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Subject: Computer

637 MCQs

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# Medium Computer COMPUTER

_________ rollback requires the system to maintain additional information about the state of all the running transactions.

A Partial

B Total

C Time

D Commit

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# Medium Computer COMPUTER

Which join refers from the write table that have no matching key in the left table are included in the result set?

A Left Outer Join

B Right Outer Join

C Full Outer Join

D Half Outer Join

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# Medium Computer COMPUTER

________ normal form removes transitive dependency.

A First

B Third

C Second

D BCNF

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# Medium Computer COMPUTER

In a table composite key consists of _______ attribute (s).

A More than one

B One

C Two

D One & Two

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# Medium Computer COMPUTER

Computer performs five basic operations which are input, _________________, output, storage and control.

A Execute

B Compile

C Process

D Compute

Explanation

Explanation
There are five basic types of computer operations: Inputting, processing , outputting, storing, and controlling.

Explanation
The abacus is a calculating tool which has been used since ancient times

Explanation
Email stand for Electronic Mail. @ is used to divide an email itno two parts.

Explanation
. org domains are considered some of the most trusted on the internet.

Explanation
A transaction ends when it is committed or rolled back, either explicitly with a COMMIT or ROLLBACK statement or implicitly when a DDL statement is issued

Explanation
A right outer join is a method of combining tables.

Explanation
To achieve the normalization standard of Third Normal Form (3NF), you must eliminate any transitive dependency

Explanation
The Primary Key consisting of two or more attributes is called Composite Key.

Explanation
Data redundancy occurs when the same piece of data exists in multiple places, whereas data inconsistency is when the same data exists in different formats in multiple tables

Explanation
Data integrity is a concept and process that ensures the accuracy, completeness, consistency, and validity of an organization's data

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# Medium Computer COMPUTER

Computer performs five basic operations which are input, _________________, output, storage and control.

A Execute

B Compile

C Process

D Compute

View Details

# Medium Computer COMPUTER

The earliest calculating device is:

A Calculator

B Difference engine

C Analytical engine

D Abacus

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# Medium Computer COMPUTER

Computer performs five basic operations which are input, _________________, output, storage and control.

A Execute

B Compile

C Process

D Compute

Explanation

Explanation
There are five basic types of computer operations: Inputting, processing , outputting, storing, and controlling.

Explanation
The abacus is a calculating tool which has been used since ancient times

Explanation
Email stand for Electronic Mail. @ is used to divide an email itno two parts.

Explanation
. org domains are considered some of the most trusted on the internet.

Explanation
A transaction ends when it is committed or rolled back, either explicitly with a COMMIT or ROLLBACK statement or implicitly when a DDL statement is issued

Explanation
A right outer join is a method of combining tables.

Explanation
To achieve the normalization standard of Third Normal Form (3NF), you must eliminate any transitive dependency

Explanation
The Primary Key consisting of two or more attributes is called Composite Key.

Explanation
Data redundancy occurs when the same piece of data exists in multiple places, whereas data inconsistency is when the same data exists in different formats in multiple tables

Explanation
Data integrity is a concept and process that ensures the accuracy, completeness, consistency, and validity of an organization's data

View Details

# Medium Computer COMPUTER

Computer performs five basic operations which are input, _________________, output, storage and control.

A Execute

B Compile

C Process

D Compute

Explanation

Explanation
There are five basic types of computer operations: Inputting, processing , outputting, storing, and controlling.

Explanation
The abacus is a calculating tool which has been used since ancient times

Explanation
Email stand for Electronic Mail. @ is used to divide an email itno two parts.

Explanation
. org domains are considered some of the most trusted on the internet.

Explanation
A transaction ends when it is committed or rolled back, either explicitly with a COMMIT or ROLLBACK statement or implicitly when a DDL statement is issued

Explanation
A right outer join is a method of combining tables.

Explanation
To achieve the normalization standard of Third Normal Form (3NF), you must eliminate any transitive dependency

Explanation
The Primary Key consisting of two or more attributes is called Composite Key.

Explanation
Data redundancy occurs when the same piece of data exists in multiple places, whereas data inconsistency is when the same data exists in different formats in multiple tables

Explanation
Data integrity is a concept and process that ensures the accuracy, completeness, consistency, and validity of an organization's data

View Details

# Medium Computer COMPUTER

Computer performs five basic operations which are input, _________________, output, storage and control.

A Execute

B Compile

C Process

D Compute

Explanation

Explanation
There are five basic types of computer operations: Inputting, processing , outputting, storing, and controlling.

Explanation
The abacus is a calculating tool which has been used since ancient times

Explanation
Email stand for Electronic Mail. @ is used to divide an email itno two parts.

Explanation
. org domains are considered some of the most trusted on the internet.

Explanation
A transaction ends when it is committed or rolled back, either explicitly with a COMMIT or ROLLBACK statement or implicitly when a DDL statement is issued

Explanation
A right outer join is a method of combining tables.

Explanation
To achieve the normalization standard of Third Normal Form (3NF), you must eliminate any transitive dependency

Explanation
The Primary Key consisting of two or more attributes is called Composite Key.

Explanation
Data redundancy occurs when the same piece of data exists in multiple places, whereas data inconsistency is when the same data exists in different formats in multiple tables

Explanation
Data integrity is a concept and process that ensures the accuracy, completeness, consistency, and validity of an organization's data

View Details

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