Which of the following is a fault tolerant feature provided by a server OS? (Choose all that apply.)
A) RAID
B) resolver cache
C) SMTP client
D) server cluster
E) hot-swappable devices

Question

Quizplus · Accepted Answer

A) RAID (Redundant Array of Inexpensive Disks) is a fault tolerant feature that provides data redundancy by distributing data across multiple hard drives. If one drive fails, the data can be recovered from the other drives.
D) Server cluster refers to a group of inter-connected servers that work together in a fault tolerant manner. If one server fails, another server in the cluster can take over its responsibilities.
E) Hot-swappable devices allow for the replacement of a failed hardware component without shutting down the entire system. This minimizes downtime and helps maintain system availability. 
B) Resolver cache is a function of the DNS (Domain Name System), which helps to convert domain names to IP addresses. While it can improve performance, it is not a fault tolerant feature.
C) SMTP client (Simple Mail Transfer Protocol) is a program used for sending and receiving email messages. While it is an important feature for email communication, it is not a fault tolerant feature.

Which of the Following Is a Fault Tolerant Feature Provided