IMPORTANT QUESTIONS FOR NTDD VIVA.

What are the different layers in OSI model ?2.

What are the different layers in TCP/IP model ?3.

Difference between OSI & TCP/IP reference model.4.

What is the advantage of layering ?5.

Difference between packet and circuit switching ?6.

What are the functions of data link layer ?7.

What is ALOHA ?8.

Slotted aloha.9.

Difference between Aloha & Slotted Aloha.10.

CSMA/CD.11.

Bit stuffing.12.

Even parity and odd parity examples.13.

Hamming code examples.14.

What is CRC ?15.

What is flow control ?16.

Explain stop & wait protocol.17.

Sliding window protocol.18.

What is token bus & token ring.19.

Time Division Multiplexing (TDM) & Frequency Division Multiplexing (FDM).20.

What is the maximum size of frame ?21.

What is the maximum size of packet ?22.

What is routing ?23.

What is congestion ?24.

Difference between congestion control & flow control.25.

What is subnet ?26.

What is TCP segment header size.27.

What is three way handshaking.28.

Hub ; Bridge ; Switch (Definition & difference).29.

What is distributed computing.30.

Difference between Distributed & centralized computing.31.

What is the remote procedure call ?32.

Difference between public key & private key.33.

Leaky bucket algorithm.34.

Difference between IPV4 & IPV6.35.

SNMP, OSPF, ARP, RARP, BGP, ICMP, BOOTP