Visiting all nodes of a binary tree in some methodical fashion is known as
A) climbing the tree.
B) traversing the tree.
C) walking through tree.
D) branching out along the tree.
E) None of the above
B) traversing the tree.
Computer Science & Information Technology
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According to the OSI model, at which of the following layers is data encapsulated into a packet?
A. Layer 2 B. Layer 3 C. Layer 4 D. Layer 5 E. Layer 6
Computer Science & Information Technology
What is the error in the following pseudocode?
``` Declare String user Display "How many widgets do you want to buy?" Input user ``` a. user is an invalid variable name for this code. b. The Input statement should be the first statement. c. user has been used before it is declared. d. The input is a number, not a string.
Computer Science & Information Technology