When applied to instance variables, the ________________ visibility modifier enforces encapsulation.
a) static
b) final
c) public
d) private
e) none of the above
d) private
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Which statement is false?
a) In a tightly packed binary tree, each level contains about twice as many elements as the previous level. b) When searching a tightly packed 1,000,000-element binary search tree, a maximum of approximately 20 comparisons need to be made. c) The level-order traversal of a binary tree visits the nodes of the tree row-by-row starting at the root node level. d) Searching a binary tree for a value that matches a key value is slow for tightly packed trees.
If a class contains a pointer to dynamically allocated memory, which of the following defaults is likely to be unacceptable?
a. copy constructor b. destructor c. operator= d. all of the above e. none of the above
Describe the functionality required of mobile DBMS.
What will be an ideal response?
Answer the following statements true (T) or false (F)
1. A cookie is a text file that resides on the server of a web site. 2. Cookies should be avoided because they can cause security breaches during the transmission of a web page from server to client. 3. The time() function returns the current time measured in the number of seconds since January 1 of the current year. 4. It is possible to set a cookie without an expiration date. 5. The setcookie() function is used to define a cookie.