Answer:
Image result for what is the name of the fields in an x.509 digital certificate that are used when the parties negotiate a secure connection?
Common applications of X. 509 certificates include SSL/TLS and HTTPS for authenticated and encrypted web browsing, signed and encrypted email via the S/MIME protocol, code signing, document signing, client authentication, and government-issued electronic ID.
Explanation:
The correct answer is D. All of the above. Each of these extensions are able to execute files depending on what type of information the file contains.
Answer:
Multitasking is a process in which we do multiple task at a time.
In computing system, multitasking is the concept of performing different types of multiple task and process over a certain period of time by executing simultaneously.
Operating system basically allow various task to run simultaneously by the user. In an operating system, each task consume storage system and all the other resources.
Multitasking function facilitate memory isolation in the processor and also supported different levels of security system in the operating system. For example, "a programmer working on any program in a system and as well as listening the music then, it perform multiple task at the same time".
