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Recent questions tagged ip-packet

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1

IP Packet question
Consider and IP packet arrived at a router of size 1850 bytes. If the header length field in IPv4 header is 1010 and the packet is sent to a router whose Maximum transmission unit is 160 bytes then what is the number of fragments that the IP packet will be divided? 14 15 16 17

Sahil_Lather asked in Computer Networks Jan 27

by Sahil_Lather

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2

Computer Network
Let host X sends a file a size of 1500 byte to host Y through routers R1, R2, R3 and R4 respectively in two different ways. Each packet contains 100 bytes of header information along with the user data. Assume that the bandwidth of each link is 107 B/s ... difference between the time taken to send the packet in first case and the time taken to send the packet in second case in μs?

Sahil_Lather asked in Computer Networks Jan 27

by Sahil_Lather

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3

MTU question from computer networks
Consider an IP packet with a length of 4,500 bytes that includes a 20-byte IPv4 header and a 40-byte TCP header. The packet is forwarded to an IPv4 router that supports a Maximum Transmission Unit (MTU) of 600 bytes. Assume that the length ... fragment will be 600 Bytes. The last fragment size will be 468 Bytes. The fragment offset in the second fragment is 144.

Sahil_Lather asked in Computer Networks Jan 27

by Sahil_Lather

76 views

1 vote

2 answers

4

IPV4 Harder Numerical from Computer Networks
An IPv4 datagram has arrived with the following information in the header (in hexadecimal): Ox45 00 00 54 00 03 58 50 20 06 00 00 7C 4E 03 02 B4 OE OF 02 a. Is the packet corrupted? b. Are there any options? c. Is the packet ... many more routers can the packet travel to? f. What is the identification number of the packet? g. What is the type of service?

vashbhi asked in Computer Networks Dec 18, 2022

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2 answers

5

Self doubt CN
In the connection termination phase, suppose the FIN segment from the client-side contains data ranging from sequence no 100 to 200, So will the ACK no from the server start from 201 or 202? Will the FIN flag consume 1 extra sequence number at the end, ... context of my question, will that sequence number be 99, before the beginning of the data segment or 201, after the data segment

tusharb asked in Computer Networks Jan 24, 2022

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2 answers

6

Self doubt CN
Can the header length of IPV4 change at the router? If yes, then why?

tusharb asked in Computer Networks Jan 22, 2022

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2 answers

7

NIELIT 2016 MAR Scientist B - Section C: 55
A packet switching network is free. can reduce the cost of using an information utility. allows communications channel to be shared among more than one user. both (B) and (C).

Lakshman Patel RJIT asked in Computer Networks Mar 31, 2020

by Lakshman Patel RJIT

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1 answer

8

ISI-PCB-2015-C1-b
A $64000$-byte message is to be transmitted over a $2$-hop path in a store-and-forward packet-switching network. The network limits packets toa maximum size of $2032$ bytes including a $32$-byte header. The trans-mission lines in the network are error free and have a speed of $50$ ... answer as $1*3*(T_t+T_p) + \;31*T_t$ where $T_t=0.325\; ms$ and $T_p=3.333\; ms$. Please Confirm.

ankitgupta.1729 asked in Computer Networks Mar 25, 2019

by ankitgupta.1729

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9

UPPCL AE 2018:29
Which of the following best describes the usage of the $\text{TTL}$ (Time to Live) field of an $\text{IP}$ packet? Improve throughput Prevent packet from wandering around forever Reduce packet transmission delay Detect whether any error has been introduced in the packet

Lakshman Patel RJIT asked in Computer Networks Jan 5, 2019

by Lakshman Patel RJIT

141 views

2 votes

2 answers

10

# CN TCP connection establishment doubt about MSS
Say Client buffer is of 12000 Bytes and MSS is 1200 B and this info is sent to server and now server send the info in (SYN +ACK) segment as Server Buffer = 18000 B and MSS is 600 B Now in data transfer phase does both Client and ... 1200, 600) = 600 Bytes? Or does the sever will send 1200 Bytes segments to C and C sends 600 B segments to server?

iarnav asked in Computer Networks Dec 16, 2018

by iarnav

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2 answers

11

Fragmentation of packet
Which of the following statements are True ?

Na462 asked in Computer Networks Dec 2, 2018

by Na462

1.0k views

1 vote

3 answers

12

MAC address, IP address, transmission of packet from one point to another.
I was studying how the packet is transmitted from source to destination, what i understood is, we need IP address to identify the network in which our destination is present, while MAC address (data link layer address) ... .com/change-mac-address-in-windows). How is it possible if MAC address is present in the NIC?

