200-901 Infrastructure and Automation Practice Question
Exhibit
Refer to the exhibit. Router# show ip interface brief Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 192.168.1.1 YES NVRAM up up GigabitEthernet0/1 unassigned YES unset administratively down down GigabitEthernet0/2 10.10.10.1 YES manual up up
Based on the exhibit, which interface is in a state that prevents it from sending or receiving IP traffic?
⚠ Common exam trap
Cisco often tests the distinction between 'administratively down' (Status: down) and 'up/down' (Status: up, Protocol: down), where candidates mistakenly assume any 'down' protocol means no IP traffic is possible, but only the administratively down state explicitly prevents all traffic due to manual shutdown.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
GigabitEthernet0/1
Interface GigabitEthernet0/1 is in the 'administratively down' state, as indicated by the 'down' status in the 'Status' column and the 'down' in the 'Protocol' column. This means the interface has been manually disabled with the 'shutdown' command, preventing it from sending or receiving any IP traffic. In contrast, interfaces that are 'up/up' can forward traffic, while 'up/down' indicates a Layer 1 issue but still allows Layer 2 control plane traffic.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
GigabitEthernet0/2
Why it's wrong here
It is up/up.
- ✗
GigabitEthernet0/0
Why it's wrong here
It is up/up.
- ✓
GigabitEthernet0/1
Why this is correct
It is administratively down, so no traffic can pass.
- ✗
None of the interfaces are down
Why it's wrong here
GigabitEthernet0/1 is down.
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