Answer:
List items are usually accessed using the indexing operator.
Explanation:
Depends on the language, and what you mean with extracting? Do you mean accessing or removing?
Most common PC operating systems
Answer: Federation
Explanation:
In multiple enterprises there are number of authentication processes to access resources and information so in order to avoid a large number of authentications we have a process called federation whereby all the authentication and authorization processes are passes from one system to the other within the enterprise.
