If you fail the exam, we will give you FULL REFUND. Omgzlook practice test materials are used with no problem. Using Omgzlook exam dumps, you will achieve success. Our 70-762 New Practice Questions Pdf learning quiz is a salutary guidance helping you achieve success. The numerous feedbacks from our clients praised and tested our strength on this career, thus our 70-762 New Practice Questions Pdf practice materials get the epithet of high quality and accuracy. If you are still preparing for other IT certification exams except 70-762 New Practice Questions Pdf exam, you can also find the related exam dumps you want in our huge dumps and study materials.
MCP 70-762 We believe that you will like our products.
As we will find that, get the test 70-762 - Developing SQL Databases New Practice Questions Pdf certification, acquire the qualification of as much as possible to our employment effect is significant. In the process of using the Developing SQL Databases study question, if the user has some problems, the IT professor will 24 hours online to help users solve, the user can send email or contact us on the online platform. Of course, a lot of problems such as soft test engine appeared some faults or abnormal stating run phenomenon of our New Examcollection 70-762 exam question, these problems cannot be addressed by simple language, we will service a secure remote assistance for users and help users immediate effectively solve the existing problems of our New Examcollection 70-762 torrent prep, thus greatly enhance the user experience, beneficial to protect the user's learning resources and use digital tools, let users in a safe and healthy environment to study New Examcollection 70-762 exam question.
If there is an update system, we will automatically send it to you. Therefore, we can guarantee that our 70-762 New Practice Questions Pdf test torrent has the latest knowledge and keep up with the pace of change. Many people are worried about electronic viruses of online shopping.
Microsoft 70-762 New Practice Questions Pdf - Just be confident to face new challenge!
As we enter into such a competitive world, the hardest part of standing out from the crowd is that your skills are recognized then you will fit into the large and diverse workforce. The 70-762 New Practice Questions Pdf certification is the best proof of your ability. However, it’s not easy for those work officers who has less free time to prepare such an 70-762 New Practice Questions Pdf exam. Here comes 70-762 New Practice Questions Pdf exam materials which contain all of the valid 70-762 New Practice Questions Pdf study questions. You will never worry about the 70-762 New Practice Questions Pdf exam.
In the meantime, all your legal rights will be guaranteed after buying our 70-762 New Practice Questions Pdf study materials. For many years, we have always put our customers in top priority.
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
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
So we never stop the pace of offering the best services and EMC D-PST-OE-23 practice materials for you. Even the HP HPE0-G01 test syllabus is changing every year; our experts still have the ability to master the tendency of the important knowledge as they have been doing research in this career for years. Our EMC D-CIS-FN-23 study materials provide a promising help for your EMC D-CIS-FN-23 exam preparation whether newbie or experienced exam candidates are eager to have them. If you are preparing for the exam by the guidance of the ITIL ITIL-4-Foundation study practice question from our company and take it into consideration seriously, you will absolutely pass the exam and get the related certification. With our EMC D-RP-OE-A-24 study guide, not only that you can pass you exam easily and smoothly, but also you can have a wonderful study experience based on the diversed versions of our EMC D-RP-OE-A-24 training prep.
Updated: May 28, 2022