70-762 Reliable Test Testking practice materials are typically seen as the tools of reviving, practicing and remembering necessary exam questions for the exam, spending much time on them you may improve the chance of winning. However, our 70-762 Reliable Test Testking training materials can offer better condition than traditional practice materials and can be used effectively. We treat it as our major responsibility to offer help so our 70-762 Reliable Test Testking practice guide can provide so much help, the most typical one is their efficiency. Such important exam, you also want to attend the exam. Microsoft 70-762 Reliable Test Testking certification exam is a very difficult test. 70-762 Reliable Test Testking practice materials are highly popular in the market compared with other materials from competitors whether on the volume of sales or content as well.
MCP 70-762 Some of them can score more than 90%.
MCP 70-762 Reliable Test Testking - Developing SQL Databases They can be obtained within five minutes. Good 70-762 Training Online study guide will be a shortcut for you to well-directed prepare and practice efficiently, you will avoid do much useless efforts and do something interesting. Omgzlook releases 100% pass-rate 70-762 Training Online study guide files which guarantee candidates 100% pass exam in the first attempt.
All exam materials in 70-762 Reliable Test Testking learning materials contain PDF, APP, and PC formats. They have the same questions and answers but with different using methods. If you like to take notes randomly according to your own habits while studying, we recommend that you use the PDF format of our 70-762 Reliable Test Testking study guide.
Microsoft 70-762 Reliable Test Testking - God will help those who help themselves.
70-762 Reliable Test Testking real dumps revised and updated according to the syllabus changes and all the latest developments in theory and practice, our Developing SQL Databases real dumps are highly relevant to what you actually need to get through the certifications tests. Moreover they impart you information in the format of 70-762 Reliable Test Testking questions and answers that is actually the format of your real certification test. Hence not only you get the required knowledge but also find the opportunity to practice real exam scenario.
So don't waste time and come to buy our 70-762 Reliable Test Testking study braindumps. As you can see, our 70-762 Reliable Test Testking practice exam will not occupy too much time.
70-762 PDF DEMO:
QUESTION NO: 1
Note: This question is part of a series of questions that present the same scenario. Each question in this series contains a unique solution. Determine whether the solution meets the stated goals.
The Account table was created by using the following Transact-SQL statement:
There are more than 1 billion records in the Account table. The Account Number column uniquely identifies each account. The ProductCode column has 100 different values. The values are evenly distributed in the table. Table statistics are refreshed and up to date.
You frequently run the following Transact-SQL SELECT statements:
You must avoid table scans when you run the queries.
You need to create one or more indexes for the table.
Solution: You run the following Transact-SQL statement:
CREATE CLUSTERED INDEX PK_Account ON Account(ProductCode);
Does the solution meet the goal?
A. No
B. Yes
Answer: A
Explanation
We need an index on the productCode column as well.
References: https://msdn.microsoft.com/en-us/library/ms190457.aspx
QUESTION NO: 2
Database users report that SELECT statements take a long time to return results. You run the following Transact-SQL statement:
You need to create one nonclustered covering index that contains all of the columns in the above table. You must minimize index key size.
Which Transact-SQL statement should you run?
A. CREATE NONCLUSTERED INDEX IX_User ON Users (UserStatus, CountryCode) INCLUDE
(UserName);
B. CREATE NONCLUSTERED INDEX IX_User ON Users (CountryCode, UserStatus, UserName);
C. CREATE NONCLUSTERED INDEX IX_User ON Users (CountryCode, UserStatus) INCLUDE
(UserName);
D. CREATE NONCLUSTERED INDEX IX_User ON Users (CountryCode, UserName);
Answer: C
Explanation
https://docs.microsoft.com/en-us/sql/relational-databases/indexes/create-indexes-with-included- columns
QUESTION NO: 3
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution. Determine whether the solution meets the stated goals.
