T-Level - RC-3 - Wk3 - Plenary

What is the primary advantage of using an SSD over an HDD?

• A) Higher storage capacity
• B) Faster data access speeds
• C) Lower cost per GB
• D) Requires defragmentation

Answer explanation

SSDs (Solid-State Drives) use flash memory to store data, which allows for faster data retrieval compared to HDDs (Hard Disk Drives), which rely on mechanical moving parts. SSDs are quicker, more reliable, and less prone to failure due to the lack of moving components.

Which of the following storage methods is typically used in enterprise environments for high-speed, high-volume data storage?

• A) Network-Attached Storage (NAS)
• B) Solid-State Drive (SSD)
• C) Storage Area Network (SAN)
• D) Portable Hard Drive

Answer explanation

A SAN (Storage Area Network) is designed for high-performance, high-volume data storage in enterprise environments. It connects multiple storage devices to multiple servers, providing fast access to data at the block level, often used for databases or virtualized environments.

What is a key characteristic of Network-Attached Storage (NAS)?

• A) Directly attached to a single computer
• B) Uses block-level data storage
• C) Accessible over a network by multiple users
• D) Requires an internet connection to function

Answer explanation

NAS (Network-Attached Storage) is a storage system that connects to a network, allowing multiple users and devices to access files simultaneously. It’s designed for sharing files and data, making it ideal for collaborative environments.

A ______ is a type of storage system that provides shared file storage and is typically used for collaborative work across a network.

Answer explanation

NAS is designed for file storage that can be shared by multiple users on a network. It allows for centralized data management, making it easier for teams to access and collaborate on files remotely.

Data stored in ______ format is structured, making it easier to query and manage within relational databases.

Answer explanation

Data stored in a database format is typically structured in tables with rows and columns. This structure allows for efficient querying, data management, and organization, making it ideal for relational database systems like MySQL, PostgreSQL, or Microsoft SQL Server.

HDDs store data on spinning ______, while SSDs use flash memory to store data electronically.

Answer explanation

HDDs (Hard Disk Drives) use spinning platters to store data magnetically, which means data access is slower due to the physical movement of the parts. In contrast, SSDs (Solid-State Drives) use flash memory, which allows for faster data access and no moving parts, making them quicker and more durable than HDDs.

NAS devices are designed primarily for a single user's direct access rather than multiple users over a network.

• True

• False

Answer explanation

NAS devices are designed for multiple users to access data over a network, not just for single-user access. They are often used in businesses or home environments to share files and data among different users or devices.

File servers typically allow multiple users to access shared files within an organization.

• True
• False

Answer explanation

A file server is a system that provides a central location to store files and allows multiple users to access those files over a network. It is commonly used in organizations for collaborative work, allowing employees to share documents and other resources.

SANs are usually used in home networks because they are simple and cost-effective.

• True
• False

Answer explanation

SANs (Storage Area Networks) are complex and expensive storage systems typically used in enterprise environments where high performance and large-scale data storage are required. They are more costly and harder to set up compared to simpler storage solutions like NAS, making them unsuitable for home networks.