Apart from basic knowledge, we have made use of the newest technology to enrich your study of the 70-762 Files exam study materials. Online learning platform is different from traditional learning methods. One of the great advantages is that you will soon get a feedback after you finish the exercises. 70-762 Files test question will change your perception. 70-762 Files learning dumps aim to help students learn easily and effectively that has been developed over many years by many industry experts. 70-762 Files exam prep look forward to meeting you.
MCP 70-762 As we all know, time and tide wait for no man.
When you try our part of Microsoft certification 70-762 - Developing SQL Databases Files exam practice questions and answers, you can make a choice to our Omgzlook. Now Omgzlook provide you a effective method to pass Microsoft certification Reliable 70-762 Exam Sims exam. It will play a multiplier effect to help you pass the exam.
Since Microsoft 70-762 Files certification is so popular and our Omgzlook can not only do our best to help you pass the exam, but also will provide you with one year free update service, so to choose Omgzlook to help you achieve your dream. For tomorrow's success, is right to choose Omgzlook. Selecting Omgzlook, you will be an IT talent.
Microsoft 70-762 Files - I wish you good luck.
Omgzlook website is fully equipped with resources and the questions of Microsoft 70-762 Files exam, it also includes the Microsoft 70-762 Files exam practice test. Which can help candidates prepare for the exam and pass the exam. You can download the part of the trial exam questions and answers as a try. Omgzlook provide true and comprehensive exam questions and answers. With our exclusive online Microsoft 70-762 Files exam training materials, you'll easily through Microsoft 70-762 Files exam. Our site ensure 100% pass rate.
IT authentication certificate is a best proof for your IT professional knowledge and experience. Microsoft 70-762 Files is a very important certification exam in the IT industry and passing Microsoft certification 70-762 Files exam is very difficult.
70-762 PDF DEMO:
QUESTION NO: 1
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: 2
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: 3
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: 4
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: 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
SAP C_IEE2E_2404 - Omgzlook speak with the facts, the moment when the miracle occurs can prove every word we said. SAP C-THR81-2405 - It is a necessary part of the IT field of information technology. Microsoft Amazon DOP-C02 certification exam will definitely lead you to a better career prospects. Omgzlook Microsoft IBM C1000-162 exam training materials bear with a large number of the exam questions you need, which is a good choice. Amazon SOA-C02-KR - It can guarantee you 100% pass the exam.
Updated: May 28, 2022