CompTIA Network+ N10-009 Disaster Recovery Metrics Sites And High Availability Practice Test

 

Objective 3.3 • 20 original questions

This CompTIA Network+ N10-009 practice test focuses on disaster recovery concepts. All questions are original ExamSnap scenarios aligned to the current N10-009 blueprint; they are not copied from CompTIA exam content. Use the complete N10-009 collection for broader practice across all five domains. For broader exam preparation, review the CompTIA Network+ N10-009 Exam Dumps page.

Instructions: Select the best answer for each question. Review the explanation after answering; each distractor includes a reason it is not the best choice for that scenario.

Question 1

At Litware Manufacturing, a systems administrator is reviewing a network change. The requirement is to define how much recent data the business can afford to lose after a disaster. Which option is the best fit? The decision applies to a branch-office rollout.

1. Active-passive
2. MTBF
3. Hot site
4. RPO
5. Cold site

Correct answer: D

Why: Recovery point objective is the maximum acceptable data-loss window measured backward in time. This directly satisfies the requirement: define how much recent data the business can afford to lose after a disaster.

Option review:

A: One environment handles traffic while a standby becomes active after failure. However, it does not most directly satisfy the requirement in this scenario: define how much recent data the business can afford to lose after a disaster.

B: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: define how much recent data the business can afford to lose after a disaster.

C: Maintains ready-to-run infrastructure and current data for rapid recovery. However, it does not most directly satisfy the requirement in this scenario: define how much recent data the business can afford to lose after a disaster.

D: Recovery point objective is the maximum acceptable data-loss window measured backward in time. This directly satisfies the requirement: define how much recent data the business can afford to lose after a disaster.

E: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery. However, it does not most directly satisfy the requirement in this scenario: define how much recent data the business can afford to lose after a disaster.

Learning point: Use RPO when the key requirement is to define how much recent data the business can afford to lose after a disaster.

Question 2

A ticket at Woodgrove Bank says the team must define how quickly a service must be restored after a disaster. Which technology or concept most directly addresses this requirement? The decision applies to a campus refresh.

1. Tabletop exercise
2. MTTR
3. Active-passive
4. RTO
5. Active-active

Correct answer: D

Why: Recovery time objective is the target maximum time to restore a service after disruption. This directly satisfies the requirement: define how quickly a service must be restored after a disaster.

Option review:

A: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. However, it does not most directly satisfy the requirement in this scenario: define how quickly a service must be restored after a disaster.

B: Mean time to repair measures average time required to restore a failed component/service. However, it does not most directly satisfy the requirement in this scenario: define how quickly a service must be restored after a disaster.

C: One environment handles traffic while a standby becomes active after failure. However, it does not most directly satisfy the requirement in this scenario: define how quickly a service must be restored after a disaster.

D: Recovery time objective is the target maximum time to restore a service after disruption. This directly satisfies the requirement: define how quickly a service must be restored after a disaster.

E: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure. However, it does not most directly satisfy the requirement in this scenario: define how quickly a service must be restored after a disaster.

Learning point: Use RTO when the key requirement is to define how quickly a service must be restored after a disaster.

Question 3

During a design meeting at Blue Yonder Airlines, the junior network administrator needs to measure average repair/restoration duration after failures. What should be selected? The decision applies to a data-center segment.

1. RPO
2. RTO
3. MTTR
4. Hot site
5. Tabletop exercise

Correct answer: C

Why: Mean time to repair measures average time required to restore a failed component/service. This directly satisfies the requirement: measure average repair/restoration duration after failures.

Option review:

A: Recovery point objective is the maximum acceptable data-loss window measured backward in time. However, it does not most directly satisfy the requirement in this scenario: measure average repair/restoration duration after failures.

B: Recovery time objective is the target maximum time to restore a service after disruption. However, it does not most directly satisfy the requirement in this scenario: measure average repair/restoration duration after failures.

C: Mean time to repair measures average time required to restore a failed component/service. This directly satisfies the requirement: measure average repair/restoration duration after failures.

D: Maintains ready-to-run infrastructure and current data for rapid recovery. However, it does not most directly satisfy the requirement in this scenario: measure average repair/restoration duration after failures.

E: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. However, it does not most directly satisfy the requirement in this scenario: measure average repair/restoration duration after failures.

