What is a differencing disk and when is it used?

What will be an ideal response?


When you need to create many virtual machines, differencing disks can be used to minimize the amount of disk space used. Differencing disks have a single parent disk that does not change. All changes are stored in the differencing disk and there can be multiple differencing disks that attach to a single parent.

Computer Science & Information Technology

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The primary key is an important field in an Access table. Please describe a primary key. Does Access create the primary key or can you create it yourself?

What will be an ideal response?

Computer Science & Information Technology

Consider paging address translation by direct mapping. Given the base address, a, in the page table origin register, virtual address v = (p, d) and an entry p’ (in the page table starting at address a) for the page frame corresponding to virtual page p, what is the real address corresponding to v?

a) p’ * d b) p’ concatenated with d c) (a + p) * d d) (a + p) concatenated with d

Computer Science & Information Technology

An opening in a computer tower used for the installation of equipment such as a hard drive is called a port.

a. true b. false

Computer Science & Information Technology

In the figure above, any blue pixel less than _____ on This Layer are not visible.

A. 18 B. 266 C. 255 D. 100

Computer Science & Information Technology