Which type of database is a collection of tables linked by their primary keys?
a. Hierarchical database
b. Network database
c. Relational database
d. Object-oriented database
ANS: C
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The ISDN PRI contains
a. 2 B-channels b. 23 B-channels c. 2 D-channels d. 23 D-channels
Explain how you would use crontab to schedule a script that finds and removes your old temporary files in /tmp at the start of each day.
What will be an ideal response?
The purpose of the img element’s ______ attribute is to provide a method for a browser to display different images depending on specific criteria indicated by the web developer.
a. picture b. srcset c. sizes d. media
Stacks are known as _______________ data structures; the last item pushed (inserted) onto the stack is the first item popped (removed) from the stack.
Fill in the blank(s) with the appropriate word(s).