A composite primary key<span> is a set of several primary </span>keys<span> that, together, uniquely identifies each record.</span>
Primary keys are used as identifiers of composite entities. In this case each primary key combination is allowed only once in the *:* relationship.
Other case where primary keys are used is as identifiers of weak entities, where the weak entity has a strong identifying relationship with the parent entity.
Answer: The Print Area function in Excel allows you to print part of a spreadsheet rather than the full sheet
Explanation:
In the case above, the company can prevent this from happening in the public Internet through the Use certificate pinning.
<h3>Should a person use certificate pinning?</h3>
Mobile applications are known to be one that often make use of certificate or also public key pinning so that they can be able to make sure that communications are secure.
Hence it is one that is often implemented if the developer of the application is said to be require to validate the remote host's identity or if operating in a harsh environment.
Hence, Certificate pinning hinders which certificates are considered valid for a any kind of website, and as such, In the case above, the company can prevent this from happening in the public Internet through the Use certificate pinning.
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