Changing the way you learn

Question 1

Question

The terms "bitmap," "b-tree," and "hash" refer to which type of database structure?

Answer

View
Functon
Index
Stored procedure
Trigger

Question 2

Question

One reason to add an index is to:

Answer

Decrease storage space
Increase database security.
Improve performance of select statements.
Improve performance of insert statements.

Question 3

Question

You have a table that contains the following data. You break the table into the following two tables. This process is referred to as:

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Answer

defragmentaton
normalizaton
fragmentaton
denormalizaton

Question 4

Question

You have a table that contains the following data. Which database term is used to describe the relatonship between ProductID and ProductCategory?

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Answer

Cohort
Relatonally dependent
Deterministc
Functonally dependent
Compositonal

Question 5

Question

Which key uniquely identies a row in a table?

Answer

foreiqn
primary
local
superkey

Question 6

Question

Which statement creates a composite key?

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Answer

Opton A
Opton B
Opton C
Opton D

Question 7

Question

At 3:00 P.M. (1500 hours), you create a backup of your database. At 4:00 P.M. (1600 hours), you create a table named Customer and import data into the table. At 5:00 P.M. (1700 hours), your server fails. You run a script to apply only the 3:00 P.M. backup to your database. What is the result of the script?

Answer

The Customer table no longer exists.
The Customer table is unafected.
The Customer table exists but has no data.
The script fails.

Question 8

Question

In which situaton do you need to perform a restore on a database?

Answer

when data becomes corrupted in the database
when you need to roll back a transacton
when you encounter an error in your applicaton
when data needs to be deleted from the database

Question 9

Question

Which command should you use to give a user permission to read the data in a table?

Answer

ALLOW SELECT
LET READ
PERMIT READ
GRANT SELECT

Question 10

Question

You need to enable a new employee to authentcate to your database. Which command should you use?

Answer

ALLOW USER
CREATE USER
ADD USER
INSERT USER
ALTER USER

Question 11

Question

Which keyword can be used in a create table statement?

Answer

ORDER BY
DISTINCT
GROUP BY
UNIQUE

Question 12

Question

You need to store product quanttes, and you want to minimize the amount of storage space that is used. Which data type should you use?

Answer

INTEGER
DOUBLE
COUNT
FLOAT

Question 13

Question

Which statement will result in the creaton of an index?

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Answer

Option A
Option B
Option C
Option D

Question 14

Question

You have the following table deiniton: CREATE TABLE Road (RoadID INTEGER NOT NULL, Distance INTEGER NOT NULL) The Road table contains the following data: You execute the following statement: INSERT INTO Road VALUES (1234, 36) What is the result?

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Answer

an error statng that NULL values are not allowed
a new row in the table
an error statng that duplicate IDs are not allowed
a syntax error

Question 15

Question

You need to store product names that vary from three to 30 characters. You also need to minimize the amount of storage space that is used. Which data type should you use?

Answer

VARCHAR (3, 30)
CHAR (3, 30)
VARCHAR (30)
CHAR (30)

Question 16

Question

One reason to create a stored procedure is to:

Answer

Improve performance.
Minimize storage space.
Bypass case sensitvity requirements.
Give the user control of the query logic.

Question 17

Question

Which permission does a user need in order to run a stored procedure?

Answer

EXECUTE
ALLOW
CALL
RUN

Question 18

Question

You have a table named Product. You create a view that includes all the products from the Product table that are in the Furniture category. You execute a statement on the Product table that deletes all the products in the Furniture category. Afer you execute the statement, the result set of the view is:

Answer

Empty
Deleted
Unchanged
Archived

Question 19

Question

In SQL, an insert statement is used to add a:

Answer

User to a database.
Row of data to a table.
Table to a database.
Column to a table deiniton.

Question 20

Question

You have two tables. Each table has three rows. How many rows will be included in the Cartesian product of these two tables?

