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Microsoft 70-764 Online Practice Questions and Exam Preparation

70-764 Exam Details

  • Exam Code
    :70-764
  • Exam Name
    :Administering a SQL Database Infrastructure
  • Certification
    :Microsoft Certifications
  • Vendor
    :Microsoft
  • Total Questions
    :452 Q&As
  • Last Updated
    :Feb 07, 2022

Microsoft 70-764 Online Questions & Answers

  • Question 41:

    DRAG DROP

    You administer two servers AO-AG1 and AO-AG2. Microsoft SQL Server 2016 Enterprise Edition is running on both servers.

    You need to configure a new Microsoft SQL Server Always On Availability Group.

    Which three actions should you perform? 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:

  • Question 42:

    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 administer a SQL Server Instance at Contoso Ltd.

    A new employee named Kim Ralls must be able to read data only from the dbo.Order table in the SalesDB database.

    You create a SQL login named KimRalls. You then create a SQL user account named KimRalls in SalesDB. The user account is associated with the SQL login.

    You need to grant KimRalls the necessary permission or permissions. Your solution must follow the principle of least privilege.

    Solution: You perform the following actions:

    1. Create a custom database role named OrderReader in SalesDB.

    2. Grant the View Definition permission on dbo.Order to the OrderReader role.

    3. Add KimRalls to the OrderReader role. Does the solution meet the goal?

    A. Yes
    B. No

  • Question 43:

    You administer a single server that contains a Microsoft SQL Server 2016 default instance on which several production databases have been deployed.

    You plan to install a new ticketing application that requires the deployment of a database on the server.

    The SQL login for this application requires sysadmin permissions. You need to ensure that the login for the ticketing application cannot access other production databases.

    What should you do?

    A. Use the SQL Server default instance and enable Contained Databases.
    B. Use the SQL Server default instance and configure a user-defined server role. Add the login for the ticketing application to this role.
    C. Install a new named SQL Server instance on the server.
    D. Install a new default SQL Server instance on the server.

  • Question 44:

    DRAG DROP

    You administer a Microsoft SQL Server database named Contoso. You create a stored procedure named Sales.ReviewInvoice by running the following Transact-SQL statement:

    You need to create a Windows-authenticated login named ContosoSearch and ensure that ContosoSearch can run the Sales.ReviewInvoices stored procedure.

    Which three 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:

  • Question 45:

    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 plan the SQL Server 2012 deployment that meets the design requirements.

    Which of the following steps should you perform?

    A. Upgrade the existing SQL Server 2005 server to SQL Server 2012.
    B. Install one new server running SQL Server 2012.
    C. Install two new servers running SQL Server 2012
    D. Configure Failover Clustering
    E. Configure AllwaysOn

  • Question 46:

    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, nightly differential. No transaction log backups are necessary.
    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, nightly differential backups, nightly transaction log backups.

  • Question 47:

    You have a database named DB1 that stores more than 700 gigabyte (GB) of data and serves millions of requests per hour.

    Queries on DB1 are taking longer than normal to complete.

    You run the following Transact-SQL statement:

    SELECT * FROM sys.database_query_store_options

    You determine that the Query Store is in Read-Only mode.

    You need to maximize the time that the Query Store is in Read-Write mode.

    Which Transact-SQL statement should you run?

    A. ALTER DATABASE DB1 SET QUERY_STORE (QUERY_CAPTURE_MODE = ALL)
    B. ALTER DATABASE DB1 SET QUERY_STORE (MAX_STORAGE_SIZE_MB = 50)
    C. ALTER DATABASE DB1 SET QUERY_STORE (CLEANUP_POLICY = (STALE_QUERY_THRESHOLD_DAYS = 14));
    D. ALTER DATABASE DB1 SET QUERY_STORE (QUERY_CAPTURE_MODE = NONE)
    E. ALTER DATABASE DB1 SET QUERY_STORE (OPERATION_MODE = READ_WRITE);

  • Question 48:

    Overview

    Application Overview

    Contoso, Ltd., is the developer of an enterprise resource planning (ERP) application.

