". VdoTips: Networking Multiple Choice Questions and Answers 68

Networking Multiple Choice Questions and Answers 68

336. Most governments have set aside some frequency bands called the _______ bands for unlicensed usage.
(A)IFS
(B)ISM
(C)IRS
(D)IVS

337. The downward beams of a satellite can be broad , covering a substantial fraction of the earth's surface or narrow, covering an area only hundreds of kilometers in diameter. This mode of operation is known as a
(A)bent pipe.
(B)foot print.
(C)uplink.
(D)downlink.

338. The first geostationary satellite had a single spatial beam that illuminated about 1/3 of the earth's surface called its _______
(A)bent pipe.
(B)downlink.
(C)foot print.
(D)uplink.

339. Each end office has a number of outgoing lines to one or more nearby switching canters called ______
(A)toll connecting trunks.
(B)toll office.
(C)local loop.
(D)end office.

340. __________ is the loss of energy as the signal propagates outward.
(A)Attenuation.
(B)Distortion.
(C)Noise.
(D)Baud.