Answer

Question 21

Question

You are writng an SQL statement to retrieve rows from a table. Which data manipulaton language (DML) command should you use?

Answer

READ
SELECT
OUTPUT
GET

Question 22

Question

Which constraint ensures a unique value in the ID column for each customer?

Answer

DISTINCT
FOREIGN KEY
SEQUENTIAL
PRIMARY KEY

Question 23

Question

The component that holds informaton for a single entry in a table is called a:

Answer

Data type
Row
Column
View

Question 24

Question

You execute the following statement: SELECT EmployeeID, FirstName, DepartmentName FROM Employee, Department This type of operaton is called a/an:

Answer

Intersection
Outer join
Equi-join
Cartesian product

Question 25

Question

Which command should you use to add a column to an existng table?

Answer

MODIFY
ALTER
UPDATE
INSERT
CHANGE

Question 26

Question

You have the following table deiniton: CREATE TABLE Product (ID INTEGER PRIMARY KEY, Name VARCHAR(20), Quantty INTEGER) The Product table contains the following data. You execute the following statement: SELECT Name FROM Product WHERE Quantty IS NOT NULL How many rows are returned?

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Answer

Question 27

Question

You are writng a select statement to ind every product whose name contains a speciic character. Which keyword should you use in your where clause?

Answer

FIND
BETWEEN
INCLUDES
LIKE

Question 28

Question

A database contains two tables named Customer and Order. You execute the following statement: DELETE FROM Order WHERE CustomerID = 209 What is the result?

Answer

The irst order for CustomerID 209 is deleted from the Order table.
All orders for CustomerID 209 are deleted from the Order table, and CustomerID 209 is deleted from the Customer table.
All orders for CustomerID 209 are deleted from the Order table.
CustomerID 209 is deleted from the Customer table.

Question 29

Question

You have a table named Product. The Product table has columns for ProductDescripton and ProductCategory. You need to change the ProductCategory value for all the spoons in the Product table to 43. Which statement should you use?

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Answer

Opton A
Opton B
Opton C
Opton D

Question 30

Question

You have a table that contains informaton about all students in your school. Which SQL keyword should you use to change a student's irst name in the table?

Answer

UPDATE
CHANGE
SELECT
INSERT

Question 31

Question

You need to populate a table named EmployeeCopy with data from an existng table named Employee. Which statement should you use?

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Answer

Option A
Option B
Option C
Option D

Question 32

Question

You execute the following statement:

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Question32 (image/jpeg)

Answer

Subquery
Union
Outer join
Cartesian product

Question 33

Question

Which keyword would you use in a select statement to return rows that meet a speciic conditon?

Answer

WHERE
UNION
ORDER BY
FROM

Question 34

Question

You have a table named Employee that includes the following columns: EmployeeID Smp1oyeeName Which statement should you use to return the number of rows in the table?

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Answer

Option A
Option B
Option C
Option D

Question 35

Question

The Product table contains the following data. You execute the following statement: SELECT COUNT(*) FROM Product WHERE Quantty > 18 What is the value returned by this statement?

Answer

Question 36

Question

Which command should you use to remove a table from a database?

Answer

REMOVE TABLE
UPDATE TABLE
DROP TABLE
DELETE TABLE

Question 37

Question

You need to store the contact informaton for each student in your school database. You should store each student's informaton in a:

Answer

Stored procedure
Function
Row
Variable

Question 38

Question

Which category of SQL statements is used to add, remove, and modify database structures?

Answer

Data access language (DAL)
Data manipulation language (DML)
Data control language (DCL)
Data definiton language (DDL)

Question 39

Question

You have a Customer table and an Order table. You join the Customer table with the Order table by using the CusromerID column. The results include: • All customers and their orders • Customers who have no orders Which type of join do these results represent?

Answer

Complete join
Partial join
Inner join
Outer join

Question 40

Question

Data in a database is stored in:

Answer

Tables
Queries
Data types
Stored procedures

Question 41

Question

You have a table named Student that contains 100 rows. Some of the rows have a NULL value in the FirstName column. You execute the following statement: DELETE FROM Student What is the result?