Learning point: Use MTTR when the key requirement is to measure average repair/restoration duration after failures.

Question 4

Contoso Health is updating its network standard. Which option best meets the need to measure reliability by average operating time between failures? The decision applies to a remote-site migration.

1. MTBF
2. Active-active
3. RTO
4. Tabletop exercise
5. Cold site

Correct answer: A

Why: Mean time between failures measures expected operational time between failures. This directly satisfies the requirement: measure reliability by average operating time between failures.

Option review:

A: Mean time between failures measures expected operational time between failures. This directly satisfies the requirement: measure reliability by average operating time between failures.

B: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure. However, it does not most directly satisfy the requirement in this scenario: measure reliability by average operating time between failures.

C: Recovery time objective is the target maximum time to restore a service after disruption. However, it does not most directly satisfy the requirement in this scenario: measure reliability by average operating time between failures.

D: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. However, it does not most directly satisfy the requirement in this scenario: measure reliability by average operating time between failures.

E: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery. However, it does not most directly satisfy the requirement in this scenario: measure reliability by average operating time between failures.

Learning point: Use MTBF when the key requirement is to measure reliability by average operating time between failures.

Question 5

A field technician at Litware Manufacturing is validating a proposed solution. The design must minimize DR-site cost when longer recovery time is acceptable. Which answer is most appropriate? The decision applies to a operations lab.

1. Active-active
2. MTBF
3. Cold site
4. Active-passive
5. Hot site

Correct answer: C

Why: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery. This directly satisfies the requirement: minimize DR-site cost when longer recovery time is acceptable.

Option review:

A: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure. However, it does not most directly satisfy the requirement in this scenario: minimize DR-site cost when longer recovery time is acceptable.

B: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: minimize DR-site cost when longer recovery time is acceptable.

C: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery. This directly satisfies the requirement: minimize DR-site cost when longer recovery time is acceptable.

D: One environment handles traffic while a standby becomes active after failure. However, it does not most directly satisfy the requirement in this scenario: minimize DR-site cost when longer recovery time is acceptable.

E: Maintains ready-to-run infrastructure and current data for rapid recovery. However, it does not most directly satisfy the requirement in this scenario: minimize DR-site cost when longer recovery time is acceptable.

Learning point: Use Cold site when the key requirement is to minimize DR-site cost when longer recovery time is acceptable.

Question 6

For a new deployment at Woodgrove Bank, the networking team wants to balance recovery speed and DR-site cost. Which choice most directly satisfies the goal? The decision applies to a production maintenance window.

1. Tabletop exercise
2. Active-passive
3. Warm site
4. MTBF
5. RPO

Correct answer: C

Why: Provides some preinstalled infrastructure and data/services but requires additional activation work. This directly satisfies the requirement: balance recovery speed and DR-site cost.

Option review:

A: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. However, it does not most directly satisfy the requirement in this scenario: balance recovery speed and DR-site cost.

B: One environment handles traffic while a standby becomes active after failure. However, it does not most directly satisfy the requirement in this scenario: balance recovery speed and DR-site cost.

C: Provides some preinstalled infrastructure and data/services but requires additional activation work. This directly satisfies the requirement: balance recovery speed and DR-site cost.

D: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: balance recovery speed and DR-site cost.

E: Recovery point objective is the maximum acceptable data-loss window measured backward in time. However, it does not most directly satisfy the requirement in this scenario: balance recovery speed and DR-site cost.

Learning point: Use Warm site when the key requirement is to balance recovery speed and DR-site cost.

Question 7

At Blue Yonder Airlines, a systems administrator is reviewing a network change. The requirement is to achieve the fastest site-level recovery at higher cost. Which option is the best fit? The decision applies to a new floor deployment.

1. MTBF
2. RTO
3. RPO
4. Tabletop exercise
5. Hot site

Correct answer: E

Why: Maintains ready-to-run infrastructure and current data for rapid recovery. This directly satisfies the requirement: achieve the fastest site-level recovery at higher cost.

Option review:

A: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: achieve the fastest site-level recovery at higher cost.

B: Recovery time objective is the target maximum time to restore a service after disruption. However, it does not most directly satisfy the requirement in this scenario: achieve the fastest site-level recovery at higher cost.

