2.5

Question 1

Involves having duplicate systems, components, or processes in place to ensure continuous operation and minimize the impact of failures or disruptions.

Answer 1

Redundancy

Question 2

Refers to spreading critical systems, data, or resources across multiple physical locations, often in different regions or countries.

Answer 2

Geographic dispersal

Question 3

Refers to a physical or logical storage device used to store data, applications, or operating systems.

Answer 3

Disk

Question 4

Is a data storage technology that combines multiple disk drives into a single logical unit to improve performance, reliability, or both. RAID levels include configurations such as RAID 0 (striping), RAID 1 (mirroring), RAID 2 (bit-level error-correcting code), RAID 3 (byte-striped with error check), RAID 4 (dedicated parity drive), RAID 5 (block-striped with error check), and others.

Answer 4

Redundant Array of Independent (or Inexpensive) Disks (RAID) levels

Question 5

When a storage element is connected by multiple adapters, this provides redundancy in the event of a problem with one of the adapters. This is referred to as a _____________ connection.

Answer 5

Multipath

Question 6

Distributes incoming network traffic across multiple servers to optimize performance, maximize availability, and prevent overload on individual components.

Answer 6

Load balancers

Question 7

Is the infrastructure element that connects all the IT components in the enterprise.

Answer 7

Network

Question 8

Involves combining multiple network interface cards (NICs) on a single system to increase bandwidth, improve fault tolerance, and provide redundancy in network connections.

Answer 8

Network Interface Card (NIC) teaming

Question 9

is a backup power system that provides emergency power to connected devices in case of power outages or fluctuations.

Answer 9

Uninterruptible Power Supply (UPS)

Question 10

Is a device designed to handle the electrical power for server racks.

Answer 10

Managed power distribution units (PDUs)

Question 11

Is a system where two independent power supply units, either capable of handling the load, are used.

Answer 11

Dual Supply

Question 12

Is a simple form of redundancy-that is, having another copy of something should something happen to the original.

Answer 12

Replication

Question 13

Is a dedicated network that provides access to consolidated, block-level storage resources to multiple servers or systems.

Answer 13

Storage Area Network (SAN)

Question 14

Is a software-based emulation of a physical computer system that runs applications or operating systems.

Answer 14

VM (Virtual Machine)

Question 15

All files and software are copied onto the storage media.

Answer 15

full backup

Question 16

Is a variation on a differential backup. Backups only files that have changed since the last full backup or incremental backup occured, thus requiring fewer files to be backed up.

Answer 16

incremental backup

Question 17

Is a copy of a virtual machine at a specific point in time.

Answer 17

snapshot

Question 18

Only the files that have changed since the last full backup was completed are backed up.

Answer 18

differential backup

Question 19

Are an older form of data storage mechanism, and they are characterized by their sequential read/write access. A ___________ system stores everything in one long structure, requiring you to physically move the _______ if you wish to access an element halfway through the storage.

Answer 19

tape drive

Question 20

Refers to either a physical hard drive with spinning platters or a solid-state memory device.

Answer 20

disk

Question 21

Is the use of a network connection to attach external storage to a machine.

Answer 21

Network Attached Storage (NAS)

Question 22

Is a dedicated network that connects compute elements to storage elements. This network can be optimized for the types of data storage needed, in terms of size and date rates in terms of format, and in terms of access criteria.

Answer 22

Storage Area Network (SAN)

Question 23

Backups that are stored in a location that is accessible via the Internet.

Answer 23

online backup

Question 24

Backups that are stored on an offline system that is not accessible via the Internet.

Answer 24

offline backup

Question 25

Backups that are stored in a location separate from the system being backed up.

Answer 25

offsite storage

Question 26

System items that are not permanent and can change.

Answer 26

Non-persistence

Question 27

The ability to recover to a known state is referred to as _____________

Answer 27

Revert to known state

Question 28

A bootable flash drive or DVD source that contains a complete bootable image of an OS.

Answer 28

Live boot media

Question 29

The ability to maintain the availability of data and operational processing (service) despite a disrupting event.

Answer 29

High availability

Question 30

A design element that enables a system to accommodate larger workloads by adding resources either making hardware stronger (scaling up_ or adding additional nodes (scaling out).

Answer 30

Scalability

Question 31

Having _________ in technologies, vendors, processes and controls can assist in resiliency through differences in failure modes.

Answer 31

Diversity