You have a table that has a clustered index and a nonclustered index. The indexes use different columns from the table. You have a query named Users report that Query1 takes a long time to report results. You run and review the following statistics for an index seek operation:
You need to resolve the performance issue.
Solution: You rebuild the clustered index.
Does the solution meet the goal?
A. No
B. Yes
Answer: A
Explanation
The query uses the nonclustered index, so improving the clustered index will not help.
We should update statistics for the nonclustered index.
QUESTION NO: 4
Note: This question is part of a series of questions that use the same or similar answer choices. An Answer choice may be correct for more than one question in the series. Each question independent of the other questions in this series. Information and details provided in a question apply only to that question.
You are a database developer for a company. The company has a server that has multiple physical disks. The disks are not part of a RAID array. The server hosts three Microsoft SQL Server instances.
There are many SQL jobs that run during off-peak hours.
You must monitor the SQL Server instances in real time and optimize the server to maximize throughput, response time, and overall SQL performance.
You need to create a baseline set of metrics to report how the computer running SQL Server operates under normal load. The baseline must include the resource usage associated with the server processes.
What should you do?
A. Create a SQL Profiler trace.
B. Create a sp_configure 'max server memory' query.
C. Create a sys.dm_os_memory_objects query.
D. Create a Performance Monitor Data Collector Set.
E. Create asys.dm_os_wait_stats query.
F. Create an Extended Event.
G. Create a sys.dm_os_waiting_tasks query.
H. Create a sys.dm_exec_sessions query.
Answer: C
Explanation
sys.dm_os_memory_objects returns memory objects that are currently allocated by SQL Server. You can usesys.dm_os_memory_objects to analyze memory use and to identify possible memory leaks.
Example: The following example returns the amount of memory allocated by each memory object type.
SELECT SUM (pages_in_bytes) as 'Bytes Used', type
FROMsys.dm_os_memory_objects
GROUP BY type
ORDER BY 'Bytes Used' DESC;
GO
QUESTION NO: 5
You are reviewing the execution plans in the query plan cache. You observe the following:
- There are a large number of single use plans.
- There are a large number of simple execution plans that use multiple CPU cores.
You need to configure the server to optimize query plan execution.
Which two setting should you modify on the properties page for the Microsoft SQL Server instance?
To answer, select the appropriate settings in the answer area.
Answer:
Explanation
* Optimize for ad hoc workloads
The optimize for ad hoc workloads option is used to improve the efficiency of the plan cache for workloads that contain many single use ad hoc batches. When this option is set to 1, the Database
Engine stores a small compiled plan stub in the plan cache when a batch is compiled for the first time, instead of the full compiled plan. This helps to relieve memory pressure by not allowing the plan cache to become filled with compiled plans that are not reused.
* Cost Threshold for Parallelism
Use the cost threshold for parallelism option to specify the threshold at which Microsoft SQL Server creates and runs parallel plans for queries. SQL Server creates and runs a parallel plan for a query only when the estimated cost to run a serial plan for the same query is higher than the value set in cost threshold for parallelism. The cost refers to an estimated elapsed time in seconds required to run the serial plan on a specific hardware configuration.
5 means 5 seconds, but is is 5 seconds on a machine internal to Microsoft from some time in the
1990s.
There's no way to relate it to execution time on your current machine, so we treat it as a pure number now.
Raising it to 50 is a common suggestion nowadays, so that more of your simpler queries run on a single thread.
We are facilitating the customers for the Microsoft Microsoft MD-102 preparation with the advanced preparatory tools. We believe our study materials will be very useful and helpful for all people who are going to prepare for the EMC D-PEMX-DY-23 exam. Our Huawei H20-423_V1.0 study materials offer you a free trial service, and you can download our trial questions bank for free. CIW 1D0-622 - Of course, if you choose our study materials, you will have the chance to experience our PDF version. Additionally, the Genesys GCX-SCR exam takers can benefit themselves by using our testing engine and get numerous real Genesys GCX-SCR exam like practice questions and answers.
Updated: May 28, 2022