Which of the following statements about stacks is incorrect?

(a) stacks can be implemented using linked lists.
(b) stacks are first in, first-out (FIFO) data structures.
(c) new nodes can only be added to the top of the stack.
(d) the last node (the bottom) of a stack has a null (zero) link.

(b) stacks are first in, first-out (FIFO) data structures.

Computer Science & Information Technology

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The 0s and 1s used to represent digital data are referred to as _________ digits.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology

What TCP port is utilized by an SSH server listening for connections?

A. 20 B. 21 C. 22 D. 23

Computer Science & Information Technology