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Exam 70-462: Administering Microsoft SQL Server 2012/2014 Databases: https://www.microsoft.com/en-us/learning/exam-70-462.aspx

This exam is intended for database professionals who perform installation, maintenance, and configuration tasks. Other responsibilities include setting up database systems, making sure those systems operate efficiently, and regularly storing, backing up, and securing data from unauthorized access.

pass4itsure 70-462 Skills measured

This exam measures your ability to accomplish the technical tasks listed below. The percentages indicate the relative weight of each major topic area on the exam.

  • Install and configure (20–25%)
  • Maintain instances and databases (15–20%)
  • Optimize and troubleshoot (15–20%)
  • Manage data (20–25%)
  • Implement security (15–20%)
  • Implement high availability (5–10%)

Latest effective Microsoft SQL Server 2012 70-462 Exam Practice Tests

QUESTION 1
Note: This question is part of a series of questions that use the same set of answers choices. An answer choice may be
correct for more than one question in the series.
You administer a Microsoft SQL Server database server that hosts a transactional database and a reporting database.
The transactional database is updated through a web application and is operational throughout the day. The reporting database is only updated from the transactional database.
The recovery model and backup schedule are configured as shown in the following table:pass4itsure 70-462 exam question q1

One of the hard disk drives that stores the reporting database fail at 23:32 hours.
You need to ensure that the reporting database is restored. You also need to ensure that data loss is minimal.
What should you do?
A. Perform a page restore.
B. Perform a partial restore.
C. Perform a point-in-time restore.
D. Restore the latest full backup.
E. Restore the latest full backup. Then, restore the latest differential backup.
F. Restore the latest full backup, and restore the latest differential backup. Then, restore the latest log backup.
G. Restore the latest full backup and restore the latest differential backup. Then, restore each log backup taken before
the time of failure from the most recent differential backup.
H. Restore the latest full backup. Then, restore each differential backup taken before the time of failure from the most
recent full backup.
Correct Answer: E
To recover the database, you must restore the latest full backup and then restore the latest differential backup.
Incorrect Answers:
A: A page restore is used to repair isolated damaged pages. It is faster than a file restores id only a few individual pages
are damaged.
B: Partial restores allow a database that contains multiple filegroups to be restored and recovered in stages. It works
with all recovery models but is more flexible for the full and bulk-logged models than for the simple model.
C: Point in time restores are not supported for the simple backup model as log files are not part of the backup.
D: The latest full backup was performed at 01:00 hours, 22 hours and 32 minutes before the hard disk failure. A
differential backup was made at 13:00 hours, 10 hours and 32 minutes before the hard disk failure. A differential backup
contains
data that has been added or updated since the last full backup and should be restored to minimize data loss.
F, G: There is no log backup in the simple backup model.
H: Only the latest differential backup needs to be restored.
References: https://msdn.microsoft.com/en-us/library/ms186216%28v=sql.110%29.aspx
https://technet.microsoft.com/en-us/library/ms175168%28v=sql.110%29.aspx https://msdn.microsoft.com/en-us/library/ms177425%28v=sql.110%29.aspx https://msdn.microsoft.com/en-us/library/ms175526%28v=sql.110%29.aspx

 

QUESTION 2
You administer a Microsoft SQL Server 2012 database named Orders. Orders contain a table named OrderShip that is
defined as follows:pass4itsure 70-462 exam question q2 A NULL value represents a domestic order. Ninety percent of the values in CountryCode are NULL.
Customers require a procedure that will return orders for all customers from a specified country. You create a new
procedure:

pass4itsure 70-462 exam question q2-1

Performance of this procedure is slow.
You need to alter the schema to optimize this query. Objects created must use a minimum amount of resources.
Which Transact-SQL statement should you use?

pass4itsure 70-462 exam question q2-2

A. B. C. D.
Correct Answer: B
Filtered statistics can improve query performance for queries that select from well-defined subsets of data. References:
https://msdn.microsoft.com/en-us/library/ms190397.aspx

