Answer:
Document symbol
Explanation:
This symbol is shaped like a rectangle with its bottom side in a wave, and it is used to represent the input or output of a document. For instance, this symbol might be used to outline a document input, such as receiving an email or report.
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A. Parabolic appears correct.
PKI trust model that should be used, is a distributed trust model.
- A distributed trust is a trust model that gives power to different source while taking the power away from a single source and thereafter, shares that responsibility to the wide range of sources. It is important as it allows trust to flows through network, marketplaces and forums.
- With the use of this distributed trust model, Sigma Technology can have multiple CAs in different locations to work on behalf of the company. And even if one is absence, other CAs can still issue certificate without any hindrances.
Conclusively, we can say that PKI trust model that should be used is a distributed trust model.
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Answer:
c) search operators
Explanation:
Words or symbols that help you narrow down your search are called search operators. This ultimately implies that, search operators are commands and special characters (words or symbols) which help users to filter and refine their search engine results by making the search more precise and specific in nature. Thus, search operators only provide search engine results that are relevant to what a user is searching for or it narrow down the focus of a search.
Hence, search operators comprises of commands and special characters (words or symbols) such as AND, OR, NOT, "", -, +, *, .., :, etc used for narrowing down search engine results.
For instance, typing "file.mp3" in a search engine would only present results that are in mp3 formats.
