Microsoft 70-764 Online Practice Questions and Exam Preparation

Microsoft 70-764 Online Questions & Answers

• Question 311:

  You use Microsoft SQL Server 2016 to write code for a transaction that contains several statements.

  There is high contention between readers and writers on several tables used by your transaction. You need to minimize the use of the tempdb space.

  You also need to prevent reading queries from blocking writing queries.

  Which isolation level should you use?

  A. SERIALIZABLE
  B. SNAPSHOT
  C. READ COMMITTED SNAPSHOT
  D. REPEATABLE READ
  C. READ COMMITTED SNAPSHOT

• Question 312:

  You administer a Microsoft SQL Server 2016 database named Contoso on a server named Server01.

  You need to write messages to the Application Log when users are added to or removed from a fixed server role in Server01.

  What should you create?

  A. a Database Audit Specification
  B. a Policy
  C. an Alert
  D. a SQL Profiler Trace
  E. a Resource Pool
  F. an Extended Event session
  G. a Server Audit Specification
  G. a Server Audit Specification

• Question 313:

  HOTSPOT

  You manage a Microsoft SQL Server environment with a database named salesOrders.

  You plan to encrypt data during database backups.

  You need to ensure that you can recover the database encryption keys.

  How should you complete the Transact-SQL statement? To answer, select the appropriate Transact-SQL segments in the answer area.

  Hot Area:

  

  

  ---

  -- Creates a backup of the "AdventureWorks2012" master key. Because this master key is not encrypted by the service master key, a password must be specified when it is opened.

  USE AdventureWorks2012;

  GO

  OPEN MASTER KEY DECRYPTION BY PASSWORD = 'sfj5300osdVdgwdfkli7';

  BACKUP MASTER KEY TO FILE = 'c:\temp\exportedmasterkey'

  ENCRYPTION BY PASSWORD = 'sd092735kjn$andadsg';

  GO

  References:

  https://docs.microsoft.com/en-us/sql/relationaldatabases/security/encryption/back-up-a-database-master-key?view=sql-server-2017

• Question 314:

  DRAG DROP

  You are a database administrator for an organization.

  Members of the human resources department can add new employee records to the HR.Employees table. All members of the human resources department can add new employee records to the HR.Employees table. All members of the

  human resources department are assigned the Human Resources database role.

  You need to audit inserts to the table.

  Which four transact-SQL statements should you use to develop the solution? To answer, move the appropriate Transact-SQL statements from the list of transact-SQL statements to the answer area and arrange them in the correct order.

  Select and Place:

  

  

  ---

  Box 1: Use MASTER;

  Box 2: CREATE SERVER AUDIT ...

  Only specify the file path.

  Box 3: Use DB1;

  Box 4: CREATE DATABASE AUDIT..

  Specify the table etc.

  References: https://docs.microsoft.com/en-us/sql/t-sql/statements/create-database-audit-specification-transact-sql?view=sql-server-2017

• Question 315:

  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 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 named DB1 that is 640 GB and is updated frequently.

  You enable log shipping for DB1 and configure backup and restore to occur every 30 minutes.

  You discover that the hard disks on the database server are almost full.

  You need to reduce the amount of disk space used by the log shipping process.

  Solution: You enable compression for the transaction log backups.

  Does this meet the goal?

  A. Yes
  B. No
  A. Yes

• Question 316:

  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 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?

  A. Set the XACT_ABORT option to off.
  B. Set the XACT_ABORT option to on.
  C. Set the IMPLICIT_TRANSACTIONS option to off.
  D. Set the IMPLICIT_TRANSACTIONS option to on.
  A. Set the XACT_ABORT option to off.

• Question 317:

  You are the lead database administrator (DBA) of a Microsoft SQL Server 2016 environment. All DBAs are members of the DOMAIN\JrDBAs Active Directory group.

  You grant DOMAIN\JrDBAs access to the SQL Server.

  You need to create a server role named SpecialDBARole that can perform the following functions:

  View all databases.

  View the server state.

  Assign GRANT, DENY, and REVOKE permissions on logins.

  You need to add DOMAIN\JrDBAs to the server role.

  You also need to provide the least level of privileges necessary.

  Which SQL statement or statements should you use? Choose all that apply.