 

QUESTION 3
DRAG DROP
Your company has a data warehouse that contains all of the sales data for your company. Several business applications
read data from the data warehouse.
You plan to deploy an indexing strategy for a 2-TB table named FactSales contains a clustered index.
You need to recommend a solution for index maintenance that meets the following requirements:
Maintenance must be performed only when index fragmentation reaches 50 percent.
Maintenance must minimize the impact on the database reads from the business applications.
Which four 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:pass4itsure 70-462 exam question q3

Correct Answer:

pass4itsure 70-462 exam question q3-1

Step 1: Partition the table
Step 2: Create a partition function
To migrate SQL Server partition definitions to SQL Data Warehouse simply:
Eliminate the SQL Server partition scheme.
Add the partition function definition to your CREATE TABLE.
Step 3: Create a partition scheme
Partitioning requires a partition function and a partition scheme.
Step 4: Rebuild the clustered index
Rebuild the clustered index onto a new partition function/scheme.
References:
https://docs.microsoft.com/en-us/azure/sql-data-warehouse/sql-data-warehouse-tables-partition
https://blog.sqlrx.com/2017/02/24/sql-2016-partitioning-an-existing-table-with-a-columnstore-index/

 

QUESTION 4
You develop a database for a travel application. You need to design tables and other database objects. You create a
view that displays the dates and times of the airline schedules on a report.
You need to display dates and times in several international formats.
What should you do?
A. Use the CAST function.
B. Use the DATE data type.
C. Use the FORMAT function.
D. Use an appropriate collation.
E. Use a user-defined table type.
F. Use the VARBINARY data type.
G. Use the DATETIME data type.
H. Use the DATETIME2 data type.
I. Use the DATETIMEOFFSET data type.
J. Use the TODATETIMEOFFSET function.
Correct Answer: C
Reference: http://msdn.microsoft.com/en-us/library/hh213505.aspx

 

QUESTION 5
You are designing a data warehouse with two fact tables.
The first table contains sales per month and the second table contains orders per day.
Referential integrity must be enforced declaratively.
You need to design a solution that can join a single time dimension to both fact tables.
What should you do?
A. Join the two fact tables.
B. Merge the fact tables.
C. Create a time dimension that can join to both fact tables at their respective granularity.
D. Create a surrogate key for the time dimension.
Correct Answer: D
With dimensionally modeled star schemas or snowflake schemas, decision support queries follow a typical pattern: the
the query selects several measures of interest from the fact table, joins the fact rows with one or several dimensions along
the surrogate keys, places filter predicates on the business columns of the dimension tables, groups by one or several
business columns, and aggregates the measures retrieved from the fact table over a period of time.
The following demonstrates this pattern, which is also sometimes referred to as a star join query:
select ProductAlternateKey,
CalendarYear,sum(SalesAmount)
from FactInternetSales Fact
join DimTime
on Fact.OrderDateKey = TimeKey
join DimProduct
on DimProduct.ProductKey =
Fact.ProductKey
where CalendarYear between 2003 and 2004
and ProductAlternateKey like \\’BK%\\’
group by ProductAlternateKey,CalendarYear

 

QUESTION 6
Note: This question is part of a series of questions that use the same set of answer choices. An answer choice may be
correct for more than one question in the series.
You administer a Microsoft SQL Server 2012 database named Contoso on a server named Server01.
You need to prevent users from disabling server audits in Server01.
What should you create?
A. An Alert
B. A Resource Pool
C. An Extended Event session
D. A Policy
E. A Database Audit Specification
F. A SQL Profiler Trace
G. A Server Audit Specification
Correct Answer: D

 

