Cybersecurity Practice Test 10

False

(true or false) In a differential backup strategy, restoring data from backup requires only a working copy of the last full backup.

True

(true or false) The term "Multipath I/O" refers to a framework that improves fault tolerance and performance by enabling additional, alternate routes for data that is being transferred to and from storage devices.

NAS

A dedicated storage appliance that can be added to a local network is known as: -SDP -NAS -EDR -SSD

Snapshot

A file-based representation of the state of a virtual machine at a given point in time is called: -Restore point -Shadow copy -Snapshot -System image

Load balancer

A network hardware or software solution designed for managing the optimal distribution of workloads across multiple computing resources is known as: -Content filter -Power Distribution Unit (PDU) -Load balancer -Domain controller

IoT

An emerging field of innovative technologies, such as wearable tech or home automation is known as: -SoC -NFC -IoT -ESN

System image

An exact copy of the entire state of a computer system is known as: -System image -Last known-good configuration -Restore point -Mirrored volume

Raspberry Pi Arduino Field Programmable Gate Array (FPGA)

Examples of embedded systems include: (Select all that apply) -Android OS -Raspberry Pi -iOS -Arduino -Field Programmable Gate Array (FPGA) -Mainframe computer system

-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)

Hardware RAID Level 10 (a.k.a. RAID 1+0): (Select 3 answers) -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) -Requires a minimum of 5 drives to implement -Offers increased performance and fault tolerance (failure of one drive in each mirrored pair of disk drives does not destroy the array) -Requires a minimum of 3 years to implement -Continues to operate in case of failure of more than 2 drives

-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 1: (Select 3 answers) -Requires at least 2 drives to implement -Is also known as disk striping -Offers improved performance in comparison to RAID 0 -Requires at least 3 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

-Requires at least 3 drives to implement -Offers increase performance and fault tolerance (single drive failure does not destroy the array and lost data can be re-created by the remaining drives)

Hardware RAID Level 5: (Select 2 answers) -Requires at least 2 drives to implement -Continues to operate in case of failure -Requires at least 3 drives to implement -Offers increase performance and fault tolerance (single drive failure does not destroy the array and lost data can be re-created by the remaining drives) -Requires at least 4 dries to implement

-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 re-created by the remaining drives

Hardware RAID Level 6: (Select 2 answers) -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 re-created by the remaining drives -Requires at least 3 drives to implement -Continues to operate in case of failure of more than 2 drives -Requires at least 5 drives to implement

-All copies of incremental backups made since the last full backup -Copy of the last full backup

Restoring data from an incremental backup requires: (Select 2 answers) -Copy of the last incremental backup -All copies of differential backups made since the last full backup -Copy of the last differential backup -All copies of incremental backups made since the last full backup -Copy of the last full backup

Scalability

The capability of a hardware or software system to process increasing workload without decrease in performance is known as: -Redundancy -Multitasking -Scalability -Fault tolerance

NIC teaming

The process of combining multiple physical network adapters into a single logical interface for increased throughput and redundancy is called: -Device pairing -Multipath I/O -Route aggregation -NIC teaming

UPS

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

Snapshot backups

What type of backups are commonly used with virtual machines? -Incremental backups -Snapshot backups -Tape backups -Differential backups

Live boot media

Which of the answers listed below refers to a type of removable storage media that contains a portable, non-persistent OS? -Flash memroy -Primary storage -Live boot media -Hybrid drive

SCADA ICS

Which of the following answers refer to industrial and manufacturing control systems? (Select 2 answers) -EDR -CMS -SCADA -ICS -CCTV

Last known-good configuration Live boot media Known state reversion

Which of the following answers refer to the concept of non-persistence? (Select 3 answers) -Last known-good configuration -System image -Live boot media -Journaling -Known state reversion

Managed Power Distribution Unit (Managed PDU)

Which of the following answers refers to a device designed to distribute (and monitor the quality of) electric power to multiple outlets? -Power Supply Unit (PSU) -Main Distribution Frame (MDF) -Managed Power Distribution Unit (Managed PDU) -Intermediate Distribution Frame (IDF)

Magnetic tapes

Which of the following answers refers to a sequential-access backup media? -Magnetic tapes -Disk drives -Optical discs -Flash media

Backup generator

Which of the following power redundancy solutions would be best suited for providing long-term emergency power during an unexpected main power source outage? -Dual-power supply -Standby UPS -Backup generator -Managed PDU

Dual-power supply

Which of the following would add power redundancy on a server box? -Standby UPS -Backup generator -Managed PDU -Dual-power supply

SAN

a dedicated local network consisting of devices providing data access is called: -SDN -NAS -iSCSI -SAN