CDCP Business Continuity and Disaster Recovery

Question 1

What does Recovery Time Objective (RTO) define in a data center disaster recovery plan?

Accepted Answer

The maximum acceptable duration to restore normal operations after a disruption

Answer

RTO defines how long a business can tolerate a system being unavailable after a disruption. It sets the target time limit within which services must be restored. RPO (Recovery Point Objective) is the related metric that addresses acceptable data loss, not RTO.

Question 2

A data center has an RPO of 4 hours. What does this mean for its recovery strategy?

Accepted Answer

No more than 4 hours' worth of data may be lost in a disaster

Answer

Recovery Point Objective (RPO) defines the maximum acceptable amount of data loss measured in time. An RPO of 4 hours means backups or replication must occur at least every 4 hours so that no more than 4 hours of data is ever at risk of permanent loss.

Question 3

Which disaster recovery site type allows the fastest failover because it mirrors the production environment with live, synchronized data?

Accepted Answer

Hot site

Answer

A hot site is a fully operational duplicate of the primary data center with identical hardware, software, and continuously replicated data. Failover can occur in minutes. A warm site has hardware but requires data restoration. A cold site is just space and power with no pre-installed equipment.

Question 4

In a BC/DR context, what is the primary purpose of conducting a tabletop exercise?

Accepted Answer

To simulate disaster scenarios through guided discussion without disrupting live systems

Answer

A tabletop exercise is a discussion-based session where key personnel walk through a simulated disaster scenario to identify gaps in plans and decision-making processes — without touching live infrastructure. It is lower cost and lower risk than a full failover test or simulation.

Question 5

Which metric measures the average time a component is expected to operate before failing?

Accepted Answer

Mean Time Between Failures (MTBF)

Answer

MTBF (Mean Time Between Failures) measures the average operational time between failures and is used to assess equipment reliability. MTTR measures how long it takes to repair a failed component. Both together inform availability calculations: Availability = MTBF / (MTBF + MTTR).

CDCP - Certified Data Centre Professional Practice Test

CDCP - Certified Data Centre Professional Practice Test

CDCP Business Continuity and Disaster Recovery