QUESTION 7
You administer a Microsoft SQL Server database server. One of the databases on the server supports a highly active
OLTP application.
Users report abnormally long wait times when they submit data into the application.
You need to identify which queries are taking longer than 1 second to run over an extended period of time.
What should you do?
A. use SQL Profiler to trace all queries that are processing on the server. Filter queries that have a Duration value of
more than 1,000.
B. Use sp_configure to set a value for the blocked process threshold. Create an extended event session.
C. Use the Job Activity monitor to review all processes that are actively running. Review the Job History to find out the
duration of each step.
D. Run the sp_who command from a query window.
E. Run the DBCC TRACEON 1222 command from a query window and review the SQL Server event log.
Correct Answer: A
Use SQL Profiler to trace all queries that are processing on the server. Filter queries that have a Duration value of more
than 1,000.
Incorrect:
Not B: The SQL Server lock monitor is responsible for implementing the logic to detect a blocking scenario if the
`blocked process threshold\\’ value is greater than 0. However, the lock monitor only wakes up every 5 seconds to
detect this
condition (it is also looking for other conditions such as deadlocks). Therefore, if you set a `blocked process threshold\\’
value to 1, it will not detect a process that has been blocking for 1 second. The minimum time it can detect a blocked process is 5 seconds.
Not E: The Traceflag 1222 Shows Deadlocks, not the Duration of a query.
References: https://docs.microsoft.com/en-us/sql/tools/sql-server-profiler/sql-server-profiler

 

QUESTION 8
You have a default installation of SQL Server that hosts an Online Transaction Processing (OLTP) application.
Users report that they experience poor overall query performance for the application.
You query the wait statistics and discover that the two top waits are CXPACKET and SOS_SCHEDULER_YIELD.
You need to modify the SQL Server settings to resolve the issue causing the poor query performance.
Which two settings should you modify? Each correct answer presents part of the solution.
A. max degree of parallelism (MAXDOP)
B. Minimum Memory
C. optimize for ad hoc workloads
D. Boost SQL Server priority
E. cost threshold for parallelism
Correct Answer: AE
A: Lower the MAXDOP.
When high CXPACKET values are encountered, a possible issue, even in the case when parallelism is evenly distributed, is
when the cost of creating the parallel plan is higher than the cost of the serialized thread. This is often something that is
overlooked and by the rule of thumb of reaching for the altering of the Max Degree of Parallelism (MAXDOP), by setting it to
1 (each and every query will be processed by the single CPU core). Configuring MAXDOP settings to 1 should be the last resource used in troubleshooting excessive CXPACKET wait times.
When a high CXPACKET value is accompanied by a LATCH_XX and with PAGEIOLATCH_XX or
SOS_SCHEDULER_YIELD, it is an indicator that slow/inefficient parallelism itself is the actual root cause of the
performance issues. And in
such a scenario if the LATCH_XX waits are ACCESS_METHODS_DATASET_PARENT or
ACCESS_METHODS_SCAN_RANGE_GENERATOR class, then it is highly possible that the parallelism level is the
bottleneck and the actual root cause of the query performance issue. This is a typical example when MAXDOP should be reduced.
E: The Cost Threshold for Parallelism (CTFP) value is in seconds and it means that for every query for which SQL
Server estimates that running time will be longer than 5 seconds, a parallel plan will be created.
To prevent unwanted parallelism, the CTFP number could be increased and by the aforementioned rule of thumb, a
minimum value of 25. Recent analysis indicates that 50 should be the optimal minimal number for modern computers.
References: https://www.sqlshack.com/troubleshooting-the-cxpacket-wait-type-in-sql-server/

 

QUESTION 9
Which of the following will show you a history of job errors that have occurred in jobs scheduled to run in an SQL Server
2012 installation?
A. Look at the sys.all_job_hist table.
B. In Management Studio, navigate to SQL Server Agent -> Error Logs and look at the log for the corresponding date.
C. Open the c:\error\job.log file and search for the particular job and the errors you wish to view.
D. You must use T-SQL to write a job-logging procedure to monitor jobs.
Correct Answer: D

 

