Networking AllOther Interview Questions
Questions Answers Views Company eMail

Is the nyquist theorem true for optical fibre or only for copper wire ? Explain.

2

Why do data link layer protocols position the checksum in the trailer and not in the header ?

3

Compare the maximum window size in go-back-N and selective-repeat ARQs.

2




Why does ATM use the cell of small and fixed length ?

4

Give the equivalent binary word for the polynomial x8+x2+x+1.

3

In which of the 7 layers of OSI will a service handling conversion of characters is from EBCDIC to ASCII be normally implemented ?

3

Where is the special IP address 127.0.0.0. used ?

3

Convert the IP address 197.228.17.56 into binary ?

2




Compare satellite with fiber as a communication medium and enumerate the application areas where satellite still holds a niche(or special)marker.

1

A binary signal is sent over a 3-khz channel whose signal-to-noise ratio is 20 db.Calculate the maximum achievable data rate ?

1

What does ‘data transparency’ mean ? With the help of a flow chart, explain the process of bit de-stuffing at the receiver’s end.

2

Explain The ATM reference model

2

Explain HDLC

3

Explain Salient difference between ISO-OSI and TCP/IP models.

3

Explain Network Topologies and their uses.

4


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Un-Answered Questions { Networking AllOther }

Subnet the class C network address 198.67.25.0 into eight subnets. Why are the ‘all ones’ and ‘all zeroes’ subnets not used ?

2


Why is a data link layer switch preferred over a hub ?

2


Explain different kinds of Switching techniques.

3


Which layer is used to detect and correct errors

4


What is the difference between TFTP and FTP application layer protocols?

12741


What do you mean by link to link layers of OSI reference model? Explain their functions briefly?

3


Dear Sir, I have installed 40 HCL thin clients model BVX 4000 on windows 2003 server in the RDP mode, Processor is xeon 3040 1.667 GHZ, with 320 GB SATA Hard Disc and and 1 GB RAM ECC DDR II RAM , in have also expanded the RAM to 8 GB. but still the Graphics and ppt are opening in frames. please do suggest me how can i use these thin Clients to work in the normal pc mode so that the graphics( Photos .JPEG images and normal power point presentations.? Regards ather.

980


The physical layer service is a non-confirmed service. Assume that some bits of data are lost during transmission over physical media, which layer will detect the loss and take some remedial measures. Explain any one method clearly depicting how this operation is performed.

2


What is the difference between boundary level masking and non- boundary level masking? Give examples

3


Which layer is used to convert packets to frame

3


What is ISO-OSI reference model ? Compare it with TCP/IP reference model.

2


what is scsi?. what we do if scsi/scsi drive failed?.

754


what happens when two consigitive ports of switch are connacted using one cross cabel with each other?(how the whole network gets down)

1098


What is the advantage of Ring network ? Compare it with ethernet

1165


Difference Between DDR1, DDR2 and DDR3 memories.

1458