更新された2023年10月20日検証済み！合格できる1Z0-083試験一発合格保証付き
無料で使える1Z0-083サンプルには問題100%カバー率でリアル試験問題（更新された285問あります)
Oracle 1Z0-083の認定試験は、データベース管理の専門知識を証明したいITプロフェッショナルにとって、チャレンジングでやりがいのある試験です。データベース管理のキャリアを始めたばかりであっても、長年の経験を持っている場合でも、この試験に合格することで自分の分野における卓越性への取り組みを証明し、キャリアの展望を高めることができます。
Oracle 1Z0-083試験に備えるために、候補者はオンラインコース、書籍、模擬試験、実践的な経験など、さまざまな学習資料を活用することができます。Oracleはまた、試験のすべてのトピックを詳細にカバーする公式のトレーニングコースを提供しています。Oracle 1Z0-083試験に合格することは、データベース管理におけるスキルと知識を検証し、キャリアの展望を高め、Oracleデータベース管理者認定プロフェッショナル資格を取得するための素晴らしい方法です。
質問 # 116
Which two are true about monitoring waits for sessions and services?
- A. v$session_wait and v$session both contain details of the event on which a non-waiting session last waited.
- B. v$session_wait_class displays waits broken down by wait class only for waiting sessions.
- C. v$service_event displays wait counts for every wait event whether waited on or not, for each service.
- D. v$session_event displays all waits for all past and existing sessions if the wait has occurred at least once for a session.
- E. v$session_wait and v$session both contain details of the event on which a waiting session is currently waiting.
正解：C、D
質問 # 117
Choose three. Which three are true about using an RMAN Recovery Catalog with a pluggable database (PDB) target connection in Oracle Database 19c and later releases?
- A. The target PDB must be registered in a base catalog.
- B. The base catalog owner must give the Virtual Private Catalog access to metadata for one or more PDBs.
- C. The base catalog must be used by RMAN when performing point-in-time recovery for the PDB registered in the Virtual Private Catalog.
- D. The target PDB must be registered in a Virtual Private Catalog.
- E. The target PDB must be registered in both the base catalog and the Virtual Private Catalog.
- F. The base catalog must be enabled for Virtual Private Catalog use.
正解：B、C、F
質問 # 118
Which two are facets of performance planning that should always be considered or implemented for an Oracle Database environment? (Choose two.)
- A. the configuration of storage arrays
- B. defining foreign keys for all tables to speed up joins
- C. defining primary keys for all tables to speed up all queries
- D. the physical data model
- E. using check constraints to speed up updates
正解：A、C
質問 # 119
HR_ROOT is an application container with the HR_APP application installed. No application PDBs and no application seed have yet been created in HR_ROOT. An application PDB, PDB1, must be created so that the HR_APP application's common objects are accessible to it. Which two methods can be used?
- A. Create the PDB1 application PDB and install HR_APP in it.
- B. Create an application seed, and install HR_APP in it.
- C. Create an application seed, synchronize it with HR_ROOT, and then create the PDB1 application PDB.
- D. Create the PDB1 application PDB and synchronize it with PDB$SEED.
- E. Create the PDB1 application PDB and synchronize it with HR_ROOT.
正解：C、E
質問 # 120
Examine this command:
$ rhpctl move database -sourcehome Oracle_home_path -destinationhome Oracle_home_path For which two purposes can you use this command? (Choose two.)
- A. to switch back to the previous Oracle home as part of a rollback operation
- B. to switch an existing Oracle Database home to a newer release of Oracle software on the same server
- C. to switch to a patched Oracle Database home
- D. to switch the Oracle Database home when using a centralized Rapid Home Provisioning server
- E. to switch to a read-only Oracle home
正解：A、C
解説：
Explanation
You can use rhpctl move gihome command with the same syntax to switch from the current Oracle Grid Infrastructure home to a patched home. The rhpctl command enables you to switch from your current Oracle Grid Infrastructure or Oracle Database home to patched Oracle home so that you can provision the new Oracle home as gold image. You can also use the rhpctl command to switch back to the old Oracle home, if you want to roll back the operation.
質問 # 121
Which four are true about a Recovery Manager (RMAN) duplication without a TARGET connection? (Choose four.)
- A. The UNDO TABLESPACE clause is always required when no connection exists to the recovery catalog and the TARGET database is closed.
- B. The UNDO TABLESPACE clause is always required when no connection exists to the recovery catalog and the TARGET database is opened.
- C. The NOREDO clause must be used if the backups of the database being duplicated were taken when the database was in NOARCHIVELOG mode.
- D. RMAN SBT-based backups of the database to be duplicated can be used by the auxiliary instance.
- E. The NOREDO clause can be used if the backups of the database being duplicated were taken when the database was in ARCHIVELOG mode.
