2016年11月23日星期三

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Exam Code: 70-410

Exam Name: Installing and Configuring Windows Server 2012

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70-410 Expert Total Q&A: 480 Questions and Answers

Last Update: 2016-11-23

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Exam Code: 70-465

Exam Name: Designing Database Solutions for Microsoft SQL Server 2012

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70-465 pass rate Total Q&A: 111 Questions and Answers

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Exam Code: 070-417

Exam Name: Upgrading Your Skills to MCSAWindows Server 2012

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070-417 exam vce format Total Q&A: 455 Questions and Answers

Last Update: 2016-11-23

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NO.1 You have a SQL Server 2014 database named DB1.
You plan to import a large number of records from a SQL Azure database to DB1.
You need to recommend a solution to minimize the amount of space used in the transaction log
during the import operation.
What should you include in the recommendation?
A. A new log file
B. A new partitioned table
C. The full recovery model
D. A new file group
E. The bulk-logged recovery model
Answer: E

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Explanation:
Compared to the full recovery model, which fully logs all transactions, the bulk-logged
recovery model minimally logs bulk operations, although fully logging other transactions.
The bulk-logged recovery model protects against media failure and, for bulk operations,
provides the best performance and least log space usage.
Note:
The bulk-logged recovery model is a special-purpose recovery model that should be used
only intermittently to improve the performance of certain large-scale bulk operations, such
as bulk imports of large amounts of data.
Reference: Recovery Models (SQL Server)

NO.2 You administer a SQL Server 2014 instance.
Users report that the SQL Server has seemed slow today. A large database was being restored for
much of the day, which could be causing issues.
You want to write a query of the system views that will report the following:
- Number of users that have a connection to the server
- Whether a user's connection is active
- Whether any connections are blocked
- What queries are being executed
Whether the database restore is still executing and, if it is, what percentage of the restore is
complete.
Which system objects should you use in your query to best achieve this task?
A. sys.dm_exec_sessions, sys.dm_exec_query_stats, sys.dm_exec_query_text,sys.objects
B. sys.dm_exec_requests, sys.dm_exec_sessions, sys.dm_exec_query_text
C. sys.dm_exec_requests, sys.dm_exec_sessions, sys.objects
D. sys.sysprocesses, sys.dm_exec_query_text, sys.objects
Answer: B

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Explanation:
*sys.dm_exec_requests
Returns information about each request that is executing within SQL Server.
*sys.dm_exec_sessions
Returns one row per authenticated session on SQL Server. sys.dm_exec_sessions is a server-scope
view that shows information about all active user connections and internal
tasks. This information includes client version, client program name, client login time, login user,
current session setting, and more.
*sys.dm_exec_query_text
Returns the text of the SQL batch that is identified by the specified sql_handle.
References:
sys.dm_exec_requests (Transact-SQL)
sys.dm_exec_sessions (Transact-SQL)
Incorrect:
*sys.dm_exec_query_stats Returns aggregate performance statistics for cached query plans in SQL
Server.
The view contains one row per query statement within the cached plan, and the lifetime of the rows
are tied to the plan itself.
*sys.objects Contains a row for each user-defined, schema-scoped object that is created within a
database.

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