Storage media：练习题

Which magnetic storage medium is still widely used for the specific purpose of long-term archiving due to its high capacity and low cost per gigabyte?

A server room uses magnetic hard disks for daily operations but also utilizes magnetic tape. Which statement best explains the role of magnetic tape in this environment?

A data center requires a secondary storage medium for the sequential backup of massive amounts of data at a low cost per gigabyte. Which medium is most appropriate for this specific purpose?

Which storage medium is most commonly used for making long-term, offline backups of extremely large amounts of data in a corporate environment?

Which of the following best describes the physical nature of xD and CFast media?

Identify one common use for magnetic tape as a storage medium in a large business environment.

A company needs to choose a storage solution for distributing 40 GB of high-definition training videos to employees. Identify the most suitable optical storage medium for this purpose and explain why it is preferred over a standard DVD.

Explain the technical reasons why a Blu-ray disc is able to store significantly more data than a standard DVD, despite both sharing the same physical dimensions.

Optical storage media are often used for distributing software or backing up personal data.

(a) Name two different types of optical discs. [2]
(b) Describe how data is physically stored on and read from an optical disc. [1]

Many computer users choose different storage media based on their specific needs.

(a) State one advantage and one disadvantage of using a USB flash drive for transferring work files between school and home. [2]
(b) Identify a specific type of solid-state media that is commonly used in a digital camera to store photographs. [1]