hardMultiple ChoiceObjective-mapped

200-901 Practice Question: Refer to the exhibit

Exhibit

Refer to the exhibit.
```
Router# show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is 10.0.0.1 to network 0.0.0.0

     10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C       10.0.0.0/30 is directly connected, GigabitEthernet0/0
L       10.0.0.2/32 is directly connected, GigabitEthernet0/0
     192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.1.0/24 is directly connected, GigabitEthernet0/1
L       192.168.1.1/32 is directly connected, GigabitEthernet0/1
S*   0.0.0.0/0 [1/0] via 10.0.0.1
```

Refer to the exhibit. A router has the routing table shown. A packet arrives at GigabitEthernet0/0 with destination IP 8.8.8.8. What will the router do?

⚠ Common exam trap

Many candidates assume a public IP like 8.8.8.8 must be routed via a specific interface or that a missing explicit route means the packet is dropped, but the presence of a default route (0.0.0.0/0) means the router will forward the packet to the configured next-hop.

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

✓

Forward the packet out GigabitEthernet0/0 via 10.0.0.1.

The routing table shows a default route (0.0.0.0/0) pointing to next-hop 10.0.0.1 via GigabitEthernet0/0. Since destination 8.8.8.8 does not match any more specific prefix, the router uses this default route and forwards the packet out GigabitEthernet0/0 to 10.0.0.1. Option E correctly describes this behavior.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Look up the destination in the ARP cache and then forward.
Why it's wrong here
It first does routing lookup; ARP is for local delivery.
✗
Send an ICMP unreachable message back to the source.
Why it's wrong here
Since a default route exists, it will forward, not send unreachable.
✗
Forward the packet out GigabitEthernet0/1 to the default gateway.
Why it's wrong here
The default route points out GigabitEthernet0/0 via 10.0.0.1.
✗
Drop the packet because there is no route to 8.8.8.8.
Why it's wrong here
The default route exists, so it will not be dropped.
✓
Forward the packet out GigabitEthernet0/0 via 10.0.0.1.
Why this is correct
The default route is used, and the next hop is 10.0.0.1 out Gi0/0.

Go deeper

200-901 Practice Question: Refer to the exhibit

Exhibit

Why each option matters

Option-by-option breakdown

Related to this question