C: Recovery point objective is the maximum acceptable data-loss window measured backward in time. However, it does not most directly satisfy the requirement in this scenario: achieve the fastest site-level recovery at higher cost.

D: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. However, it does not most directly satisfy the requirement in this scenario: achieve the fastest site-level recovery at higher cost.

E: Maintains ready-to-run infrastructure and current data for rapid recovery. This directly satisfies the requirement: achieve the fastest site-level recovery at higher cost.

Learning point: Use Hot site when the key requirement is to achieve the fastest site-level recovery at higher cost.

Question 8

A ticket at Contoso Health says the team must provide redundancy while keeping a secondary system on standby. Which technology or concept most directly addresses this requirement? The decision applies to a service-recovery review.

1. Active-passive
2. Tabletop exercise
3. Validation test
4. Warm site
5. MTBF

Correct answer: A

Why: One environment handles traffic while a standby becomes active after failure. This directly satisfies the requirement: provide redundancy while keeping a secondary system on standby.

Option review:

A: One environment handles traffic while a standby becomes active after failure. This directly satisfies the requirement: provide redundancy while keeping a secondary system on standby.

B: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. However, it does not most directly satisfy the requirement in this scenario: provide redundancy while keeping a secondary system on standby.

C: Performs a practical check that recovery systems, backups, or failover procedures actually work. However, it does not most directly satisfy the requirement in this scenario: provide redundancy while keeping a secondary system on standby.

D: Provides some preinstalled infrastructure and data/services but requires additional activation work. However, it does not most directly satisfy the requirement in this scenario: provide redundancy while keeping a secondary system on standby.

E: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: provide redundancy while keeping a secondary system on standby.

Learning point: Use Active-passive when the key requirement is to provide redundancy while keeping a secondary system on standby.

Question 9

During a design meeting at Litware Manufacturing, the junior network administrator needs to use redundant systems that both handle live workload during normal operation. What should be selected? The decision applies to a branch-office rollout.

1. Hot site
2. RTO
3. Active-active
4. Validation test
5. RPO

Correct answer: C

Why: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure. This directly satisfies the requirement: use redundant systems that both handle live workload during normal operation.

Option review:

A: Maintains ready-to-run infrastructure and current data for rapid recovery. However, it does not most directly satisfy the requirement in this scenario: use redundant systems that both handle live workload during normal operation.

B: Recovery time objective is the target maximum time to restore a service after disruption. However, it does not most directly satisfy the requirement in this scenario: use redundant systems that both handle live workload during normal operation.

C: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure. This directly satisfies the requirement: use redundant systems that both handle live workload during normal operation.

D: Performs a practical check that recovery systems, backups, or failover procedures actually work. However, it does not most directly satisfy the requirement in this scenario: use redundant systems that both handle live workload during normal operation.

E: Recovery point objective is the maximum acceptable data-loss window measured backward in time. However, it does not most directly satisfy the requirement in this scenario: use redundant systems that both handle live workload during normal operation.

Learning point: Use Active-active when the key requirement is to use redundant systems that both handle live workload during normal operation.

Question 10

Woodgrove Bank is updating its network standard. Which option best meets the need to test the DR plan through discussion and decision-making rather than production failover? The decision applies to a campus refresh.

1. Tabletop exercise
2. RTO
3. Hot site
4. Active-passive
5. RPO

Correct answer: A

Why: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. This directly satisfies the requirement: test the DR plan through discussion and decision-making rather than production failover.

Option review:

A: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. This directly satisfies the requirement: test the DR plan through discussion and decision-making rather than production failover.

B: Recovery time objective is the target maximum time to restore a service after disruption. However, it does not most directly satisfy the requirement in this scenario: test the DR plan through discussion and decision-making rather than production failover.

C: Maintains ready-to-run infrastructure and current data for rapid recovery. However, it does not most directly satisfy the requirement in this scenario: test the DR plan through discussion and decision-making rather than production failover.

D: One environment handles traffic while a standby becomes active after failure. However, it does not most directly satisfy the requirement in this scenario: test the DR plan through discussion and decision-making rather than production failover.

E: Recovery point objective is the maximum acceptable data-loss window measured backward in time. However, it does not most directly satisfy the requirement in this scenario: test the DR plan through discussion and decision-making rather than production failover.

Learning point: Use Tabletop exercise when the key requirement is to test the DR plan through discussion and decision-making rather than production failover.

Question 11

A field technician at Blue Yonder Airlines is validating a proposed solution. The design must verify the DR solution technically rather than only reviewing documentation. Which answer is most appropriate? The decision applies to a data-center segment.

1. Hot site
2. Tabletop exercise
3. MTBF
4. Active-passive
5. Validation test

Correct answer: E

Why: Performs a practical check that recovery systems, backups, or failover procedures actually work. This directly satisfies the requirement: verify the DR solution technically rather than only reviewing documentation.

Option review:

A: Maintains ready-to-run infrastructure and current data for rapid recovery. However, it does not most directly satisfy the requirement in this scenario: verify the DR solution technically rather than only reviewing documentation.

B: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. However, it does not most directly satisfy the requirement in this scenario: verify the DR solution technically rather than only reviewing documentation.

C: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: verify the DR solution technically rather than only reviewing documentation.

D: One environment handles traffic while a standby becomes active after failure. However, it does not most directly satisfy the requirement in this scenario: verify the DR solution technically rather than only reviewing documentation.

E: Performs a practical check that recovery systems, backups, or failover procedures actually work. This directly satisfies the requirement: verify the DR solution technically rather than only reviewing documentation.

Learning point: Use Validation test when the key requirement is to verify the DR solution technically rather than only reviewing documentation.

Question 12

During a new floor deployment, Contoso Health is comparing several networking concepts. Which option is accurately characterized by this statement: Recovery point objective is the maximum acceptable data-loss window measured backward in time.

1. RPO
2. Warm site
3. Tabletop exercise
4. MTTR
5. MTBF

Correct answer: A

Why: Recovery point objective is the maximum acceptable data-loss window measured backward in time. This directly satisfies the requirement: Recovery point objective is the maximum acceptable data-loss window measured backward in time..

Option review:

A: Recovery point objective is the maximum acceptable data-loss window measured backward in time. This directly satisfies the requirement: Recovery point objective is the maximum acceptable data-loss window measured backward in time..

B: Provides some preinstalled infrastructure and data/services but requires additional activation work. However, it does not most directly satisfy the requirement in this scenario: Recovery point objective is the maximum acceptable data-loss window measured backward in time..

C: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. However, it does not most directly satisfy the requirement in this scenario: Recovery point objective is the maximum acceptable data-loss window measured backward in time..

D: Mean time to repair measures average time required to restore a failed component/service. However, it does not most directly satisfy the requirement in this scenario: Recovery point objective is the maximum acceptable data-loss window measured backward in time..

E: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: Recovery point objective is the maximum acceptable data-loss window measured backward in time..

Learning point: Use RPO when the key requirement is to define how much recent data the business can afford to lose after a disaster.

Question 13

During a service-recovery review, Litware Manufacturing is comparing several networking concepts. Which option is accurately characterized by this statement: Recovery time objective is the target maximum time to restore a service after disruption.

1. MTTR
2. MTBF
3. RTO
4. RPO
5. Validation test

Correct answer: C

Why: Recovery time objective is the target maximum time to restore a service after disruption. This directly satisfies the requirement: Recovery time objective is the target maximum time to restore a service after disruption..

Option review:

A: Mean time to repair measures average time required to restore a failed component/service. However, it does not most directly satisfy the requirement in this scenario: Recovery time objective is the target maximum time to restore a service after disruption..

B: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: Recovery time objective is the target maximum time to restore a service after disruption..

C: Recovery time objective is the target maximum time to restore a service after disruption. This directly satisfies the requirement: Recovery time objective is the target maximum time to restore a service after disruption..

D: Recovery point objective is the maximum acceptable data-loss window measured backward in time. However, it does not most directly satisfy the requirement in this scenario: Recovery time objective is the target maximum time to restore a service after disruption..

E: Performs a practical check that recovery systems, backups, or failover procedures actually work. However, it does not most directly satisfy the requirement in this scenario: Recovery time objective is the target maximum time to restore a service after disruption..

Learning point: Use RTO when the key requirement is to define how quickly a service must be restored after a disaster.

Question 14

During a branch-office rollout, Woodgrove Bank is comparing several networking concepts. Which option is accurately characterized by this statement: Mean time to repair measures average time required to restore a failed component/service.

