[Free] 2017(Nov) Latesttests Examcollection Microsoft 70-469 Dumps with VCE and PDF Download 121-130

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Recertification for MCSE: Data Platform

Question No: 121 – (Topic 12)

You have a SQL Server 2014 environment That contains 20 servers.

The corporate security policy states that all SQL Server 2014 instances must meet specific security standards.

You need to recommend a management strategy for the SQL Server 2014 servers. What should you include in the recommendation?

More than one answer choice may achieve the goal. Select the BEST answer.

  1. Multi server jobs

  2. Policy-Based Management

  3. Common criteria compliance

  4. Maintenance plans

Answer: B

Explanation: Policy-Based Management is a system for managing one or more instances of SQL Server. When SQL Server policy administrators use Policy-Based Management, they use SQL Server Management Studio to create policies to manage entities on the server, such as the instance of SQL Server, databases, or other SQL Server objects.

Policy-Based Management How-to Topics

Question No: 122 HOTSPOT – (Topic 12)

You use SQL Server 2014. You create a table within a database by using the following DDL:

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The following table illustrates a representative sample of data:

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The system is expected to handle 50 million orders a month over the next five years.

You have been instructed by your Team Lead to follow best practices for storage and performance in the utilization of SPARSE columns.

Which columns should you designate as SPARSE? To answer, mark each column as SPARSE or NOT SPARSE in the answer area.

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Answer:

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Explanation:

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Note:

Sparse columns are ordinary columns that have an optimized storage for null values. Sparse columns reduce the space requirements for null values at the cost of more overhead to retrieve nonnull values. Consider using sparse columns when the space saved is at least 20 percent to 40 percent.

Use Sparse Columns

Question No: 123 – (Topic 12)

You are troubleshooting an application that runs a query. The application frequently causes deadlocks.

You need to identify which transaction causes the deadlock. What should you do?

More than one answer choice may achieve the goal. Select the BEST answer.

  1. Query the sys.dm_exec_sessions dynamic management view.

  2. Query the sys.dm_exec_requests dynamic management view.

  3. Create a trace in SQL Server Profiler that contains the Deadlock graph event

  4. Create an extended events session to capture deadlock information.

Answer: D

Explanation: Troubleshooting deadlocks

You have been receiving reports from users indicating that certain applications are returning deadlock errors. To maximize the effectiveness of troubleshooting these problems, you decide to focus on the deadlocks that are hit most frequently. You create an Extended Events session that:

/ Configures deadlock event tracking for the session.

/ Specifies a target that aggregates based on an identifier for the deadlock.

You run the Extended Events session, and after additional deadlocks are reported you are able to obtain aggregated deadlock information, along with the complete XML deadlock graph for each source. Using this information you are able to pin point the most common deadlocks and start working on a solution.

Create an Extended Events Session View Event Session Data

Question No: 124 – (Topic 12)

You have a server that has SQL Server 2014 installed. The server contains 100 user databases.

You need to recommend a backup solution for the user databases.

The solution must meet the following requirements:

->Perform a transaction log backup every hour.

->Perform a full backup of each database every week.

->Perform a differential backup of each database every day.

->Ensure that new user databases are added automatically to the backup solution.

What should you recommend?

More than one answer choice may achieve the goal. Select the BEST answer.

  1. Policy-Based Management

  2. A Data Definition Language (DDL) trigger

  3. SQL Server Agent jobs

  4. A maintenance plan

Answer: D

Explanation: Maintenance plans create a workflow of the tasks required to make sure that your database is optimized, regularly backed up, and free of inconsistencies.

Maintenance plans can be created to perform the following task (among others):

Back up the database and transaction log files. Database and log backups can be retained for a specified period. This lets you create a history of backups to be used if you have to restore the database to a time earlier than the last database backup. You can also perform differential backups.

Maintenance Plans

Question No: 125 DRAG DROP – (Topic 12)

You use SQL Server 2014 Enterprise Edition. Your database contains a partitioned table named AuditData. AuditData is partitioned by year. Partition 1 contains data from the year 2010 and prior.

Management has decided to archive all AUDITDATA records from 2010 and prior. Management wants the records to be removed from the database entirely and provided to the backup team as a zipped text file. The data must no longer reside in the database.

There is very little tolerance for performance degradation in your environment.

You need to remove all 2010 and prior data from the AuditData table by using the least amount of system resources possible.

Develop the solution by selecting and arranging the required SQL actions in the correct order.

You may not need all of the actions.

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Answer:

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Explanation:

Box 1: CREATE TABLE Box 2: SPLIT RANGE Box 3: SELECT INTO Box 4: BCP

Box 5: DROP TABLE

Box 6: DROP PARTITION

Note:

  • Create a new partitioned table with the partition function you want, and then insert the data from the old table into the new table by using an INSERT INTO…SELECT FROM statement.

