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Networking · Q14

Wide Area Networks

Programming · Networking · question 14

Q14

When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the clock rate determined?

A.
Supplied by the CSU/DSU
Answer
B.
By the far end router
C.
By the clock rate command
D.
By the Physical layer bit stream timing

Answer: Option A

Solution

Answer: Option A
Solution:
Clocking on a serial interface is always provided by the CSU/DSU (DCE device). However, if you do not have a CSU/DSU in your nonproduction test environment, then you need to supply clocking with the clock rate command on the serial interface of the router with the DCE cable attached.