Microsoft 70-764 Online Practice Questions and Exam Preparation

Microsoft 70-764 Online Questions & Answers

• Question 31:

  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 sections, 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 a table named Table1.

  You need to audit all updates to Table1.

  Solution: You convert Table1 to a system-versioned temporal table.

  Does this meet the goal?

  A. Yes
  B. No
  B. No

• Question 32:

  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 five servers that run Microsoft Windows 2012 R2. Each server hosts a Microsoft SQL Server instance. The topology for the environment is shown in the following diagram.

  

  You have an Always On Availability group named AG1. The details for AG1 are shown in the following table.

  

  Instance1 experiences heavy read-write traffic. The instance hosts a database named OperationsMain that is four terabytes (TB) in size. The database has multiple data files and filegroups. One of the filegroups is read_only and is half of the

  total database size.

  Instance4 and Instance5 are not part of AG1. Instance4 is engaged in heavy read-write I/O.

  Instance5 hosts a database named StagedExternal. A nightly BULK INSERT process loads data into an empty table that has a rowstore clustered index and two nonclustered rowstore indexes.

  You must minimize the growth of the StagedExternal database log file during the BULK INSERT operations and perform point-in-time recovery after the BULK INSERT transaction. Changes made must not interrupt the log backup chain.

  You plan to add a new instance named Instance6 to a datacenter that is geographically distant from Site1 and Site2. You must minimize latency between the nodes in AG1.

  All databases use the full recovery model. All backups are written to the network location \\SQLBackup\. A separate process copies backups to an offsite location. You should minimize both the time required to restore the databases and the

  space required to store backups. The recovery point objective (RPO) for each instance is shown in the following table.

  

  Full backups of OperationsMain take longer than six hours to complete. All SQL Server backups use the keyword COMPRESSION.

  You plan to deploy the following solutions to the environment. The solutions will access a database named DB1 that is part of AG1.

  Reporting system: This solution accesses data inDB1with a login that is mapped to a database user that is a member of the db_datareader role. The user has EXECUTE permissions on the database. Queries make no changes to the data.

  The queries must be load balanced over variable read-only replicas.

  Operations system: This solution accesses data inDB1with a login that is mapped to a database user that is a member of the db_datareader and db_datawriter roles. The user has EXECUTE permissions on the database. Queries from the

  operations system will perform both DDL and DML operations.

  The wait statistics monitoring requirements for the instances are described in the following table.

  

  You need to create a backup plan for Instance4. Which backup plan should you create?

  A. Weekly full backups, weekly differential backups, nightly transaction log backups.
  B. Weekly full backups, nightly differential backups, transaction log backups every 5 minutes.
  C. Weekly full backups, nightly differential backups, transaction log backups every 12 hours.
  D. Weekly full backups, differential backups every 30 minutes. No transaction log backups are necessary.
  B. Weekly full backups, nightly differential backups, transaction log backups every 5 minutes.

• Question 33:

  You have configured Resource Governor with three resource pools.

  You have assigned the first resource pool a minimum CPU and memory value of 20%.

  You have assigned the second resource pool a minimum CPU and memory value of 30%.

  You want to assign maximum CPU and memory values to the third resource pool.

  What is the maximum CPU and memory value you can assign to this resource pool?

  A. 30%
  B. 50%
  C. 70%
  D. 100%
  B. 50%

• Question 34:

  General Overview

  You are the Senior Database Administrator (DBA) for a software development company named Leafield Solutions. The company develops software applications custom designed to meet customer requirements.

  Requirements Leafield Solutions has been asked by a customer to develop a web-based Enterprise Resource Planning and Management application. The new application will eventually replace a desktop application that the customer is

  currently using. The current application will remain in use while the users are trained to use the new webbased application.

  You need to design the SQL Server and database infrastructure for the web-based application.

  Databases

  You plan to implement databases named Customers, Sales, Products, Current_Inventory, and TempReporting.

  The Sales database contains a table named OrderTotals and a table named SalesInfo.

  A stored procedure named SPUpdateSalesInfo reads data in the OrderTotals table and modifies data in the SalesInfo table.

