Q:

Data integrity constraints are used to

A) Ensure that duplicate records are not entered into the table	B) Prevent users from changing the values stored in the table
C) Control who is allowed access to the data	D) Improve the quality of data entered for a specific property like table column

Answer & Explanation Answer: D) Improve the quality of data entered for a specific property like table column

Explanation:

Integrity constraints are used to ensure accuracy and consistency of data in a relational database. Data integrity is handled in a relational database through the concept of referential integrity. Many types of integrity constraints play a role in referential integrity (RI).

Hence, Data integrity constraints are used to Improve the quality of data entered for a specific property i.e, table column.

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Filed Under: Oracle Certification
Job Role: Analyst , Database Administration , IT Trainer

27 9149

Q:

Species containing same number of electrons are called

A) Isotopes	B) Isobars
C) Isoelectronic	D) Isotones

Answer & Explanation Answer: C) Isoelectronic

Explanation:

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Filed Under: Chemistry

24 9144

Q:

When Alexander invaded India, Taxila was ruled by

A) Ambhi	B) Porus
C) Ashoka	D) Bimbisara

Answer & Explanation Answer: A) Ambhi

Explanation:

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Filed Under: Indian History

13 9141

Q:

The Microsoft Access wildcards are ____ and ____ .

A) asterisk (*); percent sign (%)	B) percent sign (%); underscore (_)
C) underscore(_); question mark (?)	D) question mark (?); asterisk (*)

Answer & Explanation Answer: D) question mark (?); asterisk (*)

Explanation:

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Filed Under: Operating Systems
Exam Prep: Bank Exams
Job Role: IT Trainer

81 9140

Q:

At which one of the following places do two important rivers of India originate;while one of them flows towards north and merges with another important river flowing towards Bay of Bengal, the other one flows towards Arabian Sea?

A) Amarkantak	B) Badrinath
C) Mahabaleshwar	D) Nasik

Answer & Explanation Answer: A) Amarkantak

Explanation:

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Filed Under: Indian Geography

16 9138

Q:

Logical puzzle

You work at a fruit factory.
There are 3 crates in front of you. One crate contains only apples. One crate contains only oranges. The other crate contains both apples and oranges. And each crate is labeled. One reads "apples", one reads "oranges", and one reads "apples and oranges". But the labeling machine has gone crazy and is now labeling all boxes incorrectly. If you can only take out and look at just one of the pieces of fruit from just one of the crates, how can you label ALL of the crates correctly?

Answer

Our solution:

Take a piece of fruit from the "apples and oranges" crate. If it's an apple then you know that is the "apples" crate since ALL THE CRATES ARE LABELED INCORRECTLY. This means the crate marked "apples" must be "oranges" and the crate marked "oranges" must be "apples and oranges".

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Subject: Logic Puzzles

95 9131

Q:

In 1934 Mahatma Gandhi withdrew from active politics and even resigned his membership of the Congress because

A) of the failure of the Civil Disobedience Movement	B) the political climate of India was unsuitable for any political movement
C) he wanted to devote himself fully to constructive programme and Harijam welfare	D) of his opposition to the desire of congressmen to enter legislatures under the Government of India Act of 1935

Answer & Explanation Answer: C) he wanted to devote himself fully to constructive programme and Harijam welfare

Explanation:

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Filed Under: Indian History

3 9131

Q:

Who of the following was awarded ' Bharat Ratna ' posthumously

A) Dr.S.Radhakrishnan	B) Mother Teresa
C) Jayaprakash Narayan	D) Khan abdul Ghaffar Khan

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