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Free demo questions for Microsoft 70-762 Exam Dumps Below:

NEW QUESTION 1
You are reviewing the execution plans in the query plan cache. You observe the following:
- There are a large number of single use plans.
- There are a large number of simple execution plans that use multiple CPU cores. You need to configure the server to optimize query plan execution.
Which two setting should you modify on the properties page for the Microsoft SQL Server instance? To answer, select the appropriate settings in the answer area.
70-762 dumps exhibit

    Answer:

    Explanation: * Optimize for ad hoc workloads
    The optimize for ad hoc workloads option is used to improve the efficiency of the plan cache for workloads that contain many single use ad hoc batches. When this option is set to 1, the Database Engine stores a small compiled plan stub in the plan cache when a batch is compiled for the first time, instead of the full compiled plan. This helps to relieve memory pressure by not allowing the plan cache to become filled with compiled plans that are not reused.
    * Cost Threshold for Parallelism
    Use the cost threshold for parallelism option to specify the threshold at which Microsoft SQL Server creates and runs parallel plans for queries. SQL Server creates and runs a parallel plan for a query only when the estimated cost to run a serial plan for the same query is higher than the value set in cost threshold for parallelism. The cost refers to an estimated elapsed time in seconds required to run the serial plan on a specific hardware configuration.
    5 means 5 seconds, but is is 5 seconds on a machine internal to Microsoft from some time in the 1990s. There's no way to relate it to execution time on your current machine, so we treat it as a pure number now. Raising it to 50 is a common suggestion nowadays, so that more of your simpler queries run on a single thread.

    NEW QUESTION 2
    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 questions 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 that is 130 GB and contains 500 million rows of data.
    Granular transactions and mass batch data imports change the database frequently throughout the day. Microsoft SQL Server Reporting Services (SSRS) uses the database to generate various reports by using several filters.
    You discover that some reports time out before they complete. You need to reduce the likelihood that the reports will time out.
    Solution: You create a file group for the indexes and a file group for the data files. You store the files for each file group on separate disks.
    Does this meet the goal?

    • A. Yes
    • B. No

    Answer: A

    Explanation: Consider creating two additional File Groups: Tables and Indexes. It is best not to put your stuff in PRIMARY as that is where SQL SERVER stores all of its data and meta-data about your objects. You create your Table and Clustered Index (as that is the data for the table) on [Tables] and all Non-Clustered indexes on [Indexes].

    NEW QUESTION 3
    You are developing an application that connects to a database. The application runs the following jobs:
    70-762 dumps exhibit
    The READ_COMMITTED_SNAPSHOT database option is set to OFF, and auto-content is set to ON. Within the stored procedures, no explicit transactions are defined.
    If JobB starts before JobA, it can finish in seconds. If JobA starts first, JobB takes a long time to complete. You need to use Microsoft SQL Server Profiler to determine whether the blocking that you observe in JobB is caused by locks acquired by JobA.
    Which trace event class in the Locks event category should you use?

    • A. LockAcquired
    • B. LockCancel
    • C. LockDeadlock
    • D. LockEscalation

    Answer: A

    Explanation: The Lock:Acquired event class indicates that acquisition of a lock on a resource, such as a data page, has been achieved.
    The Lock:Acquired and Lock:Released event classes can be used to monitor when objects are being locked, the type of locks taken, and for how long the locks were retained. Locks retained for long periods of time may cause contention issues and should be investigated.

    NEW QUESTION 4
    Note: This question is part of a series of questions that present the same scenario. Each question in this series contains a unique solution. Determine whether the solution meets the stated goals.
    You are developing a new application that uses a stored procedure. The stored procedure inserts thousands of records as a single batch into the Employees table.
    Users report that the application response time has worsened since the stored procedure was updated. You examine disk-related performance counters for the Microsoft SQL Server instance and observe several high values that include a disk performance issue. You examine wait statistics and observe an unusually high WRITELOG value.
    You need to improve the application response time.
    Solution: You replace the stored procedure with a user-defined function. Does the solution meet the goal?