QUESTION 10
Note: This question is part of a series of questions that use the same set of answer choices. An answer choice may be
correct for more than one question in the series.
You administer a SQL Server server that contains a database named SalesDb. SalesDb contains a schema named
Customers that have a table named Regions. A user named UserA is a member of a role named Sales. UserA is granted
the Select permission on the Regions table. The Sales role is granted the Select permission on the Customers schema.
You need to ensure that the following requirements are met:
The Sales role does not have the Select permission on the Customers schema.
UserA has the Select permission on the Regions table.
Which Transact-SQL statement should you use?
A. DENY SELECT ON Object::Regions FROM Sales
B. DENY SELECT ON Schema::Customers FROM Sales
C. REVOKE SELECT ON Object::Regions FROM Sales
D. REVOKE SELECT ON Schema::Customers FROM Sales
E. DENY SELECT ON Object::Regions FROM UserA
F. DENY SELECT ON Schema::Customers FROM UserA
G. REVOKE SELECT ON Object::Regions FROM UserA
H. REVOKE SELECT ON Schema::Customers FOR UserA
I. EXEC sp_addrolemember `Sales\\’, `UserA\\’
J. EXEC sp_droprolemember `Sales\\’, `UserA\\’
Correct Answer: D
References: http://msdn.microsoft.com/en-us/library/ms188369.aspx http://msdn.microsoft.com/en-us/library/ms187750.aspx http://msdn.microsoft.com/en-us/library/ff848791.aspx

 

QUESTION 11
You administer a Microsoft SQL Server.
A process that normally runs in less than 10 seconds has been running for more than an hour.
You examine the application log and discover that the process is using session ID 60.
You need to find out whether the process is being blocked.
Which Transact-SQL statement should you use?
A. SELECT * FROM sys.dm_exec_requests WHERE session_id = 60
B. SELECT * FROM sys.dm_exec_sessions WHERE session_id = 60
C. DBCC INPUTBUFFER (60)
D. DBCC OPENTRAN
Correct Answer: A
References: https://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-exec-requests-transact-sql

 

QUESTION 12
You administer a Microsoft SQL Server database that has a Trustworthy set to On. You create a stored procedure that
returns database-level information from Dynamic Management Views.
You grant User1 access to execute the stored procedure.
You need to ensure that the stored procedure returns the required information when User1 executes the stored
procedure. You need to achieve this goal by granting the minimum permissions required.
Which two actions should you perform? Each correct answer presents part of the solution.
A. Grant the VIEW SERVER STATE permission to User1.
B. Move the stored procedure to the User1 schema.
C. Modify the stored procedure to include the EXECUTE AS OWNER statement. Grant VIEW SERVER STATE
permissions to the owner of the stored procedure.
D. Grant the db_datareader role on the database to User1.
E. Create a SQL Server login that has VIEW SERVER STATE permissions. Modify the stored procedure to include the
EXECUTE AS (new login) statement.
Correct Answer: CE
References: http://msdn.microsoft.com/en-us/library/ms187861.aspx http://msdn.microsoft.com/en-us/library/ms191291.aspx

 

QUESTION 13
You are a database administrator for a Microsoft SQL Server instance.
You need to ensure that data can be replicated from a production server to two reporting servers in real time.
You also need to ensure that data on the reporting server is always accessible.
Which solution should you use?
A. Availability Groups
B. Extended Events
C. Snapshot Replication
D. Policy-Based Management
Correct Answer: A
The AlwaysOn Availability Groups feature is a high-availability and disaster recovery solution that provides an enterprise-
a level alternative to database mirroring. Introduced in SQL Server 2012, AlwaysOn Availability Groups maximizes the
availability of a set of user databases for an enterprise. An availability group supports a failover environment for a
discrete set of user databases, known as availability databases, that fail over together. An availability group supports a
set of read-write primary databases and one to four sets of corresponding secondary databases. Optionally, secondary
databases can be made available for read-only access and/or some backup operations. An availability group fails over
at the level of an availability replica. Failovers are not caused by database issues such as a database becoming suspect
due to a loss of a data file, deletion of a database, or corruption of a transaction log.
References: https://docs.microsoft.com/en-us/previous-versions/sql/sql-server-2012/hh510230(v=sql.110)

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