A company is migrating to IPv6 but must maintain connectivity with IPv4-only servers on the internet. The network team has decided to implement a translation mechanism that allows IPv6-only clients to access IPv4-only servers without requiring any changes to the servers. Which mechanism should they choose?

Teredo, because it provides IPv6 connectivity over IPv4 UDP tunnels, which is suitable for NAT traversal.

6to4 tunneling, because it encapsulates IPv6 packets in IPv4 headers to traverse IPv4-only networks.

Dual-stack, because it allows both protocols to run simultaneously on the same interface.

NAT64, because it translates IPv6 packets to IPv4 packets, allowing IPv6-only clients to communicate with IPv4-only servers.

A network administrator is configuring a new IPv6 network segment and wants hosts to automatically obtain an IPv6 address without any stateful DHCPv6 server. The administrator has enabled IPv6 on the router interface and configured it to send Router Advertisements. What else must be configured on the router to ensure hosts can use SLAAC to obtain a global unicast address?

Set the 'Other configuration flag' (O flag) in Router Advertisements to 1 so hosts request other configuration from DHCPv6.

Enable the 'Managed address configuration' flag (M flag) in Router Advertisements to 1 so hosts use DHCPv6 for address assignment.

Ensure the Router Advertisement includes a valid IPv6 prefix with the on-link flag set, and that the router has a route for that prefix.

Configure a DHCPv6 server to assign addresses and other settings, because SLAAC cannot provide a default gateway.

A network administrator is concerned about IPv6 Neighbor Discovery Protocol (NDP) attacks on the local network. The administrator wants to implement a solution that can detect and prevent NDP spoofing attacks. Which technology is specifically designed to secure NDP?

IPsec (Authentication Header) for all NDP messages

RA Guard (Router Advertisement Guard)

Secure Neighbor Discovery (SEND) protocol

GIAC Certified Intrusion Analyst

Domain 1Objective 3

IPv6 GCIA Practice Questions (Page 2)

Part of the Network Fundamentals domain, which makes up ~35% of our current practice bank. GIAC (SANS) does not publish an official question count, but from its 240-minute exam (~95–160 total, ~33–56 in this domain), expect 7–11 from this objective — we provide 36 practice questions to prepare you well beyond it. (estimate)

36questions here

8free pages

8concepts

Questions 6–10

6foundation · easy
Which IPv6 address type is used to send a packet to the nearest interface among a group of interfaces, all identified by the same address?
Select an answer first
7foundation · easy
Which IPv6 extension header is used to carry information that must be examined by every node along the path?
Select an answer first
8application · medium
A company is migrating to IPv6 but must maintain connectivity with IPv4-only servers on the internet. The network team has decided to implement a translation mechanism that allows IPv6-only clients to access IPv4-only servers without requiring any changes to the servers. Which mechanism should they choose?
Select an answer first
9application · medium
A network administrator is configuring a new IPv6 network segment and wants hosts to automatically obtain an IPv6 address without any stateful DHCPv6 server. The administrator has enabled IPv6 on the router interface and configured it to send Router Advertisements. What else must be configured on the router to ensure hosts can use SLAAC to obtain a global unicast address?
Select an answer first
10application · medium
A network administrator is concerned about IPv6 Neighbor Discovery Protocol (NDP) attacks on the local network. The administrator wants to implement a solution that can detect and prevent NDP spoofing attacks. Which technology is specifically designed to secure NDP?
Select an answer first

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IPv6 GCIA Practice Questions (Page 2)

Questions 6–10

Which IPv6 address type is used to send a packet to the nearest interface among a group of interfaces, all identified by the same address?

Which IPv6 extension header is used to carry information that must be examined by every node along the path?

A network administrator is concerned about IPv6 Neighbor Discovery Protocol (NDP) attacks on the local network. The administrator wants to implement a solution that can detect and prevent NDP spoofing attacks. Which technology is specifically designed to secure NDP?

Keep studying — Network Fundamentals