Our system will accurately help you analyze the exercises of the 70-762 Training Kit study materials. So you need not to summarize by yourself. Then you will clearly know where you are good at and where your do badly. The close to 100% passing rate of our dumps allow you to be rest assured in our products. Not all vendors dare to promise that if you fail the exam, we will give you a full refund. I have confidence in our Omgzlook products that soon Omgzlook's exam questions and answers about Microsoft 70-762 Training Kit will be your choice and you will pass Microsoft certification 70-762 Training Kit exam successfully.
Actually, 70-762 Training Kit exam really make you anxious.
After our unremitting efforts, 70-762 - Developing SQL Databases Training Kit learning guide comes in everybody's expectation. Every version of 70-762 Reliable Exam Test study materials that we provide to you has its own advantage: the PDF version has no equipment limited, which can be read anywhere; the online version can use on any electronic equipment there is network available; the software version can simulate the real 70-762 Reliable Exam Test exam environment to let you have more real feeling to 70-762 Reliable Exam Test real exam, besides the software version can be available installed on unlimited number devices.
By passing the exams multiple times on practice test software, you will be able to pass the real 70-762 Training Kit test in the first attempt. With our 70-762 Training Kit practice test software, you can simply assess yourself by going through the 70-762 Training Kit practice tests. We highly recommend going through the 70-762 Training Kit answers multiple times so you can assess your preparation for the 70-762 Training Kit exam.
Our Microsoft 70-762 Training Kit free demo is available for all of you.
Our 70-762 Training Kit training materials have won great success in the market. Tens of thousands of the candidates are learning on our 70-762 Training Kit practice engine. First of all, our 70-762 Training Kit study dumps cover all related tests about computers. It will be easy for you to find your prepared learning material. If you are suspicious of our 70-762 Training Kit exam questions, you can download the free demo from our official websites.
Our website always trying to bring great convenience to our candidates who are going to attend the 70-762 Training Kit practice test. You can practice our 70-762 Training Kit dumps demo in any electronic equipment with our online test engine.
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
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: 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 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
You create tables by using the following Transact-SQL statements:
Each customer may have multiple addresses but only one is the primary address.
You must plan a solution that meets the following requirements:
* Return both customers and address information.
* Return only the primary address of the customer.
* Allow updates of all customer information and address details with the exception of the identity columns and the IsActive column.
Which three actions should you perform is sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Answer:
Just come and have a try on our CheckPoint 156-587 study questions! Comparing to PDF version, the software test engine of Microsoft Cisco 300-540 also can simulate the real exam scene so that you can overcome your bad mood for the real exam and attend exam casually. Therefore, you are able to get hang of the essential points in a shorter time compared to those who are not willing to use our ISQI CT-AI_v1.0_World exam torrent. The most important is that our test engine enables you practice CWNP CWT-101 exam pdf on the exact pattern of the actual exam. Passing a SAP C-S43-2023 exam to get a certificate will help you to look for a better job and get a higher salary.
Updated: May 28, 2022