Microsoft 70-761 Actual Free Exam Questions & Community Discussion
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
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You are creating indexes in a data warehouse.
You have a dimension table named Table1 that has 10,000 rows. The rows are used to generate several reports.
The reports join a column that is the primary key.
The execution plan contains bookmark lookups for Table1.
You discover that the reports run slower than expected.
You need to reduce the amount of time it takes to run the reports.
Solution: You create a hash index on the primary key column.
Does this meet the goal?
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You are creating indexes in a data warehouse.
You have a dimension table named Table1 that has 10,000 rows. The rows are used to generate several reports.
The reports join a column that is the primary key.
The execution plan contains bookmark lookups for Table1.
You discover that the reports run slower than expected.
You need to reduce the amount of time it takes to run the reports.
Solution: You create a hash index on the primary key column.
Does this meet the goal?
Correct Answer: B
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Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a database named DB1 that contains two tables named Sales.Customers and Sales.Orders.
Sales.Customers has a foreign key relationship to a column named CustomerID in SalesOrders.
You need to recommend a query that returns all the customers. The query must also return the number of orders that each customer placed in 2016.
Solution: You recommend the following query:
Does this meet the goal?
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a database named DB1 that contains two tables named Sales.Customers and Sales.Orders.
Sales.Customers has a foreign key relationship to a column named CustomerID in SalesOrders.
You need to recommend a query that returns all the customers. The query must also return the number of orders that each customer placed in 2016.
Solution: You recommend the following query:
Does this meet the goal?
Correct Answer: B
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You need to create a table named Sales that meets the following requirements:
Which Transact-SQL statement should you run?
Which Transact-SQL statement should you run?
Correct Answer: B
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You have a database named DB1 that contains two tables named Sales.Customers and Sales.CustomerTransaction. Sales.CustomerTransactions has a foreign key relationship to column named CustomerID in Sales.Customers.
You need to recommend a query that returns the number of customers who never completed a transaction.
Which query should you recommend?
You need to recommend a query that returns the number of customers who never completed a transaction.
Which query should you recommend?
Correct Answer: D
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You need to create a table named MiscellaneousPayment that meets the following requirements:
Which Transact-SQL statement should you run?
Which Transact-SQL statement should you run?
Correct Answer: D
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Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
You have a database that contains tables named Customer_CRMSystem and Customer_HRSystem. Both tables use the following structure:
The tables include the following records:
Customer_CRMSystem
Customer_HRSystem
Records that contain null values for CustomerCode can be uniquely identified by CustomerName.
You need to display a Cartesian product, combining both tables.
Which Transact-SQL statement should you run?
You have a database that contains tables named Customer_CRMSystem and Customer_HRSystem. Both tables use the following structure:
The tables include the following records:
Customer_CRMSystem
Customer_HRSystem
Records that contain null values for CustomerCode can be uniquely identified by CustomerName.
You need to display a Cartesian product, combining both tables.
Which Transact-SQL statement should you run?
Correct Answer: D
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Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.
You are developing a database to track customer orders. The database contains the following tables:
Sales.Customers, Sales.Orders, and Sales.OrderLines.
The following table describes the columns in Sales.Customers.
The following table describes the columns in Sales.Orders.
You need to design an indexed view to return customer information.
What are the requirements for creating an indexed view? Use the drop-down menus to select the answer choice that completes each statement.
You are developing a database to track customer orders. The database contains the following tables:
Sales.Customers, Sales.Orders, and Sales.OrderLines.
The following table describes the columns in Sales.Customers.
The following table describes the columns in Sales.Orders.
You need to design an indexed view to return customer information.
What are the requirements for creating an indexed view? Use the drop-down menus to select the answer choice that completes each statement.
Correct Answer:
Explanation
Box 1: Deterministic
The definition of an indexed view must be deterministic. A view is deterministic if all expressions in the select list, as well as the WHERE and GROUP BY clauses, are deterministic.
Box 2: SCHEMABINDING
Create the view by using the WITH SCHEMABINDING option.
Box 3: unique clustered
The first index created on a view must be a unique clustered index.
References: https://docs.microsoft.com/en-us/sql/relational-databases/views/create-indexed-views
Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
You have a database that contains tables named Customer_CRMSystem and Customer_HRSystem. Both tables use the following structure:
The tables include the following records:
Customer_CRMSystem
Customer_HRSystem
Records that contain null values for CustomerCode can be uniquely identified by CustomerName.
You need to create a list of all unique customers that appear in either table.
