Which of the following descriptions of the DNS protocol are correct? (Multiple Choice)

The correct answer is A. There are four types of servers in the DNS domain name resolution system: root server, top-level B. DNS protocol port number is 53 D. If the DNS cache server does not have the domain name resolution cache to be queried, it will. See the full explanation below for the reasoning.

Question

Which of the following descriptions of the DNS protocol are correct? (Multiple Choice)

Options

AThere are four types of servers in the DNS domain name resolution system: root server, top-level
BDNS protocol port number is 53
CThe DNS protocol transport layer can use either TCP or UDP
DIf the DNS cache server does not have the domain name resolution cache to be queried, it will

How the community answered

(32 responses)

A
78% (25)
C
22% (7)

Community Discussion

No community discussion yet for this question.

Full H12-711_V4.0 Practice