Question 1

In SQL, the ____________ requires that both search criteria be true in order for a row to be qualified as a match.
A) Or operator
B) Also keyword
C) & character
D) And operator

Accepted Answer

The "And" operator requires that both search criteria be true in order for a row to be qualified as a match in SQL. This is because the "And" operator acts as a logical conjunction, joining two or more conditions together and ensuring that all conditions are true for a record to be selected.

Question 2

The ____________ identifies a column from the table to display in a ListBox control.
A) ShowColumn property
B) column name
C) DisplayMember property
D) DataSource property

Accepted Answer

The DisplayMember property is used to identify a column from the DataSource to display in a ListBox control. The property is set to the name of the column that should be displayed.

Question 3

In SQL, the ____________ can be used to search for a substring.
A) Sub method
B) Contains statement
C) Who instruction
D) Like operator

Accepted Answer

The Like operator is used to search for a pattern within a string, including finding a substring within a larger string. It allows for the use of wildcard characters such as % (matches any string of any length) and _ (matches any single character). The other options listed are not valid SQL syntax for searching for substrings.

Question 4

When you use the ____________ in a Select statement, only the rows that meet the search criteria are returned.
A) Ask keyword
B) Where clause
C) operator
D) Find expression

Accepted Answer

The Where clause is used in a Select statement to specify search criteria that must be met in order for the row to be returned. It filters out all the rows that don't meet the criteria.

Question 5

In SQL, you use keywords to construct statements, which are also known as ____________.
A) queries
B) expressions
C) determinants
D) solutions

Accepted Answer

Statements in SQL are commonly referred to as queries, as they are used to extract data from a database. They can also be used to update, insert, or delete data, but the term "query" still applies. Expressions and determinants are not commonly associated with SQL, and solutions can refer to any output generated by a query or other program, so A is the most appropriate choice.

Question 6

SQL, which stands for ____________, is a standard language for working with database management systems.
A) simultaneous query logic
B) structured query language
C) sequential query language
D) standard quasi language

Accepted Answer

SQL stands for Structured Query Language, which is a standard language used for managing relational databases. SQL allows users to create, update, and manipulate data stored in database management systems.

Question 7

In SQL, the ____________ is used as a wildcard character, and can be used to represent any sequence of zero or more characters.
A) ^ symbol
B) Wild operator
C) % symbol
D) * character

Accepted Answer

In SQL, the % symbol is used as a wildcard character, and can be used to represent any sequence of zero or more characters.

Question 8

The ____________ identifies the table from which the data-bound control will get its data.
A) DataSource property
B) Table property
C) primary key
D) DisplayMember property.

Accepted Answer

The DataSource property identifies the source of data for the data-bound control. It specifies the object that provides data for the control.

Question 9

In SQL, the ____________ calculates the average value in a particular column.
A) Average function
B) # symbol
C) Avg function
D) SQL_Average statement

Accepted Answer

The Avg function in SQL calculates the average value in a particular column.

Question 10

When working with data-bound controls on multiple forms, you can make sure that a dataset contains a current copy of the data by calling the table adapter's ____________.
A) Sync method
B) Refresh method
C) Fill method
D) Clear method

Accepted Answer

The Fill method of a table adapter is used to populate a dataset with a current copy of the data from the database, ensuring that the dataset contains the most up-to-date information.

Question 11

In SQL, strings are enclosed in ____________.
A) single quotes
B) underscores
C) asterisks
D) brackets

Accepted Answer

In SQL, strings are enclosed in single quotes. This helps distinguish between strings and other data types, such as integers or dates.

Question 12

In SQL, you use the ____________ to retrieve the rows in a table.
A) Read statement
B) Get expression
C) Select statement
D) Row keyword

Accepted Answer

The Select statement is used to retrieve rows in a table. A Read statement is not a SQL keyword, Get expression is not a standard SQL term, and Row keyword is not a SQL keyword for selecting rows.

