Computer Networks

181. By the end of ____________ , the Open System Interconnection model was developed by the International Organization for Standardization to break the barrier

1. 1980
2. 1970
3. 1990
4. 1960

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182. CAD means

1. Computer aided distribution
2. Computer application design
3. Computer aided design
4. None of these

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183. Call forwarding is a ____________

1. Telephony or teleservices
2. Data or bearer services
3. Supplementary services
4. All of these

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184. CCITT stands for

1. Consultative Committee International for Telegraphy and Telephony
2. International Consultative Committee for Telegraphy and Telephony
3. International Consultative Committee for Telephony and Telegraphy
4. Consultative Committee International for Telephony and Telegraphy

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185. Cell relay is data transmission services that uses transmission technology referred to as

1. ATM(Asynchronous Transfer Mode)
2. BTM
3. STM
4. DTM

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186. Cell site is defined as the location where ____________ are placed

1. Base station
2. Antennas
3. Both a & b
4. None of these

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187. Cells are the basic constituents of a cellular layouts with ____________

1. Cell sites
2. Cell systems
3. Cell forwarding
4. None of these

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188. CEPT after ten years of launch of T1 system used ____________ for framing known as European E1

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

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189. CEPT means

1. Conference European of Postal Telecommunications
2. European Conference of Postal and Telecommunications
3. European Control of Postal Telecommunications
4. None of these

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190. CEPT revised and improved the technology adopted by

1. T-carrier system
2. E-carrier system
3. Both a & b
4. None of these

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