How many IPv6 Configuration Scenarios questions are on this page?

This page has 9 IPv6 Configuration Scenarios scenario questions for the 350-501 exam, each with detailed explanations and wrong-answer analysis.

How should I approach 350-501 scenario questions?

Read the full scenario before looking at the answer options. Identify the constraint or requirement in the scenario, then eliminate options that are generally true but wrong for this specific case. Scenario questions reward careful reading over pattern matching.

← Back to Cisco SPCOR / CCNP Service Provider Core 350-501 questions

Scenario-based practice

IPv6 Configuration Scenarios

Practise Cisco SPCOR / CCNP Service Provider Core 350-501 practice questions — original exam-style scenarios covering every exam domain, with detailed explanations, wrong-answer analysis, and common exam traps.

Start full practice test Read exam guide

scenario questions

350-501

exam code

Cisco

vendor

Scenario guide

How to approach ipv6 configuration scenarios

IPv6 questions test address types (global unicast, link-local, multicast, anycast), address assignment (SLAAC, DHCPv6, EUI-64), OSPFv3, and dual-stack. The CCNA often presents an IPv6 address and asks you to identify the prefix, type, or calculate the EUI-64 interface ID.

Quick answer

IPv6 questions usually test address types (link-local, global unicast, ULA), autoconfiguration (SLAAC), Neighbor Discovery Protocol and the differences from IPv4.

IPv6 address types and their scopes (link-local, global unicast, multicast, ULA).

SLAAC vs DHCPv6 vs stateful assignment.

Neighbor Discovery Protocol replacing ARP.

IPv6 routing differences and dual-stack coexistence.

Practice scenarios

Question 1hardmultiple choice

Review the full OSPF breakdown →

A network engineer is troubleshooting OSPFv3 on a service provider's IPv6 network. The router shows that OSPFv3 adjacency never reaches FULL, says 'Init'. The neighbor is directly connected over a point-to-point link. What is the most likely cause?

A
LSA throttling prevents exchanges
Why wrong: LSA throttling controls LSA generation, not adjacency formation.
B
Mismatched OSPF router-id
Why wrong: Mismatched router-id leads to adjacency failure in ExStart state.
C
Mismatched area IDs
Why wrong: Area ID mismatch causes adjacency to stall in ExStart/Exchange.
D
Missing 'ipv6 ospf' interface command on one side
OSPFv3 requires explicit interface configuration to activate adjacency.

Full breakdown with real-world context →

Question 2hardmultiple choice

Study the full IPv6 explanation →

A service provider is implementing Segment Routing over IPv6 (SRv6) in their core. They want to provide path isolation for different services using SRv6 SIDs. Which SID structure is used to encode both the locator and the function?

A
The SID is divided into locator and function (and optionally arguments).
SRv6 SID is structured as Locator:Function:Args.
B
The SID uses a separate label stack for function encoding.
Why wrong: SRv6 does not use labels; it uses the IPv6 header directly.
C
The SID is an IPv6 address without any encoding.
Why wrong: The IPv6 address is used, but it encodes locator and function.
D
The SID consists of a prefix only.
Why wrong: The prefix is the locator, but the full SID includes locator and function.

Full breakdown with real-world context →

Question 3hardmultiple choice

Study the full IPv6 explanation →

In Segment Routing over IPv6 (SRv6), what is the function of the SRH (Segment Routing Header)?

A
It replaces the IPv6 header to reduce overhead
Why wrong: SRH is an extension header, not a replacement.
B
It contains the segment list (ordered list of SIDs)
SRH contains a list of SIDs that define the forwarding path.
C
It provides OAM capabilities for path monitoring
Why wrong: OAM can be carried but SRH's primary function is to list SIDs.
D
It uses the IPv6 flow label to encode the path
Why wrong: Flow label is used for load balancing, not segment list.

Full breakdown with real-world context →

Question 4easymultiple choice

Open the full BGP breakdown →

A service provider is designing its core network to carry both IPv4 and IPv6 traffic. Which BGP approach best minimizes routing table size on core routers while maintaining full reachability?

A
Use iBGP with route reflectors
Reduces BGP sessions and maintains full reachability efficiently.
B
Use eBGP between all core routers
Why wrong: eBGP full mesh creates high session count and administrative overhead.
C
Use static routing for all prefixes
Why wrong: Static routing does not scale for full internet routing tables.
D
Rely on OSPF for external routes
Why wrong: OSPF is an IGP and not designed to carry external BGP routes.

Full breakdown with real-world context →

Question 5hardmultiple choice

Read the full MPLS explanation →

A service provider is implementing IPv6 transition in its core. Which transition mechanism is recommended for carrying IPv6 over an existing MPLS/IPv4 backbone without dual-stacking all routers?

A
ISATAP
Why wrong: ISATAP is for site-level tunneling, not backbone.
B
NAT64
Why wrong: NAT64 translates IPv6 to IPv4, not a backbone transition.
C
6to4 tunneling
Why wrong: 6to4 requires configured tunnels and public IPv4 addresses.
D
6PE (IPv6 Provider Edge)
6PE uses MPLS labels; only PEs need dual-stack.

