Iibm - Telecommunications Essential

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Telecommunications Essential

Multiple Choices:

1. This band transmits uplink around the 6GHz range & downlink around the 4GHz range.

a. C-Band

b. Ku-Band

c. Ka-Band

d. L-Band

2. On these trunks, traffic flows in both the incoming & outgoing directions.

a. DOD trunks

b. DID trunks

c. Two-way local exchange trunks

d. None

3. As networks become more digitized, fewer conversions take place, and voice can be carried at a higher quality over fewer flower bits per second.

a. PCM

b. ADPCM

c. DCSs

d. DLCs

4. _____________ is a standard for storage & retrieval of moving pictures & audio on storage media.

a. MPEG-1

b. MPEG-2

c. MPEG-4

d. MPEG-7

5. It is an open standard for digital video transmission over cable that was defined by ETSI & ratified in 1994.

a. DVB-H

b. DVB-T

c. DVB-C

d. DVB-S & DVB-S2

6. It is the oldest of DSL technologies & a symmetrical service, measuring that it provides equal bandwidth in the both directions.

a. HDSL

b. SDSL

c. G. SHDSL

d. ADSL

7. It is the newest spread spectrum technique, and its main purpose is to resolve the problems

a. CDMA

b. TDMA

c. OFDM

d. ADPCM

8. It is a new concept in multimedia mobile broadcasting service, converging broadcasting and telecommunications.

a. DMB

b. OFDM

c. VF

d. None

9. It is a Niche broadband wireless technology that at first appears to complete for market share with mobile WiMax & Mobile-Fi.

a. HiperAccess

b. HiperMan

c. iBursrt

d. ETSI BRAN

10. In-FUSIO‟s (www. Infusion.com) __________ is best known for its business model, which supports a variety of revenue models, including pay-per-level and SMS high scores.

a. JavaME

b. BREW

c. EXEn

d. Mophun

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