200-301 Question #152: Real Exam Question with Answer & Explanation

Question

Which Cisco IOS command will indicate that interface GigabitEthernet 0/0 is configured via DHCP?

Options

• Ashow ip interface GigabitEthernet 0/0 dhcp
• Bshow interface GigabitEthernet 0/0
• Cshow ip interface dhcp
• Dshow ip interface GigabitEthernet 0/0
• Eshow ip interface GigabitEthernet 0/0 brief

Explanation

The show ip interface <interface_id> command displays detailed IP information for a specific interface, including whether its IP address was obtained via DHCP.

Common mistakes.

• A. There is no standard Cisco IOS command syntax show ip interface <interface_id> dhcp; dhcp is not a valid keyword in this context.
• B. The show interface GigabitEthernet 0/0 command displays Layer 2 and physical interface status but does not typically include the IP address acquisition method (DHCP vs. static).
• C. The show ip interface dhcp command is not a valid Cisco IOS command; dhcp is not a recognized keyword after show ip interface.
• E. The show ip interface GigabitEthernet 0/0 brief command provides a concise summary of the interface's IP address and status but typically does not detail the method of IP address assignment.

Concept tested. Verifying interface IP configuration method (DHCP)

Reference. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_cfg/command/ipaddr-cr-book/ipaddr-cr-s3.html#wp4007624953

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