Full breakdown with real-world context →

Question 6easymulti select

Study the full IPv6 explanation →

Which THREE are valid reasons for using the 'ipv6 unicast-routing' command on a Cisco router?

A
It enables IPv6 on all interfaces.
Why wrong: Incorrect. Interface IPv6 is enabled separately.
B
It enables global IPv6 routing.
Correct. This is the primary purpose.
C
It enables IPv6 CEF.
Correct. CEF is enabled automatically for IPv6 when unicast routing is on.
D
It enables IPv6 multicast routing.
Why wrong: Incorrect. Multicast routing is enabled with separate commands.
E
It allows configuration of IPv6 routing protocols like OSPFv3.
Correct. Routing protocols require unicast routing to be enabled.

Full breakdown with real-world context →

Question 7hardmultiple choice

Study the full IPv6 explanation →

A service provider is deploying Segment Routing over IPv6 (SRv6) and needs to ensure that the forwarding plane can support SRv6 encapsulated packets. Which hardware capability is most critical for SRv6 at the line rate?

A
MPLS label swap capability
Why wrong: SRv6 does not use MPLS; it uses IPv6 extension headers.
B
VXLAN tunnel termination
Why wrong: VXLAN is an overlay technology not directly related to SRv6.
C
IPv6 extension header processing
SRv6 uses the SRH, an IPv6 extension header, requiring line-rate processing.
D
NAT64 translation support
Why wrong: NAT64 is for IPv6-IPv4 translation, not required for SRv6.

Full breakdown with real-world context →

Question 8easymulti select

Review the full OSPF breakdown →

Which THREE of the following are required for successful operation of OSPFv3 in an IPv6 service provider network?

A
Interface activation with 'ipv6 ospf <process> area <area>'
Each interface must be explicitly activated for OSPFv3.
B
OSPFv3 process configuration with router-id
A router-id is required for the OSPFv3 process.
C
IPv6 unicast routing enabled globally
IPv6 routing must be enabled to forward IPv6 packets.
D
OSPFv3 authentication configured
Why wrong: Authentication is optional and not required for basic operation.
E
OSPFv3 LSA type 9 for link-local addresses
Why wrong: LSA type 9 is automatically generated, not a configuration requirement.

Full breakdown with real-world context →

Question 9hardmultiple choice

Review the full OSPF breakdown →

A service provider uses MP-BGP with IPv6 address family. They notice that routes redistributed from OSPFv3 are not being advertised to iBGP peers. The OSPF routes are internal. What is a likely reason?

A
The network command is missing under IPv6 address family.
Why wrong: Network command is used for originating routes, not for redistribution.
B
The bgp default ipv4-unicast command is disabled.
Why wrong: This command affects IPv4 unicast address family activation, not IPv6.
C
The next-hop is not resolved for IPv6.
If the BGP next-hop for the redistributed routes is not reachable via the IPv6 routing table, BGP will not advertise them to iBGP peers.
D
The routes are not in the IPv6 unicast table.
Why wrong: If redistributed, routes should be in the IPv6 table; this is not the common issue.

Full breakdown with real-world context →

These 350-501 practice questions are part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style 350-501 questions with detailed explanations, topic-based practice, mock exams, readiness tracking, and study analytics.

IPv6 Configuration Scenarios

How to approach ipv6 configuration scenarios

Quick answer

Related 350-501 topic practice pages

Architecture practice questions

Networking practice questions

MPLS and Segment Routing practice questions

Automation and Quality of Service practice questions

Services practice questions

Automation and Assurance practice questions

350-501 fundamentals practice questions

350-501 scenario practice questions

350-501 troubleshooting practice questions

Practice scenarios

A network engineer is troubleshooting OSPFv3 on a service provider's IPv6 network. The router shows that OSPFv3 adjacency never reaches FULL, says 'Init'. The neighbor is directly connected over a point-to-point link. What is the most likely cause?

A service provider is implementing Segment Routing over IPv6 (SRv6) in their core. They want to provide path isolation for different services using SRv6 SIDs. Which SID structure is used to encode both the locator and the function?

In Segment Routing over IPv6 (SRv6), what is the function of the SRH (Segment Routing Header)?

A service provider is designing its core network to carry both IPv4 and IPv6 traffic. Which BGP approach best minimizes routing table size on core routers while maintaining full reachability?

A service provider is implementing IPv6 transition in its core. Which transition mechanism is recommended for carrying IPv6 over an existing MPLS/IPv4 backbone without dual-stacking all routers?

Which THREE are valid reasons for using the 'ipv6 unicast-routing' command on a Cisco router?

A service provider is deploying Segment Routing over IPv6 (SRv6) and needs to ensure that the forwarding plane can support SRv6 encapsulated packets. Which hardware capability is most critical for SRv6 at the line rate?

Which THREE of the following are required for successful operation of OSPFv3 in an IPv6 service provider network?

A service provider uses MP-BGP with IPv6 address family. They notice that routes redistributed from OSPFv3 are not being advertised to iBGP peers. The OSPF routes are internal. What is a likely reason?