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Space Division Switching in Intelligent Networks - Chapter 3

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Space Division Switching in Intelligent Networks - Chapter 3

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Questions and Answers

What type of switching is space division switching?

Electronic automatic switching (correct)

Analog switching

Manual switching

Digital switching

When was the first computer controlled switching system installed by the Bell system?

1985

1965 (correct)

1955

1975

What technology is used for telephone exchanges controlled by a computer program stored in the memory of the switching systems?

Switching Control Program (SCP)

Digital technology

Analog technology

Stored Program Control (SPC) (correct)

Which element is used for the control functions in electronic switches that eliminate drawbacks in earlier exchanges?

Microprocessor Signup and view all the answers

What advantages are provided to end users by Stored Program Control (SPC)?

Abbreviated dialing, call forwarding, call waiting Signup and view all the answers

Which type of networks was space division switching originally designed for?

Analog networks Signup and view all the answers

What is the main function of a centralized SPC in a switching system?

To perform exchange functions using a common processor Signup and view all the answers

What distinguishes centralized SPC from distributed SPC?

Centralized SPC has all control equipment replaced by processors Signup and view all the answers

What is the purpose of using dual processors in centralized SPC exchanges?

For high reliability Signup and view all the answers

Which mode of operation in a centralized SPC uses a secondary storage common to both processors?

Standby mode Signup and view all the answers

What is the primary role of the active processor in standby mode?

Copy system status periodically to secondary storage Signup and view all the answers

In centralized SPC, what is stored in the memory of a computer to execute automatically by the processor?

Programs related to control functions and subscriber information Signup and view all the answers