Which two fields are present in the output of the show ip interface brief command? (Choose two.)

A. YES?
B. Helper address

C. OK?

D. Method

E. Proxy ARP

Explanation:

Sample output of the show ip interface brief command is as follows:

Router# show ip interface brief
Interface IP-Address OK? Method Status Protocol
Ethernet0 10.108.00.5 YES NVRAM up up
Ethernet1 unassigned YES unset administratively down down
Loopback0 10.108.200.5 YES NVRAM up up
Serial0 10.108.100.5 YES NVRAM up up
Serial1 10.108.40.5 YES NVRAM up up
Serial2 10.108.100.5 YES manual up up
Serial3 unassigned YES unset administratively down down

The following fields are present in the output of the show ip interface brief command:

OK?: If the value of this field is “yes”, it represents that the IP address is valid. If the value of this field is “No”, it represents an invalid IP address.
Method: This field can have one of the following values:
● RARP or SLARP: Reverse Address Resolution Protocol (RARP) or Serial Line Address Resolution Protocol (SLARP) request
● BOOTP: Bootstrap protocol
● TFTP: Configuration file obtained from TFTP server
● Manual: Manually changed by CLI command
● NVRAM: Configuration file in NVRAM
● IPCP: ip address negotiated command
● DHCP: ip address dhcp command
● unassigned: No IP address
● unset: Unset
● other: Unknown
● Interface: Refers to the type of interface.
● IP-Address: Refers to the IP address assigned to the interface.

Status: Displays the interface status. Possible values in this field are as follows:
● up: Interface is administratively up.
● down: Interface is down.
● administratively down: Interface is administratively down.

Protocol: An indicator of the operational status of the routing protocol for this interface.

YES? is not a valid field in the output of the show ip interface brief command.

Helper address and Proxy ARP fields are present in the output of the show ip interface command, not the show ip interface brief command.

Objective:
Network Fundamentals
Sub-Objective:
Configure, verify, and troubleshoot IPv4 addressing and subnetting

References:
Cisco > Cisco IOS IP Addressing Command Reference > show ip interface