1201. The state when dedicated signals are idle are called :

A. Death period
B. Poison period
C. Silent period *
D. None of the mentioned

1202. Multiplexing can provide :

A. Efficiency
B. Privacy
C. Anti Jamming
D. Both A and B *

1203. The multiplexed path’s transmission rate is typically equal to the sum of the signal sources’ transmission rates in TDM:

A. Greater than *
B. Lesser than
C. Equal to
D. Equal to greater than

1204. in TDM, slots are further divided into :

A. Seconds
B. Frames *
C. Packets
D. None of the mentioned

1205. Multiplexing technique that shifts each signal to a different carrier frequency :

A. FDM *
B. TDM
C. Either A or B
D. Both A and B

1206. Physical or logical arrangement of network is :

A. Topology *
B. Routing
C. Networking
D. None of the mentioned

1207. In this topology there is a central controller or hub :

A. Star *
B. Mesh
C. Ring
D. Bus

1208. This topology requires multipoint connection:

A. Star
B. Mesh
C. Ring
D. Bus *

1209. Data communication system spanning states, countries , or the whole world is :

A. LAN *
B. WAN
C. MAN
D. None of the mentioned

1210. The data communication system on a campus or building is:

A. LAN *
B. WAN
C. MAN
D. None of the mentioned