  • SPLIT RANGE ( boundary_value )

    Adds one partition to the partition function. boundary_value determines the range of the new partition, and must differ from the existing boundary ranges of the partition function. Based on boundary_value, the Database Engine splits one of the existing ranges into two. Of these two, the one where the new boundary_value resides is considered the new

    partition.

  • BCP can be used to produce the zipped text file.

  • Example:

Splitting a partition of a partitioned table or index into two partitions

The following example creates a partition function to partition a table or index into four partitions. ALTER PARTITION FUNCTION splits one of the partitions into two to create a total of five partitions.

CREATE PARTITION FUNCTION myRangePF1 (int) AS RANGE LEFT FOR VALUES ( 1, 100, 1000 ); GO

-Split the partition between boundary_values 100 and 1000

-to create two partitions between boundary_values 100 and 500

-and between boundary_values 500 and 1000. ALTER PARTITION FUNCTION myRangePF1 () SPLIT RANGE (500);

http://technet.microsoft.com/en-us/library/ms186307(v=sql.110).aspx http://technet.microsoft.com/en-us/library/ms162802(v=sql.120).aspx

Question No: 126 DRAG DROP – (Topic 12)

You plan to deploy three highly available SQL Server environments that will use SQL Server 2014.

You identify the following specifications for each environment as shown following table.

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You need to recommend which high-availability feature is required for each environment. Which features should you identify?

To answer, drag the appropriate feature to the correct requirement in the answer area.

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Answer:

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Explanation:

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* Always on availability groups

The AlwaysOn Availability Groups feature is a high-availability and disaster-recovery solution that provides an enterprise-level alternative to database mirroring. Introduced in SQL Server 2012, AlwaysOn Availability Groups maximizes the availability of a set of user databases for an enterprise.

Deploying AlwaysOn Availability Groups requires a Windows Server Failover Clustering (WSFC) cluster.

AlwaysOn Availability Groups (SQL Server)

Features Supported by the Editions of SQL Server 2014

Question No: 127 DRAG DROP – (Topic 12)

You plan to deploy SQL Server 2014.

You identify the following security requirements for the deployment:

->Users must be prevented from intercepting and reading the T-SQL statements sent from the clients to the database engine.

->All database files and log files must be encrypted if the files are moved to another

disk on another server.

You need to identify which feature meets each security requirement. The solution must minimize processor overhead.

Which features should you identify?

To answer, drag the appropriate feature to the correct requirement in the answer area.

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Answer:

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Explanation:

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  • Secure Sockets Layer (SSL) encryption enables transmitting encrypted data across the network between an instance of SQL Server and a client application.

  • Transparent data encryption (TDE) performs real-time I/O encryption and decryption of the data and log files.

Authentication in Reporting Services Transparent Data Encryption (TDE)

Question No: 128 – (Topic 12)

You use SQL Server 2014 to maintain the data used by applications at your company. You want to execute two statements.

You need to guarantee that either both statements succeed, or both statements fail together as a batch.

Which code should you use?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

  5. Option E

Answer: D

Explanation: Structure should be: BEGIN TRY

BEGIN TRANSACTION

COMMIT TRANSACTION END TRY

BEGIN CATCH

ROLLBACK TRANSACTION END CATCH.

TRY…CATCH (Transact-SQL)

Question No: 129 – (Topic 12)

You are creating a database that will store usernames and passwords for an application. You need to recommend a solution to store the passwords in the database.

What should you recommend?

More than one answer choice may achieve the goal. Select the BEST answer.

  1. One-way encryption

  2. Encrypting File System (EFS)

  3. Transparent Data Encryption (TDE)

  4. Reversible encryption

Answer: C

Explanation: * Transparent Data Encryption (TDE) is a special case of encryption using a symmetric key. TDE encrypts an entire database using that symmetric key called the database encryption key. The database encryption key is protected by other keys or certificates which are protected either by the database master key or by an asymmetric key

stored in an EKM module.

* SQL Server provides the following mechanisms for encryption: Transact-SQL functions

Asymmetric keys Symmetric keys Certificates

Transparent Data Encryption Transparent Data Encryption (TDE)

Question No: 130 DRAG DROP – (Topic 12)

You plan to deploy SQL Server 2012.

You are designing two stored procedures named USP_1 and USP_2 that have the following requirements:

->Prevent data read by USP_1 from being modified by other active processes.

->Prevent USP_2 from performing dirty reads.

You need to recommend the isolation level for each stored procedure. The solution must maximize concurrency.

Which isolation levels should you recommend?

To answer, drag the appropriate isolation level to the correct stored procedure in the answer area.

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Answer:

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Explanation:

Note:

  • REPEATABLE READ

    This isolation level includes the guarantees given by SNAPSHOT isolation level. In addition, REPEATABLE READ guarantees that for any row that is read by the transaction, at the time the transaction commits the row has not been changed by any other transaction. Every read operation in the transaction is repeatable up to the end of the transaction.

  • Committed Read is SQL Server#39;s default isolation level. It ensures that an operation will never read data another application has changed but not yet committed.

Transaction Isolation Levels

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