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oracle8l:new features for administrators : 1z0-020 Exam

Product Description

Exam Number/Code: 1z0-020

Exam Name: oracle8l:new features for administrators

“oracle8l:new features for administrators”, also known as 1z0-020 exam, is a Oracle certification. With the complete collection of questions and answers, Pass4sure has assembled to take you through 83 Q&As to your 1z0-020 Exam preparation. In the 1z0-020 exam resources, you will cover every field and category in Other Oracle Certification helping to ready you for your successful Oracle Certification.

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6. Over a six-month period, you have been regularly monitoring your four-instance RAC database, which is
running on the first 4 nodes of a 6-node cluster, by using ADDM and by monitoring well-known combinations of
wait event and statistics in AWR reports.
Two weeks ago, a newer version of your main application went live. Starting last week, you noticed a large
increase in CPU time (consumed by the three application services on your RAC database) due to increased
workload.
The OLTP and DSS services have not had a decrease in the percentage of time spent using CPU. However, for the
BATCH service the percentage of time spent using CPU has gone down and the wait-time percentage has
increased.
You want to recommend a tuning exercise to your team. Which two recommendations would you make first,
based on the symptoms described? (Choose two.)
A.Tune SQL from the BATCH service programs because they may benefit from SQL tuning.
B.The BATCH service programs may scale well and could benefit from adding new database instances on either
node 5 or 6, or on both.
C.Tune SQL for the OLTP and DSS service programs because they may benefit from SQL tuning.
D.The OLTP and DSS service programs may scale well and could benefit from adding new database instances on
either node 5 or 6, or on both.
E.The OLTP and DSS service programs may scale well and could benefit from adding new database instances on
one or both of nodes 5 and 6, and by adding more nodes the SQL for BATCH service programs would perform
better due to more CPU power.
Answer: AD

7. When do you get the first notification after you execute the following command on instance RDBA1?
exec DBMS_SERVER_ALERT.SET_THRESHOLD(-
METRICS_ID => dbms_server_alert.elapsed_time_per_call,
WARNING_OPERATOR => dbms_server_alert.operator_ge,
WARNING_VALUE => ‘500000′,
CRITICAL_OPERATOR => dbms_server_alert.operator_ge,
CRITICAL_VALUE => ‘750000′,
OBSERVATION_PERIOD => 15,
CONSECUTIVE_OCCURRENCES => 3,
INSTANCE_NAME => ‘RDBA1′,
OBJECT_TYPE => dbms_server_alert.object_type_service,
OBJECT_NAME => ‘ERP’);
A.when the average elapsed time per call for the ERP service over a 45-minute period exceeds 0.5 seconds
B.when the average elapsed time per call for the ERP service over a 45-minute period exceeds 0.75 seconds
C.when the average elapsed time per call for the ERP service over a 15-minute period exceeds 0.5 seconds three
consecutive times
D.when the average elapsed time per call for the ERP service over a 15-minute period exceeds 0.75 seconds three
consecutive times
Answer: C

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8. You have a two-node cluster (RDBD1, +ASM1 on ed-rac1and RDBD2, +ASM2 on node ed-rac2). Which two
utilities would you use to check the OCR integrity? (Choose two.)
A.crsctl
B.cluvfy
C.crs_stat
D.ocrcheck
Answer: BD

9. To install Oracle Database 10g RAC on a UNIX platform, which four directories will you identify for use?
(Choose four.)
A.NET_ADMIN directory
B.Oracle inventory directory
C.group services directory (GSD_HOME)
D.Oracle base directory (ORACLE_BASE)
E.CRS home directory (ORA_CRS_HOME)
F.Oracle home directory (ORACLE_HOME)
Answer: BDEF
10. Which two statements regarding Oracle Clusterware are correct? (Choose two.)
A.The Oracle Database 10g version of the srvConfig.loc file is the ocr.loc file.
B.The Oracle9i srvConfig.loc file still exists for backward compatibility in Oracle Database 10g.
C.The Oracle Database 10g CRS stack is compatible with Oracle 9i Group Services (GSD) processes.
D.The installation of Oracle Clusterware is not necessary if you have already installed vendor-specific clusterware.
Answer: AB

11. Your four-node RAC cluster is no longer coping with workloads for one of its databases at peak periods and
you decide to add another node to the cluster. The current configuration has two RAC databases, each with four
instances with only the second database using ASM as a clustered database file system. ASM is installed in a
separate home.
Which five steps must you take to add all the software components and processes to the new node before you run
DBCA to add database and ASM instances on the new cluster nodes. Do not be concerned with the correct
sequence for the steps. (Choose five.)
A.Run netca from the new node to add a listener to the new node.
B.Run addNode.sh in the ASM home/oui/bin directory from one of the existing nodes.
C.Run addNode.sh in the RDBMS home/oui/bin directory from one of the existing nodes.
D.Run racgons add_config from one of the existing nodes to add the ONS metadata to the OCR.
E.Run cluvfy stage -pre crsinst from one of the existing nodes to verify the cluster configuration.
F.Run addnode.sh in the Clusterware home/oui/bin directory from one of the existing nodes to define the new
node to all existing nodes.
G.Run addnode.sh in the Clusterware home/oui/bin directory from each of the existing nodes once to define the
new node to each existing node.
Answer: ABCDF
* pass4sure oracle 1z0-020 Questions and Answers : 83 Q&As
* Updated: October 30th , 2008
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