Grade 10 Intro to CSS

What are the main types of storage devices?

• Cache memory (e.g., CPU cache)

• Tertiary storage (e.g., cloud storage)

• The main types of storage devices are primary storage (e.g., RAM) and secondary storage (e.g., hard drives, SSDs, USB flash drives, optical discs).

• Virtual storage (e.g., software-defined storage)

What is the primary function of a hard disk drive (HDD)?

• To display graphics on the monitor.

• To power the computer's CPU.

• To increase internet speed.

• To store and retrieve digital data.

How does a solid-state drive (SSD) differ from an HDD?

• HDDs are faster and more reliable than SSDs.

• SSDs are cheaper and have larger storage capacities than HDDs.

• SSDs use magnetic disks while HDDs use flash memory.

• SSDs are faster, more durable, and use flash memory, while HDDs use spinning disks and are slower.

What does NAS stand for, and what is its purpose?

• Network Attached System

• Network Application Service

• Network Attached Storage

• Network Access System

What does SAN stand for, and how is it used?

• Storage Area Network

• System Area Network

• Secure Area Network

• Storage Access Node

Compare the advantages of NAS and SAN.

• SAN is less reliable than traditional hard drives.

• NAS is only suitable for large enterprises.

• NAS is simpler and cost-effective for file sharing, while SAN offers high performance and reliability for critical applications.

• NAS provides better performance than SAN for all applications.

What is RAID, and why is it used in storage systems?

• RAID is a type of file compression software.

• RAID is a single disk drive used for data storage.

• RAID is a backup solution for cloud storage.

• RAID is a technology that combines multiple disk drives for redundancy and performance.

Explain RAID 0 and its benefits.

• RAID 0 requires a minimum of three drives to function.

• RAID 0 is primarily used for data backup and recovery.

• RAID 0 improves performance by striping data across multiple drives, allowing for faster read and write speeds.

• RAID 0 provides data redundancy by mirroring data across drives.

What are the characteristics of RAID 1?

• RAID 1 does not provide any data redundancy.

• RAID 1 uses striping for improved write performance.

• RAID 1 provides data redundancy through mirroring, improved read performance, and fault tolerance.

• RAID 1 requires at least three disks for operation.

Describe RAID 5 and its advantages.

• RAID 5 provides data redundancy, improved read performance, and efficient storage utilization, making it a popular choice for fault tolerance and performance.

• RAID 5 offers no data redundancy and is only suitable for small storage needs.

• RAID 5 requires a minimum of six disks to function effectively.

• RAID 5 is primarily used for video editing and high-resolution graphics.