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We provide the latest, most effective 70-457 practice questions for Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1 Exam, with the questions and answers we specially prepared, you can quickly grasp the points you need for Microsoft Certified Specialist 70-457 Dumps. To help with these preparations there are plenty of 70-457 study materials available on the Internet that can dispel all these fears and nervousness.
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Exam Number/Code : 70-457
Exam Name : Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1
One year free update
Once failed,100% refund
Free 70-457 sample Dumps Download
Questions and Answers : 50Q&As
Update Time : 2012-11-1
Price : $89.00
Audience Profile
This exam is intended for candidates who have already earned any one of the MCTS certifications on SQL Server 2008 and who wish to transition their skills to MCSA: SQL Server 2012.
Credit Toward Certification
Exam 70-457: Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1: counts as credit toward the following certification(s):
•MCSA: SQL Server 2012
Exam 70-457: Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1
Troubleshoot and Optimize Queries
•Optimize queries.
◦This objective may include but is not limited to: understand statistics; read query plans; plan guides; DMVs; hints; statistics IO; dynamic vs. parameterized queries; describe the different join types (HASH, MERGE, LOOP) and describe the scenarios in which they would be used
•Manage transactions.
◦This objective may include but is not limited to: mark a transaction; understand begin tran, commit, and rollback; implicit vs. explicit transactions; isolation levels; scope and type of locks; trancount
•Evaluate the use of row-based operations vs. set-based operations.
◦This objective may include but is not limited to: when to use cursors; impact of scalar UDFs; combine multiple DML operations
•Implement error handling.
◦This objective may include but is not limited to: implement try/catch/throw; use set based rather than row based logic; transaction management
Free 70-457 pdf sample Dumps Download
You are developing a database app lication by using Microsoft SQL Server 2012. An application that
uses a database begins to run slowly. Your investigation shows the root cause is a query against a
read -only table that has a clustered index. The query returns the following six columns:
• One column in its WHERE clause contained in a non-clustered index
• Four additional columns
• One COUNT (*) column based on a grouping of the four additional columns
You need to optimize the statement. What should you do?
A. Add a HASH hint to the query.
B. Add a LOOP hint to the query.
C. Add a FORCESEEK hint to the query.
D. Add an INCLUDE clause to the index.
E. Add a FORCESCAN hint to the Attach query.
F. Add a columnstore index to cover the query.
G. Enable the optimize for ad hoc workloads option .
H. Cover the unique clustered index with a columnstore index.
I. Include a SET FORCEPLAN ON statement before you run the query.
J. Include a SET STATISTICS PROFILE ON statement before you run the query.
K. Include a SET STATISTICS SHOWPLAN_XML ON statement before you run the query.
L. Include a SET TRANSACTION ISOLATION LEVEL REPEATABLE READ statement before you run the query.
M. Include a SET TRANSACTION ISOLATION LEVEL SNAPSHOT statement before you run the query.
N. Include a SET TRANSACTION ISOLATION L EVEL SERIALIZABLE statement before you run the query.
Answer: F
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Article From : http://www.exam4actual.com/news/70-457examdumpsquestions.html
We provide the latest, most effective 70-457 practice questions for Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1 Exam, with the questions and answers we specially prepared, you can quickly grasp the points you need for Microsoft Certified Specialist 70-457 Dumps. To help with these preparations there are plenty of 70-457 study materials available on the Internet that can dispel all these fears and nervousness.
Microsoft 70-457 exam dumps will guide you through the path of your destination in blink of an eye. Easy to understand and learn, from Exam4actual Microsoft Certification 70-457 pdf download are also available in PDF format, so that the candidate can learn and understand from his certification course in a better way. Our 70-457 microsoft allow students to prepare for their exam the way they want to.
Exam Number/Code : 70-457
Exam Name : Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1
One year free update
Once failed,100% refund
Free 70-457 sample Dumps Download
Questions and Answers : 50Q&As
Update Time : 2012-11-1
Price : $89.00
Audience Profile
This exam is intended for candidates who have already earned any one of the MCTS certifications on SQL Server 2008 and who wish to transition their skills to MCSA: SQL Server 2012.
Credit Toward Certification
Exam 70-457: Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1: counts as credit toward the following certification(s):
•MCSA: SQL Server 2012
Exam 70-457: Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1
Troubleshoot and Optimize Queries
•Optimize queries.
◦This objective may include but is not limited to: understand statistics; read query plans; plan guides; DMVs; hints; statistics IO; dynamic vs. parameterized queries; describe the different join types (HASH, MERGE, LOOP) and describe the scenarios in which they would be used
•Manage transactions.
◦This objective may include but is not limited to: mark a transaction; understand begin tran, commit, and rollback; implicit vs. explicit transactions; isolation levels; scope and type of locks; trancount
•Evaluate the use of row-based operations vs. set-based operations.
◦This objective may include but is not limited to: when to use cursors; impact of scalar UDFs; combine multiple DML operations
•Implement error handling.
◦This objective may include but is not limited to: implement try/catch/throw; use set based rather than row based logic; transaction management
Free 70-457 pdf sample Dumps Download
You are developing a database app lication by using Microsoft SQL Server 2012. An application that
uses a database begins to run slowly. Your investigation shows the root cause is a query against a
read -only table that has a clustered index. The query returns the following six columns:
• One column in its WHERE clause contained in a non-clustered index
• Four additional columns
• One COUNT (*) column based on a grouping of the four additional columns
You need to optimize the statement. What should you do?
A. Add a HASH hint to the query.
B. Add a LOOP hint to the query.
C. Add a FORCESEEK hint to the query.
D. Add an INCLUDE clause to the index.
E. Add a FORCESCAN hint to the Attach query.
F. Add a columnstore index to cover the query.
G. Enable the optimize for ad hoc workloads option .
H. Cover the unique clustered index with a columnstore index.
I. Include a SET FORCEPLAN ON statement before you run the query.
J. Include a SET STATISTICS PROFILE ON statement before you run the query.
K. Include a SET STATISTICS SHOWPLAN_XML ON statement before you run the query.
L. Include a SET TRANSACTION ISOLATION LEVEL REPEATABLE READ statement before you run the query.
M. Include a SET TRANSACTION ISOLATION LEVEL SNAPSHOT statement before you run the query.
N. Include a SET TRANSACTION ISOLATION L EVEL SERIALIZABLE statement before you run the query.
Answer: F
we offer best quality 70-462 dumps test papers and 70-463 VCE test engine. You can get our 100% guaranteed 000-781 exam questions & 70-410 dumps to help you in passing the real exam.
Article From : http://www.exam4actual.com/news/70-457examdumpsquestions.html
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