Answer

All rows in the table will be deleted.
All rows containing a NULL value in the FirstName column will be deleted.
You will receive an error message.
All rows and the table deiniton will be deleted.

Question 42

Question

You need to establish a set of permissions that you can routnely assign to new users. What should you create?

Answer

Resource
Group
List
Role

Question 43

Question

Which database term is used to describe the process of applying a backup to a damaged or corrupt database?

Answer

Recover
Restore
Commit
Atach

Question 44

Question

You need to disable User1's access to view the data in the Customer table. Which statement should you use?

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Answer

Option A
Option B
Option C
Option D

Question 45

Question

Denormalizaton is performed in order to:

Answer

Reduce redundancy.
Eliminate repeatng groups.
Create smaller tables.
Improve query performance.

Question 46

Question

You have a table named Product that contains one million rows. You need to search for product informaton in the Product table by using the product's unique ID. What will make this type of search more efcient?

Answer

A cursor
A subquery
A trigger
An index

Question 47

Question

You have a table named Product that contains the following data. The PrcducrID column is the primary key. The CategoryID column is a foreign key to a separate table named Category. You execute the following statement: INSERT INTO Product VALUES (3296, 'Table', 4444) What is the result?

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Answer

a foreign key constraint violation
a syntax error
a new row in the Product table
a primary key constraint violation
a new row in the Category table

Question 48

Question

Which two keys establish a relatonship between two tables? (Choose two.)

Answer

candidate
foreign
superkey
local
primary

Question 49

Question

One diference between a functon and a stored procedure is that a functon:

Answer

Must be called from a trigger.
Must return a value.
Cannot contain a transaction.
Cannot accept parameters.

Question 50

Question

Which keyword must be included in a create view statement?

Answer

WHERE
ORDER BY
UPDATE
SELECT

Question 51

Question

You have a table named Customer. You need to add a new column named District. Which statement should you use?

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Answer

Option A
Option B
Option C
Option D

Question 52

Question

You need to remove a view named EmployeeView from your database. Which statement should you use?

Answer

DELETE VIEW EmployeeView
DELETE EmployeeView
DROP EmployeeView
DROP VIEW EmployeeView

Question 53

Question

A named group of SQL statements that can be executed in a database is called a:

Answer

Subroutine
Formula
Stored procedure
Method

Question 54

Question

A view can be used to:

Answer

Save an extra copy of data stored in a separate table.
Limit access to speciic rows or columns of data in a table.
Ensure referental integrity.
Save historical data before deleting it from the base table.

Question 55

Question

On which database structure does an update statement operate?

Answer

Table
User
Trigger
Role

Question 56

Question

You need to list the name and price of each product, sorted by price from highest to lowest. Which statement should you use?

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Answer

Option A
Option B
Option C
Option D

Question 57

Question

You delete rows in a table named Order. The corresponding rows in the OrderItem table are automatcally deleted. This process is an example of a/an:

Answer

Inherited delete
Cascade delete
Functional delete
Waterfall delete
Domino delete

Question 58

Question

Which statement deletes the rows where the employee's phone number is not entered

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Answer

Option A
Option B
Option C
Option D

Question 59

Question

You need to insert two new products into the Product table. The irst product is named Book and has an ID of 125. The second product is named Movie and has an ID of 126. Which statement should you use?

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Answer

OptIon A
OptIon B
OptIon C
OptIon D

Question 60

Question

You have a table named Employee that includes four columns. You execute the following statement: SELECT * FROM Employee Which columns are returned?

Answer

all columns
only the last column
only the First column
only the First and last columns

Question 61

Question

Which two elements are required to deine a column? (Choose two.)

Answer

A name
A key
An index
A data type

Question 62

Question

What deines the amount of storage space that is allocated to a value in a column?

