CompTIA Network+ (N10-008) — Question 770

After the A record of a public website was updated, some visitors were unable to access the website. Which of the following should be adjusted to address the issue?

Answer options

• A. TTL
• B. MX
• C. TXT
• D. SOA

Correct answer: A

Explanation

The Time to Live (TTL) value determines how long DNS records are cached by servers and clients. If the TTL is set too high, changes to the A record may not propagate quickly, causing access issues. The other options, such as MX, TXT, and SOA, do not directly relate to the resolution of A record access problems.