1z0-083 Practice Test

1z0-083 Practice Test practice questions, page 3 of 8, with answer review and explanations.

Question 11

Which two are true about the character sets used in an Oracle database? (Choose two.)

  1. Single-byte character sets provide better performance than multibyte character sets.
  2. Unicode enables information from any language to be stored using a single character set.
  3. Unicode is the only supported character set for Oracle databases created using Database Configuration Assistant (DBCA).
  4. Single-byte character sets always use 7-bit encoding schemes.
  5. Multibyte character sets allow more efficient space utilization than single byte character sets.
  6. Single-byte character sets always use 8-bit encoding schemes.

Question 12

Which three are true about monitoring waits for sessions and services? (Choose three.)

  1. V$SESSION_EVENT displays all waits for all past and existing sessions if the wait has occurred at least once for a session.
  2. V$SERVICE_EVENT displays all waits for all services if the wait has occurred at least once for a service.
  3. V$SESSION_WAIT_CLASS displays waits broken down by wait class only for waiting sessions.
  4. V$SESSION_WAIT and V$SESSION both contain details of the event on which a non-waiting session last waited.
  5. V$SESSION_EVENT displays all waits for all past sessions if the wait has occurred at least once for a session.
  6. V$SESSION_WAIT and V$SESSION both contain details of the event on which a session is currently waiting.

Question 13

You must transport the UNIVERSITY tablespace from one database to another. The UNIVERSITY tablespace is currently open read/write. The source and destination platforms have different endian formats. Examine this list of actions: 1. Make the UNIVERSITY tablespace read-only on the source system. 2. Export the UNIVERSITY tablespace metadata using EXPDP. 3. Convert the UNIVERSITY tablespace data files to the destination platform format using RMAN on the source system. 4. Copy the UNIVERSITY tablespace data files to the destination system. 5. Copy the Data Pump dump set to the destination system. 6. Convert the UNIVERSITY tablespace data files to the destination platform format using RMAN on the destination system. 7. Import the UNIVERSITY tablespace metadata using IMPDP. 8. Make the UNIVERSITY tablespace read/write on the destination system. Which is the minimum number of actions required, in the correct order, to transport the UNIVERSITY tablespace?

  1. 1, 2, 4, 5, 7, 8
  2. 1, 2, 4, 6, 7, 8
  3. 1, 2, 3, 4, 5, 7, 8
  4. 1, 2, 3, 4, 5, 6, 7, 8
  5. 2, 4, 5, 6, 7

Question 14

Which two are true about OS groups and users for Oracle Grid Infrastructure and the Oracle Relational Database Management System (RDBMS)? (Choose two.)

  1. By default, members of the OSASM group can access Automatic Storage Management and RDBMS instances.
  2. The primary group for the Oracle Grid Infrastructure and Oracle Database owners must be the Oracle Inventory group.
  3. The Oracle Grid Infrastructure installation must be owned by the grid user.
  4. The Oracle Grid Infrastructure owner owns Oracle Restart and Oracle Automatic Storage Management binaries.
  5. The Oracle Grid Infrastructure owner must have OSOPER, OSBACKUPDBA, and OSKMDBA as secondary groups.
  6. The same OSDBA group must be used for Automatic Storage Management and the Oracle Database.

Question 15

Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)

  1. Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.
  2. A connection to an auxiliary instance is always required.
  3. A subset of the target database can be duplicated.
  4. A new DBID is always created for the duplicated database.
  5. A connection to the recovery catalog instance is always required.
  6. A backup of the target database is always required.
  7. Duplication can be done by having the target database instance push copies to the auxiliary database instance.
  8. A connection to the target database instance is always required.