1. MTBF
2. RPO
3. Hot site
4. MTTR
5. Tabletop exercise

Correct answer: D

Why: Mean time to repair measures average time required to restore a failed component/service. This directly satisfies the requirement: Mean time to repair measures average time required to restore a failed component/service..

Option review:

A: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: Mean time to repair measures average time required to restore a failed component/service..

B: Recovery point objective is the maximum acceptable data-loss window measured backward in time. However, it does not most directly satisfy the requirement in this scenario: Mean time to repair measures average time required to restore a failed component/service..

C: Maintains ready-to-run infrastructure and current data for rapid recovery. However, it does not most directly satisfy the requirement in this scenario: Mean time to repair measures average time required to restore a failed component/service..

D: Mean time to repair measures average time required to restore a failed component/service. This directly satisfies the requirement: Mean time to repair measures average time required to restore a failed component/service..

E: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. However, it does not most directly satisfy the requirement in this scenario: Mean time to repair measures average time required to restore a failed component/service..

Learning point: Use MTTR when the key requirement is to measure average repair/restoration duration after failures.

Question 15

During a campus refresh, Blue Yonder Airlines is comparing several networking concepts. Which option is accurately characterized by this statement: Mean time between failures measures expected operational time between failures.

1. Warm site
2. Tabletop exercise
3. Validation test
4. MTBF
5. Cold site

Correct answer: D

Why: Mean time between failures measures expected operational time between failures. This directly satisfies the requirement: Mean time between failures measures expected operational time between failures..

Option review:

A: Provides some preinstalled infrastructure and data/services but requires additional activation work. However, it does not most directly satisfy the requirement in this scenario: Mean time between failures measures expected operational time between failures..

B: Walks participants through a disaster scenario to validate roles and procedures without a full technical failover. However, it does not most directly satisfy the requirement in this scenario: Mean time between failures measures expected operational time between failures..

C: Performs a practical check that recovery systems, backups, or failover procedures actually work. However, it does not most directly satisfy the requirement in this scenario: Mean time between failures measures expected operational time between failures..

D: Mean time between failures measures expected operational time between failures. This directly satisfies the requirement: Mean time between failures measures expected operational time between failures..

E: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery. However, it does not most directly satisfy the requirement in this scenario: Mean time between failures measures expected operational time between failures..

Learning point: Use MTBF when the key requirement is to measure reliability by average operating time between failures.

Question 16

During a data-center segment, Contoso Health is comparing several networking concepts. Which option is accurately characterized by this statement: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery.

1. Active-passive
2. MTTR
3. Cold site
4. Validation test
5. RPO

Correct answer: C

Why: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery. This directly satisfies the requirement: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery..

Option review:

A: One environment handles traffic while a standby becomes active after failure. However, it does not most directly satisfy the requirement in this scenario: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery..

B: Mean time to repair measures average time required to restore a failed component/service. However, it does not most directly satisfy the requirement in this scenario: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery..

C: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery. This directly satisfies the requirement: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery..

D: Performs a practical check that recovery systems, backups, or failover procedures actually work. However, it does not most directly satisfy the requirement in this scenario: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery..

E: Recovery point objective is the maximum acceptable data-loss window measured backward in time. However, it does not most directly satisfy the requirement in this scenario: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery..

Learning point: Use Cold site when the key requirement is to minimize DR-site cost when longer recovery time is acceptable.

Question 17

During a remote-site migration, Litware Manufacturing is comparing several networking concepts. Which option is accurately characterized by this statement: Provides some preinstalled infrastructure and data/services but requires additional activation work.

1. MTBF
2. Warm site
3. RTO
4. Active-active
5. MTTR

Correct answer: B

Why: Provides some preinstalled infrastructure and data/services but requires additional activation work. This directly satisfies the requirement: Provides some preinstalled infrastructure and data/services but requires additional activation work..

Option review:

A: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: Provides some preinstalled infrastructure and data/services but requires additional activation work..

B: Provides some preinstalled infrastructure and data/services but requires additional activation work. This directly satisfies the requirement: Provides some preinstalled infrastructure and data/services but requires additional activation work..

