CompTIA A+ Certification 220-1001: The Total Course - RAID

The video tutorial explains RAID (Redundant Array of Independent Disks), a method of organizing multiple disk drives to improve speed and data redundancy. It covers various RAID levels, including RAID 0 (striping), RAID 1 (mirroring), RAID 5 (striping with parity), RAID 6, and advanced levels like RAID 10 and RAID 0+1. The tutorial also discusses how to implement RAID using hardware or software and touches on proprietary RAID systems from companies like Synology and Microsoft.

What was the primary motivation behind the development of RAID?

• To improve the aesthetic design of computers

• To enhance the portability of storage devices

• To increase the storage capacity of a single drive

• To reduce the cost of disk drives

Which RAID level is known for providing speed but no data safety?

• RAID 0

• RAID 6

• RAID 1

• RAID 5

What is the main advantage of RAID 1?

• Increased speed

• Data redundancy

• Higher storage capacity

• Reduced cost

How many drives are required at a minimum for RAID 5?

• Four

• Five

• Three

• Two

What is the key benefit of RAID 6 over RAID 5?

• Simpler setup process

• Lower cost

• Ability to lose up to two drives

• Faster data access

Which RAID configuration combines both striping and mirroring?

• RAID 5

• RAID 1

• RAID 10

• RAID 0

What is a potential downside of RAID 10?

• Losing one complete mirrored pair can cause data loss

• It is slower than RAID 0

• It offers no data redundancy

• It requires a minimum of six drives

How can RAID be implemented?

• Through both hardware and software

• Through software only

• Through cloud services

• Through hardware only

What is a characteristic of proprietary RAID systems?

• They are universally compatible

• They are specific to certain companies

• They are open-source

• They are less efficient than standard RAID

Which company offers a proprietary RAID system known as Storage Spaces?

• Apple

• Google

• Microsoft

• Amazon