70-464 Exam
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Q41. You execute the following code. After populating the Employees table with 10,000 rows, you execute the following query:
You need to reduce the amount of time it takes to execute the query.
What should you do?
A. Partition the table and use the JobTitle column for the partition scheme.
B. Change SUBSTRING(JobTitle,l,l) = 'C to JobTitle LIKE 'c%’
C. Change SUBSTRING (JobTitle, 1,1] = 'c' to LEFT(JobTitle ,1) = 'c'.
D. Replace IX_Employees with a clustered index.
Answer: B
Q42. Topic 8)
You are planning two stored procedures named SProc1 and SProc2.
You identify the following requirements:
. SProc1 must return a table.
. SProc2 must return a scalar value. You need to identify which option must be implemented for each stored procedure to return the desired data.
Which options should you identify?
To answer, drag the appropriate option to the correct requirement in the answer area. (Answer choices may be used once, more than once, or not at all.)
Answer:
Q43. You use SQL Server 2014. The physical server is a dedicated database server that has 120GB of RAM available. There is approximately 50GB of storage space available on a
slow local disk.
You create a new stored procedure. You decide you need to temporarily hold approximately 300,000 rows from two tables, from which you will compute two complex business scores.
The stored procedure will use temporary storage defined as follows:
The code will make several passes through the data, applying complex calculations before writing the data to a permanent disk-based table in the same database from which it reads the data.
For this stored procedure, you need to deal with temporary data in the most efficient way to minimize physical disk pressure.
What should you do? More than one answer choice may achieve the goal. Select the BEST answer.
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Explanation: * You must specify a value for the BUCKET_COUNT parameter when you create the memory-optimized table. In most cases the bucket count should be between 1 and 2 times the number of distinct values in the index key. If the index key contains a lot of duplicate values, on average there are more than 10 rows for each index key value, use a nonclustered index instead You may not always be able to predict how many values a particular index key may have or will have. Performance should be acceptable if the BUCKET_COUNT value is within 5 times of the actual number of key values.
Q44. You have a database named DB1.
You plan to configure change data capture on the existing tables in DB1.
The database file settings for the DB1 are shown in the exhibit. (Click the Exhibit button.)
You need to minimize disk contention caused by change data capture.
What should you do?
More than one answer choice may achieve the goal. Select the BEST answer.
A. Increase the autogrowth value of the database file.
B. Set the database recovery model to simple.
C. Increase the autogrowth value of the log file.
D. Configure change data capture to use to a secondary filegroup.
Answer: D
Q45. You have an index for a table in a SQL Azure database. The database is used for Online Transaction Processing (OLTP).
You discover that many page splits occur when records are inserted or updated in the table.
You need to minimize the number of page splits.
What should you set from the index options?
A. FILLFACTOR = 0
B. STATISTICS_NORECOMPUTE = OFF
C. STATISTICS_NORECOMPUTE = ON
D. FILLFACTOR = 80
Answer: D
Explanation:
http://msdn.microsoft.com/en-us/library/ms188783.aspx http://msdn.microsoft.com/en-us/library/ms177459.aspx
Q46. You have a SQL Server 2012 instance that hosts a single-user database.
The database does not contain user-created stored procedures or user-created functions.
You need to minimize the amount of memory used for query plan caching.
Which advanced server option should you modify?
A. Scan for Startup Procs
B. Enable Contained Databases
C. Optimize for Ad hoc Workloads
D. Allow Triggers to Fire Others
Answer: C
Q47. You execute the following code:
You create a nonclustered index named IX_CustomerName on the CustomerName column.
You execute the following query:
You need to reduce the amount of time it takes to execute the query.
What should you do?
A. Partition the table and use the CustomerName column for the partition scheme.
B. Replace IX_CustomerName with a clustered index.
C. Replace LEFT(CustomerName ,1) = 'a' with CustomerName LIKE 'a%'.
D. Replace LEFT(CustomerName ,1) = 'a' with SUBSTRING(CustomerName ,1,1) - 'a'.
Answer: C
Explanation:
http://msdn.microsoft.com/en-us/library/ms179859.aspx http://msdn.microsoft.com/en-us/library/ms187748.aspx
Q48. Which data type should you use for CustomerID?
A. varchar(11)
B. bigint
C. nvarchar(11)
D. char(11)
Answer: D
Explanation:
Invoices.xml All customer IDs are 11 digits. The first three digits of a customer ID represent the customer's country. The remaining eight digits are the customer's account number. int: -2^31 (-2,147,483,648) to 2^31-1 (2,147,483,647) (just 10 digits max) bigint: -2^63 (-9,223,372,036,854,775,808) to 2^63-1 (9,223,372,036,854,775,807) http://msdn.microsoft.com/en-us/library/ms176089.aspx http://msdn.microsoft.com/en-us/library/ms187745.aspx
Q49. Topic 8)
You have a SQL Server 2012 database named database1.
Users report that queries that usually take less than one second to execute, take more than
30 seconds to execute.
You need to view the server resource consumption when the queries are executed.
What should you do?
To answer, move the appropriate actions from the list of actions to the answer area and
arrange them in the correct order.
Answer:
Q50. Topic 8)
You plan to deploy two stored procedures name USP_1 and USP_2 that read data from a database.
Your company identifies the following requirements for each stored procedure:
. USP_1 cannot allow dirty reads.
. USP_2 must place range locks on the data to ensure read consistency.
You need to identify which isolation level you must set for each stored procedure. The solution must minimize the number of locks.
Which isolation level should you identify?
To answer, drag the appropriate isolation level to the correct stored procedure in the answer area. (Answer choices may be used once, more than once, or not at all.)
Answer: