What does the base 2 number, 0100 1111, convert to in decimal?

What does the base 2 number, 0100 1111, convert to in decimal?

A. 128
B. 79
C. 91
D. 25


Answer: B

In an ERD, the lines represent __________.

In an ERD, the lines represent __________.

A. Entries
B. Relationships
C. Attributes
D. Cardinality


Answer: B

In an ERD, the boxes represent___________.

In an ERD, the boxes represent___________.

A. Cardinality
B. Attributes
C. Relationships
D. Entities


Answer: D

When a DBMS accounts for linked records when a parent record is deleted, what is this called?

When a DBMS accounts for linked records when a parent record is deleted, what is this called?

A. Referential integrity
B. DB Refinery
C. Cleanup routine
D. Disposal Protocol


Answer: A

In a flat file system, how many times must a single piece of data be added?

In a flat file system, how many times must a single piece of data be added?

A. once for every table
B. once
C. unknown


Answer: C

In a relational database, how many times must a single piece of data be added?

In a relational database, how many times must a single piece of data be added?

A. once for every table
B. unknown
C. Once


Answer: C