To test whether a character is one of ‘0’, ‘1’, ‘2’, ‘3’, ‘4’, ‘5’, ‘6’, ‘7’, ‘8’, or ‘9’, use the _______ standard library function.
a. isnumber
b. isnotalpha
c. isnumeric
d. isdigit
e. all of the above
D
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In a linked list as defined in the text, the pointer in the last node in the list should always point to _________.
Fill in the blank(s) with the appropriate word(s).
Create a program that demonstrates the functions of the LinkedQueue class.
For this project, we will create a data structure known as a queue. A queue can be thought of as a line. Items are added at the end of the line and are taken from the front of the line. You will create a class LinkedQueue based on one of the linkedlist classes given in this chapter. It should have private attributes for • front—a reference to the first node in the linked list of queue items • count—the number of items in the queue and the following operations: • addToQueue(item)—adds item to the end of the queue. (Add it at the end of the linked list.) • removeFromQueue()—removes the first item from the queue and returns it. If the queue is empty, returns null. • isEmpty—returns true if the queue contains no items; otherwise, returns false. This program is just a simple modification of the existing programs in this chapter. The solution is loosely based on the generic version of the linked list given in Listing 12.12.
Describe Nano Server.
What will be an ideal response?
____ is a form of social engineering whereby an intruder pretends to be a legitimate entity and contacts unwary users asking them to reconfirm their personal and/or financial information.
A. Spoofing B. Phishing C. Impersonating D. Acting