The fault-tolerant nature of the DNS ensures that:
A)if users can’t reach a host computer, they are redirected back to the previous page.
B)mistyped or misspelled Web addresses are automatically corrected.
C)if a document or file can’t be accessed, it won’t result in a 404 error.
D)the service continues functioning even if one nameserver goes down.
E)mismatched host names and domain names are still assigned with the correct IP address.

Question

The fault-tolerant nature of the DNS ensures that: 
A)if users can’t reach a host computer, they are redirected back to the previous page.
B)mistyped or misspelled Web addresses are automatically corrected.
C)if a document or file can’t be accessed, it won’t result in a 404 error.
D)the service continues functioning even if one nameserver goes down.
E)mismatched host names and domain names are still assigned with the correct IP address.

Quizplus · Accepted Answer

The fault-tolerant nature of the DNS ensures that the service continues functioning even if one nameserver goes down. This is achieved through the use of multiple redundant nameservers that store copies of DNS records, so if one nameserver goes down, the others can still respond to queries.

The Fault-Tolerant Nature of the DNS Ensures That