Question

An asynchronous call :

a) Returns immediately, without waiting for the I/O to complete
b) Does not return immediately and waits for the I/O to complete
c) Consumes a lot of time
d) Is too slow

Answer 1

An asynchronous call returns immediately, without waiting for the I/O to complete.

Step-by-step explanation:

An asynchronous call refers to a type of programming mechanism where the function does not wait for the I/O (Input/Output) operation to complete before moving on to the next line of code.

Option a) is correct. An asynchronous call returns immediately, without waiting for the I/O to complete. This allows the program to continue executing other tasks while waiting for the I/O operation to finish.

For example, when making an API request to retrieve data from a server, an asynchronous call allows the program to perform other operations while the request is being processed. This can improve the overall performance and responsiveness of the program.