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Recertification for MCSE: Data Platform

Question No: 101 DRAG DROP – (Topic 10)

You need to create a job to automate some database maintenance tasks.

Which code fragment should you use in each location in the command to complete one of the commands you will need to include in the job? To answer, drag the appropriate lines of code to the correct locations in the command. Each line of code 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.

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Answer:

Dumps4Cert 2018 PDF and VCE

Dumps4Cert 2018 PDF and VCE

Explanation:

Note:

UPDATE STATISTICS WITH FULLSCAN NORECOMPUTE

Update statistics by using FULLSCAN and NORECOMPUTE

The following example updates the Products statistics in the Product table, forces a full scan of all rows in the Product table, and turns off automatic statistics for the Products statistics.

USE AdventureWorks2012; GO

UPDATE STATISTICS Production.Product(Products) WITH FULLSCAN, NORECOMPUTE;

GO

UPDATE STATISTICS (Transact-SQL)

Question No: 102 – (Topic 10)

You need to configure security on the Product table for customer support representatives.

Which two actions should you perform? Each correct answer presents part of the solution. Choose two.

  1. Create a view called CustProduct that includes columns ProductID. ProductName, Product Description, QuantityOnHand, ProductPrice, ProductCost, and ProductSupplierID.

  2. GRANT ALL on CustProduct TO OurDomain\CustomerSupport

  3. Create a user-defined data type called CustProduct that includes columns ProductID, ProductName, Product Description, and ProductPrice.

  4. Create a view called CustProduct that includes columns ProductID, ProductName, Product Description, QuantityOnHand, and ProductPrice.

  5. GRANT SELECT on CustProduct TO OurDomain\CustomerSupport.

  6. GRANT SELECT on CustProduct TO public.

Answer: A,E

Explanation: Give access to CustomerSupport through a view. The view must include all these columns (refer to scenario).

GRANT Object Permissions (Transact-SQL)

Question No: 103 – (Topic 10)

You need to write code that will allow the sales force to retrieve data for their reports with the least amount of effort.

Which code should you use?

Dumps4Cert 2018 PDF and VCE

  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: A Explanation: * Scenario:

/ During your investigation, you discover that the sales force reports are causing significant contention.

/ Sales force data access

Sales people at both the headquarters office and the satellite office must generate reports that read from the Product and SalesOrderDetail tables. No updates or inserts are ever made by sales people. These reports are run at random times and there can be no reporting downtime to refresh the data set except during the monthly maintenance window. The reports that run from the satellite office are process intensive queries with large data sets. Regardless of which office runs a sales force report, the SalesOrderDetail table should only return valid, committed order data; any orders not yet committed should be ignored.

Question No: 104 – (Topic 10)

You need to implement a backup strategy to support the requirements.

Which two actions should you perform? Each correct answer presents part of the solution. Choose two.

  1. Create a credential called MyCredential on SQL Server by using a Windows domain account and password.

  2. Schedule a full backup by using the command BACKUP DATABASE ProdDB TO DISK…

  3. Create a share on your Windows Azure site by using your Windows Azure storage account information, and grant permission to the SQL Server service login.

  4. Schedule a full backup by using the command BACKUP DATABASE ProdDB TO URL

    … WTTH CREDENTIAL=N#39;MyCredential#39;

  5. Create a share on the hot standby site and grant permission to the SQL Server service login.

  6. Create a credential called MyCredential on SQL Server, using MyStorageAccount for the storage account name and StorageAccountKey for the access key.

  7. Schedule a full backup by using the command BACKUP DATABASE ProdDB TO SHARE … WITH CREDENTIAL=N#39; MyCredential#39;

Answer: C,D

Explanation: * Scenario: The current nightly backups have been failing due to insufficient space on the available drives and manual drive cleanup often needing to happen to get past the errors. Additional space will not be made available for backups on the HQ or satellite servers.

  • Need to store files in the cloud.

  • Manage your backups to Windows Azure: Using the same methods used to backup to DISK and TAPE, you can now back up to Windows Azure storage by Specifying URL as the backup destination. You can use this feature to manually backup or configure your own backup strategy like you would for a local storage or other off-site options. This feature is also referred to as SQL Server Backup to URL.

