COMPUTER NETWORK MCQS

1) Which multiplexing technique transmits analog signals? 
 A. FDM
 B. Synchronous TDM
 C. Asynchronous TDM
 D. None of these
 Ans:- A

2) A proxy server is used for which of the following? 
 A. To provide security against unauthorized users
 B. To process client requests for web pages
 C. To process client requests for database access
 D. To provide TCP/IP
 Ans:-B

3) Which of the following topology is least affected by addition\removal of a node? 
 A. Ring
 B. Star
 C. Bus
 D. Net
Ans:- A

4) A small network making up the internet and also having a small number of computers with in it is called 
 A. Host
 B. Address
 C. Sub domain
 D. Domain
Ans:-C 

5) The ground station in VSAT communication is called 
 A. HTTP
 B. Multiplexer
 C. Hub
 D. Repeater
Ans:-B

6) T switch is used to 
 A. Control how messages are passed between computers
 B. Echo every character that is received.
 C. Transmit characters one at a time.
 D. Rearrange the connection between computing equipments.
Ans:-D

7) Which of the following is a product of LLC sublayer? 
 A. 802.3 frame
 B. 802.5 frame
 C. PDU(Protocol Data Unit)
 D. Preamble
Ans:-C

8) Which one of the following is an error reporting protocol? 
 A. ARP
 B. ICMP
 C. TCP
 D. UDP
Ans:-B

9) Which protocol is used to convert IP addresses to MAC address? 
 A. IP
 B. RARP
 C. In ARP
 D. ARP
Ans:-D

10) How many Registry centers have been defined for IPv6 
 A. 3
 B. 4
 C. 5
 D. 6
Ans:-A

11) Which of the following is the simplest error detection method? 
 A. Parity check
 B. Longitudinal Redundancy Checking
 C. Checksum Checking
 D. Cyclic Redundancy Checking
Ans:-A

12) Network address prefixed by 1110 is a 
 A. Class A address
 B. Multicast address
 C. Class B address
 D. Reserve address
Ans:-B

13) Brouter 
 A. Is a type of bridge 
 B. Works at all the layers of OSI model
 C. Is able to bridge those protocols that are not routable 
 D. None of the above
Ans:-C

14) Which company develops the TCP/IP protocol for networking? 
 A. IBM
 B. DEC
 C. NOVELL
 D. DARPA
Ans:-D

15) On which layer of the OSI model the router configuration reside :- 
 A. Transport
 B. Network
 C. Logical link
 D. Physical
Ans:-B

16) Which is the following is not an analog to analog conversion? 
 A. AM
 B. PM
 C. FM
 D. QAM
Ans:-D

17) Which organisation draws up standards for modems? 
 A. CCITT
 B. BELL
 C. AT and T
 D. Hayes
Ans:-A

18) Which one of the following is not a class of LAN? 
 A. Broad band
 B. CSMA/CD
 C. Token ring
 D. Token bus
Ans:-A

19) To avoid transmission error a check figure is calculated by the 
 A. Receiving computer
 B. Transmitting Computer 
 C. Both (a) and (b)
 D. None of Above
Ans:-C

20) .......uses two carriers one in phase and the other quadrature? 
 A. ASK
 B. PSK
 C. FSK
 D. QAM
Ans:-D