You have established connectivity to a factory default C-160 through the CLI, What command will allow you to change an interfaces speed and duplex?

Question

Options

• Aifconfig
• Binterfaceconfig
• Cetherconfig
• Dmediaccnfig

• A
  4% (2)
• B
  2% (1)
• C
  89% (47)
• D
  6% (3)

Explanation

etherconfig is the correct CLI command on the Cisco C-160 (an Email Security Appliance running AsyncOS) specifically designed to configure physical Ethernet settings, including interface speed (10/100/1000 Mbps) and duplex (half/full/auto).

Why the distractors are wrong:

• A. ifconfig - a standard Linux/Unix command for viewing and configuring network interfaces, but it is not available or used in the AsyncOS CLI environment of the C-160.
• B. interfaceconfig - a valid AsyncOS command, but it handles logical interface settings like IP addresses and hostnames, not physical layer speed/duplex negotiation.
• D. mediaconfig - not a real AsyncOS command; it is a plausible-sounding distractor playing on networking terminology ("media" as in transmission medium).

Memory tip: Think "etherconfig controls Ethernet physical properties" - speed and duplex are Layer 1/2 Ethernet characteristics, so the command name containing "ether" is your signal that it operates at that physical/data-link level. If the question involves IP addressing, think interfaceconfig; if it involves wire-level settings, think etherconfig.

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