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Which command specifies a second sub interface on serial interface 0?
A.Interface s0.2
B.Interface 2s0
C.Subinterface 2s 0
D.Interface s0 sub2
E.Interface s0.1
Answer: A
Explanation: The proper syntax for configuring a second subinterface is interface 0.2
Incorrect Answers:
B is incorrect; remember that the syntax is suppose to be number.subinterface number and that there is suppose to be two hyphens in point
C is incorrect; the command is interface not subinterface.
D is incorrect; the two numbers are broken by a period and not the word sub.
E is incorrect; this is not the proper syntax. Remember the interface and subinterface are identified by number.subintreface number.
Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages
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