Exam MTCNA Topic 4 Question 83 Discussion

In Cisco IOS, the clock rate command is used on the DCE (Data Communications Equipment) end of a serial link to provide timing to the connected DTE (Data Terminal Equipment) device. To configure a 64 kbps link, the correct syntax is:
RouterA(config-if)#clock rate 64000
Cisco IOS Configuration Guide - Serial Interfaces:
"When the router acts as DCE, use the command clock rate [bps] under the serial interface to set the speed.
For 64kbps, use 64000."
Rene Meneses MTCNA Guide - WAN Configuration (Cisco Compatibility):
"Use clock rate 64000 for CSU/DSU simulation. Bandwidth command is for routing metrics only." Option analysis:
* A: bandwidth 64 # Sets routing metric, not actual interface speed
* B: bandwidth 64000 # Same; metric only
* C: clock rate 64 # Incorrect value
* D:#Correct and syntactically valid
Final answer: D############################################################