Ollie asked in Computer Networks Oct 19, 2018

by Ollie

2.2k views

3 votes

1 answer

13

Maximum Segment Size (MSS in TCP) vs Maximum Transmissible Unit (MTU in Data Link)
It is known that any network can only transmit data packet size equal to (or less than) MTU allowed in the network. If that is the case, and if we have a Path MTU discovery in place, why is ... ) than MTU, will only burden Network Layer with fragmentation overhead. Is there any significant advantage of using MSS ?

Arunav Khare asked in Computer Networks Feb 6, 2018

by Arunav Khare

856 views

2 votes

1 answer

14

Ace Test Series: Computer Networks - Packet Switching With Pipelining

Ismail asked in Computer Networks Jan 26, 2018

by Ismail

555 views

1 vote

0 answers

15

Doubt regarding a question of GATE2014
Can someone please throw some light on this? It's real confusing for me.

Nymeria asked in Computer Networks Jan 17, 2018

524 views

5 votes

1 answer

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MadeEasy Test Series: Computer Networks - Ip Packet
If a datagram of size 4000 bytes from transport layer arrives at network layer and it has to be forwarded through a link with maximum capacity of 800 bytes. Then calculate the number of fragments needed if the header size is 20 bytes. Also calculate the data size of the last fragment.

MIRIYALA JEEVAN KUMA asked in Computer Networks Jan 2, 2018

by MIRIYALA JEEVAN KUMA

1.6k views

1 vote

2 answers

17

MadeEasy Test Series 2017: Computer Networks - Ip Packet
Consider station “A” send data to station “B”. Data frame contain MAC address, IP address and port address. Which of the following address may change on intermediate router A Destination IP address B Destination MAC C Source MAC D Source IP address

rahul sharma 5 asked in Computer Networks Dec 30, 2017

by rahul sharma 5

974 views

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1 answer

18

Maximum line speed in MBPS
IP packets whose total length (data plus header) is 16Kb basting out of a router live for 15 seconds. The maximum line speed (in MBPS) of the router can operate at without cycling through the IP datagram identification number space is? Please help and I ... to 16Kb . What I know Identification number is 16 bit in IP. Wrap around Time=Number of byte/Bandwidth. Thanks :)

sunil sarode asked in Computer Networks Dec 12, 2017

by sunil sarode

2.1k views

1 vote

2 answers

19

payload of a packet
Suppose a packet of length 1800 bytes with minimum header size enter a local area network with MTU (Maximum transfer unit ) of 500 bytes, then how many fragments will be generated from the packet and what is size of the payload of the last packet ?

Warlock lord asked in Computer Networks Dec 11, 2017

by Warlock lord

1.8k views

2 votes

1 answer

20

Computer Network | Optimum Packet Size
I think my answer is right ...Please Explain

rahulsangwn asked in Computer Networks Oct 28, 2017

1.3k views

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1 answer

21

Option field when IP packet has minimum size of 20 bytes?
When the IP packet has minimum size (20bytes), what happens to option field. Is it not present or present with all bits set to 0 (all 40bytes of 0's)?

Mayank Joshi asked in Computer Networks Sep 6, 2017

by Mayank Joshi

597 views

0 votes

3 answers

22

While TCP is a connection oriented service then why its segment follows different path.
I am reading Forouzan in that I have stuck here, I know that. TCP is connection oriented service, means it all segments follow same path, and segments are in order delivered. But it says that TCP ... . How it is happening. Consider this screen shot of Forouzan:- Please explain the proper reason behind it.

Shubhanshu asked in Computer Networks Aug 23, 2017

1.6k views

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1 answer

23

Computer network MSS and MTU
Are these definations of MSS and MTU correct?? MSS is maximum payload of TCP segment. TCP segment (MSS + TCP header) For IPpacket, it consists of (MSS + TCP header + IP header) And payload of IP packet means (TCPheader + MSS) Ethernet frame ... Also is fragmentation always done at router?? Can it be done by source?? I am really confused about these terms. Plz verify.

Rahul Jain25 asked in Computer Networks Feb 8, 2017

by Rahul Jain25

2.5k views

7 votes

5 answers

24

GateBook Mock-Test-2
Suppose datagrams are limited to 1,500 bytes (including header) between source Host A and destination Host B. Assuming a 20-byte IP header and a 20-byte TCP header, how many datagrams would be required to send an MP3 consisting of 4 million bytes?

smartmeet asked in Computer Networks Feb 7, 2017

5.3k views

3 votes

3 answers

25

Packet Switched Network [GateBook]

biranchi asked in Computer Networks Jan 24, 2017

858 views

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Recent questions tagged ip-packet