What are the differences between a stack and a queue?
What will be an ideal response?
A queue data structure allows nodes to be removed only from the head of the queue and inserted only at the tail of the queue. A queue is referred to as a first-in, first-out (FIFO) data structure. A stack data structure allows nodes to be added to the stack and removed from the stack only at the top. A stack is referred to as a last-in, firstout (LIFO) data structure.
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Braces { } are used to indicate:
A) either/or alternative. B) optional. C) repetitive elements. D) selection.
Answer the following statements true (T) or false (F)
1. A programmer can use inheritance with an existing library for which only the header file and binary are available, to derive a class more suitable to her purpose. 2. You never put a declaration of an inherited member in the derived class. 3. The one exception to this rule is the need to redefine a base class member function in the derived class. 4. An object of a derived class type has exactly one type, the type with which it was declared. 5. If a base class constructor is not called explicitly in the definition of a derived class constructor, an error results.
What does the book recommend for HSL in unsupported browsers?
a. Do nothing and let page look fairly different in these versions. b. Specify colors with hexadecimal or RGB. c. Provide fallback color declaration. d. Mimic alpha transparency with proprietary IE CSS declarations. e. All of the above. f. None of the above.
Routers function both as a switch and a(n):
A) ethernet B) hub C) NIC D) gateway