Not sure if your asking what certain application or the definition. But the definition: A security practice that blocks or restricts unauthorized applications from executing in ways that put data at risk.
Answer:
A. delete the message without opening it.
Explanation:
Never open emails you don't know who sent it, it could be a hacker trying to get your personal/financial information.
Answer:
It listens for sound intensity
Explanation:
It listens for the sound intensity and loudness. As the intensity varies the background color changes as well.
1. Exactly three 1 s?

2. At most three
?

3. At least three 1 s?
Take a shortcut by using the previous answer:
4. An equal number of
and
?

<h3>
What is strings ?</h3>
The C programming language includes a set of functions executing operations on strings in its standard library. Different operations, such as copying, concatenation, tokenization, and searching are supported.
In C programming, a string exists as a sequence of characters terminated with a null character \0. For example char c[] = "c string"; When the compiler discovers a sequence of characters enclosed in the double quotation marks, it appends a null character \0 at the end by default. The C language does not have a distinctive "String" data type, the way some other languages such as C++ and Java do. Instead, C stores strings of characters as arrays of chars, completed by a null byte.
1. Exactly three 1 s?

2. At most three
?

3. At least three 1 s?
Take a shortcut by using the previous answer:
4. An equal number of
and
?

To learn more about strings refer to:
brainly.com/question/27251062
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