Computer Networks

231. Due to four transitions the maximum fundamental frequency requirement is reduced to

1. One-fourth of the baud rate
2. One-third of the baud rate
3. One-half of the baud rate
4. None of these

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232. During communication, a channel that is noisy may causes

1. Loss of bits from a frame
2. Flips of bits
3. Complete disappearance of frames
4. Introduction of new bits in the frame
5. All of these

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233. E1 is different from earlier T-carrier systems since all ____________ of every sampling are available for every call

1. 4bits
2. 8bits
3. 16bits
4. 32bits

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234. E1 signifies another carrier system that finds use outside

1. North America
2. Japan
3. South Korea
4. All of these

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235. Each cable is connected to a Ethernet cable through a

1. Repeater
2. Transceiver
3. Segments
4. Groups

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236. Each channel in BRA is referred to as

1. A-channel
2. B-channel
3. C-channel
4. F-channel

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237. Each domain is also called

1. Operation domain
2. Backbone
3. Inter-domain
4. All of these

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238. Each logical channel group is divided into ____________ logical channels

1. 256
2. 16
3. 4096
4. 2556

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239. EBCDIC is a coding system that uses

1. 8 bit
2. 4 bit
3. 16 bit
4. 32 bit

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240. EIR fulfills the ____________ requirement of GSM

1. Security
2. Authentication
3. Both a & b
4. None of these

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