    • A. Yes
    • B. No

    Answer: B

    Explanation: References: https://msdn.microsoft.com/en-us/library/ms345075.aspx

    NEW QUESTION 5
    You need to implement triggers to automate responses to the following events:
    SQL Server logons
    Database schema changes
    Database updates
    Which trigger types should you use? To answer, drag the appropriate trigger types to the appropriate scenarios. Each trigger type 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.
    NOTE: Each correct selection is worth one point.
    70-762 dumps exhibit

      Answer:

      Explanation: Box 1: LOGON
      Logon triggers fire stored procedures in response to a LOGON event. This event is raised when a user session is established with an instance of SQL Server.
      Box 2: INSTEAD OF INSERT
      An "INSTEAD of trigger" is executed instead of the original operation, and not combining with the operation. INSTEAD OF triggers override the standard actions of the triggering statement. It can be used to bypass the statement and execute a whole different statement, or just help us check and examine the data before the action is done.
      Box 3: DDL
      DDL statements (CREATE or ALTER primarily) issued either by a particular schema/user or by any schema/user in the database
      Note:
      You can write triggers that fire whenever one of the following operations occurs:
      DML statements (INSERT, UPDATE, DELETE) on a particular table or view, issued by any user
      DDL statements (CREATE or ALTER primarily) issued either by a particular schema/user or by any schema/user in the database
      Database events, such as logon/logoff, errors, or startup/shutdown, also issued either by a particular schema/user or by any schema/user in the database
      References: https://docs.oracle.com/cd/B19306_01/server.102/b14220/triggers.htm
      https://social.technet.microsoft.com/wiki/contents/articles/28152.t-sql-instead-of-triggers.aspx https://docs.microsoft.com/en-us/sql/relational-databases/triggers/logon-triggers?view=sql-server-2021

      NEW QUESTION 6
      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 have a database that contains the following tables: BlogCategory, BlogEntry, ProductReview, Product, and SalesPerson. The tables were created using the following Transact SQL statements:
      70-762 dumps exhibit
      You must modify the ProductReview Table to meet the following requirements:
      * The table must reference the ProductID column in the Product table
      * Existing records in the ProductReview table must not be validated with the Product table.
      * Deleting records in the Product table must not be allowed if records are referenced by the ProductReview table.
      * 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:
      * Create new rows in the table without granting INSERT permissions to the table.
      * 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 SalePrice 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 I/O 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 modify the design of the Orders table. What should you create?

      • A. a stored procedure with the RETURN statement
      • B. a FOR UPDATE trigger
      • C. an AFTER UPDATE trigger
      • D. a user defined function

      Answer: D

      Explanation: Requirements: 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. References: https://msdn.microsoft.com/en-us/library/ms186755.aspx

      NEW QUESTION 7
      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 the series. Information and details provided in a question apply only to that question.
      You are developing an application to track customer sales.
      You need to create a database object that meets the following requirements:
      - Return a value of 0 if data is inserted successfully into the Customers table.
      - Return a value of 1 if data is not inserted successfully into the Customers table.
      - Support logic that is written by using managed code.
      - Support TRY…CATCH error handling. What should you create?

      • A. extended procedure
      • B. CLR procedure
      • C. user-defined procedure
      • D. DML trigger
      • E. scalar-valued function
      • F. table-valued function

      Answer: D

      Explanation: DML triggers is a special type of stored procedure that automatically takes effect when a data manipulation language (DML) event takes place that affects the table or view defined in the trigger. DML events include INSERT, UPDATE, or DELETE statements. DML triggers can be used to enforce business rules and data integrity, query other tables, and include complex Transact-SQL statements.
      References: https://msdn.microsoft.com/en-us/library/ms178110.aspx

      NEW QUESTION 8
      Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution. Determine whether the solution meets the stated goals.
      You have a database named DB1 that includes a table named Sales-Orders. You grant a user named User1 select permissions on the sales schema.
      You need to ensure that User1 can select data from the sales .orders table without specifying the schema name in any Transact-SQL statements.
      Solution: You create a stored procedure in the sales schema that selects the data from the sales. orders table.
      Does the solution meet the goal?

      • A. Yes
      • B. No

      Answer: A

      NEW QUESTION 9
      You are creating a stored procedure which will insert data into the table shown in the Database schema exhibit. (Click the exhibit button.)
      70-762 dumps exhibit
      You need to insert a new customer record into the tables as a single unit of work.
      In which order should you use the Transact-SQL segments to develop the solution? To answer, move the appropriate Transact-SQL segments to the answer area and arrange the, in the correct order.
      NOTE: More than one order of answer choices is correct. You will receive credit for any of the correct orders you select.
      70-762 dumps exhibit

        Answer:

        Explanation: The entities on the many side, of the 1-many relations, must be added before we add the entities on the 1-side.
        We must insert new rows into BusinessEntityContact and BusinessEntityAddress tables, before we insert the corresponding rows into the BusinessEntity and AddressType tables.

        NEW QUESTION 10
        You manage a database that includes the tables shown in the exhibit (Click the Exhibit button.)
        70-762 dumps exhibit
        You plan to create a DML trigger that reads the value of the LineTotal column for each row in the PurchaseOrderDetail table. The trigger must add the value obtained to the value in the SubTotal column of the PurchaseOrderHeader table.
        You need to organize the list to form the appropriate Transact-SQL statement.
        Which five Transact-SQL segments should you use to develop the solution? To answer, move the appropriate Transact-SQL segments from the list of Transact-SQL segments to the answer area and arrange them in the correct order.
        70-762 dumps exhibit

          Answer:

          Explanation: 70-762 dumps exhibit

          NEW QUESTION 11
          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.
          70-762 dumps exhibit
          You have a Microsoft SQL Server database named DB1 that contains the following tables: You frequently run the following queries:
          70-762 dumps exhibit
          There are no foreign key relationships between TBL1 and TBL2.
          You need to minimize the amount of time required for the two queries to return records from the tables. What should you do?

          • A. Create clustered indexes on TBL1 and TBL2.
          • B. Create a clustered index on TBL1 Create a nonclustered index on tbl2 and add the most frequently queried columns as included columns.
          • C. Create a nonclustered index on tbl2 only.
          • D. Create unique constraints on both TBL1 and TBL2. Create a partitioned view that combines columns from TBL1 and TBL2.
          • E. Drop existing indexes on TBL1 and then create a clustered columnstore inde
          • F. Create a nonclustered columnstore index on TBL1. Create a nonclustered index on TBL2.
          • G. Drop existing indexes on TBL1 and then create a cluwered columnstore inde
          • H. Create a nonclustered columnstore index on TBL1. Make no changes to TBL2.
          • I. Create check constraints on both TBL1 and tbl2. Create a partitioned view that combines columns from TBL1 and tbl2.
          • J. Create an indexed view that combines columns from TBL1 and TBL2.

          Answer: F

          NEW QUESTION 12
          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 have a database named Sales that contains the following database tables: Customer, Order, and Products. The Products table and the Order table are shown in the following diagram.
          70-762 dumps exhibit
          The customer table includes a column that stores the data 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.
          The Leads table must include the columns described in the following table.
          70-762 dumps exhibit
          The data types chosen must consume the least amount of storage possible. You need to select the appropriate data types for the Leads table.
          In the table below, identify the data type that must be used for each table column. NOTE: Make only one selection in each column.
          70-762 dumps exhibit

            Answer:

            Explanation: Bit is a Transact-SQL integer data type that can take a value of 1, 0, or NULL.
            Smallint is aT ransact-SQL integer data type that can take a value in the range from -32,768 to 32,767. int, bigint, smallint, and tinyint (Transact-SQL)
            Exact-number data types that use integer data.
            70-762 dumps exhibit
            References: https://msdn.microsoft.com/en-us/library/ms187745.aspx https://msdn.microsoft.com/en-us/library/ms177603.aspx

            NEW QUESTION 13
            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 named DB1. There is no memory-optimized filegroup in the database.
            You have a table and a stored procedure that were created by running the following Transact-SQL statements:
            70-762 dumps exhibit
            The Employee table is persisted on disk. You add 2,000 records to the Employee table. You need to create an index that meets the following requirements:
            - Optimizes the performance of the stored procedure.
            - Covers all the columns required from the Employee table.
            - Uses FirstName and LastName as included columns.
            - Minimizes index storage size and index key size. 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 columnstore index on the table.
            • E. Create a nonclustered columnstore index on the table.
            • F. Create a hash index on the table.