  The stored procedure then reads data in the OrderTotals table a second time and makes further changes to the information in the SalesInfo table. The Current_Inventory database contains a large table named Inv_Current. The Inv_Current

  table has a clustered index for the primary key and a nonclustered index. The primary key column uses the identity property. The data in the Inv_Current table is over 120GB in size. The tables in the Current_Inventory database are accessed

  by multiple queries in the Sales database. Another table in the Current_Inventory database contains a self-join with an unlimited number of hierarchies. This table is modified by a stored procedure named SPUpdate2. An external application

  named ExternalApp1 will periodically query the Current_Inventory database to generate statistical information. The TempReporting database contains a single table named GenInfo. A stored procedure named SPUPdateGenInfo combines

  data from multiple databases and generates millions of rows of data in the GenInfo table.

  The GenInfo table is used for reports.

  When the information in GenInfo is generated, a reporting process reads data from the Inv_Current table and queries information in the GenInfo table based on that data. The GenInfo table is deleted after the reporting process completes. The

  Products database contains tables named ProductNames and ProductTypes.

  Current System

  The current desktop application uses data stored in a SQL Server 2005 database named DesABCopAppDB. This database will remain online and data from the Current_Inventory database will be copied to it as soon as data is changed in the

  Current_Inventory database.

  SQL Servers

  A new SQL Server 2012 instance will be deployed to host the databases for the new system. The databases will be hosted on a Storage Area Network (SAN) that provides highly available storage.

  Design Requirements

  Your SQL Server infrastructure and database design must meet the following requirements:

  Confidential information in the Current_ Inventory database that is accessed by ExternalApp1 must be securely stored.

  Direct access to database tables by developers or applications must be denied.

  The account used to generate reports must have restrictions on the hours when it is allowed to make a connection.

  Deadlocks must be analyzed with the use of Deadlock Graphs.

  In the event of a SQL Server failure, the databases must remain available.

  Software licensing and database storage costs must be minimized.

  Development effort must be minimized.

  The Tempdb databases must be monitored for insufficient free space.

  Failed authentication requests must be logged.

  Every time a new row is added to the ProductTypes table in the Products database, a user defined function that validates the row must be called before the row is added to the table.

  When SPUpdateSalesInfo queries data in the OrderTotals table the first time, the same rows must be returned along with any newly added rows when SPUpdateSalesInfo queries data in the OrderTotals table the second time.

  The performance of the SPUpdate2 stored procedure needs to be improved.

  Your solution must meet the design requirements.

  What should your solution include?

  A. A common table expression.
  B. A derived table.
  C. A Cursor.
  D. A table variable.
  A. A common table expression.

• Question 35:

  Overview

  General Overview

  ADatum 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 5-ms latency. A. Datum standardizes its database platform by using SQL Server 2014 Enterprise

  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:

  

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

  

  The Inventory database is updated frequently.

  The database is often used for reporting.

  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 Table1 sequentially several times. After the process is complete, Table1 is deleted. A stored procedure named USP_2 is used to generate a product list. The product list contains the names of products

  grouped by category.

  USP_2 takes several minutes to run due to locks on the tables the procedure accesses. The locks are caused by USP_1 and USP_3.

  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 fails. 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.

  All nested stored procedures handle errors by using structured exception handling. A stored procedure named USP_5 calls several stored procedures in the same database. Security checks are performed each time USP_5 calls a stored

  procedure.

  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 Time Objective (RTO) of 5 minutes.

  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 manage security for 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

  ADatum 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.

  You need to recommend a solution for the error handling of USP_4.

  The solution must handle errors for nested stored procedures in the code for USP_4.

  What should you recommend?

  A. Use the @@ERROR variable in the nested stored procedures.
  B. Use the @@ERROR variable in USP_4.
  C. Use the RAISERROR command in the nested stored procedures.
  D. Use the RAISERROR command in USP_4.
  C. Use the RAISERROR command in the nested stored procedures.

• Question 36:

  HOTSPOT

  You are planning to deploy log shipping for Microsoft SQL Server and store all backups on a dedicated fileshare.

  You need to configure the servers to perform each log shipping step.

  Which server instance should you configure to perform each action? To answer, select the appropriate server instances in the dialog box in the answer area.

  Hot Area:

  

  

  ---

  Note: Before you configure log shipping, you must create a share to make the transaction log backups available to the secondary server.

