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Question 719 - N10-008 discussion

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Which of the following is the DNS feature that controls how long a lookup is stored in cache on a server?

A.
CNAME
Answers
A.
CNAME
B.
TTL
Answers
B.
TTL
C.
SOA
Answers
C.
SOA
D.
SRV
Answers
D.
SRV
Suggested answer: B

Explanation:

TTL stands for Time to Live, and it is a field on DNS records that controls how long each record is valid and cached by the DNS resolver before it expires and requests a new one. The TTL value is measured in seconds, and it affects how quickly DNS changes propagate across the Internet. A lower TTL means that the DNS resolver will refresh the record more frequently, but it also increases the load on the DNS servers. A higher TTL means that the DNS resolver will cache the record longer, but it also delays the update of the record.

asked 02/10/2024
Vetti Paiyan
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