Question 13

If you wish to sort the results of an SQL Select query, you can use the ____________.
A) Order By clause
B) List keyword
C) Index method
D) @ operator

Accepted Answer

The Order By clause allows sorting of results in ascending or descending order based on one or more columns. The List keyword is not related to sorting, while the Index method and the @ operator are not used for sorting in SQL Select queries.

Question 14

SQL provides the ____________ for determining the number of matching rows in a table.
A) Rows function
B) Count function
C) Max function
D) Volume function

Accepted Answer

The Count function in SQL can be used to determine the number of matching rows in a table. It can be used with or without conditions, and can count all rows or a specific subset of rows that meet certain criteria.

Question 15

In an SQL statement, a query parameter variable begins with the ____________.
A) param keyword
B) var operator
C) @ symbol
D) ref clause

Accepted Answer

In SQL, a query parameter variable begins with the '@' symbol. This symbol indicates to the database that the following text is a parameter and should be replaced with an actual value when the query is executed.

Question 16

A(n) ____________ is an SQL statement stored in a table adapter object, which can be executed simply by calling a method.
A) dataset macro
B) columnar directive
C) table adapter query
D) referenced subroutine

Accepted Answer

A table adapter query is an SQL statement stored in a table adapter object, which can be executed by calling a method. A dataset macro and columnar directive are not commonly used terms in SQL or programming, and a referenced subroutine is not specific to SQL or table adapters.

Question 17

When you click on the ____________ in a data-bound control, a tasks panel will appear, giving you a number of options you can perform.
A) options check box
B) smart tag
C) view button
D) taskbar

Accepted Answer

The smart tag is a feature in data-bound controls that provides a list of options for the user. When the user clicks on it, a tasks panel appears, giving them control over the data display and manipulation. The other options listed are not related to data-bound controls.

Question 18

A ____________ is a file, ending with the .xsd extension, which describes the contents of a dataset.
A) schema definition file
B) extensible schema data file
C) extended source file
D) data exclusion file

Accepted Answer

A schema definition file, also known as XSD (XML Schema Definition) file, describes the structure, elements, attributes, and data types of an XML document. It is used to validate XML files and ensure that they conform to a specific structure or schema.

Question 19

When developing applications that work with an intensive amount of data, most developers prefer to use a database management system.

Accepted Answer

Database management systems provide efficient ways to organize, store, and retrieve large amounts of data, making it the preferred choice for developers working on data-intensive applications.

Question 20

If an application needs to store only a small amount of data, sequential and binary files are efficient and easy to use.

Accepted Answer

Sequential and binary files are simple and efficient ways to store small amounts of data, making them easy to use.

Quiz 11: Databases

In SQL, the ____________ requires that both search criteria be true in order for a row to be qualified as a match.

The ____________ identifies a column from the table to display in a ListBox control.

In SQL, the ____________ can be used to search for a substring.

When you use the ____________ in a Select statement, only the rows that meet the search criteria are returned.

In SQL, you use keywords to construct statements, which are also known as ____________.

SQL, which stands for ____________, is a standard language for working with database management systems.

In SQL, the ____________ is used as a wildcard character, and can be used to represent any sequence of zero or more characters.

The ____________ identifies the table from which the data-bound control will get its data.

In SQL, the ____________ calculates the average value in a particular column.

When working with data-bound controls on multiple forms, you can make sure that a dataset contains a current copy of the data by calling the table adapter's ____________.

In SQL, strings are enclosed in ____________.

In SQL, you use the ____________ to retrieve the rows in a table.

If you wish to sort the results of an SQL Select query, you can use the ____________.

SQL provides the ____________ for determining the number of matching rows in a table.

In an SQL statement, a query parameter variable begins with the ____________.

A(n) ____________ is an SQL statement stored in a table adapter object, which can be executed simply by calling a method.

When you click on the ____________ in a data-bound control, a tasks panel will appear, giving you a number of options you can perform.

A ____________ is a file, ending with the .xsd extension, which describes the contents of a dataset.

When developing applications that work with an intensive amount of data, most developers prefer to use a database management system.

If an application needs to store only a small amount of data, sequential and binary files are efficient and easy to use.