What is the meaning of the term “copy-on-write”?
What will be an ideal response?
Copy-on-write refers to the method used to manage a process’s memory space when it forks a
copy of itself. At the moment of the fork, both process’s memory images are identical, but because
a fork is often used to start a new program, it may not be necessary to copy the entire memory
space to the new process. Each process is set to share the same memory space and the memory is
marked read-only. If either process later modifies the existing data, thus requiring each process to
have its own copy, only then will the entire memory space be copied to the child process (and the
read-only settings removed).
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What is the incorrect action and why does it occur?
Specification: Fill a character array with the uppercase alphabet (place A in [0], B in [1], etc.).
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The time it takes to select the correct platter and move the read/write head to the right track and sector is called the ________ time
A) retrieval B) positioning C) delay D) access
HTML is used
(a) to render Web pages. (b) to incorporate programs into a document. (c) to specify where a document is located on disk. (d) to specify the structure of a document.
To copy a non-adjacent group of files, press and hold the ________ key
A) C B) Tab C) Shift D) Ctrl