1Z0-062過去問,1Z0-062テキスト,1Z0-062出題範囲,1Z0-062初心者

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Share some Oracle Database 1Z0-062 exam questions and answers below.
Which task would you recommend before using the Database Upgrade Assistant (DBUA) to upgrade a single-instance Oracle 11g R2 database to Oracle Database 12c?

A. shutting down the database instance that is being upgraded

B. executing the catctl.pl script to run the upgrade processes in parallel

C. running the Pre-Upgrade Information Tool

D. copying the listener.ora file to the new ORACLE_HOME

Answer: C

The ORCL database is configured to support shared server mode. You want to ensure that a user connecting remotely to the database instance has a one-to-one ratio between client and server processes.

Which connection method guarantees that this requirement is met?

A. connecting by using an external naming method

B. connecting by using the easy connect method

C. creating a service in the database by using the dbms_service.create_service procedure and using this service for creating a local naming service

D. connecting by using the local naming method with the server = dedicated parameter set in the tnsnames.ora file for the net service

E. connecting by using a directory naming method

Answer: C,E

What happens if a maintenance window closes before a job that collects optimizer statistics completes?

A. The job is terminated and the gathered statistics are not saved.

B. The job is terminated but the gathered statistics are not published.

C. The job continues to run until all statistics are gathered.

D. The job is terminated and statistics for the remaining objects are collected the next time the maintenance window opens.

Answer: D

You are the DBA supporting an Oracle 11g Release 2 database and wish to move a table containing several DATE, CHAR, VARCHAR2, and NUMBER data types, and the table¡¯s indexes, to another tablespace.

The table does not have a primary key and is used by an OLTP application.

Which technique will move the table and indexes while maintaining the highest level of availability to the application?

A. Oracle Data Pump.

B. An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD to move the indexes.

C. An ALTER TABLEMOVE to move the table and ALTER INDEX REBUILD ONLINE to move the indexes.

D. Online Table Redefinition.

E. Edition-Based Table Redefinition.

Answer: D

Which statement is true regarding the startup of a database instance?

A. The instance does not start up normally and requires manual media recovery after a shutdown using the abort option.

B. Uncommitted transactions are rolled back during the startup of the database instance after a shutdown using the immediate option.

C. There is no difference in the underlying mechanics of the startup whether the database is shut down by using the immediate option or the abort option.

D. Media recovery is required when the database is shut down by using either the immediate option or the abort option.

E. Instance recovery is not required if the database instance was shut down by using SHUTDOWN IMMEDIATE.

Answer: E

Which two statements are true about the logical storage structure of an Oracle database?

A. An extent contains data blocks that are always physically contiguous on disk.

B. An extent can span multiple segments.

C. Each data block always corresponds to one operating system block.

D. It is possible to have tablespaces of different block sizes.

E. A data block is the smallest unitof I/O in data files.

Answer: B,D

Which three statements are true about a job chain?

A. It can contain a nested chain of jobs.

B. It can be used to implement dependency-based scheduling.

C. It cannot invoke the same program or nested chain in multiple steps in the chain.

D. It cannot have more than one dependency.

E. It can be executed using event-based or time-based schedules.

Answer: A,B,E

Examine the structure of the sales table, which is stored in a locally managed tablespace with Automatic Segment Space Management (ASSM) enabled.

You want to perform online segment shrink to reclaim fragmented free space below the high water mark.

What should you ensure before the start of the operation?

A. Row movement is enabled.

B. Referential integrity constraints for the table are disabled.

C. No queries are running on this table.

D. Extra disk space equivalent to the size of the segment is available in the tablespace.

E. No pending transaction exists on the table.

Answer: D

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