  • SQL Server Managed Backup to Windows Azure

    Question No: 105 – (Topic 10)

    You need to implement changes to the system to reduce contention and improve

    performance of the SalesOrderDetail table.

    Which three actions should you perform? Each correct answer presents part of the solution. Choose three.

    1. Use (SNAPSHOT] hints in the report queries

    2. ALTER DATABASE [ProdDB] SET READ_COMMITTED_SNAPSHOT ON

    3. ALTER DATABASE [ProdDB] SET READ_COMMITTED_SNAPSHOT OFF

    4. SET TRANSACTION ISOLATION LEVEL SNAPSHOT

    5. Use (TABLOCK) hints in the report queries

    6. SET TRANSACTION ISOLATION LEVEL SERIALIZABLE

    7. ALTER DATABASE [ProdDB] SET ALLOW.SNAPSHOT ISOLATION ON

    8. Use (SNAPSHOT] hints in the update statements

    Answer: A,B,F Explanation: * Scenario:

    The SalesOrderDetail table holds the details about each sale. It is in the Sales schema owned by the SalesStaff Windows group.

    This table is constantly being updated, inserted into, and read.

    • Regardless of which office runs a sales force report, the SalesOrderDetail table should only return valid, committed order data; any orders not yet committed should be ignored.

    • READ_COMMITTED_SNAPSHOT { ON | OFF } ON

    Enables Read-Committed Snapshot option at the database level. When it is enabled, DML statements start generating row versions even when no transaction uses Snapshot Isolation. Once this option is enabled, the transactions specifying the read committed isolation level use row versioning instead of locking. When a transaction runs at the read committed isolation level, all statements see a snapshot of data as it exists at the start of the statement.

    OFF

    Turns off Read-Committed Snapshot option at the database level. Transactions specifying the READ COMMITTED isolation level use locking.

    ALTER DATABASE SET Options (Transact-SQL) SET Statements (Transact-SQL)

    Question No: 106 DRAG DROP – (Topic 10)

    You need to distribute functionality across the three servers.

    Which function should you assign to each server? To answer, drag the appropriate functions to the correct servers. Each function 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.

    Dumps4Cert 2018 PDF and VCE

    Answer:

    Dumps4Cert 2018 PDF and VCE

    Explanation:

    Dumps4Cert 2018 PDF and VCE

    Note:

    • Scenario: The current nightly backups have been failing due to insufficient space on the available drives and manual drive cleanup often needing to happen to get past the errors. Additional space will not be made available for backups on the HQ or satellite servers. http://msdn.microsoft.com/en-us/library/ff877884.aspx

      Topic 11, A.Datum Overview

      General Overview

      A. Datum Corporation has offices in Miami and Montreal.

      The network contains a single Active Directory forest named adatum.com. The offices connect to each other by using a WAN link that has a 5-ms latency.

      A. Datum standardizes its database platform by using SQL Server 2014 Standard edition.

      Databases

      Each office contains databases named Sales. Inventory, Customers, Products, Personnel, and Dev.

      Servers and databases are managed by a team of database administrators. Currently, all of the database administrators have the same level of permissions on all of the servers and all of the databases.

      The Customers database contains two tables named Customers and Classifications. The following graphic shows the relevant portions of the tables:

      Dumps4Cert 2018 PDF and VCE

      The following table shows the current data in the Classifications table:

      Dumps4Cert 2018 PDF and VCE

      The Inventory database is used mainly for reports. The database is recreated every day. A full backup of the database currently takes three hours to complete.

      Stored Procedures

      A stored procedure named USP_1 generates millions of rows of data for multiple reports. USP_1 combines data from five different tables from the Sales and Customers databases in a table named Table1.

      After Table1 is created, the reporting process reads data from a table in the Products database and searches for information in Table1 based on input from the Products table. After the process is complete, Table1 is deleted.

      A stored procedure named USP_2 is used to generate a product list. USP_2 takes several minutes to run due to locks on the tables the procedure accesses.

      A stored procedure named USP_3 is used to update prices. USP_3 is composed of several UPDATE statements called in sequence from within a transaction. Currently, if one of the UPDATE statements fails, the stored procedure continues to execute.

      A stored procedure named USP_4 calls stored procedures in the Sales, Customers, and Inventory databases. The nested stored procedures read tables from the Sales, Customers, and Inventory databases. USP_4 uses an EXECUTE AS clause.

