Cyber.org Cybersecurity Unit 12 - 2.5 and 2.6

What is redundancy?

• Transferring all applications and data to the cloud

• When the overall system can tolerate the failure of a component without going into a dangerous state

• The duplication of components or functions of a system to increase reliability of the system

• The ability to maintain operations even with a disruption

Answer explanation

Redundancy refers to the duplication of components or functions of a system to increase reliability of the system, making it less prone to failure.

What is replication?

• Multiple users accessing the same system

• Multiple users inputting the same data

• Exact copies of a system

• Updating systems to run on newer hardware

Answer explanation

Replication refers to creating exact copies of a system, not multiple users accessing or inputting data, or updating systems to run on newer hardware.

What does RAID stand for?

• Repeated Algorithm Independent of Domain

• Redundant Array of Independent Disks

• Replication and Incremental Data

• Random Access of Integrated Data

Answer explanation

RAID stands for Redundant Array of Independent Disks, which is the correct choice.

What does UPS stand for?

• Uninterruptible Power Supply

• Universal Private System

• United Personable Style

• Under Protection and Security

Answer explanation

UPS stands for Uninterruptible Power Supply, providing continuous power to devices even during power outages.

Which of the following describes RAID-0?

• Mirroring

• Striping with parity

• Striping without parity

• Multiple recovery divides

Answer explanation

RAID-0 uses striping without parity, which means data is split across multiple disks without redundancy. This improves performance but offers no fault tolerance.

Which of the following describes RAID-1?

• Mirroring

• Striping with parity

• Striping without parity

• Multiple recovery divides

Answer explanation

RAID-1 is described as mirroring, where data is duplicated on two separate drives to ensure redundancy and fault tolerance.

Which of the following describes RAID-5?

• Mirroring

• Striping with parity

• Striping without parity

• Multiple recovery divides

Answer explanation

RAID-5 uses striping with parity, which means that data is divided into blocks and distributed across multiple disks with parity information to provide fault tolerance.

What are (NIC) Team interfaces?

• The virtual network adapters created when the team is made

• The network adapters that the team uses to communicate with the switch

• The GUI used to communicate with other users

• All of the above

Answer explanation

The NIC Team interfaces are the virtual network adapters created when the team is made, allowing for communication with the switch.

If a large amount of requests are sent to a server, ______ will occur, splitting the requests among multiple servers.

• load balancing

• server sharing

• repudiation

• NIC bonding

Answer explanation

If a large amount of requests are sent to a server, load balancing will occur, splitting the requests among multiple servers.

What can be used to provide clean battery backup power whenever power is interrupted or fluctuates outside of safe levels?

• UPS

• PDU

• USPS

• Dual Supply

Answer explanation

A UPS (Uninterruptible Power Supply) can provide clean battery backup power whenever power is interrupted or fluctuates outside of safe levels, making it the correct choice in this scenario.