  SQL Server Log shipping allows you to automatically send transaction log backups from a primary database on a primary server instance to one or more secondary databases on separate secondary server instances. The transaction log

  backups are applied to each of the secondary databases individually. An optional third server instance, known as the monitor server, records the history and status of backup and restore operations and, optionally, raises alerts if these

  operations fail to occur as scheduled.

  Box 1: Primary server instance.

  The primary server instance runs the backup job to back up the transaction log on the primary database.

  backup job: A SQL Server Agent job that performs the backup operation, logs history to the local server and the monitor server, and deletes old backup files and history information.

  When log shipping is enabled, the job category "Log Shipping Backup" is created on the primary server instance.

  Box 2: Secondary server instance

  Each of the three secondary server instances runs its own copy job to copy the primary logbackup file to its own local destination folder.

  copy job: A SQL Server Agent job that copies the backup files from the primary server to a configurable destination on the secondary server and logs history on the secondary server and the monitor server. When log shipping is enabled on a

  database, the job category "Log Shipping Copy" is created on each secondary server in a log shipping configuration.

  Box 3: Secondary server instance.

  Each secondary server instance runs its own restore job to restore the log backup from the local destination folder onto the local secondary database.

  restore job: A SQL Server Agent job that restores the copied backup files to the secondary databases. It logs history on the local server and the monitor server, and deletes old files and old history information. When log shipping is enabled on

  a database, the job category "Log Shipping Restore" is created on the secondary server instance.

  References: https://docs.microsoft.com/en-us/sql/database-engine/log-shipping/about-logshipping-sql-server

• Question 37:

  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 sections, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

  You have a data warehouse that stored sales data. One fact table has 100 million rows.

  You must reduce storage needs for the data warehouse.

  You need to implement a solution that uses column-based storage and provides real-time analytics for the operational workload.

  Solution: You remove all clustered indexes, sort the transactions in the table, and create a clustered index on the table, so that the table is not a heap.

  Does the solution meet the goal?

  A. Yes
  B. No
  B. No

• Question 38:

  You are using dynamic management views to monitor an SQL Server server named SQL1. A database administrator named Dba1 must monitor the health of SQL1.

  You need to ensure that Dba1 can access dynamic management views for SQL1.

  The solution must use the principle of least privilege. Which permissions should you assign to Dba1?

  A. VIEW ANY DEFINITION
  B. VIEW SERVER STATE
  C. VIEW DEFINITION
  D. CONTROL SERVER
  B. VIEW SERVER STATE

• Question 39:

  You create a Management Data Warehouse instance and enable data collection. You have an Active Directory Domain Services (AD DS) group named SQLDevelopers.

  Members of the SQLDevelopers group must be able to run reports that show information about Microsoft SQL Server waits and SQL Server activity.

  You need to grant the developers permissions to run the reports by using the principle of least privilege.

  What should you do?

  A. In the msdb database, add SQLDevelopers to the mdw_admin role.
  B. In the msdb database, add SQLDevelopers to the mdw_reader role.
  C. In the MDW database, add SQLDevelopers to the db_datareader role.
  D. In the MDW database, add SQLDevelopers to the mdw_admin role.
  C. In the MDW database, add SQLDevelopers to the db_datareader role.

• Question 40:

  HOTSPOT

  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 a database administrator for a company that has an on-premises Microsoft SQL Server environment and Microsoft Azure SQL Database instances. The environment hosts several customer databases, and each customer uses a dedicated instance. The environments that you manage are shown in the following table.

  

  You need to configure monitoring for Tailspin Toys.

  In the table below, identify the monitoring tool that you must use for each activity.

  NOTE: Make only one selection in each column.

  Hot Area:

  

  

  ---

  Monitoring from application: Transact-SQL

  Transact-SQL can be used to monitor a customized application.

  Trend analysis: System Monitor

  System Monitor can provide trend analysis.

  From question:

  Tailspin Toys has a custom application that accesses a hosted database named TSpinDB.

  The application will monitor TSpinDB and capture information over time about which database objects are accessed and how frequently they are accessed.

  References: https://docs.microsoft.com/en-us/sql/relationaldatabases/performance/performance-monitoring-and-tuning-tools