  A. CREATE SERVER ROLE [SpecialDBARole] AUTHORIZATION setupadmin;
  B. ALTER SERVER ROLE [SpecialDBARole] ADD MEMBER [DOMAIN\JrDBAs];
  C. CREATE SERVER ROLE [SpecialDBARole] AUTHORIZATION securityadmin;
  D. GRANT VIEW DEFINITION TO [SpecialDBARole];
  E. CREATE SERVER ROLE [SpecialDBARole] AUTHORIZATION serveradmin;
  F. GRANT VIEW SERVER STATE, VIEW ANY DATABASE TO [SpecialDBARole];
  B. ALTER SERVER ROLE [SpecialDBARole] ADD MEMBER [DOMAIN\JrDBAs];
  C. CREATE SERVER ROLE [SpecialDBARole] AUTHORIZATION securityadmin;
  F. GRANT VIEW SERVER STATE, VIEW ANY DATABASE TO [SpecialDBARole];

• Question 318:

  HOTSPOT

  You have a Microsoft SQL Server instance that hosts a database named DB1 that contains 800 gigabyte (GB) of data. The database is used 24 hours each day. You implement indexes and set the value of the Auto Update Statistics option set to True.

  Users report that queries take a long time to complete.

  You need to identify tables that meet the following requirements:

  More than 1,000 rows have changed.

  The statistics have not been updated in over a week.

  How should you complete the Transact-SQL statement?

  Hot Area:

  

  

  ---

  Example:

  SELECT obj.name, obj.object_id, stat.name, stat.stats_id, last_updated, modification_counter

  FROM sys.objects AS obj

  JOIN sys.stats stat ON stat.object_id = obj.object_id

  CROSS APPLY sys.dm_db_stats_properties(stat.object_id, stat.stats_id) AS sp

  WHERE modification_counter > 1000

  order by modification_counter desc;

  sys.sysindexes contains one row for each index and table in the current database.

  rowmodctr counts the total number of inserted, deleted, or updated rows since the last time statistics were updated for the table.

  Example 2:

  SELECT

  id AS [Table ID]

  , OBJECT_NAME(id) AS [Table Name]

  , name AS [Index Name]

  , STATS_DATE(id, indid) AS [LastUpdated]

  , rowmodctr AS [Rows Modified]

  FROM sys.sysindexes

  WHERE STATS_DATE(id, indid)<=DATEADD(DAY,-1,GETDATE())

  AND rowmodctr>10 AND (OBJECTPROPERTY(id,'IsUserTable'))=1

  References: https://social.msdn.microsoft.com/Forums/sqlserver/en-US/493b90e3-cdb8-4a16-8249-849ba0f82fcb/how-to-find-outdated-statistics-in-sql-server?forum=transactsql

• Question 319:

  DRAG DROP

  You have a database named DB1. You observe issues with indexes and other consistency issues.

  You need to identify and repair all physical database problems while minimizing data loss and database downtime.

  Which four Transact SQL statements should you use to develop the solution?

  Select and Place:

  

  

• Question 320:

  HOTSPOT

  You are planning the deployment of two new Always On Failover Cluster Instances (FCIs) of Microsoft SQL Server to a single Windows Server Cluster with three nodes. The planned configuration for the cluster is shown in the Server Layout exhibit. (Click the Exhibit button.)

  

  The SAN team has configured storage for the cluster and sent the configuration to you in the email shown in the SAN Team Email exhibit. (Click the Exhibit button.)

  

  Each node of the cluster has identical local storage available as shown in the Local Storage exhibit. (Click the Exhibit button.)

  

  All local storage is on SSD.

  You need to plan specific configurations for the new cluster.

  For each of the following statement, select Yes if the statement is true. Otherwise, select No.

  Hot Area:

  

  

  ---

  Box 1: Yes

  tempdb on local storage. FCIs now support placement of tempdb on local non-shared storage, such as a local solid-state-drive, potentially offloading a significant amount of I/O from a shared SAN.

  Prior to SQL Server 2012, FCIs required tempdb to be located on a symmetrical shared storage volume that failed over with other system databases.

  Box 2: No

  The VNN is set on the group level, not on the instance level.

  Database client applications can connect directly to a SQL Server instance network name, or they may connect to a virtual network name (VNN) that is bound to an availability group listener. The VNN abstracts the WSFC cluster and

  availability group topology, logically redirecting connection requests to the appropriate SQL Server instance and database replica.

  The logical topology of a representative AlwaysOn solution is illustrated in this diagram:

  

  Box 3: No

  You don't configure the SAN from a SQL Server, instead you can use a Microsoft Server server.

  References: http://download.microsoft.com/download/d/2/0/d20e1c5f-72ea-4505-9f26-fef9550efd44/microsoft%20sql%20server%20alwayson%20solutions%20guide%20for%20high%20availability%20and%20disaster%20recovery.docx