H12-311_V3.0 · Question #82
If the AP wants to obtain the IP address of the AC through the DNS server, it must first obtain its own IP address, DHCP Server and DNS IP addresses.
The correct answer is A. True. Option A is correct because network communication follows a strict bootstrapping order: before an AP can send any query to a DNS server, it must first have its own IP address (to be a participant on the network), which it typically obtains via DHCP. The DHCP response also…
Question
If the AP wants to obtain the IP address of the AC through the DNS server, it must first obtain its own IP address, DHCP Server and DNS IP addresses.
Options
- ATrue
- BFalse
How the community answered
(44 responses)- A82% (36)
- B18% (8)
Explanation
Option A is correct because network communication follows a strict bootstrapping order: before an AP can send any query to a DNS server, it must first have its own IP address (to be a participant on the network), which it typically obtains via DHCP. The DHCP response also provides the DNS server's IP address, which the AP then uses to resolve the AC's hostname into an IP address. Without completing these prior steps, the AP has no network identity and no target address for its DNS query, making the entire DNS-based discovery process impossible.
Option B is wrong because skipping any of these prerequisite steps would leave the AP unable to formulate or deliver a DNS request -- you cannot query a server whose address you do not yet know, using a source address you do not yet have.
Memory tip: Think of it as a chain of dependencies -- Own IP comes from DHCP, DNS address comes from DHCP, and AC IP comes from DNS. Each link must be acquired in order before the next one is reachable.
Topics
Community Discussion
No community discussion yet for this question.