asked Nov 26 in Computer Networks by DukeThunders (288 points) | 4 views

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ACE test sereies

asked Nov 26 in Computer Networks by Rajesh Panwar (40 points) | 15 views

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ACE Test Series 54 CN- Routing Table
What is the fastestway to solve this problem without drawing the nodes?

asked Nov 25 in Computer Networks by DukeThunders (288 points) | 5 views

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1 answer

doubt on hamming code question asked at Gateoverflow

answered Nov 21 in Computer Networks by Satbir (3.7k points) | 20 views

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self doubt-ICMP
“No ICMP error messages are sent for a fragmented datagram if it is not the first fragement”. Can u explain why suchh a rule is there?

answered Nov 20 in Computer Networks by Priyansh Singh (118 points) | 10 views

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self doubt-IP
TCP guarantees in-order delivery .. Does IP guarantees inorder delivery .? I think it does,because of the fields(MF(more fragments),fragment offset,and identification number),the receiver can reassemble the packets using the identification number which is on every packet

answered Nov 20 in Computer Networks by Priyansh Singh (118 points) | 8 views

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2 answers

Ace test series Computer networks
Can some one explain how (d) is the answer

answered Nov 20 in Computer Networks by Priyansh Singh (118 points) | 45 views

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Path Vector Routing
Do we have Path vector routing along with DVR and LSR in syllabus?

asked Nov 19 in Computer Networks by Pratyush Priyam Kuan (381 points) | 5 views

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self doubt-TCP connection establishment
If suppose data transfer is going on from the client(using socket S1) to server (using socket S2).then suddenly while data transfer is going on the server receives a SYN packet from the same client having the same socket S1.to the same socket S2. what will the server do? Will it send an RST flag?

asked Nov 19 in Computer Networks by Doraemon (84 points) | 7 views

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Ace test series : Subnetting
consider class c network with 3 bits subnetting then calculate number of subnets and number of hosts per subnet? 8 and 32 b. 6 and 32 c. 6 and 30 d. 6 and 180

asked Nov 17 in Computer Networks by Rahul Burman (6 points) | 15 views

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UEMK GATE MOCK CN
Ans should be 4 right?

asked Nov 16 in Computer Networks by Debapaul (308 points) | 8 views

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Madeeasy test series 2020 computer networks
In this question I am facing problem while finding the value of y. According to distance vector routing ,we will stop the algorithm once all the nodes get infinity.In the solution provided for the same, the algo. is terminated on getting value ... is how are we taking infinity as 8 in this question.Is there any way to find the infinity value.Kinldy help.

asked Nov 15 in Computer Networks by Alka Kasotia (11 points) | 9 views

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Network Security
I am having trouble in learning network security, if someone could provide some resources through which I can learn all the concepts for Gate, it would be a real help.

asked Nov 14 in Computer Networks by luc_Bloodstone (26 points) | 13 views

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Made easy test sliding window
Suppose station X sends a message with $15$ packets to station B using a sliding window of size $4$, selective repeat in used and every $5^{\mathrm {th}}$ packet is lost, the number of transmissions required to send all $\mathbf {15}$ packets to Y__________. What is the right way to solve this question? [closed]

asked Nov 14 in Computer Networks by `JEET (164 points) | 24 views

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1 answer

Computer Networks ACE Test Series Fragmentation Doubt

answered Nov 14 in Computer Networks by Skscool007 (9 points) | 17 views

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Self_Doubt_Computer_Network_TCP_Checksum
TCP has an end-to-end checksum that covers part of IP header and TCP header and data. When the receiver receives packet whose checksum is not matching, then it can do the following things. 1. Discard the segment and send ACK to sender ... bytes its expect to the receiver. 2. Discard the segment and do nothing. Which one of the above actions is preferable?

asked Nov 13 in Computer Networks by nandani17 (12 points) | 8 views

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Self doubt on loopback address
Why is 127.x.x.x range reserved for loopback address? Why can't we just put source address and destination address same? Won't it have the same effect? Then why waste an entire IP range for LOOPBACK ADDRESS?

