CompTIA Security+ SY0-701 Exam - Resilience & Recovery Quiz (15)

Hardware RAID Level 0:

requires a minimum of 2 drives to implement; is also known as disk striping; decerases reliability (failure of any disk in the array results in the loss of all data in the array); is suitable for systems where performance has higher priority than fault tolerance

Hardware RAID Level 1:

requires at least 2 drives to implement; offers improved reliability by creating identical data sets on each drive (failure of one drive does not destroy the array as each drive contains identical copy of the data); is also referred to as disk mirroring

Hardware RAID Level 5

requires at least 3 drives to implement; offers increased performance and fault tolerance (single drive failure does not destroy the array and lost data can be recreated by the remaining drives); is also known as disk striping with parity

Hardware RAID Level 6

requires at least 4 drives to implement; offers increased performance and fault tolerance (failure of up to 2 drives does not destroy the array and lost data can be recreated by the remaining drives); is also known as disk striping with double parity

Hardware RAID Level 10 (a.k.a. RAID 1+0):

requires a minimum of 4 drives to implement; is referred to as stripe of mirrors, i.e., a combination of RAID 1 (disk mirroring) and RAID 0 (disk striping); offers increased performance and fault tolerance (failure of one drive in each mirrored pair of disk drives does not destroy the array)

Which of the following RAID levels does not offer fault tolerance?

RAID 0

Which of the answers listed below refers to the primary function of load balancing?

distributes workload across multiple servers for improved performance

Which of the following is the primary function of clustering?

groups servers together to provide high availability and fault tolerance

Which of the terms listed below refers to a duplicate of the original site, with fully operational computer systems as well as near-complete backups of user data?

hot site

Which of the following terms refers to an alternate site that provides some pre-installed hardware and software and might have partial data backups, but it is not fully operational and requires additional configuration before use?

warm site

A disaster recovery facility that provides only the physical space for recovery operations is known as:

cold site

Which alternate site is the least expensive to implement?

Cold site

Which alternate site allows for the fastest disaster recovery?

Hot site

What is the name of a U.S. government initiative that provides a set of procedures and plans that an organization can implement to ensure continued performance of its essential functions during unexpected events?

COOP

Which of the answers listed below refers to a simulated scenario conducted in a controlled environment, typically involving discussions and planning around hypothetical security incidents?

tabletop exercise

The process of switching to a redundant or standby system upon detecting a disruption in the primary system is called:

fail over

Which of the following answers refers to a more realistic scenario that tests cybersecurity incident response by mimicking actual attacks?

simulation

Which of the solutions listed below provides redundancy and fault tolerance by dividing tasks into smaller subtasks and distributing them across multiple systems to be executed simultaneously?

parallel processing

A file-based representation of the state of a virtual machine at a given point in time is referred to as:

snapshot

What type of backups are commonly used with virtual machines?

snapshot backups

Which of the following terms refers to a backup strategy that relies on creating and maintaining copies of data in real-time or near real-time on a separate system?

replication

A technique that allows to recover changes that occurred since the last backup in the event of a system crash is known as:

journaling

Which of the answers listed below refers to a device designed to supply (and monitor the quality of) electric power to multiple outlets?

PDU

What is the name of a device that can provide short-term emergency power during an unexpected main power source outage?

UPS

Which of the following power redundancy solutions would be best suited for providing long-term emergency power during an unexpected main power source outage?

backup generator