Which of the following answers is directly related to providing High Availability to your users?

A.
Backup data circuits

B.
Good hiring practices

C.
Updated Antivirus Software

D.
Senior Executive Support

Explanation:
When planning for high availability, any critical component of your data network should have some sort of
redundancy or backup plan in case it does fail.
One of the ways to provide uninterrupted access to information assets is through redundancy and fault
tolerance. Redundancy refers to providing multiple instances of either a physical or logical component such that
a second component is available if the first fails. Fault tolerance is a broader concept that includes redundancy
but refers to any process that allows a system to continue making information assets available in the case of a
failure.
This can include items like these:
RAID array disks on servers so that if any single drive fails the server remains available.
Backup network connections. Many internet services providers provide these for a fee.
Backup power for all systems and circuits.
Fire suppression and evacuation plans.
A data backup practice to backup and restore data while storing backups offsite in a safe, remote location.
Incorrect Answers:
B: Good hiring practices can ensure that good staff are hired. However, this does not ensure high availability.
C: Updated Antivirus Software does not ensure high availability, although it’s a critical part of defense in depth.
D: Senior Executive Support, while this is important for funding equipment for high availability, it isn’t directly
related to providing the high availability.