Our 70-762 New Dumps Book study materials concentrate the essence of exam materials and seize the focus information to let the learners master the key points. And our 70-762 New Dumps Book learning materials provide multiple functions and considerate services to help the learners have no inconveniences to use our product. We guarantee to the clients if only they buy our study materials and learn patiently for some time they will be sure to pass the 70-762 New Dumps Book test with few failure odds. If you want to get security that you can pass Microsoft 70-762 New Dumps Book certification exam at the first attempt, Omgzlook Microsoft 70-762 New Dumps Book exam dumps is your unique and best choice. It is the dumps that you can't help praising it. Among them, the software model is designed for computer users, can let users through the use of Windows interface to open the 70-762 New Dumps Book test prep of learning.
MCP 70-762 We will provide you with thoughtful service.
We are ready to show you the most reliable 70-762 - Developing SQL Databases New Dumps Book pdf vce and the current exam information for your preparation of the test. By the way, the Exam 70-762 Bookcertificate is of great importance for your future and education. Our Exam 70-762 Book practice materials cover all the following topics for your reference.
Our 70-762 New Dumps Book exam dumps are required because people want to get succeed in IT field by clearing the certification exam. Passing 70-762 New Dumps Book practice exam is not so easy and need to spend much time to prepare the training materials, that's the reason that so many people need professional advice for 70-762 New Dumps Book exam prep. The 70-762 New Dumps Book dumps pdf are the best guide for them passing test.
Microsoft 70-762 New Dumps Book - In fact, our aim is the same with you.
For a long time, high quality is our 70-762 New Dumps Book exam questions constantly attract students to participate in the use of important factors, only the guarantee of high quality, to provide students with a better teaching method, and at the same time the 70-762 New Dumps Book practice quiz brings more outstanding teaching effect. Our high-quality 70-762 New Dumps Book} learning guide help the students know how to choose suitable for their own learning method, our 70-762 New Dumps Book study materials are a very good option.
More importantly, it is evident to all that the 70-762 New Dumps Book training materials from our company have a high quality, and we can make sure that the quality of our products will be higher than other study materials in the market. If you want to pass the 70-762 New Dumps Book exam and get the related certification in the shortest time, choosing the 70-762 New Dumps Book training materials from our company will be in the best interests of all people.
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
All the preparation material reflects latest updates in EMC D-PST-MN-A-24 certification exam pattern. IBM C1000-180 - The trick to the success is simply to be organized, efficient, and to stay positive about it. IBM S2000-018 - This innovative facility provides you a number of practice questions and answers and highlights the weak points in your learning. ISACA CISA-KR - At the same time, you will have more income to lead a better life and develop your life quality. Genesys GCX-SCR - Our behavior has been strictly ethical and responsible to you, which is trust worthy.
Updated: May 28, 2022