Which Transact-SQL statement should you run?
You have a database that contains tables named Customer_CRMSystem and Customer_HRSystem. Both tables use the following structure:
The tables include the following records:
Customer_CRMSystem
Customer_HRSystem
Records that contain null values for CustomerCode can be uniquely identified by CustomerName.
You need to create a list of all unique customers that appear in either table.
Which Transact-SQL statement should you run?
Correct Answer: G
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Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You create a table named Customer by running the following Transact-SQL statement:
You create a cursor by running the following Transact-SQL statement:
If the credit limit is zero, you must delete the customer record while fetching data.
You need to add the DELETE statement.
Solution: You add the following Transact-SQL statement:
Does the solution meet the goal?
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You create a table named Customer by running the following Transact-SQL statement:
You create a cursor by running the following Transact-SQL statement:
If the credit limit is zero, you must delete the customer record while fetching data.
You need to add the DELETE statement.
Solution: You add the following Transact-SQL statement:
Does the solution meet the goal?
Correct Answer: A
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Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
Multiple processes use the data from a table named Sales and place it in other databases across the organization. Some of the processes are not completely aware of the data types in the Sales table. This leads to data type conversion errors.
You need to implement a method that returns a NULL value id data conversion fails instead of throwing an error.
What should you implement?
Multiple processes use the data from a table named Sales and place it in other databases across the organization. Some of the processes are not completely aware of the data types in the Sales table. This leads to data type conversion errors.
You need to implement a method that returns a NULL value id data conversion fails instead of throwing an error.
What should you implement?
Correct Answer: E
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You are a database administrator for an online retail store. You create a table to track orders by running the following Transact-SQL statement:
You are developing a query that will be used as a JSON data source for a web application. The web application requires JSON in the following format:
You are developing a query that will be used as a JSON data source for a web application. The web application requires JSON in the following format:
Correct Answer:
Explanation
Box 1: Order.Date
In PATH mode, you can use the dot syntax - for example, 'Item.UnitPrice' - to format nested output.
Here's a sample query that uses PATH mode with the FOR JSON clause. The following example also uses the ROOT option to specify a named root element.
Box 2: JSON_VALUE(LineTotal)
JSON_VALUE extracts a scalar value from a JSON string.
Box 3: Order.Product
Box 4: FOR JSON PATH
When you use the FOR JSON clause, you can specify the structure of the JSON output explicitly, or let the structure of the SELECT statement determine the output.
To maintain full control over the format of the JSON output, use FOR JSON PATH. You can create wrapper objects and nest complex properties.
To format the JSON output automatically based on the structure of the SELECT statement, use FOR JSON AUTO.
Box 5: FOR JSON PATH, ROOT('ORDER)
Use the ROOT option to specify a named root element.
References:
https://docs.microsoft.com/en-us/sql/relational-databases/json/format-query-results-as-json-with-for-json-sql-serv
https://docs.microsoft.com/en-us/sql/t-sql/functions/json-value-transact-sql
Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.
Start of repeated scenario
You have a database that contains the tables shown in the exhibit. (Click the Exhibit button.)
You review the Employee table and make the following observations:
- Every record has a value in the ManagerID except for the Chief Executive Officer (CEO).
- The FirstName and MiddleName columns contain null values for some records.
- The valid values for the Title column are Sales Representative manager, and CEO.
You review the SalesSummary table and make the following observations:
- The ProductCode column contains two parts: The first five digits represent a product code, and the last seven digits represent the unit price. The unit price uses the following pattern: ####.##.
- You observe that for many records, the unit price portion of the ProductCode column contains values.
- The RegionCode column contains NULL for some records.
- Sales data is only recorded for sales representatives.
You are developing a series of reports and procedures to support the business. Details for each report or procedure follow.
Sales Summary report: This report aggregates data by year and quarter. The report must resemble the following table.
Sales Manager report: This report lists each sales manager and the total sales amount for all employees that report to the sales manager.
Sales by Region report: This report lists the total sales amount by employee and by region. The report must include the following columns: EmployeeCode, MiddleName, LastName, RegionCode, and SalesAmount. If MiddleName is NULL, FirstName must be displayed. If both FirstName and MiddleName have null values, the world Unknown must be displayed/ If RegionCode is NULL, the word Unknown must be displayed.
Report1: This report joins data from SalesSummary with the Employee table and other tables. You plan to create an object to support Report1. The object has the following requirements:
- be joinable with the SELECT statement that supplies data for the report
- can be used multiple times with the SELECT statement for the report
- be usable only with the SELECT statement for the report
- not be saved as a permanent object
Report2: This report joins data from SalesSummary with the Employee table and other tables.