      A stored procedure named USP_5 changes data in multiple databases. Security checks are performed each time USP_5 accesses a database.

      You suspect that the security checks are slowing down the performance of USP_5.

      All stored procedures accessed by user applications call nested stored procedures. The nested stored procedures are never called directly.

      Design Requirements Data Recovery

      You must be able to recover data from the Inventory database if a storage failure occurs.

      You have a Recovery Point Objective (RPO) of one hour.

      You must be able to recover data from the Dev database if data is lost accidentally. You have a Recovery Point Objective (RPO) of one day.

      Classification Changes

      You plan to change the way customers are classified. The new classifications will have four levels based on the number of orders. Classifications may be removed or added in the future.

      Management requests that historical data be maintained for the previous classifications.

      Security

      A group of junior database administrators must be able to view the server state of the SQL Server instance that hosts the Sales database. The junior database administrators will not have any other administrative rights.

      A. Datum wants to track which users run each stored procedure.

      Storage

      A. Datum has limited storage. Whenever possible, all storage space should be minimized for all databases and all backups.

      Error Handling

      There is currently no error handling code in any stored procedure. You plan to log errors in called stored procedures and nested stored procedures. Nested stored procedures are never called directly.

      Question No: 107 – (Topic 11)

      You need to recommend a solution for the planned changes to the customer classifications.

      What should you recommend? (Each correct answer presents part of the solution. Choose all that apply.)

      1. Add a row to the Customers table each time a classification changes.

      2. Add columns for each classification to the Customers table.

      3. Add a table to track any changes made to the classification of each customer.

      4. Add a column to the Classifications table to track the status of each classification.

      5. Implement change data capture.

      Answer: C,D

      Explanation: * scenario: You plan to change the way customers are classified. The new classifications will have four levels based on the number of orders. Classifications may be removed or added in the future.

      Incorrect:

      not E: Change data capture provides information about DML changes on a table and a database. By using change data capture, you eliminate expensive techniques such as user triggers, timestamp columns, and join queries.

      Question No: 108 – (Topic 11)

      You need to recommend a change to USP_3 to ensure that the procedure completes only if all of the UPDATE statements complete.

      Which change should you recommend?

      1. Set the XACT_ABORT option to off

      2. Set the XACT_ABORT option to on.

      3. Set the IMPLICIT_TRANSACTIONS option to off.

      4. Set the IMPLICIT_TRANSACTIONS option to on.

      Answer: B

      Explanation: * Scenario: A stored procedure named USP_3 is used to update prices. USP_3 is composed of several UPDATE statements called in sequence from within a transaction. Currently, if one of the UPDATE statements fails, the stored procedure continues to execute.

    • When SET XACT_ABORT is ON, if a Transact-SQL statement raises a run-time error, the entire transaction is terminated and rolled back.

    Question No: 109 – (Topic 11)

    You need to recommend a change to USP_3 to ensure that the procedure continues to execute even if one of the UPDATE statements fails.

    Which change should you recommend?

    1. Set the XACT_ABORT option to off.

    2. Set the XACT_ABORT option to on.

    3. Set the IMPLICIT_TRANSACTIONS option to off.

    4. Set the IMPLICIT_TRANSACTIONS option to on.

    Answer: A

    Explanation: * Scenario: A stored procedure named USP_3 is used to update prices.

    USP_3 is composed of several UPDATE statements called in sequence from within a transaction. Currently, if one of the UPDATE statements fails, the stored procedure continues to execute.

    • When SET XACT_ABORT is OFF, in some cases only the Transact-SQL statement that raised the error is rolled back and the transaction continues processing. http://msdn.microsoft.com/en-us/library/ms188792.aspx

      Question No: 110 – (Topic 11)

      You need to recommend a solution to minimize the amount of time it takes to execute USP_1.

      With what should you recommend replacing Table1?

      1. A view

      2. A temporary table

      3. A table variable

      4. A function

      Answer: A

      Explanation: * A stored procedure named USP_1 generates millions of rows of data for multiple reports. USP_1 combines data from five different tables from the Sales and Customers databases in a table named Table1.

      CREATE TABLE (SQL Server)

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