Chapter 15 Practice Test Answers
1.
D. Yearly rotations maintain the greatest amount of data to use for disaster
recovery and historical archiving.
2.
B, E. RAID disk storage and clustered servers provide fault tolerance.
3.
B. RAID 5 needs a minimum of three disks.
4.
E. For the protection of data, all tapes should be stored off-site in a secure place.
5.
A, C, D. To have a comprehensive documentation effort, the document must
include cable diagrams for the network, hardware and software inventories, and change
logs from servers.
6.
A. Because everything is on one tape, a daily full backup gives the administrator
the ability to easily restore any data that may be lost.
7.
B. Surge protectors do not protect against dirty power.
8.
C. Only RAID 5 provides fault tolerance and the ability to replace the disk and
recreate the data relatively quickly.
9.
A. Clustered servers can be configured to provide load balancing for the network.
10.
A, B, C. Any options that can bring a business back online after a disaster should
be considered for the disaster recovery plan.
11.
E. With failover clusters, one server services the network while the other
duplicates all functions except servicing the network (until the first server fails).
12.
A, D. NAS recognizes CIFS and NFS.
13. B. Online UPS provides a constant power resource to the server even while the power
is up.
14.
C. Only RAID 5 offers striping with distributed parity.
15.
C. If backups are not completing as planned, the first place to check is amount of
data and capacity of tapes. The tapes are running out of space.
16.
D. The full backup weekly and differential backup daily allows the administrator
or technician to restore from just two tapes but also allows daily backup operations to be
completed during off hours.
17.
A. RAID 0, striping without parity, gives the best read and write access without
fault tolerance.
18.
C. The controller from disk 0 can fail, or the disk 0 can fail, and users can still
access data.
19.
C. The minimum number of drives needed for RAID 5 is three.
20.
A. Incremental backups pick up any files that have changed since the last backup.
21.
B. NAS was designed to be platform (operating system) independent.