asked Nov 11 in Computer Networks by KINGSLAYER (9 points) | 12 views

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1 answer

Uppcl ae2019
In an RSA cryptosystem a participant use two prime number p=3 and q=11 to generate his public key and private key.If the private key is 7,the how will the text COMPUTER be encrypted using public key? 1.27 9 19 4 12 4 25 27 2.9 27 4 25 21 8 26 24 3.27 9 19 4 21 8 26 24 4.9 27 4 25 12 4 25 27

answered Nov 8 in Computer Networks by Mk Utkarsh (300 points) | 18 views

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Http(Persistent vs Non-Persistent) - MadeEasy Test series [closed]

asked Nov 8 in Computer Networks by luc_Bloodstone (26 points) | 10 views

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ACE Academy booklet 5
Consider a class $\mathbf B$ network subnet mask for a network is $255.255.255.240$. The number of hosts per subnet is: (a)$2^2-2$ (b)$2^4-2$ (c)$16$ (d)$2^3-2$ I am trying to do it this way: NID + SID = Number of 1's In class B network, NID has: 16 ... $16 + 12 = 28$ bits are fixed. On substituting, all $0'\text{s}$ in rest $4$ parts. Number of SIDs $=2^{4}-2$ Am I right?

asked Nov 6 in Computer Networks by `JEET (164 points) | 16 views

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MadeEasy Test Series- Fragmentation
In this they asked about number of fragments and last fragment size. I know how to solve this but where I have stuck is I scaled the header length and took it as 60 B(15 x 4) because it is less than minimum IP header length. But in the ... tell me why they did this? Ans => Number of fragments = 7, last fragment offset = 360 and last datagram length = 120.

answered Nov 5 in Computer Networks by GAITONDE (1.6k points) | 29 views

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Made Easy Computer Networks Question on Timers
Consider the following statements: S1 : Persistent timer is used to prevent deadlock in TCP timers. S2 : Keep alive timer is runs for twice the maximum packet life time to make sure that all packets are died off when connection is closed. Which of the above statement is correct? A-S1 only B-S2 only C-Both S1 and S2 D-Neither S1 nor S2

asked Nov 3 in Computer Networks by Shivateja MST (65 points) | 21 views

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MadeEasy : COMPUTER NETWORKS-1 (GATE - 2020) - Q17

answered Oct 24 in Computer Networks by Satbir (3.7k points) | 29 views

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MadeEasy : COMPUTER NETWORKS-1 (GATE - 2020) - Q7
Suppose station X sends a message with $15$ packets to station B using a sliding window of size $4$, selective repeat in used and every $5^{\mathrm {th}}$ ... way to solve this question? Can you please show the solution Also, what would be the answer is GBN was used N=4.

answered Oct 24 in Computer Networks by Satbir (3.7k points) | 43 views

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MadeEasy COMPUTER NETWORKS-2 (GATE - 2019) Q17
Ans is 81.8

answered Oct 24 in Computer Networks by Satbir (3.7k points) | 26 views

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1 answer

MADEEASY TOPICWISE : COMPUTER NETWORKS-2 (GATE - 2020) Q7 Leaky Bucket

answered Oct 24 in Computer Networks by Satbir (3.7k points) | 10 views

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1 answer

TOPICWISE : COMPUTER NETWORKS-2 (GATE - 2020) - Q5

answered Oct 24 in Computer Networks by Satbir (3.7k points) | 13 views

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MadeEasy : COMPUTER NETWORKS-1 (GATE - 2020) - Q9 on CSMA collision

asked Oct 24 in Computer Networks by DukeThunders (288 points) | 16 views

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MadeEasy COMPUTER NETWORKS-2 (GATE - 2019) Q16

asked Oct 24 in Computer Networks by DukeThunders (288 points) | 15 views

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MadeEasy COMPUTER NETWORKS-2 (GATE - 2019) Q15 HTTP Numerical [closed]

asked Oct 24 in Computer Networks by DukeThunders (288 points) | 15 views

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MadeEasy COMPUTER NETWORKS-2 (GATE - 2019) Q9 Wrap ARound Time [closed]

asked Oct 24 in Computer Networks by DukeThunders (288 points) | 7 views

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MadeEasy COMPUTER NETWORKS-2 (GATE - 2019) Q6
What is the procedure to solve this question [closed]

asked Oct 24 in Computer Networks by DukeThunders (288 points) | 8 views

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Recent questions and answers in Computer Networks

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