1z0-040
多选题Which two statements regarding the FLASHBACK_TRANSACTION_QUERY view are correct?（）AYou can find information about only active transactions from the viewBYou can find information about read only transactions from the viewCYou require the SELECT ANY TRAN
题目
You can find information about only active transactions from the view
You can find information about read only transactions from the view
You require the SELECT ANY TRANSACTION system privilege to access the view
You can find information about both active and committed transactions from the view
You require the SELECT ON FLASHBACK_TRANSACTION_QUERY object privilege to access the view
相似问题和答案
第1题：
A. Only routers can split boundaries (horizons) between concentric networks.
B. Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries.
C. Networks can only remain fully converged if all information is sent out all active interfaces.
D. Information about a route should not be sent back in the direction from which the original update came.
E. Distance vector protocols need fall back routers that are responsible for momentary loops.
第2题：
By default, which two statements are true about export routing policies?（）
- A、Export policies can evaluate only active routes
- B、Export policies can evaluate all routes
- C、Export policies can be applied to the forwarding table
- D、Export policies can be applied directly to interfaces
正确答案:A,C
第3题：
A. Firewall filters are stateless.
B. Firewall filters are used to control routing information that is exchanged between devices.
C. Firewall filters are used to control traffic passing through the device.
D. Firewall filters can only be applied to traffic entering the device.
第4题：
Which two statements are true regarding subqueries? （）
- A、A subquery can retrieve zero or more rows
- B、Only two subqueries can be placed atone level
- C、A subquery can be used only in SQL query statements
- D、A subquery can appear on either side of a comparison operator
- E、There is no limit on the number of subquery levels in the WHERE clause of a SELECT statement
正确答案:A,D
第5题：
By default, which two statements are true about export routing polices?（）
- A、Export polices can evaluate only active routes
- B、Export polices can evaluate all routes
- C、Export polices can be applied to the forwarding table
- D、Export polices can be applied to interfaces
正确答案:A,C
第6题：
A. Only router can split boundaries(horizons)between concentric networks.
B. All distance vector protocols require fall routes that may cause momentary loops as the topology changes.
C. Networks can only remain fully converged if all information about routes is sent out all active interfaces.
D. Information about a route should not be sent back in the direction from which the original update came.
E. Each AS must keep routing tables converged to prevent dead routes from being advertised across the AS boundary.
第7题：
Which two statements are true about using the isUserInRole method to implement security in a Java EEapplication？（）
- A、It can be invoked only from the doGet or doPost methods.
- B、It can be used independently of the getRemoteUser method.
- C、Can return "true" even when its argument is NOT defined as a valid role name in the deployment descriptor.
- D、Using the isUserInRole method overrides any declarative authentication related to the method in which it is invoked.
正确答案:B,C
第8题：
A. Export polices can evaluate only active routes
B. Export polices can evaluate all routes
C. Export polices can be applied to the forwarding table
D. Export polices can be applied to interfaces
第9题：
You executed the following query： SELECT operation， undo_sql， table_name FROM flashback_transaction_query； Which statement is correct regarding the query output？（）
- A、 It would return information regarding only the last committed transaction.
- B、 It would return only the active transactions in all the undo segments in the database.
- C、 It would return only the committed transactions in all the undo segments in the database.
- D、 It would return both active and committed transactions in all the undo segments in the database.
- E、 It would return information regarding the transactions that began and were committed in the last 30 minutes.
正确答案:D
第10题：
Which two statements about views are true?（）
- A、A view can be created as read only.
- B、A view can be created as a join on two or more tables.
- C、A view cannot have an ORDER BY clause in the SELECT statement.
- D、A view cannot be created with a GROUP BY clause in the SELECT statement.
- E、A view must have aliases defined for the column names in the SELECT statement.
正确答案:A,B