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Exhibit， Viewing the Exhibit and examine the Flashback Datab

题目
单选题
Exhibit， Viewing the Exhibit and examine the Flashback Database architecture. Identify the missing component （shown with a "？`"= in the Flashback Database architecture.（）
A

 DBWn

B

 RVWR

C

 ARCH

D

 RECO

E

 TRWR

参考答案和解析
正确答案： E
解析： 暂无解析
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相似问题和答案

第1题：

View the Exhibit to examine the Automatic SQL Tuning result details.Which action would you suggest for the selected SQL statement in the Exhibit?()

A. Accept the recommended SQL profile.

B.Collect statistics for the related objects.

C. Run the Access Advisor for the SQL statement.

D. Run the Segment Advisor for recommendations.


参考答案：C

第2题：

View the Exhibit exhibit1 to examine the series of SQL commands. View the Exhibit exhibit2 to examine the plans available in the SQL plan baseline. The baseline in the first row of the Exhibit is created when OPTIMIZER_MODE was set to FIRST_ROWS.Which statement is true if the SQL query in exhibit1 is executed again when the valueof OPTIMIZER_MODE is set to FIRST_ROWS?（）

A. The optimizer uses a new plan because none of the plans in the exhibit2 are fixed plans.

B. The optimizer uses the plan in the second row of the exhibit2 because it is an accepted plan.

C. The optimizer uses the plan in the first row of the exhibit2 because it is the latest generated plan.

D. The optimizer uses the plan in the first row of the exhibit2 because OPTIMIZER_MODE was set to FIRST_ROW during its creation.


参考答案：B

第3题：

View the Exhibit and examine the output.You execute the following RMAN command to perform the backup operation:What is the multiplexing level in the preceding backup process()

A. 4

B. 8

C. 7

D. 0


参考答案：A

第4题：

Click the Exhibit button and examine the data from the ORDERS and CUSTOMERS tables.Evaluate the SQL statement:SELECT *FROM ordersWHERE cust_id = (SELECT cust_idFROM customersWHERE cust_name = ‘Smith‘);What is the result when the query is executed?（）

A.A

B.B

C.C

D.D

E.E


参考答案：A

第5题：

Examine the following commands and their output:View the exhibit and examine the Flashback Version Query that was executed after the preceding commands.What could be the possible cause for the query not displaying any row?（）

A. Flashback logging is not enabled for the database.

B. The changes made to the table are not committed.

C. Supplemental logging is not enabled for the database.

D. The database is not configured in ARCHIVELOG mode.


参考答案：B

第6题：

Examine the exhibit to view the parameters set in your parameter file. (Click the Exhibit(s) button.)You restart the instance.To what value will the MEMORY_MAX_TARGET parameter be set by default?()

A.120M

B.320M

C.480M

D.600M


参考答案：D

第7题：

View the Exhibit to examine the parameter values.You are planning to set the value for the MEMORY_TARGET parameter of your database instance.What value would you recommend?()

A. 90 MB

B. 272 MB

C. 362 MB

D. 1,440 MB


参考答案：C

第8题：

Examine the following commands and their output:SQL> SELECT ename, sal FROM emp WHERE ename=‘JAMES‘; ENAME SAL JAMES 1050QL> UPDATE emp SET sal=sal+sal*1.2 WHERE ename=‘JAMES‘;1 row updated.SQL> SELECT ename, sal FROM emp WHERE ename=‘JAMES‘; ENAME SAL JAMES 2310View the exhibit and examine the Flashback Version Query that was executed after the preceding commands.What could be the possible cause for the query not displaying any row?（）

A. Flashback logging is not enabled for the database.

B. The changes made to the table are not committed.

C. Supplemental logging is not enabled for the database.

D. The database is not configured in ARCHIVELOG mode.


参考答案：B

第9题：

Click the Exhibit button.In the exhibit, what is the priority for Router B in VRRP group 100?()

A.1

B.100

C.110

D.255


参考答案：B

第10题：

Click the Exhibit button. Which type of protection is shown in the exhibit?()

A.1+0

B.1+1

C.1：1

D.1：N


参考答案：B

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