Drag steps to the numbered slots on the right, or tap a step then tap a slot.
Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4
5Step 5
CCNA IP Routing Practice Question
Drag and drop the following steps into the correct order to configure and verify OSPFv3 neighbor adjacency using link-local addresses in area 0.
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
✓
Enable IPv6 unicast routing with the 'ipv6 unicast-routing' global command.
The correct order enables IPv6 unicast routing globally, creates the OSPFv3 process, enters interface configuration, assigns the interface to the OSPFv3 process in area 0 (which activates OSPFv3 on the link), and finally verifies the neighbor relationship. IPv6 unicast routing must be enabled first because OSPFv3 requires IPv6 packet forwarding. The router process must exist before an interface can be associated with it. Assigning the interface to area 0 triggers Hello packet exchange over link-local addresses. The show command confirms the adjacency formed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enable IPv6 unicast routing with the 'ipv6 unicast-routing' global command.
Why this is correct
Enable IPv6 unicast routing with the 'ipv6 unicast-routing' global command. This command is mandatory because OSPFv3 carries its Hello, LSU, and LSA information inside IPv6 packets. Without IPv6 forwarding enabled globally, the router will not route or even process IPv6 protocol traffic, so OSPFv3 neighbors will never exchange packets and no adjacency will form. It is the foundational prerequisite for any IPv6 routing protocol on a Cisco router.
- ✓
Create an OSPFv3 routing process using 'ipv6 router ospf 1'.
Why this is correct
Create an OSPFv3 routing process using 'ipv6 router ospf 1'. This command enters OSPFv3 router configuration mode and creates the routing process that will handle all OSPFv3 operations on the router. Here you set the router ID, which is essential because OSPFv3 cannot derive a 32-bit Router ID from an IPv6 address, and you also configure any area-based or interface-based parameters. Without this process, subsequent interface-level commands like 'ipv6 ospf 1 area 0' have no context to attach to.
- ✓
Enter interface configuration mode with 'interface gigabitethernet0/0'.
Why this is correct
Enter interface configuration mode with 'interface gigabitethernet0/0'. This command navigates to the interface that will carry OSPFv3 traffic and is the necessary context for issuing interface-specific OSPFv3 commands. OSPFv3 is configured on a per-interface basis, unlike OSPFv2 where you use network statements in router config mode. Without entering this mode, you cannot enable OSPFv3 on the link or adjust parameters like timers, cost, or authentication on that interface.
- ✓
Assign the interface to OSPFv3 process 1 area 0 using 'ipv6 ospf 1 area 0'.
Why this is correct
Assign the interface to OSPFv3 process 1 area 0 using 'ipv6 ospf 1 area 0'. This command activates OSPFv3 on the interface by binding it to a specific process and area, triggering the transmission of OSPFv3 Hello packets out of the interface. The area identifier (0) designates the backbone area, which is required for inter-area routing in OSPF. If the router ID is not manually set, this command will also force the router to select a Router ID, and without this interface assignment, OSPFv3 will not operate on that link at all.
- ✓
Verify the adjacency by displaying OSPFv3 neighbors with 'show ipv6 ospf neighbor'.
Why this is correct
Verify the adjacency by displaying OSPFv3 neighbors with 'show ipv6 ospf neighbor'. This command provides a real-time view of the OSPFv3 neighbor table, including neighbor state, IP address, interface, and dead timer. A state of FULL indicates that the OSPFv3 routers have successfully formed an adjacency and are exchanging routing information. It is the definitive verification that all prior configuration steps were executed correctly and that the OSPFv3 process is active on the link.
Quick reference
Routing Protocol Comparison
| Protocol | Metric | Max Hops | Algorithm | Type |
|---|---|---|---|---|
| RIP v2 | Hop count | 15 | Bellman-Ford | Distance vector |
| OSPF | Cost (bandwidth) | Unlimited | Dijkstra (SPF) | Link state |
| EIGRP | Composite metric | Unlimited | DUAL | Hybrid |
| IS-IS | Cost | Unlimited | Dijkstra | Link state |
| BGP | Policy / attributes | Unlimited | Path vector | Path vector |
RIP's 15-hop limit makes it unsuitable for large networks. OSPF and EIGRP dominate modern enterprise deployments.
Go deeper
Related to this question
Learn chapter
OSPFv3 Single-Area Configuration for IPv6
Key term
Hello packet
A Hello packet is a small OSPF message sent by routers to discover neighboring routers, establish and maintain neighbor relationships, and elect a Designated Router on multiaccess networks.
Key term
Interface
An interface is a point of connection or interaction between two systems, devices, or software components that allows them to exchange information or signals.
About these practice questions
Courseiva writes every 200-301 question from scratch — 1,389 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-301 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 200-301 exam.