To improve our products’ quality we employ first-tier experts and professional staff and to ensure that all the clients can pass the test we devote a lot of efforts to compile the 070-762 Exam Simulator Free learning guide. Even if you unfortunately fail in the test we won’t let you suffer the loss of the money and energy and we will return your money back at the first moment. After you pass the 070-762 Exam Simulator Free test you will enjoy the benefits the certificate brings to you such as you will be promoted by your boss in a short time and your wage will surpass your colleagues. Money back guaranteed and so on. Purchasing our 070-762 Exam Simulator Free real questions answers will share worry-free shopping. Our 070-762 Exam Simulator Free exam questions can help you compensate for the mistakes you have made in the past.
MCP 070-762 So stop hesitation and buy our study materials.
Preparing for the 070-762 - Developing SQL Databases Exam Simulator Free real exam is easier if you can select the right test questions and be sure of the answers. So you just need to memorize our correct questions and answers of the 070-762 Latest Real Test Questions study materials. You absolutely can pass the exam.
Our website offers you the most comprehensive 070-762 Exam Simulator Free study guide for the actual test and the best quality service for aftersales. Our customers can easily access and download the 070-762 Exam Simulator Free dumps pdf on many electronic devices including computer, laptop and Mac. Online test engine enjoys great reputation among IT workers because it brings you to the atmosphere of 070-762 Exam Simulator Free real exam and remarks your mistakes.
Microsoft 070-762 Exam Simulator Free - And your life will become better and better.
Our 070-762 Exam Simulator Free practice dumps is high quality product revised by hundreds of experts according to the changes in the syllabus and the latest developments in theory and practice, it is focused and well-targeted, so that each student can complete the learning of important content in the shortest time. With 070-762 Exam Simulator Free training prep, you only need to spend 20 to 30 hours of practice before you take the 070-762 Exam Simulator Free exam.
Our 070-762 Exam Simulator Free test torrent keep a look out for new ways to help you approach challenges and succeed in passing the Developing SQL Databases exam. An ancient Chinese proverb states that “The journey of a thousand miles starts with a single step”.
070-762 PDF DEMO:
QUESTION NO: 1
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: 2
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
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 use the same or similar answer choices. An Answer choice may be correct for more than one question in the series. Each question independent of the other questions in this series. Information and details provided in a question apply only to that question.
You are a database developer for a company. The company has a server that has multiple physical disks. The disks are not part of a RAID array. The server hosts three Microsoft SQL Server instances.
There are many SQL jobs that run during off-peak hours.
You must monitor the SQL Server instances in real time and optimize the server to maximize throughput, response time, and overall SQL performance.
You need to create a baseline set of metrics to report how the computer running SQL Server operates under normal load. The baseline must include the resource usage associated with the server processes.
What should you do?
A. Create a SQL Profiler trace.
B. Create a sp_configure 'max server memory' query.
C. Create a sys.dm_os_memory_objects query.
D. Create a Performance Monitor Data Collector Set.
E. Create asys.dm_os_wait_stats query.
F. Create an Extended Event.
G. Create a sys.dm_os_waiting_tasks query.
H. Create a sys.dm_exec_sessions query.
Answer: C
Explanation
sys.dm_os_memory_objects returns memory objects that are currently allocated by SQL Server. You can usesys.dm_os_memory_objects to analyze memory use and to identify possible memory leaks.
Example: The following example returns the amount of memory allocated by each memory object type.
SELECT SUM (pages_in_bytes) as 'Bytes Used', type
FROMsys.dm_os_memory_objects
GROUP BY type
ORDER BY 'Bytes Used' DESC;
GO
QUESTION NO: 5
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.
Oracle 1z0-1042-24 - Microsoft is among one of the strong certification provider, who provides massively rewarding pathways with a plenty of work opportunities to you and around the world. Our VMware 2V0-31.24 study materials have the high pass rate as 98% to 100%, hope you can use it fully and pass the exam smoothly. We have organized a group of professionals to revise CompTIA SY0-701 preparation materials, according to the examination status and trend changes in the industry, tailor-made for the candidates. So many exam candidates feel privileged to have our SAP C-THR89-2405 practice braindumps. Hitachi HQT-4420 - So just come and have a try!
Updated: May 28, 2022