13 MAY 2021 CURRENT AFFAIRS QUIZ

A fact is a word or phrase that has a specific meaning for the business.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

Cardinality specifies the number of instances of one entity that can be associated with each instance of another entity.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

A ternary relationship involves how many entities?

3 or more

More than 3

3

3 or less

TRUE ANSWER : ?
YOUR ANSWER : ?

Relationships cannot have attributes.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following conditions should exist if you want to convert a relationship to an associative entity?

All of these

The resulting associative entity has an independent meaning.

The resulting associative entity has no attributes.

Some of the relationships for the participating entities are 'many'.

TRUE ANSWER : ?
YOUR ANSWER : ?

A rectangle represents which of the following in an ERD?

Optional One

Entity

Relationship

Attribute

TRUE ANSWER : ?
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A strong entity is an entity whose existence depends on some other entity type.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

An entity name should be which of the following?

Concise

Specific to the organization

A singular noun

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

When the minimum and maximum number of instances of an entity is one, you know which of the following?

Cannot tell

Mandatory one

Optional one

Mandatory many

TRUE ANSWER : ?
YOUR ANSWER : ?

A binary relationship cannot be which of the following?

One-to-Many

Many-to-Many

One-to-One

Zero-to-Zero

TRUE ANSWER : ?
YOUR ANSWER : ?