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1Z0-083 Exam Torrent - Oracle Database Administration II Actual Test & 1Z0-083 Prep Torrent

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Oracle Database Administration II Sample Questions (Q126-Q131):

NEW QUESTION # 126
Which two are true about the character sets used in an Oracle database? (Choose two.)

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

Answer: C,E

Explanation:
A - Single-byte character sets result in better performance than multibyte character sets, and they also are the most efficient in terms of space requirements.
Ref: https://docs.oracle.com/en/database/oracle/oracle-database/19/nlspg/choosing-character- set.html#GUID-BF26E01D-AB92-48FC-855A-69A5B3AF9A92 B - Unicode is a universal encoded character set that enables information from any language to be stored using a single character set.
Ref:
https://docs.oracle.com/cd/B19306_01/server.102/b14225/ch6unicode.htm#:~:text=Unicode%20i s%20a%20universal%20encoded%20character%20set%20that,been%20adopted%20by%20man y%20software%20and%20hardware%20vendors.

NEW QUESTION # 127
Which two are true about instance recovery?

A. It is performed by the Recovery Writer (rvwr) background process.
B. It is not possible if an archived log is missing.
C. It is performed automatically after the database is opened; however, blocks requiring recovery are not available until they are recovered.
D. Setting fast_start_mttr_target to a higher value reduces instance recovery time by causing the log writer to write more frequently, thereby reducing the number of I/Os needed during instance recovery.
E. Setting fast_start_mttr_target to a lower value reduces instance recovery time by causing dirty buffers to be written to disk more frequently, thereby reducing the number of I/Os needed during instance recovery.
F. It is performed automatically while the database remains in mount state. Then the database is opened.

Answer: A,B

NEW QUESTION # 128
Examine this output:

Which two are true?

A. PDB1 is always limited to 40% of the available system resources regardless of demand.
B. PDB3 is guaranteed to receive at least 20% of the available system resources if there is enough demand.
C. Any PDB not specified in the plan will be able to use a maximum of 16.5% of the available system resources.
D. PDB3 can use all available parallel execution processes at times.
E. PDB2 is guaranteed at least 25% of the available parallel execution processes if there is enough demand.
F. Any PDB not specified in the plan will be unable to execute statements in parallel.

Answer: F

NEW QUESTION # 129
Which three are true about thresholds, metrics, and server-generated alerts? (Choose three.)

A. Metrics are statistical counts for a specific unit.
B. STATISTICS_LEVEL must be set to ALL to generate alerts.
C. A space usage management alert is automatically cleared after the underlying problem is resolved.
D. Cleared stateful alerts are displayed by querying DBA_ALERT_HISTORY.
E. All metrics are instance related.
F. They are generated by SMON when a tablespace is 97% full.

Answer: A,C,D

NEW QUESTION # 130
Which three are true about performing an Oracle Database install on Linux?

A. The Oracle PreinstallationRPMcan be used to configure the Oracle database installation owner, the Oracle Inventory group, and an Oracle administrative privileges group.
B. The Oracle database administrator must be granted access to the root operating system account to run root privileged scripts.
C. It can be done after installing Grid Infrastructure for a Standalone Server.
D. It can be done before installing Grid Infrastructure for a Standalone Server.
E. It allows you to select the languages supported by the Oracle database server.
F. The runfixup.sh script can install missing RPMs.
G. The Oracle Preinstallation RPM must be used to configure the Oracle database installation owner, the Oracle Inventory group, and an Oracle administrative privileges group.

Answer: D,E,G

NEW QUESTION # 131
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