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QUESTION 31
Drag and Drop Question
You have a database named Sales that contains the following database tables: Customer, Order, and Products. The Products table and the order table shown in the following diagram.
The Customer table includes a column that stores the date for the last order that the customer placed. You plan to create a table named Leads. The Leads table is expected to contain approximately 20,000 records. Storage requirements for the Leads table must be minimized. You need to begin to modify the table design to adhere to third normal form. Which column should you remove for each table? To answer? drag the appropriate column names to the correct locations. Each column name 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.
Answer:
QUESTION 32
You have a database that contains the following tables: BlogCategory, BlogEntry, ProductReview, Product, and SalesPerson. The tables were created using the following Transact SQL statements:
You must modify the ProductReview Table to meet the following requirements:
1. The table must reference the ProductID column in the Product table.
2. Existing records in the ProductReview table must not be validated with the Product table.
3. Deleting records in the Product table must not be allowed if records are referenced by the ProductReview table.
4. Changes to records in the Product table must propagate to the ProductReview table.
You also have the following database tables: Order, ProductTypes, and SalesHistory, The Transact-SQL statements for these tables are not available. You must modify the Orders table to meet the following requirements:
1. Create new rows in the table without granting INSERT permissions to the table.
2. Notify the sales person who places an order whether or not the order was completed.
You must add the following constraints to the SalesHistory table:
-a constraint on the SaleID column that allows the field to be used as a record identifier.
-a constant that uses the ProductID column to reference the Product column of the ProductTypes table.
-a constraint on the CategoryID column that allows one row with a null value in the column.
-a constraint that limits the Sale Price column to values greater than four.
Finance department users must be able to retrieve data from the SalesHistory table for sales persons where the value of the SalesYTD column is above a certain threshold. You plan to create a memory-optimized table named SalesOrder. The table must meet the following requirements:
– The table must hold 10 million unique sales orders.
– The table must use checkpoints to minimize 1/0 operations and must not use transaction logging.
– Data loss is acceptable.
Performance for queries against the SalesOrder table that use where clauses with exact equality operations must be optimized. You need to enable referential integrity for the ProductReview table. How should you complete the relevant Transact-SQL statement? To answer? select the appropriate Transact-SQL segments in the answer area.
Select two alternatives.
A. For the first selection select: WITH CHECK
B. For the first selection select : WITH NOCHECK
C. For the second selection select: ON DELETE NO ACTION ON UPDATE CASCADE
D. For the second selection select: ON DELETECASCADE ON UPDATE CASCADE
E. For the second selection select: ON DELETE NO ACTION ON UPDATE NO ACTION
F. For the second selection select: ON DELETE CASCADE ON UPDATE NO ACTION
Answer: BC
QUESTION 33
Hotspot Question
You have a database that contains the following tables: BlogCategory, BlogEntry, ProductReview, Product, and SalesPerson. The tables were created using the following Transact SQL statements:
You must modify the ProductReview Table to meet the following requirements:
1. The table must reference the ProductID column in the Product table.
2. Existing records in the ProductReview table must not be validated with the Product table.
3. Deleting records in the Product table must not be allowed if records are referenced by the ProductReview table.
4. Changes to records in the Product table must propagate to the ProductReview table.
You also have the following database tables: Order, ProductTypes, and SalesHistory, The Transact-SQL statements for these tables are not available. You must modify the Orders table to meet the following requirements:
1. Create new rows in the table without granting INSERT permissions to the table.
2. Notify the sales person who places an order whether or not the order was completed.
You must add the following constraints to the SalesHistory table:
-a constraint on the SaleID column that allows the field to be used as a record identifier.
-a constant that uses the ProductID column to reference the Product column of the ProductTypes table.
-a constraint on the CategoryID column that allows one row with a null value in the column.
-a constraint that limits the Sale Price column to values greater than four.
Finance department users must be able to retrieve data from the SalesHistory table for sales persons where the value of the SalesYTD column is above a certain threshold. You plan to create a memory-optimized table named SalesOrder. The table must meet the following requirements:
– The table must hold 10 million unique sales orders.
– The table must use checkpoints to minimize 1/0 operations and must not use transaction logging.
– Data loss is acceptable.
Performance for queries against the SalesOrder table that use where clauses with exact equality operations must be optimized. You need to create an object that allows finance users to be able to retrieve the required data. The object must not have a negative performance impact. How should you complete the Transact-SQL statements? To answer, select the appropriate TransactSQL segments in the answer area.
Answer:
QUESTION 34
You have a reporting database that includes a non-partitioned fact table named Fact_Sales. The table is persisted on disk. Users report that their queries take a long time to complete. The system administrator reports that the table takes too much space in the database. You observe that there are no indexes defined on the table, and many columns have repeating values. You need to create the most efficient index on the table, minimize disk storage and improve reporting query performance. What should you do?
A. Create a clustered index on the table.
B. Create a nonclustered index on the table.
C. Create a nonclustered filtered index on the table.
D. Create a clustered column store index on the table.
E. Create a nonclustered column store index on the table.
F. Create a hash index on the table.
Answer: D
QUESTION 35
You have a database named DB1. The database does not use a memory-optimized filegroup. The database contains a table named Table1. The table must support the following workloads:
You need to add the most efficient index to support the new OLTP workload, while not deteriorating the existing Reporting query performance. What should you do?
A. Create a clustered index on the table.
B. Create a nonclustered index on the table.
C. Create a nonclustered filtered index on the table.
D. Create a clustered column store index on the table.
E. Create a nonclustered column store index on the table.
F. Create a hash index on the table.
Answer: C
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