So you are able to adjust your learning plan of the 70-762 Study Materials guide test flexibly. We hope that our new design can make study more interesting and colorful. You also can send us good suggestions about developing the study material. Even if you are a newcomer who has just entered the industry, you can learn all the knowledge points without any obstacles. We believe that 70-762 Study Materials study tool will make you fall in love with learning. You can consult online no matter what problems you encounter.
MCP 70-762 But you must have a browser on your device.
Therefore, we believe that you will never regret to use the 70-762 - Developing SQL Databases Study Materials exam dumps. Today, our Latest 70-762 Practice Questions Files exam materials will radically change this. High question hit rate makes you no longer aimless when preparing for the exam, so you just should review according to the content of our Latest 70-762 Practice Questions Files study guide prepared for you.
So there is nothing to worry about, just buy our 70-762 Study Materials exam questions. It is our consistent aim to serve our customers wholeheartedly. Our 70-762 Study Materials real exam try to ensure that every customer is satisfied, which can be embodied in the convenient and quick refund process.
Microsoft 70-762 Study Materials - Our sales volumes are beyond your imagination.
When you try our part of Microsoft certification 70-762 Study Materials exam practice questions and answers, you can make a choice to our Omgzlook. We will be 100% providing you convenience and guarantee. Remember that making you 100% pass Microsoft certification 70-762 Study Materials exam is Omgzlook.
It will play a multiplier effect to help you pass the exam. If you still desperately cram knowledge and spend a lot of precious time and energy to prepare for passing Microsoft certification 70-762 Study Materials exam, and at the same time do not know how to choose a more effective shortcut to pass Microsoft certification 70-762 Study Materials exam.
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:
Since Microsoft Fortinet FCP_FMG_AD-7.4 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. Now you can free download part of practice questions and answers of Microsoft certification EMC D-VXR-DS-00 exam on Omgzlook. People who have got Microsoft SAP C_ARSOR_2404 certification often have much higher salary than counterparts who don't have the certificate. Omgzlook's practice questions and answers about the Microsoft certification Fortinet FCP_FGT_AD-7.4 exam is developed by our expert team's wealth of knowledge and experience, and can fully meet the demand of Microsoft certification Fortinet FCP_FGT_AD-7.4 exam's candidates. Dell D-PDPS-A-01 - Omgzlook is the best catalyst to help IT personage be successful.
Updated: May 28, 2022