Microsoft 70-764 Online Practice Questions and Exam Preparation

Microsoft 70-764 Online Questions & Answers

• Question 111:

  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.

  You need to enable users to modify data in the database tables using UPDATE operations.

  You need to implement a solution that meets the design requirements.

  What should you configure?

  A. You should configure a server role.
  B. You should configure a database role.
  C. You should configure functions that use the EXECUTE AS statement.
  D. You should configure stored procedures that use the EXECUTE AS statement.
  D. You should configure stored procedures that use the EXECUTE AS statement.

• Question 112:

  DRAG DROP

  You have a database named DB1. You complete a full backup on January1, 2018 to a backup set named DB1_Backup. You create a differential backup January 2, 2018 to the same backup set. You perform transaction log backups each day

  at 1:00 PM.

  DB1 experiences a catastrophic failure.

  You need to restore the database to January 3, 2018 at 11:00 AM.

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

  Select and Place:

  

  

  ---

  This example restores a database, differential database, and transaction log backup of the MyAdvWorks database.

  Step 1:

  -- Assume the database is lost at this point. Now restore the full

  -- database. Specify the original full database backup and NORECOVERY.

  -- NORECOVERY allows subsequent restore operations to proceed.

  RESTORE DATABASE MyAdvWorks

  FROM MyAdvWorks_1

  WITH NORECOVERY;

  GO

  Step 2:

  -- Now restore the differential database backup, the second backup on

  -- the MyAdvWorks_1 backup device.

  RESTORE DATABASE MyAdvWorks

  FROM MyAdvWorks_1

  WITH FILE = 2,

  NORECOVERY;

  Step 3:

  -- Now restore each transaction log backup created after

  -- the differential database backup.

  RESTORE LOG MyAdvWorks

  FROM MyAdvWorks_log1

  WITH NORECOVERY; GO RESTORE LOG MyAdvWorks FROM MyAdvWorks_log2 WITH RECOVERY; GO

  References: https://docs.microsoft.com/en-us/sql/relational-databases/backup-restore/restore-a-differential-database-backup-sql-server

• Question 113:

  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 completes only if all of the UPDATE statements complete. 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.
  B. Set the XACT_ABORT option to on.

• Question 114:

  HOTSPOT

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

  

  The following table illustrates a representative sample of data:

  

  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.

  Hot Area:

  

  

  ---

  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.

• Question 115:

  Your company has offices in Seattle and Montreal.

  The network contains two servers named Server1 and Server2 that have SQL Server 2012 installed. The servers are located in separate building within your campus.

  The latency of the WAN link between the buildings is less than 10 ms.

  You plan to implement an AlwaysOn availability group on both servers.

  You need to recommend a failover type for the availability group.

  What should you recommend?

  A. Asynchronous automatic failover
  B. Synchronous manual failover
  C. Asynchronous manual failover
  D. Synchronous automatic failover
  D. Synchronous automatic failover

• Question 116:

  DRAG DROP

  You are the database administrator for a Microsoft SQL Server instance. You develop an Extended Events package to look for events related to application performance.

  You need to change the event session to include SQL Server errors that are greater than error severity 15.

  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.

  Select and Place:

  

  

  ---

  Step 1: ALTER EVENT SESSION Contoso1 ON SERVER Step 2: ADD EVENT … Step 3: (ACTION ... Step 4: WHERE... Step 5: ) GO Example: To start an Extended Events sessions in order to trap SQL Server errors with severity greater than 10,just run the following script: CREATE EVENT SESSION [error_trap] ON SERVER ADD EVENT sqlserver.error_reported ( ACTION (package0.collect_system_time,package0.last_error,sqlserver.client_app_name,sqlserver.c lient_hostname,sqlserver.database_id,sqlserver.database_name,sqlserver.nt_username, sqlserver.plan_handle,sqlserver.query_hash,sqlserver.session_id,sqlserver.sql_text,sqlser ver.tsql_frame,sqlserver.tsql_stack,sqlserver.username) WHERE ([severity]>10) ) ADD TARGET package0.event_file ( SET filename=N'D:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\XEvents\error_trap.xel' ) WITH ( STARTUP_STATE=OFF ) GO

  References: http://sqlblog.com/blogs/davide_mauri/archive/2013/03/17/trapping-sql-servererrors-with-extended-events.aspx

• Question 117:

  DRAG DROP

  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 implement a process for importing data into WingDB.

  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.

  Select and Place:

  

  

  ---

  Step 1: Perform a full backup of the database and enable the bulk-logged recovery model.

  Not: Simple recovery model.

  With the Simple recovery model we cannot minimize data loss.

  Step 2: Import the data

  Step 3: Backup the tail of the transaction log.

  For databases that use full and bulk-logged recovery, database backups are necessary but not sufficient. Transaction log backups are also required.

  Note: Three recovery models exist: simple, full, and bulk-logged. Typically, a database uses the full recovery model or simple recovery model. A database can be switched to another recovery model at any time.

  References: https://docs.microsoft.com/en-us/sql/relational-databases/backuprestore/recovery-models-sql-server

• Question 118:

  DRAG DROP

  Background

  Corporate Information

  Fabrikam, Inc. is a retailer that sells electronics products on the Internet. The company has a headquarters site and one satellite sales office. You have been hired as the database administrator, and the company wants you to change the

  architecture of the Fabrikam ecommerce site to optimize performance and reduce downtime while keeping capital expenditures to a minimum. To help with the solution, Fabrikam has decided to use cloud resources as well as on-premise

  servers.

  Physical Locations

  All of the corporate executives, product managers, and support staff are stationed at the headquarters office. Half of the sales force works at this location. There is also a satellite sales office. The other half of the sales force works at the

  satellite office in order to have sales people closer to clients in that area. Only sales people work at the satellite location.

  Problem Statement

  To be successful, Fabrikam needs a website that is fast and has a high degree of system uptime. The current system operates on a single server and the company is not happy with the single point of failure this presents. 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.

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

  Configuration

  Windows Logins

  The network administrators have set up Windows groups to make it easier to manage security. Users may belong to more than one group depending on their role. The groups have been set up as shown in the following table:

  

  Server Configuration The IT department has configured two physical servers with Microsoft Windows Server 2012 R2 and SQL Server 2014 Enterprise Edition and one Windows Azure Server. There are two tiers of storage available for use by database files only a fast tier and a slower tier. Currently the data and log files are stored on the fast tier of storage only. If a possible use case exists, management would like to utilize the slower tier storage for data files. The servers are configured as shown in the following table:

  

  Database

  Currently all information is stored in a single database called ProdDB, created with the following script:

  

  The Product table is in the Production schema owned by the ProductionStaff Windows group. It is the main table in the system so access to information in the Product table should be as fast as possible. The columns in the Product table are defined as shown in the following table:

  

  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. The columns in the SalesOrderDetail table are defined as shown in the following table:

  

  Database Issues

  The current database does not perform well. Additionally, a recent disk problem caused the system to go down, resulting in lost sales revenue. In reviewing the current system, you found that there are no automated maintenance procedures.

  The database is severely fragmented, and everyone has read and write access.

  Requirements

  Database

  The database should be configured to maximize uptime and to ensure that very little data is lost in the event of a server failure. To help with performance, the database needs to be modified so that it can support in-memory data, specifically

  for the Product table, which the CIO has indicated should be a memoryoptimized table. The auto-update statistics option is set off on this database. Only product managers are allowed to add products or to make

  changes to the name, description, price, cost, and supplier. The changes are made in an internal database and pushed to the Product table in ProdDB during system maintenance time. Product managers and others working at the

  headquarters location also should be able to generate reports that include supplier and cost information.

  Customer data access

  Customers access the company's website to order products, so they must be able to read product information such asname, description, and price from the Product table. When customers place orders, stored procedures calledby the website

  update product quantityon-hand values. This means the product table is constantly updated at randomtimes.

  Customer support data access

  Customer support representatives need to be able to view and not update or change product information. Management does not want the customer support representatives to be able to see the product cost or any supplier information.

  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.

  Historical Data

  The system should keep historical information about customers who access the site so that sales people can see how frequently customers log in and how long they stay on the site.

  The information should be stored in a table called Customer Access. Supporting this requirement should have minimal impact on production website performance.

  Backups

  The recovery strategy for Fabrikam needs to include the ability to do point in time restores and minimize the risk of data loss by performing transaction log backups every 15 minutes.

  Database Maintenance

  The company has defined a maintenance window every month when the server can be unavailable. Any maintenance functions that require exclusive access should be accomplished during that window.

  Project milestones completed

  Revoked all existing read and write access to the database, leaving the schema ownership in place.

  Configured an Azure storage container secured with the storage account name MyStorageAccount with the primary access key StorageAccountKey on the cloud file server.

  SQL Server 2014 has been configured on the satellite server and is ready for use.

  On each database server, the fast storage has been assigned to drive letter F:,

  and the slow storage has been assigned to drive letter D:.

  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.

  Select and Place:

  

  

• Question 119:

  You want to reproduce the same SQL Server 2016 installation configuration across five servers. Which of the following files will you generate by using SQL Server Setup to accomplish this goal?

  A. Configuration.xml
  B. Setup.ini
  C. Setup.xml
  D. ConfigurationFile.ini
  D. ConfigurationFile.ini

• Question 120:

  DRAG DROP

  You are designing an authentication strategy for a new server that has SQL Server 2014 installed. The strategy must meet the following business requirements:

  The account used to generate reports must be allowed to make a connection during certain hours only.

  Failed authentication requests must be logged.

  You need to recommend a technology that meets each business requirement. The solution must minimize the amount of events that are logged.

  Which technologies should you recommend? To answer, drag the appropriate solution to the correct business requirement in the answer area.

  Select and Place:

  

  

  ---

  1. 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. Logon triggers fire after the authentication phase of logging in finishes, but

  before the user session is actually established.

  You can use logon triggers to audit and control server sessions, such as by tracking login activity, restricting logins to SQL Server, or limiting the number of sessions for a specific login.

  2. Login auditing can be configured to write to the error log on the following events.

  -Failed logins

  -Successful logins

  -Both failed and successful logins