Which of the following types of resource record is generally used with virtual servers that point to
several servers offering network load balancing to distribute work?

A.
MX

B.
SRV

C.
SOA

D.
CNAME

Explanation:
CNAME (canonical name) is a resource record that creates an alias or an alternate DNS domain name
for a specific hostname. This resource record is generally used with virtual servers that point to
several servers that offer network load balancing in order to distribute work.

C is incorrect. SOA (Start of Authority) identifies the name server that is the authoritative
source of information for a DNS domain or zone.

B is incorrect. SRV (service) locates servers that are hosting a particular service, including
LDAP servers or domain controllers.

A is incorrect. MX (mail exchanger) is used to specify which mail exchanger to contact for a
specified domain and in what order to use each mail host.