____ database management systems were introduced as the means by which programmers can store objects and complex datatypes within a database.

A. Flat
B. Object-oriented
C. Relational
D. Network

Answer: B

Computer Science & Information Technology

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If this function returns true, this function also returns:

``` 1 bool search( Node ptr, Bird & bird, Bird dove ) 2 { 3 if ( ptr == NULL ) 4 return false; 5 if ( ptr->info == dove ) { 6 bird = ptr->info; 7 return true; 8 } 9 return search( ptr->next, bird, dove ); 10 } ``` which is called for a linked list (where start points to the first node) using the lines of code: ``` if ( search( start, bird, dove ) ) cout << “search successful” << endl; ``` A. the other Bird information for the first node that does not contain dove B. a pointer to the Bird node that contains dove C. the other Bird information for the node that contains dove D. a pointer to NULL

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Computer Science & Information Technology

Under UNIX, to change your working directory, issue a __________ line command.

a. cwd b. cd c. dir d. ndir

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Computer Science & Information Technology

Which statement is true of using files?

a. Files must be opened by the user before being used. b. Files must be closed by the user after being used. c. Files that are opened must be closed. d. All of the above. e. None of the above.

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Computer Science & Information Technology

A(n) _________ query can be used to remove the duplicate values in a table

Fill in the blank(s) with correct word

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Computer Science & Information Technology