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OCP-1Z0-053-V12.02-675题

2013-11-02 13:48 337 查看
675.Which two client requests are captured during database replay Capture? (Choose two)
A. Flashback queries
B. Shared server requests
C. Login and logoff activities of sessions
D. Direct path load of data from external files by using utilities such as SQL *loader
E. Data definition language (DDL) and data manipulation language (DML) operations
Answer: CE
答案解析:
参考:http://docs.oracle.com/cd/E11882_01/server.112/e41481/dbr_capture.htm#RATUG115
排除法,选CE

The following types of user sessions and client requests are not supported by Database Replay:

Direct path load of data from external files using utilities such as SQL*Loader

Non-PL/SQL based Advanced Queuing (AQ)

Flashback queries

Oracle Call Interface (OCI) based object navigations

Non SQL-based object access

Distributed transactions

Any distributed transactions that are captured will be replayed as local transactions.

XA transactions

XA transactions are not captured or replayed. All local transactions are captured.

J***A_XA
transactions

If the workload uses the
J***A_XA
package,
J***A_XA
function and procedure calls are captured as normal PL/SQL workload. To avoid problems during workload replay, consider dropping the
J***A_XA
package on the replay system
to enable the replay to complete successfully.

Database Resident Connection Pooling (DRCP)

Workloads using OUT binds

Multi-threaded Server (MTS) and shared server sessions with synchronization mode set to
OBJECT_ID


Migrated sessions

The workload is captured for migrated sessions. However, user logins or session migration operations are not captured. Without a valid user login or session migration, the replay may cause errors because the workload may be replayed by a wrong user.

Typically, Database Replay refrains from capturing these types of non-supported user sessions and client requests. Even when they are captured, Database Replay will not replay them. Therefore, it is usually not necessary to manually
filter out non-supported user sessions and client requests. In cases where they are captured and found to cause errors during replay, consider using workload capture filters to exclude them from the workload.
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