2.5 Given a scenario, implement cybersecurity resilience.

Question 1

The implementation of alternate means to perform work tasks or accomplish IT functions to support or maintain availability of a resource or service. Redundancy helps reduce single points of failure and improves fault tolerance.

Answer 1

Redundancy

Question 2

The ability of a network, system, or computer to withstand a certain level of failures, faults, or problems and continue to provide reliable service. Fault tolerance is also a form of avoiding single points of failure.

Answer 2

Fault Tolerance

Question 3

Redundancy is improved when this is used to place more physical distance between duplicate systems.

Answer 3

Geographic disposal

Question 4

This high availability solution employs multiple hard drives in a single storage volume with some level of drive loss protection.

Answer 4

RAID

Question 5

An implementation where multiple pathways are provided between the CPU/RAM and the storage devices.

Answer 5

Multipath

Question 6

Used to spread or distribute network traffic load across several network links or network devices.

Answer 6

Load balancers

Question 7

The bonding, binding, or grouping of two or more NICs together to act as a single connection to the network.

Answer 7

NIC Teaming

Question 8

The duplication of data between two locations.

Answer 8

Replication

Question 9

The only means of insurance available to your data resources in the event of a loss, disruption, corruption, intrusion, destruction, infection, or disaster.

Answer 9

Backups

Question 10

Copies all files to the backup media regardless of the archive bit setting.

Answer 10

Full backup

Question 11

Copies only those files with a set or flagged archive bit. It clears or resets the archive bit, thus selecting only those files that are new or that have changed.

Answer 11

Incremental backup

Question 12

Copies only those files with a set or flagged archive bit. It doesn’t alter the archive bit, thus selecting only those files that are new or that have changed.

Answer 12

Differential backup

Question 13

A copy of the live current operating environment.

Answer 13

Snapshot

Question 14

A computer system that does not allow, support, or retain changes.

Answer 14

Non-persistence

Question 15

A type of backup or recovery process that returns to a state of data before edits or changes were implemented.

Answer 15

Revert to known state

Question 16

A concept similar to that of reverting to a known state, but the difference is that a state retention may address a larger portion of the environment than just configuration.

Answer 16

Last known-good confirmation (LKGC)

Question 17

A portable storage device that can be used to boot a computer. It contains a read-to-run or portable version of an operating system.

Answer 17

Live boot media

Question 18

The availability of a system has been secured to offer reliable assurance that the system will be online, active, and able to respond to requests in a timely manner, and that there will be sufficient bandwidth to accomplish requested tasks in the time required. RAID offers this solution.

Answer 18

High availability

Question 19

The order in which a recovery effort should proceed. In most situations, when a disaster strikes, the most mission-critical business processes should be restored first.

Answer 19

Restoration order

Question 20

Using multiple different technologies, products, and vendors to support cybersecurity resiliency.

Answer 20

Diversity

Question 21

The use of multiple types of access controls in literal or theoretical concentric circles or layers. It should include vendor diversity and control diversity.

Answer 21

Defense in depth (Layered security)