The numbers 3, 2, 5, 7 are enqueued in a queue in that order, then three numbers are dequeued, and finally 3, 7, 9, 4 are enqueued in that order. What is the first number in the queue (the next number to be dequeued)?
a. 3
b. 7
c. 9
d. 4
b. 7
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List five questions you should ask yourself while debugging?
What will be an ideal response?
Case-Based Critical Thinking Question ? Sophia has a website that promotes her hairstyling business. She wants to expand her new customer contact form with a few additional questions. Sophia wants to include a single set of buttons asking about different aspects of the client's hair, including length, color, and curl. To allow clients to select more than one box in the set, she should use __________.
A. check boxes B. option buttons C. either a or b D. neither a nor b
In spite of all attempts to protect networks, systems do fail, and when you rebuild a new system, you must have a recent one of these in order to get back up and running.
A. caching B. resource availability C. high availability D. data backup
If you provide an empty method within an abstract class, the method is an abstract method even if you do not explicitly use the keyword ____ when defining the method.
A. virtual B. implements C. abstract D. extends