参考書 1Z0-033 Oracle 資格認定

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1Z0-033 Oracle9i Database: Performance Tuning 日本国内における最も信頼できるIT試験専門家として、最新の品質の高いIT試験の学習資料を提供し、お客様のために試験に順調に合格することを助けます.最高品質問題集/試験問題集100パーセント品質保証.問題集は弊社の数名のIT専門家より心をこめて編集して整理されたもので、正確率が99%以上に達します.

参考書 1Z0-033 Oracle 資格認定

QUESTION 1
In your test database, you want to automatically collect database statistics at regular intervals. You execute the spauto.sql script to automate this task. What must you ensure before executing this script?

A. The AQ_TM_PROCESSES parameter is set to a value higher than one.
B. The THREAD parameter is set to a nonzero value.
C. The OPTIMIZER_MODE parameter is set to CHOOSE.
D. The JOB_QUEUE_PROCESSES parameter is set to a nonzero value.
E. The LOCK_SGA parameter is set to TRUE.

Answer: D

QUESTION 2
You receive complaints from database users about performance degradation. On investigation, you find that this is due to unnecessary sort operations in the database. Which are the two operations that would reduce sorting? (Choose two.)

A. using UNION instead of UNION ALL, wherever possible
B. using sort-merge join instead of the nested-loop join
C. using ANALYZE command for large objects with ESTIMATE clause instead of COMPUTE
D. creating indexes on the columns that are used in equijoins

Answer: CD

QUESTION 3
While doing a routine performance check of your test database, you find that a large number of statements are getting invalidated in the library cache, thereby causing the statements to be reparsed. What could be the reason for the invalidations?

A. Statistics have not been collected on the referenced columns.
B. There is not enough free space in the Shared Pool.
C. The structures of dependent objects have been modified.
D. Stored outlines are being used.
E. The Shared Pool Reserved Space is not configured.

Answer: C

QUESTION 4
Which statement could require a sort?

A. SELECT DISTINCT dept_id
FROM emp:
B. UPDATE emp SET salary=salary*1.1
WHERE id=7722;
C. SELECT emp_id, name
FROM emp
WHERE emp-id=7722;
D. SELECT emp_id, name
FROM emp
WHERE emp_id BETWEEN7722and7100;

Answer: A

参考書 1Z0-033 Oracle 資格認定

参考書 1Z0-033 Oracle 資格認定

日本語版の全真模擬試験問題集, IT認定資格 IT試験問題集,IT認証,日語版試験問題集,問題と解答, テスト, 試験の用意をする,備考, 最新の問題集 資格難易度, 受験記対策 練習,練習資料,参考書,日本語版問題集,日本語日本語版練習資料,資格認定，資格， it training, exam24.jp ,it 問題と解答 資格難易度, 受験記対策 日本語版の資格試験問題集

1Z0-033 Oracle9i Database: Performance Tuning 日本国内における最も信頼できるIT試験専門家として、最新の品質の高いIT試験の学習資料を提供し、お客様のために試験に順調に合格することを助けます.最高品質問題集/試験問題集100パーセント品質保証.問題集は弊社の数名のIT専門家より心をこめて編集して整理されたもので、正確率が99%以上に達します.

参考書 1Z0-033 Oracle 資格認定

QUESTION 1
In your test database, you want to automatically collect database statistics at regular intervals. You execute the spauto.sql script to automate this task. What must you ensure before executing this script?

A. The AQ_TM_PROCESSES parameter is set to a value higher than one.
B. The THREAD parameter is set to a nonzero value.
C. The OPTIMIZER_MODE parameter is set to CHOOSE.
D. The JOB_QUEUE_PROCESSES parameter is set to a nonzero value.
E. The LOCK_SGA parameter is set to TRUE.

Answer: D

QUESTION 2
You receive complaints from database users about performance degradation. On investigation, you find that this is due to unnecessary sort operations in the database. Which are the two operations that would reduce sorting? (Choose two.)

A. using UNION instead of UNION ALL, wherever possible
B. using sort-merge join instead of the nested-loop join
C. using ANALYZE command for large objects with ESTIMATE clause instead of COMPUTE
D. creating indexes on the columns that are used in equijoins

Answer: CD

QUESTION 3
While doing a routine performance check of your test database, you find that a large number of statements are getting invalidated in the library cache, thereby causing the statements to be reparsed. What could be the reason for the invalidations?

A. Statistics have not been collected on the referenced columns.
B. There is not enough free space in the Shared Pool.
C. The structures of dependent objects have been modified.
D. Stored outlines are being used.
E. The Shared Pool Reserved Space is not configured.

Answer: C

QUESTION 4
Which statement could require a sort?

A. SELECT DISTINCT dept_id
FROM emp:
B. UPDATE emp SET salary=salary*1.1
WHERE id=7722;
C. SELECT emp_id, name
FROM emp
WHERE emp-id=7722;
D. SELECT emp_id, name
FROM emp
WHERE emp_id BETWEEN7722and7100;

Answer: A

参考書 1Z0-033 Oracle 資格認定