Download AKTU B-Tech 8th Sem 2014-15 EEC 802 Electronics Switching Question Paper

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EEC802

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(Following Paper ID and Roll No. to be filled in your Answer Book)

PAPER ID: 131802

Roll No.

B. Tech.

(SEM. VIII) THEORY EXAMINATION, 2014-15

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ELECTRONICS SWITCHING

Time: 3 Hours]                                                                                      [Total Marks: 100

1. Attempt any four parts :                                                                                                                                                          5×4-20

   1. Explain and draw general trunking diagram.

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   2. Explain how packet switching is better than circuit switching for data communication system.

   3. Explain Reed electronic switch with support of diagram.

   4. Explain one motion and two motion selector.

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   5. Explain register translator sender system.

2. Attempt any four parts :                                                                                                                                                          5×4-20

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   1. Write down the difference between single stage and multistage network.

   2. Briefly describe digital time division switching. Differentiate it with analog time division switching

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3. 1. Define pure birth process and derive the expression for the probability of K arrival. On average, one call arrives every 5 sec. During a period of 10 sec, calculate the probability that:

      1. No call arrives.

      2. One call arrives.

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      3. Two call arrive.

      4. more than two call arrives.

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   2. Derive and explain erlang B formula and compare it with erlang C formula.

   3. Derive an equation of grade of service and blocking probability of lost call cleared service.

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4. Attempt any two parts:                                                                                                                                                          10×2=20

   1. Explain common channel signalling with SS7 architecture. Compare common channel signalling with in channel.

   2. Explain the sequence of operation in call processing function.

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   3. What do you understand by system software of SPC software.

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