Answer

format
key
data type
validator

Question 63

Question

You are creatng a table to store customer dat a. The AccountNumber column uses values that always consist of one leter and four digits. Which data type should you use for the AccountNumber column?

Answer

CHAR
BYTE
DOUBLE
SMALLINT

Question 64

Question

What is one diference between an update statement and a delete statement?

Answer

An update statement can change only one row.
A delete statement cannot use a where clause.
An update statement does not remove rows from a table.
A delete statement works only within a stored procedure.

Question 65

Question

You have a Department table and an Employee table in your database. You need to ensure that an employee can be assigned to only an existng department. What should you apply to the Employee table?

Answer

A primary key
An index
A foreign key
A unique constraint
A data type

Question 66

Question

You need to store the irst name, last name, and student ID for 100 students. This informaton will be stored in a table as:

Answer

100 items and three cells.
100 rows and three columns.
three rows and 100 columns.
three items and 100 cells.

Question 67

Question

What are three valid data manipulaton language (DML) commands? (Choose three.)

Answer

INSERT
COMMIT
DELETE
OUTPUT
UPDATE

Question 68

Question

You assign User1 a set of permissions that include the WITH GRANT OPTION. The WITH GRANT OPTION enables User1 to:

Answer

request a log of permission use.
delegate permissions to other users.
create new database users.
view other users' permissions.

Question 69

Question

Which type of index changes the order in which the data is stored in a table?

Answer

non-sequental
sequental
non-clustered
clustered

Question 70

Question

Which statement should you use to remove a foreign key?

Answer

ALTER TABLE
DELETE TABLE
DELETE FOREIGN KEY
ALTER FOREIGN KEY

Question 71

Question

First normal form requires that a database excludes:

Answer

Foreign keys
Composite keys
Duplicate rows
Repeatng groups

Question 72

Question

You execute a statement inside a transacton to delete 100 rows from a table. The transacton fails afer only 40 rows are deleted. What is the result in the database?

Answer

The table will be corrupted.
Forty (40) rows will be deleted from the table.
The transacton will restart.
No rows will be deleted from the table.

Question 73

Question

You have a table that contains product IDs and product names. You need to write an UPDATE statement to change the name of a speciic product to glass. What should you include in the update statement?

Answer

SET ProduetName = 'glass'
LET ProduetName = 'glass'
EXEC ProduetName = 'glass'
ASSIGN ProduetName = 'glass'

Question 74

Question

Your database contains a table named Customer. You need to delete the record from the Customer table that has a CusromerID of 12345. Which statement should you use?

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Question74 (image/jpeg)

Answer

OptIon A
OptIon B
OptIon C
OptIon D

Question 75

Question

On which database structure does an insert statement operate?

Answer

Role
Trigger
User
Stored procedure
Table

Question 76

Question

You have a table of products with ields for ProductID, Name, and Price. You need to write an UPDATE statement that sets the value in the InStock ield to Yes for a speciic ProductID. Which clause should you use in your update statement?

Answer

THAT
WHERE
GROUP BY
HAVING

Question 77

Question

You have the following table deiniton: CREATE TABLE Product (ProductID INTEGER, Name VARCHAR(20)) You need to insert a new product. The product's name is Plate and the product's ID is 12345. Which statement should you use?

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Answer

Option A
Option B
Option C
Option D

Question 78

Question

HOTSPOT Instructons: For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selecton is worth one point. A full database backup is a copy of all of the data in the entire database [blank_start]R[blank_end] A transaction log backup baciks up all the data in the database [blank_start]R[blank_end] A differential backup copies only data that was changed before tje last full backup [blank_start]R[blank_end] A file or filegroup restore specifies a portion of the database to recover [blank_start]R[blank_end]

Answer

Verdadero
Falso
Verdadero
Falso
Verdadero
Falso
Verdadero
Falso

Question 79

Question

HOTSPOT The following graphic shows the components of a SQL Server applicaton. You access the SQL Server applicaton through Internet Explorer. The [[blank_start]Answer Choice[blank_end]] computer is the first line of defense againts SQL injections and weak input validation. The [[blank_start]Answer Choice[blank_end]] computer should be formatted with NTFS to protec program, database, and log files from unauthorized access.

