You can free download part of Omgzlook's exercises and answers about Microsoft certification 70-762 Exam Guide Files exam as a try, then you will be more confident to choose our Omgzlook's products to prepare your Microsoft certification 70-762 Exam Guide Files exam. Please add Omgzlook's products in you cart quickly. You can choose your most desirable way to practice on the daily basis. Our 70-762 Exam Guide Files exam prep is subservient to your development. Omgzlook's products can not only help you successfully pass Microsoft certification 70-762 Exam Guide Files exams, but also provide you a year of free online update service，which will deliver the latest product to customers at the first time to let them have a full preparation for the exam.
MCP 70-762 With it, you will pass the exam easily.
MCP 70-762 Exam Guide Files - Developing SQL Databases Our product is of high quality and the passing rate and the hit rate are both high. Even if you spend a small amount of time to prepare for 70-762 Latest Exam Objectives Pdf certification, you can also pass the exam successfully with the help of Omgzlook Microsoft 70-762 Latest Exam Objectives Pdf braindump. Because Omgzlook exam dumps contain all questions you can encounter in the actual exam, all you need to do is to memorize these questions and answers which can help you 100% pass the exam.
70-762 Exam Guide Files 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 Exam Guide Files 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 Exam Guide Files practice guide can provide so much help, the most typical one is their efficiency.
Microsoft 70-762 Exam Guide Files - If you fail, don't forget to learn your lesson.
All exam materials in 70-762 Exam Guide Files 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 Exam Guide Files study guide. And besides, you can take it with you wherever you go for it is portable and takes no place. So the PDF version of our 70-762 Exam Guide Files exam questions is convenient.
Downloading the 70-762 Exam Guide Files free demo doesn't cost you anything and you will learn about the pattern of our practice exam and the accuracy of our 70-762 Exam Guide Files test answers. We constantly check the updating of 70-762 Exam Guide Files vce pdf to follow the current exam requirement and you will be allowed to free update your pdf files one-year.
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 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: 2
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.
QUESTION NO: 3
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: 4
You have a reporting application that uses a table named Table1. You deploy a new batch update process to perform updates to Table1.
The environment is configured with the following properties:
* The database is configured with the default isolation setting.
* The application and process use the default transaction handling.
You observe the application cannot access any rows that are in use by the process.
You have the following requirements:
* Ensure the application is not blocked by the process.
* Ensure the application has a consistent view of the data
* Ensure the application does not read dirty data.
You need to resolve the issue and meet the requirements with the least amount of administrative effort.
What should you do?
A. Enable the database for the READ_COMITTED_SNAPSHOT isolation level.
B. Enable the database for the ALLOW_SNAPSHOT_ISOLATION isolation level. Modify the application and the update process for the SNAPSHOT isolation level.
C. Enable the database for the ALLOW_SNAPSHOT_ISOLATION isolation level. Modify the application for the SERIALIZABLE isolation level.
D. Enable the application for the WITH (NOLOCK) hint.
Answer: A
Explanation
Snapshot isolation must be enabled by setting the ALLOW_SNAPSHOT_ISOLATION ON database option before it is used in transactions. This activates the mechanism for storing row versions in the temporary database (tempdb).
READ COMMITTED is the default isolation level for SQL Server. It prevents dirty reads by specifying that statements cannot read data values that have been modified but not yet committed by other transactions. Other transactions can still modify, insert, or delete data between executions of individual statements within the current transaction, resulting in non-repeatable reads, or "phantom" data.
QUESTION NO: 5
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
We often ask, what is the purpose of learning? Why should we study? Why did you study for SAP C-S4CPR-2408exam so long? As many people think that, even if one day we forget the formula for the area of a triangle, we can still live very well, but if it were not for the knowledge of learning SAP C-S4CPR-2408 exam and try to obtain certification, how can we have the opportunity to good to future life? So, the examination is necessary, only to get the test SAP C-S4CPR-2408 certification, get a certificate, to prove better us, to pave the way for our future life. Our Salesforce ANC-301 practice exam available in three modes, pdf files, and PC test engine and online test engine, which apply to any level of candidates. Improving your efficiency and saving your time has always been the goal of our Adobe AD0-E716 preparation exam. Microsoft MB-500 online test engine is selected by many candidates because of its intelligence and interactive features. TeraData TDVCL2 - The clients can choose the version which supports their equipment on their hands to learn.
Updated: May 28, 2022