Question

2.
is to
A common way to implement
make it a blocking system call.
(a) CONNECT
(b)
DISCONNECT
(c) SEND
(d) LISTEN​

Answer 1

Answer:

A blocking system call is one that must wait until the action can be completed. read() would be a good example - if no input is ready, it'll sit there and wait until some is (provided you haven't set it to non-blocking, of course, in which case it wouldn't be a blocking system call).