A large financial institution is implementing IPv6 for their global application infrastructure. They require an addressing mechanism that will automatically route client requests to the topologically nearest server instance from their distributed pool of authentication servers to minimize latency and improve resilience. Which addressing mechanism would best meet this requirement?
The correct answer is anycast addressing. In IPv6, anycast addressing enables packets to be delivered to the topologically nearest device among a group of potential receivers that share the same address. When multiple servers host the same anycast address, routers will direct traffic to the nearest server based on routing metrics, which reduces latency and provides automatic failover if a server becomes unavailable.
Unicast addressing identifies a single interface, so it cannot direct traffic to the nearest of several potential servers. Multicast addressing sends packets to all members of a specified group simultaneously, which would inefficiently deliver authentication requests to all servers instead of just the nearest one. Global unicast addressing provides worldwide reachability to a specific interface but lacks the automatic nearest-node routing capability required in this scenario.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is anycast addressing and how does it work?
Open an interactive chat with Bash
What are the differences between anycast, unicast, multicast, and unique local addressing?
Open an interactive chat with Bash
Why is minimizing latency important for a financial institution's infrastructure?
Open an interactive chat with Bash
ISC2 CISSP
Communication and Network Security
Your Score:
Report Issue
Bash, the Crucial Exams Chat Bot
AI Bot
Loading...
Loading...
Loading...
IT & Cybersecurity Package Join Premium for Full Access