You plan to create an object to support Report1. The object has the following requirements:
Sales Hierarchy report. This report aggregates rows, creates subtotal rows, and super-aggregates rows over the SalesAmount column in a single result-set. The report uses SaleYear, SaleQuarter, and SaleMonth as a hierarchy. The result set must not contain a grand total or cross-tabulation aggregate rows.
Current Price Stored Procedure: This stored procedure must return the unit price for a product when a product code is supplied. The unit price must include a dollar sign at the beginning. In addition, the unit price must contain a comma every three digits to the left of the decimal point, and must display two digits to the left of the decimal point. The stored procedure must not throw errors, even if the product code contains invalid data.
End of Repeated Scenario
You are creating the queries for Report1 and Report2.
You need to create the objects necessary to support the queries.
Which object should you use to join the SalesSummary table with the other tables that each report uses? To answer, drag the appropriate objects to the correct reports. each object may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Start of repeated scenario
You have a database that contains the tables shown in the exhibit. (Click the Exhibit button.)
You review the Employee table and make the following observations:
- Every record has a value in the ManagerID except for the Chief Executive Officer (CEO).
- The FirstName and MiddleName columns contain null values for some records.
- The valid values for the Title column are Sales Representative manager, and CEO.
You review the SalesSummary table and make the following observations:
- The ProductCode column contains two parts: The first five digits represent a product code, and the last seven digits represent the unit price. The unit price uses the following pattern: ####.##.
- You observe that for many records, the unit price portion of the ProductCode column contains values.
- The RegionCode column contains NULL for some records.
- Sales data is only recorded for sales representatives.
You are developing a series of reports and procedures to support the business. Details for each report or procedure follow.
Sales Summary report: This report aggregates data by year and quarter. The report must resemble the following table.
Sales Manager report: This report lists each sales manager and the total sales amount for all employees that report to the sales manager.
Sales by Region report: This report lists the total sales amount by employee and by region. The report must include the following columns: EmployeeCode, MiddleName, LastName, RegionCode, and SalesAmount. If MiddleName is NULL, FirstName must be displayed. If both FirstName and MiddleName have null values, the world Unknown must be displayed/ If RegionCode is NULL, the word Unknown must be displayed.
Report1: This report joins data from SalesSummary with the Employee table and other tables. You plan to create an object to support Report1. The object has the following requirements:
- be joinable with the SELECT statement that supplies data for the report
- can be used multiple times with the SELECT statement for the report
- be usable only with the SELECT statement for the report
- not be saved as a permanent object
Report2: This report joins data from SalesSummary with the Employee table and other tables.
You plan to create an object to support Report1. The object has the following requirements:
Sales Hierarchy report. This report aggregates rows, creates subtotal rows, and super-aggregates rows over the SalesAmount column in a single result-set. The report uses SaleYear, SaleQuarter, and SaleMonth as a hierarchy. The result set must not contain a grand total or cross-tabulation aggregate rows.
Current Price Stored Procedure: This stored procedure must return the unit price for a product when a product code is supplied. The unit price must include a dollar sign at the beginning. In addition, the unit price must contain a comma every three digits to the left of the decimal point, and must display two digits to the left of the decimal point. The stored procedure must not throw errors, even if the product code contains invalid data.
End of Repeated Scenario
You are creating the queries for Report1 and Report2.
You need to create the objects necessary to support the queries.
Which object should you use to join the SalesSummary table with the other tables that each report uses? To answer, drag the appropriate objects to the correct reports. each object may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Correct Answer:
Explanation
Box 1: common table expression (CTE)
A common table expression (CTE) can be thought of as a temporary result set that is defined within the execution scope of a single SELECT, INSERT, UPDATE, DELETE, or CREATE VIEW statement. A CTE is similar to a derived table in that it is not stored as an object and lasts only for the duration of the query. Unlike a derived table, a CTE can be self-referencing and can be referenced multiple times in the same query.
A CTE can be used to:
From Scenario: Report1: This report joins data from SalesSummary with the Employee table and other tables.
You plan to create an object to support Report1. The object has the following requirements:
Box 2: view
From scenario: Report2: This report joins data from SalesSummary with the Employee table and other tables.
You plan to create an object to support Report1. The object has the following requirements:
References: https://technet.microsoft.com/en-us/library/ms190766(v=sql.105).aspx
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