- F. RMAN "pushes" the backups of the database to be duplicated over the network to the auxiliary instance.
- G. RMAN disk-based backups of the database to be duplicated can be used by the auxiliary instance.
- H. The UNDO TABLESPACE clause is always required when no connection exists to the TARGET instance.
正解：C、D、E、G
質問 # 122
Examine this output: Which two are true? (Choose two.)
- A. Any PDB notspecified in the plan will be able to use a maximum of 16.5% of the available system resources.
- B. PDB1 is always limited to 40% of the available system resources regardless of demand.
- C. PDB3 can use all available parallel execution processes at times.
- D. Any PDB not specified in the plan will be unable to execute statements in parallel.
- E. PDB2 is guaranteed at least 25% of the available parallel execution processes if there is enough demand.
- F. PDB3 is guaranteed to receive at least 20% of the available system resources if there is enough demand.
正解：E
質問 # 123
Which three can be done using Oracle Database Configuration Assistant (DBCA) starting from Oracle Database 19c? (Choose three.)
- A. cloning a remote container database in silent mode
- B. relocating a remote container database in interactive mode
- C. cloning a remote container database in interactive mode
- D. relocating a remote pluggable database in silent mode
- E. relocating a remote pluggable database in interactive mode
- F. relocating a remote container database in silent mode
- G. cloning a remote pluggable database in silent mode
正解：A、D、E
解説：
Explanation/Reference: https://docs.oracle.com/en/database/oracle/oracle-database/19/clone-pdbs-using-dbca-silent- mode/index.html?
learningpath=true&appuser=nobody&appsession=170971049395&contentid=26693&activityname=Clone%
20PDBs%20using%20DBCA%20in%20Silent%20Mode&eventid=6352
質問 # 124
Which two are true about the Oracle database tuning methodology?
- A. The alert log should be used to find the database and instance areas most in need of tuning.
- B. SQL statements should always be tuned before tuning any file systems.
- C. Tuning activities should stop once agreed service levels for performance have been met.
- D. Tuning activities should stop once the user is satisfied with performance.
- E. The Oracle Database time model should be used to find the database and instance areas most in need of tuning.
- F. The database instance memory should always be tuned before tuning any file systems.
正解：B、E
質問 # 125
Choose two. You are managing this configuration: 1. CDB1 is a container database. 2. PDB1 and PDB2 are two pluggable databases in CDB1. 3. USER1.EMP is a table in PDB1 and USER2.DEPT is a table in PDB2 . CDB1 user SYS executes these commands after connecting successfully to PDB2: SQL> ALTER SESSION SET CONTAINER=pdb1; Session altered. SQL> INSERT INTO user1.emp VALUES (100, 'Alan' ,1) ; 1 row created. SQL> INSERT INTO user1.emp VALUES (101, 'Ben' ,1) ; 1 row created. SQL> ALTER SESSION SET CONTAINER=pdb2; Session altered. SQL> INSERT INTO user2.dept VALUES(1, 'IT'); Which two are true? Which two are true? (Choose two.)
- A. The inserts on USER1.EMP were rolled back when the session connected to PDB2
- B. The insert on USER2.DEPT is uncommitted.
- C. The insert on USER2.DEPT fails because of the active transaction in the parent container.
- D. The inserts on USER1.EMP remain uncommitted when the session connected to PDB2.
- E. The inserts on USER1.EMP were committed when the session connected to PDB2.
- F. The insert on USER2.DEPT is a recursive autonomous transaction by the child session and is committed.
- G. The inserts on USER1.EMP were committed when the session inserted a row into USER2. DEPT.
正解：C、D
質問 # 126
While backing up to an SBT channel, you determine that the read phase of your compressed Recovery Manager (RMAN) incremental level 0 backup is a bottleneck.
FORCE LOGGING is enabled for the database.
Which two could improve read performance? (Choose two.)
- A. Disable FORCE LOGGING for the database.
- B. Increase the level of RMAN multiplexing.
- C. Enable asynchronous disk I/O.
- D. Increase the size of the database buffer cache.
- E. Increase the size of tape I/O buffers.
正解：B、C
質問 # 127
Choose two. Which two are true about RMAN persistent configuration settings, administration, and their effects?
- A. A DBA must specify either a redundancy retention policy or a recovery window retention policy. B)A target database's persistent RMAN configuration settings are always synchronized automatically with the RMAN catalog.
- B. Backups older than the recovery window retention policy are always deleted automatically if the backup location has insufficient space.
- C. A target database's persistent RMAN configuration settings are always stored in the target's control file.
- D. Backups written to the fast recovery area (FRA) that are obsolete based on the redundancy retention policy can be deleted automatically to free space.
正解：A
質問 # 128
Which three are true about requirements for various FLASHBACK operations? (Choose three.)
- A. FLASHBACK version query requires that the RECYCLEBIN parameter be set to ON.
