Home Interview Questions and AnswersPlacement Papers with Answers Samsung Placement paper For Graduates part-2


1) out of the following which supports error checking and error correction in data link layer
a)802.2 LLC   b)802.3 CSMA/CD     c)802.4 Token Bus     d)802.5 Token Ring

2)How many bits of IP address are required to make 8 subnets
a)1 b) 2 C) 3 d)4
Ans) 4 (as 000 and 111 0f 3 bits are not valid subnets so take 4 bits)

3)Which statement were incorrect regarding multicast and broadcast
Ans) regarding whether NIC checks the multicast address or cpu

4) network equipments make hierarchy in which topology
a) bus   b) star   c) ring   d) tree

5)which of the following is not CDMA technology
a) DS-FH (Discrete spectrum-freq hoping)   b) DS_FT    C) DS-   d) TDMA-FS.

6) Determine network ID of classful IP address
a)192 b)192.42 c)192.42.14 d)

7) what is the advantage of ADSL (assymetric digital subscriber line) over modem

 Ans) it has normal uplink band width but higher down link bandwidth (something like that)

8)Min sampling freq for 20-20kHz analog signal is
a) 20khz b)40khz c)44.1khz d) 20hz

9)Adventages of digital over analog signal:
a) noise immunity b) data security and integrity c) efficient transmission d) all of the above

10) MPEG stands for

Ans) Moving Picture Experts Group

11) Question on Umbrella cell

Ans) it covers micro cell only.

12) why channel coding is done
a) to secure data b) to maintain integrity of data c) effective transmission of data d) all of above

13)Question on error resilient and sustain to burst which is
a) Solomon code b) cyclic c) gray d) Huffman  Ans)

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