List and briefly describe the 3 types of software

1 answer:

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1. A [disk cleanup] utility searches for and removes unnecessary files.
2. [Back-up] - allows users to copy selected files or an entire hard disk to another storage medium.
3. [Firefox] is a web browser- a platform, which is used to browse the information via the internet.

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Explanation:

It is the "?" character. When we type in the ? in the regular expression, then it means that it will be replaced by a single character. And when we type *, then we mean there can be multiple, and any number of characters. And this is what is meant by these two wildcard characters. Hence, the correct option here is ?.

Example: ?op can be top, pop, etc, and we can see here that, ? is replaced by only one character each time.

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answered in Image and explanation is given below.

Explanation:

CL is euqal to user permission on every file

ACL is equal to how permissions are defined for one life for example File a, read, write, execute.

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Follows are the matching to this question:

$Option \ a \to \ Option \ 3\\\\Option \ b \to \ Option \ 4\\\\Option \ c \to \ Option \ 1\\\\Option \ d \to \ Option \ 2\\$

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