OBTAIN AN IP ADDRESS BY USING DHCPBEFORE YOU BEGIN THIS EXERCISE, YOU...

2. In DNS name resolution, which of the following statements about TTL are correct?

(Choose all that apply.)

a. TTL is the length of time a query can exist before it is discarded.

b. Shorter TTL values help ensure that data about the domain namespace is

more current across the network.

c. Longer TTL values increase the amount of DNS traffic.

d. Longer TTL values cause the cached values to be retained longer.

The correct answers are A, B, and D. C is not correct because longer TTL values do not increaseDNS traffic, but shorter TTL values can increase it.