Image:

79 (image/png)

Answer

client
www.contoso.com
s01.contoso.com
client
www.contoso.com
s01.contoso.com

Question 80

Question

You have the database table named Cars as deined below:

Image:

80 (image/png)

Answer

Question 81

Question

You have a database table named SongInformaton as deined below: You need to create a Structured Query Language (SQL) query to retrieve only the names of songs that sold more than 1000 compact discs (CDs). Which query should you use?

Image:

81 (image/png)

Answer

Question 82

Question

You accept an IT internship at a local charity. The charity asks you to keep a record of its volunteers by using a database table named Volunteer. The table has the following columns and rows:

Image:

82 (image/jpeg)

Answer

Question 83

Question

This queston requires that you evaluate the underlined text to determine if it is correct. ALTER TABLE removes all rows from a table without logging the individual row deletons. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

Answer

No change is needed
DROP TABLE
TRUNCATE TABLE
CREATE TABLE

Question 84

Question

You need to combine the results of two queries into a single result that contains all of the rows from both queries. Which Structured Query Language (SQL) statement should you use?

Answer

TRUNCATE
JOIN
EXCEPT
UNION

Question 85

Question

This queston requires that you evaluate the underlined text to determine if it is correct. [blank_start]The CREATE TABLE[blank_end] command removes one or more table deinitons and all data, indexes, triggers, constraints, and permission speciicatons for those tables. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct

Answer

No change is needed
DROP TABLE
TRUNCATE TABLE
ALTER TABLE

Question 86

Question

You accept an IT internship at a local charity. The charity wants you to help them with compliance and auditing requirements. You need to ensure that a column or combination of columns uniquely identifies each row of a table. Which constraint should you define?

Answer

Primary key
Secondary key
Foreign key
Default Key

Question 87

Question

HOTSPOT You have the following table: Adding a [answer choice] on the FlightNumber column physically sorts rows in the by FlightNumber

Image:

Q88 (image/jpeg)

Answer

foreing key
clustered index
noclustered index

Question 88

Question

HOTSPOT You have the following table: Adding a [answer choice] on the Airline column retrieves data faster, but will not physically sort rows in the table by Airline

Image:

Q88 (image/jpeg)

Answer

foreing key
clustered index
noclustered index

Question 89

Question

While atending college, you accept an IT internship at a local charity. The charity needs to report on data that is related and exists in two tables. You need to establish a relationship between the data that is in the two tables. Which constraint should you define?

Answer

Foreing Key
Index Key
Link Key
Default Key

Question 90

Question

This question requires that you evaluate the underlined text to determine if it is correct. A view [can be used to ensure referental integrity]. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

Answer

No change is needed.
Save an extra copy of data stored in a separate table.
Limit access to specific rows or columns of data in a table.
Save historical data before deleting it from the base table.

Question 91

Question

DRAG DROP You need to set up a database to provide a view of North American mammals. Match the Structured Query Language (SQL) statements to the SQL query. Instructions: To answer, drag the appropriate SQL statement from the column on the lef to its place in the SQL query on the right Each SQL statement may be used once, more than once, or not at all. Each correct match is worth one point.

Image:

Q91 (image/jpeg)

Answer

CREATE VIEW dbo.NorthAmericanMammal_View
GENERATE VIEW dbo.NorthAmericanMammal_Vi
AS JOIN a.Id , a.Name
AS SELECT a.Id, a.Name
FROM Animal a
JOIN Animal a

Question 92

Question

DRAG DROP You have a database table that stores information about school atendance. You have a data set that is defined as follows: You have the following requirements: StudentName must consist of a string of characters. GradeLevel must be only a whole number. DaysAbsent can have one number after the decimal. Match the data types to the column names.

