This chapter is all about safeguarding
your data and protecting your network. It discusses backup and recovery
practices and as well as disaster recovery and contingency plans. It begins
with two important concepts Integrity and availability. That is to say integrity
refers to the soundness of a network’s programs, data, services, devices, and
connections. Availability refers to how consistent and reliably a file or
system can be accessed by authorized personnel.
The text goes into discourse
about Malware and the various types and characteristics. It follows-up with
malware protection, anti-malware software and polices. If malware is unchecked it
will wreak havoc on the system.
Safeguarding against malware
is important; however another key component in maintaining the availability and
integrity of data is fault tolerance. Fault tolerance is the capacity for a
system to continue performing despite an unexpected software or hardware failure.
Examples of potential areas that need to be monitored are Environment, Power,
and Network design. Maintaining these areas is key in keeping fault tolerance to
a minimum.
It is also important to have
a backup strategy and storage plan. It could entail optical media, tape
backups, external disk backup or network backups. This would be a good time to lay
out a disaster recovery plan along with any contingencies.
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