New Oracle 1z0-064 Exam With Updated Exam Questions – [Nov-2017 Dumps]

1z0-064 Braindumps 1z0-064 dumps 1z0-064 Exam 1z0-064 Exam Dumps 1z0-064 exam-questions 1z0-064 Practice Test 1z0-064 Questions Oracle

Oracle Database 12c: Performance Management and Tuning 1z0-064 exam dumps a milestone of IT industry takes you to the higher standards in career. o if you want to earn the Oracle Database 12c: Performance Management and Tuning 1z0-064 exam is easily get hold of 1z0-064 practice test software. It is designed by the subject matter experts to facilitate the candidates in order to cover the entire 1z0-064 Database Administrations exam in best manner with multiple learning modes. The 1z0-064 practice test software is designed in such a way that it authenticates your learning while learning

Version: 9.0
Question: 1

To investigate the slow response time of queries on the TRANS table, you gathered the table statistics and
executed the query:
The table is stored in a tablespace that has Automatic Segment Space Management (ASSM) enabled. The
tablespace is created with a standard block size of 8192 bytes.
Which three can be reasons for the slow response time of the queries? (Choose three.)

A. Row size is too large to fit into a single block during insert operations.
B. Row moves from one data block to another data block because the row grows too large to fit in the original
block.
C. The table is subject to frequent insert, update, and delete DML activity leading to sparsely populated
blocks.
D. The value of PCTUSED is set to a value lower than the default, causing row changing.
E. The value of PCTFREE is set to a value lower than the default, causing row chaining.

Answer: A,B,C

Question: 2

In the CUSTOMERS table, the values in the CUST_STATE column are dependent on the values in the
COUNTRY_ID column. You want to make the optimizer aware of this dependency when these columns are
used together in WHERE clause predicates that contain equalities or in-lists.
Which two methods achieve this? (Choose two.)

A. gathering statistics on the CUSTOMERS table and its dependent objects, and then locking the statistics
B. using SQL plan directives to generate an optimal plan
C. setting the dynamic statistics level to 4 and setting the OPTIMIZER_USE_PENDING_STATISTICS
initialization parameter to true
D. creating column group statistics, regathering statistics, and ensuring that histograms exist on both these
columns

Answer: A,D

Question: 3

New Updated 1z0-064 Exam Questions 1z0-064 PDF dumps 1z0-064 practice exam dumps: https://www.dumpsschool.com/1z0-064-exam-dumps.html(84 Questions)

In your database, the measured 99th percentile value is used as the maximum value. You set a warning threshold level of 110% of maximum trigger as an alert.
What is the outcome? (Choose the best answer.)

A. It generates an error because the warning threshold cannot exceed 100%.
B. It generates an error because the percentage of maximum threshold cannot be set with a significance-level threshold value.
C. It generates an alert when an observed metric is 99% of the 99th percentile value as measured over the moving window baseline.
D. It generates an alert when an observed metric is 110% of the 99th percentile value as measured over the moving window baseline.
E. It generates an alert when 1 in 100 observations for an observed metric exceeds the 99th percentile value as measured over the fixed baseline.

Answer: A

Question: 4

You want to capture AWR data to monitor performance variation every Monday between 9:00 AM and 12:00 PM for three months and automatically remove the older AWR data every fortnight.
How would you achieve this? (Choose the best answer.)

A. Create AWR baselines.
B. Create SQL plan baselines.
C. Create repeating baseline templates.
D. Create database services and make sure that user connections use them to connect to the database instance.
E. Create a single baseline template.

Answer: D

Question: 5

Which two actions can reduce library cache latch contention for an OLTP application that repeatedly executes queries containing a mix of literals and bind variables? (Choose two.)

A. setting the OPEN_CURSORS parameter to hold a sufficient number of concurrently open cursors
B. coding the application such that a frequently executed statement is parsed only once and executed repeatedly as required
C. setting the CURSOR_SHARING parameter to EXACT
D. avoiding the granting of privileges on objects associated with cursors during peak load
E. enabling Automatic Memory Management and allocating at least 50% of the available memory for SHARED_POOL_SIZE
F. configuring shared server connections

Answer: B, E

Reference: http://docs.oracle.com/cd/B28359_01/server.111/b28274/memory.htm
Question: 6

You are administering a database that supports multiple applications, which make dedicated connections to the database instance by using different services.
You execute the command to enable tracing of the ORCL1 service:

Which two statements are true? (Choose two.)

A. A single trace file is generated for all sessions mapped to the ORCL1 service.
B. SQL trace is enabled for all modules and actions for sessions mapped to the ORCL1 service.
C. An SQL trace file is generated for each session that maps to the ORCL1 service.
D. An SQL trace file is generated for each of the modules using the ORCL1 service.
E. SQL trace is not enabled for the service because a module name is not specified.

Answer: A, C