Image:

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Answer

VARCHAR
CHAR
INT
BIT
DECIMAL
DATETIME

Question 93

Question

The VARCHAR data type contains only numeric characters.

Answer

True
False

Question 94

Question

The NUMERIC data type contains only numbers that have decimal places.

Answer

True
False

Question 95

Question

The INT data type contains only whole numbers.

Answer

True
False

Question 96

Question

This question requires that you evaluate the underlined text to determine if it is correct. In a database table, each [column] represents a unique record. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

Answer

No change is needed
Table
Index
Row

Question 97

Question

This question requires that you evaluate the underlined text to determine if it is correct. You have two tables. Each table has three rows. [Nine] rows will be included in the Cartesian product of these two tables. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement corrector.

Answer

No change is needed
Zero
Three
Six

Question 98

Question

You have two tables named Salesperson and Sales. You need to ensure that each record in the Sales table has a valid associated salesperson record in the Salesperson table. Which database object should you add to the Sales table?

Answer

Nonclustered index
Primary key
Foreign key
Clustered index

Question 99

Question

DRAG DROP Your class project requires that you help a charity set up a website. The website collects informaton about volunteers. Each volunteer record must be uniquely identied. The following informaton is stored for each volunteer: Given name Surname Date of birth Phone number Photo You need to create a table to meet the requirements. Match the Structured Query Language SQL statements to the SQL query. Instructons: To answer, drag the appropriate SQL statement from the column on the lef to its place in the SQL query on the right. Each SQL statement may be used once, more than once, or not at all. Each correct match is worth one point.

Image:

Q97 (image/png)

Answer

INT NOT NULL PRIMARY KEY
INT NOT NULL FOREING KEY
DATE NULL
TIMESTAMP NULL
IMAGE NULL
XML NULL

Question 100

Question

This queston requires that you evaluate the underlined text to determine if it is correct. Use the [ALTER] statement to add a new table in a database. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

Answer

No change is needed
UPDATE
INSERT
CREATE

Question 101

Question

You need to rename a column in a database table. Which data deiniton language (DDL) statement should you use?

Answer

ALTER
INSERT
CREATE
UPDATE

Question 102

Question

DRAG DROP You have two database tables as deined below. The First table contains informaton about students. The second table contains informaton about courses. The two tables are related by CourseID. Match the CourseName to the StudentName. Instructons: To answer, drag the appropriate CourseName from the column on the lef to its StudentName on the right. Each CourseName may be used once, more than once, or not at all. Each correct match is worth one point.

Image:

Q100 (image/jpeg)

Answer

MATH
MATH
SCIENCE
MATH
SCIENCE
SCIENCE
GEOGRAPHY
READING
HISTORY
GEOGRAPHY
READING
HISTORY
GEOGRAPHY
READING
HISTORY

Question 103

Question

This question requires that you evaluate the underlined text to determine if it is correct. Use [indexing] to create, remove, or change database objects. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

Answer

No change is needed.
Data manipulaton language (DML) statements
Data deiniton language (DDL) statements
A unique constraint

Question 104

Question

You need to add rows to a database table. Which Structured Query Language (SQL) keyword should you use?

Answer

JOIN
INSERT
CREATE
UPDATE

Question 105

Question

You need to retrieve data from two related database tables based on a column that exists in both tables. Which command should you use in a query?

Answer

INTERSECT
UNION
JOIN
TRUNCATE

Question 106

Question

You have a database table that contains the following columns, Which two Structured Query Language (SQL) statements can you use? (Choose two.)

Image:

104 (image/jpeg)

Answer

Question 107

Question

This queston requires that you evaluate the underlined text to determine if it is correct. The UNION keyword combines the results of two queries and returns only rows that appear in both result sets. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct

Answer

No change is needed
INTERSECT
ALL
EXCEPT

Question 108

Question

You work at a restaurant and they ask you to help them with a data issue. They provide you with the following recipe data: (imag) You need to normalize the data to third normal form. How many tables should you create?

