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ISYS6123003 - Post Test

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ISYS6123003 - Post Test
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The requirement that each entity much have a unique primary key where the value of that primary key is not null, is known as the....

Entity Integrity Rule

Entity-Relationship Rule

Referential Integrity Rule

Validation Index

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

  •  

    The frequency of a relationship between entities may be described by....

Indexed fields

Referential integrity

Transitive dependencies

Cardinality

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Majority of relational database system employ which language....

SQL

C#

Java

All of the above

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following makes it possible for entities to share a relationship?

The same number of attributes

A common attribute

A foreign key

Multi-valued attributes

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The following are date functions, except....

DATEDIFF

YEAR

DATESUM

DAY

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Functions that returns the starting position of a character string is called....

SUBSTRING

REPLACE

CHARINDEX

STUFF

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Functions that deletes a specified length of characters and inserts string at a specified starting index is called....

CHARINDEX

STUFF

SUBSTRING

CAST & CONVERT

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