Exam 1z0-062 topic 1 question 137 discussion

A,E is correct: https://docs.oracle.com/database/121/SUTIL/GUID-EBC54840-22B7-486C-B1FD-CAFFB5FC2344.htm#SUTIL871 https://docs.oracle.com/database/121/SUTIL/GUID-0FD688BF-A25E-40D3-B835-E2CBF069F26E.htm#SUTIL945 D is not correct, there is no master table export, only master table content written to file. What with B?

A and E

Both expdp and impdp jobs are detachable and attachable. Regarding option B, it's not parallel execution server processes, to be exact "The value you specify for integer specifies the maximum number of processes of active execution operating on behalf of the import job. This execution set consists of a combination of worker processes and parallel I/O server processes."

Answer is AE. B is incorrect because parallelism on import process is not related to parallel execution server processes. Task is performed by database writer processes, ie: Worker 1 Status:   Process Name: DW00   State: EXECUTING   Object Schema: XTP_AC   Object Name: SYS_C0063284986   Object Type: SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT   Completed Objects: 1,120   Worker Parallelism: 1   Worker 2 Status:   Process Name: DW01   State: WORK WAITING   Worker 3 Status:   Process Name: DW02   State: WORK WAITING

A & E are correct. You can both attach and reattach for export and import jobs. D is incorrect because at the end of an export job, the content of the master table is written to a file. I believe B is incorrect as datapump does not use parallel execution server process for parallel imports by default. We have to specifically provide the parallel paramter during the operation. However, I am not too sure on this rationale. I believe we are all in agreement that C is incorrect for obvious reasons.

B & D are correct Ref: https://docs.oracle.com/database/121/SUTIL/GUID-6BDC1CC8-8596-402D-B016-602985B97AB6.htm#SUTIL808

import and export job are both attachable. So A and D is correct (tested 11.2.0.4). But may B be correct, too. Confused. If I see this question in exam, I mark AD.