    Contoso is designing a new version of the ERP application. The previous version of the ERP application used SQL Server 2008 R2.

    The new version will use SQL Server 2014.

    The ERP application relies on an import process to load supplier data. The import process updates thousands of rows simultaneously, requires exclusive access to the database, and runs daily. You receive several support calls reporting

    unexpected behavior in the ERP application. After analyzing the calls, you conclude that users made changes directly to the tables in the database.

    Tables

    The current database schema contains a table named OrderDetails.

    The OrderDetails table contains information about the items sold for each purchase order. OrderDetails stores the product ID, quantities, and discounts applied to each product in a purchase order. The product price is stored in a table named

    Products. The Products table was defined by using the SQL_Latin1_General_CP1_CI_AS collation.

    A column named ProductName was created by using the varchar data type. The database contains a table named Orders.

    Orders contains all of the purchase orders from the last 12 months. Purchase orders that are older than 12 months are stored in a table named OrdersOld.

    The previous version of the ERP application relied on table-level security.

    Stored Procedures

    The current version of the database contains stored procedures that change two tables. The following shows the relevant portions of the two stored procedures:

    Customer Problems

    Installation Issues

    The current version of the ERP application requires that several SQL Server logins be set up to function correctly. Most customers set up the ERP application in multiple locations and must create logins multiple times.

    Index Fragmentation Issues

    Customers discover that clustered indexes often are fragmented. To resolve this issue, the customers defragment the indexes more frequently. All of the tables affected by fragmentation have the following columns that are used as the

    clustered index key:

    Backup Issues

    Customers who have large amounts of historical purchase order data report that backup time is unacceptable.

    Search Issues

    Users report that when they search product names, the search results exclude product names that contain accents, unless the search string includes the accent.

    Missing Data Issues

    Customers report that when they make a price change in the Products table, they cannot retrieve the price that the item was sold for in previous orders.

    Query Performance Issues

    Customers report that query performance degrades very quickly. Additionally, the customers report that users cannot run queries when SQL Server runs maintenance tasks. Import Issues During the monthly import process, database

    administrators receive many supports call from users who report that they cannot access the supplier data. The database administrators want to reduce the amount of time required to import the data.

    Design Requirements

    File Storage Requirements

    The ERP database stores scanned documents that are larger than 2 MB. These files must only be accessed through the ERP application. File access must have the best possible read and write performance.

    Data Recovery Requirements

    If the import process fails, the database must be returned to its prior state immediately.

    Security Requirements

    You must provide users with the ability to execute functions within the ERP application, without having direct access to the underlying tables.

    Concurrency Requirements

    You must reduce the likelihood of deadlocks occurring when Sales.Prod and Sales.Proc2 execute.

    You need to recommend a solution that resolves the missing data issue.

    The solution must minimize the amount of development effort. What should you recommend?

    A. Denormalize the Products table.
    B. Denormalize the OrderDetails table.
    C. Normalize the OrderDetails table.
    D. Normalize the Products table.

  • Question 49:

    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.

    Your company is developing a new business intelligence application that will access data in a Microsoft Azure SQL Database instance. All objects in the instance have the same owner.

    A new security principal named BI_User requires permission to run stored procedures in the database. The stored procedures read from and write to tables in the database. None of the stored procedures perform IDENTIFY_INSERT

    operations or dynamic SQL commands.

    The scope of permissions and authentication of BI_User should be limited to the database. When granting permissions, you should use the principle of least privilege.

    You need to create the required security principals and grant the appropriate permissions.

    Solution: You run the following Transact-SQL statement in the database:

    Does the solution meet the goal?

    A. Yes
    B. No

  • Question 50:

    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 to minimize the amount of time it takes to execute USP_1. With what should you recommend replacing Table1?

    A. An indexed view
    B. A function
    C. A table variable
    D. A temporary table

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