Examkin

Question

Difficulty: EasyIPv6 Addressing and Deployment

A system administrator is preparing to deploy IPv6 across a corporate local area network and is verifying basic IPv6 addressing standards and migration mechanisms. Which of the following statements regarding IPv6 addressing and deployment are correct? (Select TWO.)

  1. Link-local addresses starting with the fe80::/10 prefix are automatically configured on IPv6-enabled interfaces to support local network segment communication.Answer
  2. B
    Zero compression using a double colon (::) can be applied multiple times within a single IPv6 address to represent separate groups of consecutive zero hextets.
  3. Dual-stack deployment enables network devices to run IPv4 and IPv6 protocol suites simultaneously on the same physical network interface.Answer
  4. D
    Standard DNS name resolution requires configuring host A records to map domain names to IPv6 destination addresses.

Answer

The correct statements are that link-local addresses starting with fe80::/10 are automatically configured on IPv6-enabled interfaces for local segment communication, and dual-stack deployment allows running IPv4 and IPv6 simultaneously on the same interface.
Link-local addresses (fe80::/10) are mandatory auto-configured IPv6 addresses used for link-scoped communication. Additionally, dual-stack protocol operation allows network interfaces to process both IPv4 and IPv6 traffic concurrently during migration.

Step-by-Step Solution

1
Evaluate link-local addressing characteristics
Link-local addresses use the prefix fe80::/10 and are automatically generated on every IPv6-capable interface for local subnet communication.
IPv6 mandates link-local scoping for neighbor discovery and basic local connectivity.
2
Verify IPv6 zero compression rules
The double colon (::) can only be used once per address to prevent ambiguous address expansion.
Multiple double colons make it impossible to determine the exact number of suppressed zeros in each position.
3
Examine dual-stack coexistence mechanics
Dual-stack allows dual-protocol operation on a single network interface.
It is the primary transition mechanism recommended for incremental IPv6 migration.
4
Identify DNS record types for IPv6
AAAA records are required for IPv6 host resolution, not A records.
A records map hostnames to 32-bit IPv4 addresses, whereas AAAA records map hostnames to 128-bit IPv6 addresses.

Key Concept

IPv6 Address Scoping, Compression Rules, and Dual-Stack Coexistence
Rate this question

Topics

IPv6 Addressing and Deployment

More questions from this topic