            Answer: B

            Explanation: References: https://technet.microsoft.com/en-us/library/jj835095(v=sql.110).aspx

            NEW QUESTION 14
            You manage a database with tables named Invoice and InvoiceDetails. Each invoice may have multiple records.
            Users update the InvoiceDetails table by using a .NET web application. The application retrieves records from both tables and updates the tables by running an inline update statement.
            Users experience slow performance when updating records in the application. The solution must meet the following requirements:
            Must use a stored procedure.
            Must not use inline update statements
            Must use a table-valued parameter.
            Must call the stored procedure to update all records. You need to optimize performance.
            Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
            70-762 dumps exhibit

              Answer:

              Explanation: Box 1: Create a user-defined table type…
              Table-valued parameters are declared by using user-defined table types. You can use table-valued parameters to send multiple rows of data to a Transact-SQL statement or a routine, such as a stored procedure or function, without creating a temporary table or many parameters.
              Box 2: ..read-only input parameter.
              Table-valued parameters must be passed as input READONLY parameters to Transact-SQL routines. Box 3:
              Example
              The following example uses Transact-SQL and shows you how to create a table-valued parameter type, declare a variable to reference it, fill the parameter list, and then pass the values to a stored procedure.
              USE AdventureWorks2012;
              /* Create a table type. */
              CREATE TYPE LocationTableType AS TABLE ( LocationName VARCHAR(50)
              , CostRate INT ); GO
              /* Create a procedure to receive data for the table-valued parameter. */ CREATE PROCEDURE dbo. usp_InsertProductionLocation
              @TVP LocationTableType READONLY Etc.¨
              /* Declare a variable that references the type. */ DECLARE @LocationTVP AS LocationTableType;
              /* Add data to the table variable. */
              INSERT INTO @LocationTVP (LocationName, CostRate) SELECT Name, 0.00
              FROM AdventureWorks2012.Person.StateProvince;
              /* Pass the table variable data to a stored procedure. */ EXEC usp_InsertProductionLocation @LocationTVP; GO
              References:
              https://docs.microsoft.com/en-us/sql/relational-databases/tables/use-table-valued-parameters-database-engine?vi

              NEW QUESTION 15
              You have multiple stored procedures inside a transaction.
              You need to ensure that all the data modified by the transaction is rolled back if a stored procedure causes a deadlock or times out.
              What should you do?

              • A. Use the NOLOCK option.
              • B. Execute the DBCC UPDATEUSAGE statement.
              • C. Use the max worker threads Option.
              • D. Use a table-valued parameter.
              • E. Set SET ALLOW SNAPSHOT ISOLATION to ON,
              • F. Set SET XACT ABORT to ON.
              • G. Execute the alter table T1 set (lock escalation = auto); statement.
              • H. Use the output parameters.

              Answer: B

              NEW QUESTION 16
              You are developing a stored procedure with the following requirements:
              *Accepts an integer as input and inserts the value into a table.
              *Ensures new transactions are committed as part of the outer transactions.
              *Preserves existing transactions if the transaction in the procedure fails.
              *If the transaction in the procedure fails, rollback the transaction.
              How should you complete the procedure? To answer, select the appropriate options in the answer area.
              NOTE: Each correct selection is worth one point.
              70-762 dumps exhibit

                Answer:

                Explanation: 70-762 dumps exhibit
                70-762 dumps exhibit
                70-762 dumps exhibit

                NEW QUESTION 17
                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 the series.
                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.
                70-762 dumps exhibit
                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.
                70-762 dumps exhibit

                  Answer:

                  Explanation: In the Products table the SupplierName is dependent on the SupplierID, not on the ProductID. In the Orders table the ProductName is dependent on the ProductID, not on the OrderID. Note:
                  A table is in third normal form when the following conditions are met:
                  * It is in second normal form.
                  * All non-primary fields are dependent on the primary key.
                  Second normal form states that it should meet all the rules for First 1Normnal Form and there must be no partial dependencies of any of the columns on the primary key.
                  First normal form (1NF) sets the very basic rules for an organized database:
                  * Define the data items required, because they become the columns in a table. Place related data items in a table.
                  * Ensure that there are no repeating groups of data.
                  * Ensure that there is a primary key.
                  References: https://www.tutorialspoint.com/sql/third-normal-form.htm

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