640 - 607

Incorrect Answers:

A is incorrect; increasing the idle time parameter will only result in increasing the idle time. C is incorrect; rebooting the router will only result in the router going through its post.

D is incorrect; this action will not confirm whether a DDR has connectivity or not.

Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 397-407.

Q.56

Which element is used to define the rate, in bits per second, that a Frame Relay switch agrees to transfer data?

A.Clock rate (CR).

B.Committed Information Rate (CIR)

C.Local management interface (LMI)

D.Data-link connection identifier (DLCI)

E.Committed Rate Measurement Interval (CRMI)

Answer: B

Explanation: CIR is the rate, in bits per second, at which the service provider states that data will be transfered.

Incorrect Answers:

A is incorrect; clock rate is the transmission medium speed, which is determined by modem clocking.

C is incorrect; LMI is a signaling standard between the router device and the Frame Rekay switch that is responsible for managing the connection and maintaining the status between the devices.

D is incorrect; DLCI is addressing used to identify virtual circuits.

E is incorrect; this is the sampling period used in controlling CIR, but is not the rate itself.

Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 413-414.

Q. 57

Which term describes the process in which frames from one network system are placed inside the frames of another network system?

A.bridging

B.tunneling

C.data-link control

D.generic routing

E.packet switching

Answer: B

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Cisco Systems 2 manual Answer B