C: Recovery time objective is the target maximum time to restore a service after disruption. However, it does not most directly satisfy the requirement in this scenario: Provides some preinstalled infrastructure and data/services but requires additional activation work..

D: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure. However, it does not most directly satisfy the requirement in this scenario: Provides some preinstalled infrastructure and data/services but requires additional activation work..

E: Mean time to repair measures average time required to restore a failed component/service. However, it does not most directly satisfy the requirement in this scenario: Provides some preinstalled infrastructure and data/services but requires additional activation work..

Learning point: Use Warm site when the key requirement is to balance recovery speed and DR-site cost.

Question 18

During a operations lab, Woodgrove Bank is comparing several networking concepts. Which option is accurately characterized by this statement: Maintains ready-to-run infrastructure and current data for rapid recovery.

1. MTBF
2. RPO
3. Hot site
4. Active-passive
5. Active-active

Correct answer: C

Why: Maintains ready-to-run infrastructure and current data for rapid recovery. This directly satisfies the requirement: Maintains ready-to-run infrastructure and current data for rapid recovery..

Option review:

A: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: Maintains ready-to-run infrastructure and current data for rapid recovery..

B: Recovery point objective is the maximum acceptable data-loss window measured backward in time. However, it does not most directly satisfy the requirement in this scenario: Maintains ready-to-run infrastructure and current data for rapid recovery..

C: Maintains ready-to-run infrastructure and current data for rapid recovery. This directly satisfies the requirement: Maintains ready-to-run infrastructure and current data for rapid recovery..

D: One environment handles traffic while a standby becomes active after failure. However, it does not most directly satisfy the requirement in this scenario: Maintains ready-to-run infrastructure and current data for rapid recovery..

E: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure. However, it does not most directly satisfy the requirement in this scenario: Maintains ready-to-run infrastructure and current data for rapid recovery..

Learning point: Use Hot site when the key requirement is to achieve the fastest site-level recovery at higher cost.

Question 19

During a production maintenance window, Blue Yonder Airlines is comparing several networking concepts. Which option is accurately characterized by this statement: One environment handles traffic while a standby becomes active after failure.

1. Cold site
2. RPO
3. Active-passive
4. MTBF
5. RTO

Correct answer: C

Why: One environment handles traffic while a standby becomes active after failure. This directly satisfies the requirement: One environment handles traffic while a standby becomes active after failure..

Option review:

A: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery. However, it does not most directly satisfy the requirement in this scenario: One environment handles traffic while a standby becomes active after failure..

B: Recovery point objective is the maximum acceptable data-loss window measured backward in time. However, it does not most directly satisfy the requirement in this scenario: One environment handles traffic while a standby becomes active after failure..

C: One environment handles traffic while a standby becomes active after failure. This directly satisfies the requirement: One environment handles traffic while a standby becomes active after failure..

D: Mean time between failures measures expected operational time between failures. However, it does not most directly satisfy the requirement in this scenario: One environment handles traffic while a standby becomes active after failure..

E: Recovery time objective is the target maximum time to restore a service after disruption. However, it does not most directly satisfy the requirement in this scenario: One environment handles traffic while a standby becomes active after failure..

Learning point: Use Active-passive when the key requirement is to provide redundancy while keeping a secondary system on standby.

Question 20

During a new floor deployment, Contoso Health is comparing several networking concepts. Which option is accurately characterized by this statement: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure.

1. RTO
2. Warm site
3. Active-passive
4. Active-active
5. Cold site

Correct answer: D

Why: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure. This directly satisfies the requirement: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure..

Option review:

A: Recovery time objective is the target maximum time to restore a service after disruption. However, it does not most directly satisfy the requirement in this scenario: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure..

B: Provides some preinstalled infrastructure and data/services but requires additional activation work. However, it does not most directly satisfy the requirement in this scenario: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure..

C: One environment handles traffic while a standby becomes active after failure. However, it does not most directly satisfy the requirement in this scenario: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure..

D: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure. This directly satisfies the requirement: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure..

E: Provides basic facility space and utilities but little preinstalled equipment, yielding slower recovery. However, it does not most directly satisfy the requirement in this scenario: Multiple systems/sites serve production traffic simultaneously and can absorb a peer failure..

Learning point: Use Active-active when the key requirement is to use redundant systems that both handle live workload during normal operation.