Which two query types does a client make to a DNS server? (Choose Two)

The correct answer is A. AAAA E. PTR. DNS clients make different record type queries to DNS servers. A (AAAA) is correct-this is the DNS query type used to resolve a hostname to an IPv6 address (analogous to 'A' records for IPv4). E (PTR) is correct-PTR (Pointer) records are used for reverse DNS lookups, resolving…

Network Fundamentals

Question

Options

AAAAA
BACK
CDISCOVER
DInverse
EPTR

How the community answered

(43 responses)

A
86% (37)
B
7% (3)
C
2% (1)
D
5% (2)

Explanation

DNS clients make different record type queries to DNS servers. A (AAAA) is correct-this is the DNS query type used to resolve a hostname to an IPv6 address (analogous to 'A' records for IPv4). E (PTR) is correct-PTR (Pointer) records are used for reverse DNS lookups, resolving an IP address back to a hostname. ACK (B) is a TCP flag, not a DNS query type. DISCOVER (C) is a DHCP message type, not DNS. Inverse (D) is not a standard DNS query type-the correct term for reverse lookups is a PTR query.

Topics

#DNS#Network Protocols#DNS Record Types#Client Queries

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