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16.

17.

18.

19.

20.

Satellites used for telecommunication relay are kept in geostationary orbit. A satellite is
said to be in such an orbit when

1. The orbit is geosynchronous.
Il. The orbit is circular.
Ill. The orbit lies in the plane of the Earth’s equator.
IV. The orbit is at an altitude of 22236 km.
A) |, ॥ and Ill
©) ॥ and IV

8) I, Ill and IV
D) All of the above

Consider the data transfer using TCP over a 1 Gbps link. Assuming that the Maximum
Segment Lifetime (IMSL) is set to 60 seconds, the minimum number of bits required for
the sequence number field of the TCP header, to prevent the sequence number space
from wrapping around during the MSL is

A) 30
060

The message (2൧), is to be transmitted using the CRC polynomial x3 +x + 1. Find the

message that shoul
A) ೦2೦
C) A1D

Define the type of tl

५ be transmitted in hexadecimal.
B) 52D
D) 36D

he following destination addresses :
: 30 4%

: 660

: Broadcast

॥ : Broadcast

Il: Unicast

1. 4A: 30 : 10 : 20
Il. 47 : 20 : 25 : 38
A) |: Unicast and |
8) ١ : Multicast and
C) ١ : Multicast and
D) |: Unicast and |

Consider the follow

: Multicast

ing statements :

Statement 1 : Checksum field is present in both TCP header and UDP header.

Statement 2 : Size
A) Only Statement
B) Only Statement
0)

D) Both Statement

of source port in 8 TCP header is 16 bytes.
1 is true
2 is true

Statement 1 and 2 are true

1 and 2 are false