So our 70-762 Test Questions latest dumps are highly effective to make use of. We offer free demos as your experimental tryout before downloading our real 70-762 Test Questions exam questions. For more textual content about practicing exam questions, you can download our products with reasonable prices and get your practice begin within 5 minutes. Once you find it unsuitable for you, you can choose other types of the study materials. You will never be forced to purchase our 70-762 Test Questions test answers. They are the versions of the PDF, Software and APP online.
MCP 70-762 We provide free PDF demo for each exam.
MCP 70-762 Test Questions - Developing SQL Databases Our staff made great efforts to ensure that you always get good grades in examinations. To pass the certification exam, you need to select right Reliable 70-762 Test Materials study guide and grasp the overall knowledge points of the real exam. The test questions from our Reliable 70-762 Test Materials dumps collection cover almost content of the exam requirement and the real exam.
Are you worried about how to passs the terrible Microsoft 70-762 Test Questions exam? Do not worry, With Omgzlook's Microsoft 70-762 Test Questions exam training materials in hand, any IT certification exam will become very easy. Omgzlook's Microsoft 70-762 Test Questions exam training materials is a pioneer in the Microsoft 70-762 Test Questions exam certification preparation.
Microsoft 70-762 Test Questions - Remember, the fate is in your own hands.
Our 70-762 Test Questions real dumps has received popular acceptance worldwide with tens of thousands of regular exam candidates who trust our proficiency. Up to now, the passing rate is 98 to 100 percent. What made our 70-762 Test Questions study guide so amazing? The answer that we only supply the latest and valid 70-762 Test Questions exam braindumps for our customers and first-class after-sales services come after the first-class 70-762 Test Questions learning engine. We're also widely praised by our perfect services.
With this certification you will not be eliminated, and you will be a raise. Some people say that to pass the Microsoft 70-762 Test Questions exam certification is tantamount to success.
70-762 PDF DEMO:
QUESTION NO: 1
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: 2
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:
QUESTION NO: 3
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: 4
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: 5
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
HP HP2-I72 - In a word, Wwe have data protection act for you to avoid information leakage! IBM C1000-161 - So, it can save much time for us. During the trial period of our Qlik QREP study materials, the PDF versions of the sample questions are available for free download, and both the pc version and the online version can be illustrated clearly. CompTIA 220-1102 - This is because IT experts can master the question point well, so that all questions the candidates may come across in the actual test are included in Omgzlook exam dumps. Most of these questions are likely to appear in the Microsoft MB-230 real exam.
Updated: May 28, 2022