41,

42,

43.

47.

49.

51.

114/2016

The most populartechnology in time-division switching is called the

A) TSI B) STI ೧3

D) None of the above

Which multiplexing technique involves signals composed of light beams ?

because

ಹಿ) They produce large volume of data

B) They operate with a larger bandwidtn

C) They transmit the data with stop and start bits
D) They contain clock recovery circuits

What is data encryption standard ?
A) Blockcipher B) Streamcipher 0) 81010೧6

. Which of the malicious program do not replicate automatically ?

A) Worm B) Trapdoors C) Logic bomb

In which OS! layer, bits are converted to frames ?

A) Presentation layer B) Data link layer

C) Transport layer D) Network layer
. Afirewall protect

A) Viruses

B) Fire

C) Worms

D) Unauthenticated interactive logins from outside world

o

A) WDM B) FDM C) TDM D) None of the above
Which of the following primarily uses guided media ?
A) Radio broadcasting B) Satellite communications
C) Local telephone system D) Cellular telephone system
. When 8 beam of light travels through media of two different densities, ifthe angle
of incidence is greater than the critical angle, 0661115.
A) Refraction B) Reflection C) Criticism D) Incidence
. In IP networking, network and Host address are separated using
A) ARP B) Separator C) Netmask D) TCP
. In a router, what is the name of the structure that tells where to deliver IP packet ?
A) Routing address 5) ೧0೮07618016
C) Delivery table D) Statustable
What is the nominal bit rate of fast Ethernet ?
A) 10MB/s B) 100 MB/s C) 10GB/s D) 1000 MB/s

. The synchronous modems are more costly than the asynchronous modems

D) None of the above

D) Trojan ೧೦56