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1. Which plan details the steps required to restore normal business operations after recovering from a disruptive event?
   A. Business Continuity Plan (BCP)
   B. Business Resumption Planning (BRP)
   C. Continuity of Operations Plan (COOP)
   D. Occupant Emergency Plan (OEP)

Correct Answer and Explanation: B. Answer B is correct; Business Resumption Planning details the steps required to restore normal business operations after recovering from a disruptive event.

Incorrect Answers and Explanations: A, C, and D. Answers A, C, and D are incorrect. Business Continuity Planning develops a long-term plan to ensure the continuity of business operations. The Continuity of Operations Plan describes the procedures required to maintain operations during a disaster. The Occupant Emergency Plan provides the response procedures for occupants of a facility in the event a situation poses a threat to the health and safety of personnel, the environment, or property.

1. Which metric describes how long it will take to recover a failed system?
   A. Minimum Operating Requirements (MOR)
   B. Mean Time Between Failures (MTBF)
   C. The Mean Time to Repair (MTTR)
   D. Recovery Point Objective (RPO)

Correct Answer and Explanation: C. Answer C is correct; the Mean Time to Repair (MTTR) describes how long it will take to recover a failed system. It is the best estimate for reconstituting the IT system so that business continuity may occur.

Incorrect Answers and Explanations: A, B, and D. Answers A, B, and D are incorrect. Minimum Operating Requirements describes the minimum environmental and connectivity requirements in order to operate computer equipment. Mean Time Between Failures quantifies how long a new or repaired system will run before failing. The Recovery Point Objective (RPO) is the moment in time in which data must be recovered and made available to users in order to resume business operations.

1. Which metric describes the moment in time in which data must be recovered and made available to users in order to resume business operations?
   A. Mean Time Between Failures (MTBF)
   B. The Mean Time to Repair (MTTR)
   C. Recovery Point Objective (RPO)
   D. Recovery Time Objective (RTO)

Correct Answer and Explanation: C. Answer C is correct; The Recovery Point Objective (RPO) is the moment in time in which data must be recovered and made available to users in order to resume business operations.

Incorrect Answers and Explanations: A, B, and D. Answers A, B, and D are incorrect. Mean Time Between Failures quantifies how long a new or repaired system will run before failing. Mean Time to Repair describes how long it will take to recover a failed system. Recovery Time Objective describes the maximum time allowed to recover business or IT systems.

1. Maximum Tolerable Downtime (MTD) is comprised of which two metrics?
   A. Recovery Point Objective (RPO) and Work Recovery Time (WRT)
   B. Recovery Point Objective (RPO) and Mean Time to Repair (MTTR)
   C. Recovery Time Objective (RTO) and Work Recovery Time (WRT)
   D. Recovery Time Objective (RTO) and Mean Time to Repair (MTTR)

Correct Answer and Explanation: C. Answer C is correct; the Recovery Time Objective (RTO, the time it takes bring a failed system back online) and Work Recovery Time (WRT, the time required to configure a failed system) are used to calculate the Maximum Tolerable Downtime. RTO + WRT = MTD.

Incorrect Answers and Explanations: A, B, and D. Answers A, B, and D are incorrect. Maximum Tolerable Downtime does not directly use Recovery Point Objective or Mean Time to Repair as metrics.

1. Which level of RAID does NOT provide additionally reliability?
   A. RAID 1
   B. RAID 5
   C. RAID 0
   D. RAID 3

Correct Answer and Explanation: C. Answer C is correct; RAID 0 provides only striping, and is used simply for performance purposes. It offers no additional data redundancy or resiliency.

Incorrect Answers and Explanations: A, B, and D. Answers A, B, and D are incorrect. RAIDs 1, 3, and 5 all provide reliability gains through either mirroring or parity measures.