Image:

106 (image/png)

Answer

Question 109

Question

You accept an IT internship at a local charity. The charity has two tables in their data model named Chapter and Language, as deined below: (img) You create a third table named ChapterLanguage to relate the Chapter table and the Language table. You need to select columns from the Chapter and Language tables to create a composite primary key for the ChapterLanguage table. Which two columns should you select? (Choose two.)

Image:

107 (image/png)

Answer

ChapterId
LanguageId
Country
Region
City
LanguageName

Question 110

Question

HOT SPOT Instructons: For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selecton is worth one point. A clustered index sorts and stores the data columns of a table or view in order, based on the clustered index hey.

Answer

True
False

Question 111

Question

HOT SPOT Instructons: For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selecton is worth one point. A non-clustered index is defined on a table or view by using a clustered index or heap

Answer

True
False

Question 112

Question

HOT SPOT Instructons: For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selecton is worth one point. A unique index ensures that the index key contains no duplicate values and that every row in the table or view in unique

Answer

True
False

Question 113

Question

HOT SPOT Instructons: For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selecton is worth one point. A filtered index is a clustered index that is optimized for queries that select a small percentage of rows from a table

Answer

True
False

Question 114

Question

This queston requires that you evaluate theu nderlined text todetermine if it is correct. You combine data from three tables into one table. The new table includes redundancy to optmize read performance. The data in the new table has been denormalized. Instructons: Review the under lined text. If it makes the statement correct, select "Nochangeisneeded." If the statementisincorrect, select the answer choice that makes the statement correct.

Answer

No change is needed
Normalized
Truncated
Indexed

Question 115

Question

You need to delete a database table. Which data definition language (DDL) keyword should you use?

Answer

ALTER
DELETE
DROP
TRUNCATE

Question 116

Question

This question requires that you evaluate the underlined text to determine if it is correct. [Create a query that returns a set of table data by using the UPDATE statement.] Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

Answer

No change is needed
INSERT
REPLACE
SELECT

Question 117

Question

Your class project requires that you help a charity to create a website that registers volunteers. The website must store the following data about the volunteers: • Given name • Surname • Telephone number • Email address You need to recommend a correct way to store the data. What do you recommend?

Answer

Create a table that contains columns that are named given name, surname, phone number, and email.
Create a table that contains rows that are named given name, surname, phone number, and email.
Create a view that contains columns that are named given name surname, phone number, and email.
Create a view that contains rows that are named given name surname, phone number, and email

Question 118

Question

This queston requires that you evaluate the underlined text to determine if it is correct. [Truncate] is a database term used to describe the process of applying a backup to a damaged or corrupt database. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement corrector.

Answer

Change is needed
Commit
Attach
Restore

Question 119

Question

This queston requires that you evaluate the underlined text to determine if it is correct. Use the [ALLOW SELECT] command to give a user permission to read the data in a table. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct

Answer

No change is needed
GRANT SELECT
LET HEAD
PERMIT READ

Question 120

Question

You have a user that has server roles as deined below: The user can perfect [answer choice] actions on data that is on the serve

Image:

115 (image/png)

Answer

no
read-only
unlimited

Question 121

Question

You have a user that has server roles as deined below: The user can perfect [answer choice] actions on data that is on the serve

Image:

115 (image/png)

Answer

no
unlimited
configuration

Question 122

Question

The following illustraton shows backup strategies that use the simple recovery model and the full recovery model: Using the simple recovery model for database backups provides [answer choice] works-loss exposure than the full recovery model

Image:

116 (image/png)

Answer

less
more
the same

Question 123

Question

Image:

116 (image/png)

Answer

less
more
the same

Question 124

Question

You can delete data by using a stored procedure

Answer

True
False

Question 125

Question

A function must have a return value

Answer

True
False

Question 126

Question

A stored procedure must have a return value

Answer

True
False

Question 127

Question

This queston requires that you evaluate the underlined text to determine if it is correct. [Views] are database objects that contain all of the data in a database. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct

Answer

No change is needed
Queries
Stored procedures
Tables

Question 128

Question

You have two tables named Cars and Color as deined below. The two tables are related by ColorId.

