ICND1 Routing Technologies & Protocols 3 — Questions and Answers
Question 1: Which EIGRP metric components are used by default?
- Bandwidth and delay (Correct answer)
- Bandwidth, delay, load, and reliability
- Hop count and bandwidth
- Delay and MTU
Correct answer: Bandwidth and delay
By default, EIGRP uses only bandwidth and delay (K1 and K3) in its composite metric calculation.
Question 2: What is the maximum hop count supported by RIPv2?
- 15 (Correct answer)
- 16
- 255
- 100
Correct answer: 15
RIPv2 supports a maximum hop count of 15; a hop count of 16 is considered unreachable.
Question 3: Which command verifies the OSPF neighbor state on a Cisco router?
- show ip route ospf
- show ospf database
- show ip ospf neighbor (Correct answer)
- show ip protocols
Correct answer: show ip ospf neighbor
The 'show ip ospf neighbor' command displays OSPF neighbor relationships and their current state.
Question 4: In OSPF, which router is elected as the Designated Router (DR) on a multi-access segment?
- The router with the highest router-ID and priority greater than 0 (Correct answer)
- The router with the lowest IP address
- The router with the most routes in its routing table
- The first router to boot on the segment
Correct answer: The router with the highest router-ID and priority greater than 0
The DR is elected based on the highest OSPF priority, with the router-ID as a tiebreaker; a priority of 0 disqualifies a router.
Question 5: A network administrator adds 'passive-interface GigabitEthernet0/1' under RIP. What is the effect?
- RIP updates are sent but not received on Gi0/1
- RIP updates are neither sent nor received on Gi0/1
- RIP updates are received but not sent on Gi0/1 (Correct answer)
- The interface is removed from RIP routing entirely
Correct answer: RIP updates are received but not sent on Gi0/1
A passive interface suppresses RIP update transmission but still processes received updates and advertises the connected network.
Question 6: What type of routing protocol is OSPF classified as?
- Distance-vector
- Path-vector
- Link-state (Correct answer)
- Hybrid
Correct answer: Link-state
OSPF is a link-state routing protocol that builds a complete topology map using LSAs flooded throughout the area.
Question 7: Which command displays the contents of the EIGRP topology table?
- show ip route eigrp
- show ip eigrp topology (Correct answer)
- show eigrp database
- show ip eigrp neighbors
Correct answer: show ip eigrp topology
The 'show ip eigrp topology' command shows all EIGRP routes including successors and feasible successors.
ICND1 Routing Technologies & Protocols 3
Which EIGRP metric components are used by default?