What is more, our research center has formed a group of professional experts responsible for researching new technology of the 70-762 Test Simulator Free study materials. The technology of the 70-762 Test Simulator Free study materials will be innovated every once in a while. As you can see, we never stop innovating new version of the 70-762 Test Simulator Free study materials. With high-quality 70-762 Test Simulator Free guide materials and flexible choices of learning mode, they would bring about the convenience and easiness for you. Every page is carefully arranged by our experts with clear layout and helpful knowledge to remember. Because, after all, 70-762 Test Simulator Free is a very important certified exam of Microsoft.
MCP 70-762 This is a practice test website.
High quality 70-762 - Developing SQL Databases Test Simulator Free practice materials leave a good impression on the exam candidates and bring more business opportunities in the future. Omgzlook site has a long history of providing Microsoft 70-762 Reliable Exam Questions Vce exam certification training materials. It has been a long time in certified IT industry with well-known position and visibility.
Provided that you lose your exam with our 70-762 Test Simulator Free exam questions unfortunately, you can have full refund or switch other version for free. All the preoccupation based on your needs and all these explain our belief to help you have satisfactory and comfortable purchasing services on the 70-762 Test Simulator Free study guide. We assume all the responsibilities our 70-762 Test Simulator Free simulating practice may bring you foreseeable outcomes and you will not regret for believing in us assuredly.
Microsoft 70-762 Test Simulator Free - This certification gives us more opportunities.
If you are nervous on your 70-762 Test Simulator Free exam for you always have the problem on the time-schedule or feeling lack of confidence on the condition that you go to the real exam room. Our Software version of 70-762 Test Simulator Free study materials will be your best assistant. With the advantage of simulating the real exam environment, you can get a wonderful study experience with our 70-762 Test Simulator Free exam prep as well as gain the best pass percentage.
In the process of job hunting, we are always asked what are the achievements and what certificates have we obtained? Therefore, we get the test Microsoft certification and obtain the qualification certificate to become a quantitative standard, and our 70-762 Test Simulator Free learning guide can help you to prove yourself the fastest in a very short period of time. Life is short for each of us, and time is precious to us.
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 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: 3
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: 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
Fortinet NSE7_OTS-7.2 - Our online resources and events enable you to focus on learning just what you want on your timeframe. CWNP CWT-101 - If you make up your mind, choose us! When you purchase Oracle 1z0-915-1 exam dumps from Omgzlook, you never fail Oracle 1z0-915-1 exam ever again. Microsoft DP-203-KR - Of course, their service attitude is definitely worthy of your praise. EMC D-ZT-DS-23 - Omgzlook trusts in displacing all the qualms before believing us.
Updated: May 28, 2022