Image:

1 (image/jpeg)

Answer

Question 129

Question

You accept an IT internship at a local charity. The charity asks you to keep a record of its volunteers by using a database table named Volunteer. When volunteers ask to be removed from mailing lists, the table must be updated. You need to use a transacton to ensure that the database has data integrity and referental integrity. Which statement should you use?

Answer

Question 130

Question

This queston requires that you evaluate the underlined text to determine if it is correct. [ALTER TABLE] removes all rows from a table without logging the individual row deletons. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

Answer

No change is needed
DROP TABLE
TRUNCATE TABLE
CREATE TABLE

Question 131

Question

You work at a cofee shop. They ask you to set up a website that stores charges on purchases. You need to recommend a data type in a database table to run inancial functons against the charged amounts. Which data type should you recommend?

Answer

Money
Bit
Varchar
Binary

Question 132

Question

This queston requires that you evaluate the underlined text to determine if it is correct. [ A row holds informaton for a single record in a table.] Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct

Answer

No change is needed
Column
Data type
View

Question 133

Question

A SQL Server Login can use Windows Authentication

Answer

True
False

Question 134

Question

A SQL Server Role provides permissions at the server level

Answer

True
False

Question 135

Question

A SQL Server Login is granted permissions to database views only

Answer

True
False

Question 136

Question

This queston requires that you evaluate the underlined text to determine if it is correct. [ Ports 20 and 21 are the default ports to secure a SQL Server.] Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

Answer

No change is needed
1433 and 1434
411 and 412
67 and 68

Question 137

Question

You are creating a database object named Student to store the following data:

Image:

6 (image/jpeg)

Answer

Question 138

Question

You develop a database to store data about textbooks. The data must be stored to process at a later tme. Which database object should you use to store the data?

Answer

View
Table
Function
Stored procedure

Question 139

Question

This question requires that you evaluate the underlined text to determine if it is correct. [First normal form requires that a database excludes repeatng groups] Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct.

Answer

No change is needed.
Composite keys
Duplicate rows
Foreign keys

Question 140

Question

HOTSPOT You have two database tables as deined below. The StateID column is unique in the State table. The AddressID column is unique in the Address table. The two tables are related by the StateID column. StateID is a /an [blank_start][answer choice][blank_end] in the State table

Image:

1 (image/png)

Answer

Index
Union
Foreing key
Primary key

Question 141

Question

Image:

1 (image/png)

Answer

Primary Key
Foreing Key
UNION
Index

Question 142

Question

This queston requires that you evaluate the underlined text to determine if it is correct. Use the [blank_start]FROM keyword in a SELECT[blank_end] statement to return rows that meet a speciic conditon. Instructons: Review the underlined text. If it makes the statement correct, select "No change is needed." If the statement is incorrect, select the answer choice that makes the statement correct

Answer

No change is needed
ORDER BY
UNION
WHERE

Question 143

Question

A cluestered Index improves the perfomance of queries that [answer choice]

Image:

Q87 (image/jpeg)

Answer

return large result set
return a range of values by using the = operator
do not use ORDER BY or GROUP BY clauses

Question 144

Question

A Clustered index improves the perfomances of queries on column that [answer choice]

Image:

Q87 (image/jpeg)

Answer

are accessed randomly
are accessed sequentially
are not unique or contain many common values

Question 145

Question

You have the following SQL query SELECT * FROM dbo.ProAthlete WHERE Salary > 500000 The query takes too much tme to return data. You need to improve the performance of the query. Which item should you add to the Salary column?

Answer

Non-null constraint
Default constraint
Index
Foreign key

	Created by Kelvin Rivas over 7 years ago

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