CS601-Data communication finalterm papers

my today computer networks paper

what are two important principal that IP adress hierarchy grantee? 2 marks
does OSPF share information within an area or it allow communication b/w area? 2 marks
where should ICMP msg be sent? 2 marks
how is the TCP is reliable protocol? 2 marks
where are the connection orients service use connection identifire instead of full adress? 2 marks
sumrize IP multicast semsntics? 2 marks
internet routing how does a host join and leave the gorup?3 marks
write the new feature if ipv6? 3marks
six services providing by TCP?3 marks
difference b/w explict and implicit frame type? 3 marks
what is the first adress of block if the adress is 140.120.84.24/20 ?3 marks
transit routin? 3 marks
feature of ipv 6 ?5 marks
major issue designing protocol like TCP?5 marks
characteristics od BGP? 5 marks

fellows! paper of cs601 in attached and please i have marked answers which i marked in paper, so please do not believe on these answer try to find these answer in handouts and past papers. i am 100% sure that majority of answers will be incorrect. so please be careful.

Total time 120 minutes

Total question 45

Total marks ??? please koi mujhay is kay total marks bta day.

30 MCQs.

15 long.



Please do not suppose these answers correct because I am not student, much efficient or good, but the answer which I marked, are there, majority are incorrect and please go through the handouts to find correct answer. I don’t know correct answers, and do not let me know the correct answer I have attempted my paper so let it go now.



The inversion of the level at 1 bit is called as __________
► NRZ-L
► NRZ-I
► RZ

In selective-reject ARQ, only the specific damaged or lost frame is_____________.
► Retransmitted
► Forwarded
► Selected
► Rejected



YMODEM has _________Byte of data unit.

► 1024

► 256

► 128

► 512





Which of the following sublyer, resolves the contention for the shared media
► MAC
► LLC
► Physical



Like 10 Base 5, 10 Base 2 is a _________ topology LAN
► Ring
► Mesh
► Star
► Bus

At the CRC generator, __________ added to the data unit after the division process

► 0s are

► 1s are

► The polynomial

► The CRC remainder is



Flow control is needed to prevent ___________.

► Bit errors

► Overflow of the sender buffer

► Overflow of the receiver buffer

► Collision between sender and receiver







In Y-MODEM Multiple files can be sent simultaneously

► True

► False



In 56K Modems Max Uploading speed is ______ bytes and downloading speed is ______ byte.

40K, 56K

33.6K, 56K

56K, 33.6K

None of given



If db is amplified then attenuation is ------------------

Positive

Negative

Zero

None of the above



Amplifiers are used to __________the signal to heat.

Amplify

Rectify

Testify

Nullify



_________requires the maximum number of I/O ports.

Bus

Star

Mesh

Ring



There are ________ basic categories of multiplexing.

3

4

2

5



In _____________ transmission, bits are transmitted over a single wire, one at a time.

Asynchronous serial

Synchronous serial

Parallel

Asynchronous & Synchronous serial



In_____________ transmission, bits are transmitted over their own wires

Asynchronous serial

Synchronous serial

Parallel

Asynchronous & Synchronous serial



EIA 232 allows for a maximum bit rate of __________Kbps.

40

30

20

10



In CRC the quotient at the sender _____________

Becomes the dividend at the receiver

Becomes the divisor at the receiver

Is discarded

Is the remainder



In line discipline after the data transmission, the sending system finishes with an _____________ frame

EOT

EKT

ENT

ESP



When we talk about [something_I_forgot] then we are referring to

The air

Water

Earth

On more option is there I have forgotten

This answer must be correct because some frequencies or mode of frequency

One of them like

Ionosphere uses which frequencies.

Options were in speeds of frequencies in Mhz and ghz



When a collision is detected in a network using CSMA/CD _________

The frame is immediately resent

A jam signal is sent by the station

The back off value is set to 0

The back off value is decremented by 1





Which one has more overhead, a repeater or a bridge? Explain your answer. [3]



Define high frequency [HF] and super high frequency [SHF], which devices uses these frequencies [3]



Write all steps of checksum method. [3]



Differentiate internet and the internet? [3]

This question confused me and what did I answer in this question

I differentiated “Internet and Intranet”. This is nice confusing question for me. I do not know any thing about their difference.



What are the differences in between bit oriented and character oriented protocols [5]

thanks :32:

thank u soo much for this guide
Allah bless you