Section 28 Planning for the worst

Question 1

The individual elements, objects, or parts of a system that would cause the whole system to fail if they were to fail.

Answer 1

Single Point of Failure

Question 2

An enclosure that provides two or more complete power supplies.

Answer 2

Redundant Power Supply

Question 3

An unexpected increase in the amount of voltage provided.

Answer 3

Surge

Question 4

A short transient in voltage that can be due to a short circuit, tripped circuit breaker, power outage, or lightning strike.

Answer 4

Spike

Question 5

An unexpected decrease in the amount of voltage provided.

Answer 5

Sag

Question 6

Occurs when the voltage drops low enough that it typically causes the lights to dim and can cause a comptuer to shut off.

Answer 6

Brownout

Question 7

Occurs when there is a total loss of power for a prolonged period.

Answer 7

Blackout

Question 8

Combines the functionality of a surge protector with that of a battery backup.

Answer 8

Uninterruptible Power Supply (UPS)

Question 9

An emergency power system used when there is an outage of the regular electric grid power.

Answer 9

Backup Generator

Question 10

1. Portable Gas Engine
2. Permanently Installed
3. Battery Inventer

Answer 10

3 Types of Generators

Question 11

Allows the combination of multiple physical hard disks into a single logical hard disk drive that is recognized by the operating system.

Answer 11

Redundant Array of Independent Disks (RAID)

Question 12

Provides data striping across multiple disks to increase performance.

Answer 12

RAID 0

Question 13

Provides redundancy by mirroring the data identically on two hard disks.

Answer 13

RAID 1

Question 14

Provides redundancy by stripping data and parity data across the disk drives.

Answer 14

RAID 5

Question 15

Provides redundancy by stripping and double parity data across the disk drives.

Answer 15

RAID 6

Question 16

Creates a striped RAID of two mirrored RAIDs (Combines RAID 1 and RAID 0).

Answer 16

RAID 10

Question 17

Protects against the loss of the array’s data if a single disk fails (RAID 1 or RAID 5).

Answer 17

Fault Resistant RAID 0

Question 18

Provides two independent zones with full access to the data (RAID 10)

Answer 18

Disaster Tolerant RAID

Question 19

Two or more servers working together to perform a particular job function.

Answer 19

Cluster

Question 20

A secondary server can take over the function when the primary one fails.

Answer 20

Failover Cluster

Question 21

Servers are clustered in order to share resources such as CPU, RAM, and hard disks.

Answer 21

Load Balancing Cluster

Question 22

A near duplicate of the original site of the organization that can be up and running within minutes.

Answer 22

Hot Site

Question 23

A site that has computers, phones and servers but they might require some configurations before users can start working.

Answer 23

Warm Site

Question 24

A site that has tables, chairs, bathrooms, and possibly some technical items like phones and network cabling.

Answer 24

Cold Site

Question 25

All of the contents of a drive are backed up.

Answer 25

Full Backup

Question 26

Only conducts a backup of the contents of a drive that have changed since the last full or incremental backup.

Answer 26

Incremental Backup

Question 27

Only conducts a backup of the contents of a drive that has changed since the last full backup.

Answer 27

Differential Backup

Question 28

Each tape is used once per day for two weeks and then the entire set is reused.

Answer 28

10 Tape Rotation

Question 29

Three sets of backup tapes are defined as the son (daily), the father (weekly), and grandfather (monthly).

Answer 29

Grandfather Father Son

Question 30

Three sets of backup tapes (like the grandfather father son) that are rotated in a more complex system.

Answer 30

Towers of Hano

Question 31

Type of backup primarily used to capture the entire operating system image including all application and data.

Answer 31

Snapshot Backup

Question 32

The development of an organized and in depth plan for problems that could affect the access of data or the organization's building.

Answer 32

Disaster Recovery Planning

Question 33

A systematic activity that identifies organizational risks and determines their effect on ongoing, mission critical operations.

Answer 33

Business Impact Analysis (BIA)

Question 34

The longest period of time a business can be inoperable without causing irrevocable business failure.

Answer 34

Maximum Tolerable Downtime (MTD)

Question 35

The length of time it takes after an event to resume normal business operations and activities.

Answer 35

Recovery Time Objective (RTO)

Question 36

The length of time in addition to the RTO of individual systems to perform reintegration and testing of a restored or upgraded system following an event.

Answer 36

Work Recovery Time (WRT)

Question 37

The longest period of time that an organizations can tolerate lost data being unrecoverable.

Answer 37

Recovery Point Objective (RPO)

Question 38

Measures the average it takes to repair a network device when it breaks.

Answer 38

Mean Time to Repair (MTTR)

Question 39

Measures the average time between failures of a device.

Answer 39

Mean Time Between Failures (MTBF)