70-764 무료 덤프문제 온라인 액세스

You administer a Microsoft SQL Server 2016 Enterprise Edition server that uses 64 cores.
You discover performance issues when large amounts of data are written to tables under heavy system load.
You need to limit the number of cores that handle I/O.
What should you configure?

• A.Max worker threads
• B.Processor affinity
• C.I/O affinity
• D.Lightweight pooling

You have a database named DB1.
Users report that queries that use a specific table take a long time to complete. You suspect an issue with how often checkpoints are issued.
You need to create an Extended Events session to monitor the database checkpoint activity on DB1.
Which settings should you use? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

정답:

Explanation

References:
https://docs.microsoft.com/en-us/sql/relational-databases/extended-events/targets-for-extended-events-in-sql-serv

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 contains a table named Table1.
You need to audit all updates to TablID.
Solution: You create a trace on a local disk that captures all the update statements.
Does this meet the goal?

• A.Yes
• B.No

You have a Microsoft SQL Server audit named Audit1. Audit1 contains an audit specification named AuditSpec that audits failed logins.
You need to configure the audit to capture CREATE, ALTER, and DROP statements.
Which three statements should you execute in sequence? To answer, move the appropriate statements from the list to the answer area and arrange them in the correct order.

정답:

Explanation

Step 1: ALTER SERVER AUDIT SPECIFICATION Audit1Spec
FOR SERVER AUDIT Audit1
ADD( DATABASE_OBJECT_CHANGE_GROUP)
DATABASE_OBJECT_CHANGE_GROUP: This event is raised when a CREATE, ALTER, or DROP statement is executed on database objects, such as schemas. This event is raised whenever any database object is created, altered or dropped. Note: This could lead to very large quantities of audit records.
If you enable this group in a server audit specification, it will track changes to schema objects in all of the databases of this instance of SQL Server Step 2: ALTER SERVER AUDIT SPECIFICATION Audit1Spec WITH (STATE = ON); When a server audit specification is created, it is in a disabled state.
WITH ( STATE = { ON | OFF } ) enables or disables the audit from collecting records for this audit specification.
Step 3: ALTER SERVER AUDIT Audit1 WITH (STATE = ON);
All audits are disabled when initially created.
Example: Enables the audit.
ALTER SERVER AUDIT HIPAA_Audit
WITH (STATE = ON);
GO
References:
https://docs.microsoft.com/en-us/sql/relational-databases/security/auditing/create-a-server-audit-and-server-audit

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 IMPLICIT_TRANSACTIONS option to on.
• C.Set the IMPLICIT_TRANSACTIONS option to off.
• D.Set the XACT_ABORT option to on.