- B. FLASHBACK drop requires that the RECYCLEBIN parameter be set to ON.
- C. FLASHBACK version query requires undo to retrieve all versions of a row that existed between two points in time.
- D. FLASHBACK DATA ARCHIVE requires undo to store all versions of all rows of a table being tracked.
- E. FLASHBACK drop requires undo to retrieve all versions of a row that existed two points in time.
- F. FLASHBACK transaction query requires undo to retrieve all versions of a row that existed between two points in time.
正解：B、C、F
質問 # 129
Which three can be done using Oracle Database Configuration Assistant (DBCA) starting from Oracle Database 19c? (Choose three.)
- A. cloning a remote container database in silent mode
- B. relocating a remote container database in interactive mode
- C. cloning a remote container database in interactive mode
- D. cloning a remote pluggable database in silent mode
- E. relocating a remote pluggable database in silent mode
- F. relocating a remote container database in silent mode
- G. relocating a remote pluggable database in interactive mode
正解：A、D、E
質問 # 130
You issued this command: RMAN> BACKUP RECOVERY FILES; Which two are true? (Choose two.)
- A. All Oracle recovery files not in the current FRA that have not been backed up already, are backed up.
- B. All non-Oracle files in the current FRA that have not been backed up already, are backed up.
- C. These backups can be written to disk or SBT.
- D. All Oracle recovery files in the current FRA that have not been backed up already, are backed up. D)All Oracle recovery files in the current fast recovery area (FRA) are backed up.
正解：A、D
質問 # 131
choose one You want to create a test database as a replica of your production database with minimum intervention from a DBA.
Which method would you use?
- A. Use DBCA to create a template from the existing database to contain the database structure and then manually copy the data by using Oracle Data Pump.
- B. Use Database Configuration Assistant (DBCA) to create a template from the existing database to contain the database structure.
- C. Use DBCA to create a template from the existing database to contain the database structure with data files and then use the same template to create the database in the new location.
- D. Create the database by using the CREATE DATABASE . . . command and manually import data by using Data Pump.
正解：C
質問 # 132
Which three are true in Oracle 19c and later releases? (Choose three.)
- A. Unified Auditing can be configured to audit only events that are issued directly by an audited user.
- B. Unified Auditing can be configured to audit only events that are issued indirectly by an audited user.
- C. Schema Only accounts can be granted administrator privileges.
- D. Privilege Analysis is included in Oracle Enterprise Edition and no longer requires Database Vault.
- E. All the Oracle-supplied accounts are Schema Only accounts.
- F. If the password file location changes, then the new location is used automatically by the Oracle Server.
正解：C、D、E
解説：
Reference:
https://mandysandhu.com/2018/04/30/oracle-database-18c-schema-only-accounts/
質問 # 133
Choose three. You must migrate a non-CDB Oracle 11g Database to a CDB without first performing an upgrade to the non-CDB. User-defined objects are stored in several tablespaces in the non-CDB. Which three methods can you use?
- A. cloning the non-CDB as a PDB
- B. replication using GoldenGate
- C. Data Pump full transportable database
- D. Data Pump full database export and import
- E. Data Pump transportable tablespaces
- F. the DBMS_PDB package
正解：B、D、E
質問 # 134
Choose three. Which three are true about Audit policies in container databases (CDBs)?
- A. Fine-grained auditing policies defined in an application root must be manually synchronized by each application PDB contained in the application root.
- B. An application PDB cannot have a local audit policy.
- C. Application-common unified audit policies defined in an application root must be manually synchronized by each application PDB contained in the application root.
- D. A common unified audit policy can be created at the application root level.
- E. A common unified audit policy can be created at the CDB level.
- F. All audit records are written to the audit trail in CDB$ROOT .
正解：C、D、E
質問 # 135
Examine this configuration:
* CDB1 is a container database.
* PDB1 and PDB2 are pluggable databases in CDB1.
* PDB1 and PDB2 are OPEN in READ WRITE mode.
You execute these commands successfully:
Which two are true? (Choose two.)
- A. PDB1 is closed.
- B. CDB1 is shut down.
- C. CDB1 is in MOUNT state
- D. Uncommitted transactions in CDB1 and PDB1 have been rolled back.
- E. Uncommitted transactions in PDB1 have been rolled back.
正解：A、E
質問 # 136
Which three are located by using environment variables? (Choose three.)
- A. the location of Oracle Net Services configuration files
- B. the maximum number of database files that can be opened by a database instance
- C. the list of a disk group names to be mounted by an Oracle Automatic Storage Management (ASM) instance at startup
- D. the Optimal Flexible Architecture (OFA) compliant path to store Oracle software and configuration files.
- E. the temporary disk space used by Oracle Installer during installation
- F. default directories for temporary files used by temporary tablespaces
正解：A、D、E
質問 # 137
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