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200-901 Practice Question: Based on the routing table, what is 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, H - NHRP, l - LISP
       a - application route
       + - replicated route, % - next hop override

Gateway of last resort is 10.0.0.2 to network 0.0.0.0

      10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        10.0.0.0/24 is directly connected, GigabitEthernet0/0
L        10.0.0.1/32 is directly connected, GigabitEthernet0/0
      192.168.1.0/24 [120/1] via 10.0.0.2, 00:00:23, GigabitEthernet0/0
S*      0.0.0.0/0 [1/0] via 10.0.0.2

Based on the routing table, what is the administrative distance of the route to 192.168.1.0/24?

⚠ Common exam trap

Cisco often tests the default administrative distance values for common routing protocols (RIP=120, OSPF=110, EIGRP=90/170, static=1, connected=0), and the trap here is that candidates confuse the AD of RIP with that of OSPF or EIGRP, or mistakenly think a route with AD 120 is from a protocol like BGP (which uses 20 for eBGP).

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

✓

120

The administrative distance (AD) for a route learned via EIGRP (internal) is 90, but for EIGRP external routes it is 170. However, the route to 192.168.1.0/24 in the routing table shows an AD of 120, which is the default AD for RIP (Routing Information Protocol). Since the question states the AD is 120, the correct answer is C.

Answer analysis

Option-by-option breakdown

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

✗
10
Why it's wrong here
10 is a common administrative distance for OSPF or other protocols, not applicable here.
✗
0
Why it's wrong here
0 is the administrative distance for connected routes, but this is a RIP route.
✓
120
Why this is correct
120 is the administrative distance, indicating a RIP route.
✗
1
Why it's wrong here
1 is the metric, not the administrative distance.

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200-901 Practice Question: Based on the routing table, what is the…

Exhibit

Why each option matters

Option-by-option breakdown

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