Hawerth Castro
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Hawerth Castro
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CET_TARDE - MTA Database - DIAGNOSTIC3

Question 1 of 15

1

What do you call the elimination of redundant data?

Select one of the following:

  • normalization

  • de-duplication

  • loopbacking

  • reduxing

Explanation

Question 2 of 15

1

Which of the following indicates the elimination of repeating groups?

Select one of the following:

  • 1NF

  • 2NF

  • 3NF

  • 4NF

Explanation

Question 3 of 15

1

Which of the following indicates the elimination of redundant data?

Select one of the following:

  • 1NF

  • 2NF

  • 3NF

  • 4NF

Explanation

Question 4 of 15

1

Which of the following is not a condition for 1NF?

Select one of the following:

  • Table must have no duplicate records.

  • The table must have no multi-valued attributes.

  • There are no primary keys.

  • Entries in the column are of the same data type.

Explanation

Question 5 of 15

1

What would enable you to enforce the uniqueness property of columns, other than a primary key within a table?

Select one of the following:

  • secondary key

  • constant check

  • validator

  • unique constraint key

Explanation

Question 6 of 15

1

What is an attribute or set of attributes that can be used to uniquely identify the row?

Select one of the following:

  • primary key

  • second key

  • unique constraint key

  • foreign key

Explanation

Question 7 of 15

1

What key is replicated from the primary key of one table to a secondary table, and then all the key attributes get duplicated from the primary table?

Select one of the following:

  • primary key

  • second key

  • unique constraint key

  • foreign key

Explanation

Question 8 of 15

1

What type of index sorts the data stored inside the table?

Select one of the following:

  • clustered index

  • non-clustered index

  • quick index

  • primary index

Explanation

Question 9 of 15

1

What type of index has an index key value that points to a data row, which contains the key value?

Select one of the following:

  • clustered index

  • nonclustered index

  • quick index

  • primary index

Explanation

Question 10 of 15

1

What type of field would you make an employee ID?

Select one of the following:

  • standard key

  • foreign key

  • unique constraint key

  • secondary key

Explanation

Question 11 of 15

1

If you define a primary key, which of the following levels have you reached?

Select one of the following:

  • 1NF

  • 2NF

  • 3NF

  • 4NF

Explanation

Question 12 of 15

1

Which level eliminates columns not dependent on keys?

Select one of the following:

  • 1NF

  • 2NF

  • 3NF

  • 4NF

Explanation

Question 13 of 15

1

Which level of is reached by using primary keys on a table within a SQL Server database?

Select one of the following:

  • 1NF

  • 2NF

  • 3NF

  • 4NF

Explanation

Question 14 of 15

1

What structures are used when storing keys for a clustered index?

Select one of the following:

  • root tree

  • reverse root tree

  • B-tree

  • alphabetical

Explanation

Question 15 of 15

1

Which type of index uses pointers that point to row location?

Select one of the following:

  • clustered index

  • nonclustered index

  • quick index

  • primary index

Explanation