DBATU Model MCQ - Computer Networks

Welcome to your Computer Networks, dated April 19, 2021

1. What is the size of Source and Destination IP address in IP header?Deselect Answer

4 bits

8 bits

16 bits

32 bits

2. What does Router do in a network?Deselect Answer

Forwards a packet to all outgoing links

Forwards a packet to the next free outgoing link

Determines on which outing link a packet is to be forwarded

Forwards a packet to all outgoing links except the originated link

3. What is the size of Host bits in Class B of IP address?Deselect Answer

4. A high speed communication equipment technically would not be needed for ?Deselect Answer

E-mail

transferring large volume of data

supporting communication between notes of a LAN

All of the above

5. Which of the following are non polling systems?Deselect Answer

TDMA

Stop & wait

continuous ARQ

carrier sense system

6. How many characters per sec ( 7 bits + 1 parity ) can be transmitted over a 2400 bps per line if the transfer is synchronous ( 1 start+ 1 stop bit ) ?Deselect Answer

300

240

275

250

7. The network topology that supports bi-directional links between each possible node is ?Deselect Answer

ring

star

tree

mesh

8. DHCP Server provides _____ to the client.Deselect Answer

Protocol

MAC address

IP address

Network address

9. Which of the following layer is not network support layer?Deselect Answer

Transport Layer

Network Layers

Data link Layer

Physical Layer

10. Start & stop bits are used in serial communication forDeselect Answer

error correction

error detection

synchronization

slowing down the communication

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