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Oracle 1Z1-082 (Oracle Database Administration I) certification exam is designed for individuals who wish to demonstrate their knowledge and skills in Oracle Database Administration. 1Z0-082 exam is the first step in becoming a certified Oracle Database Administrator (DBA). 1Z0-082 exam covers a wide range of topics, including database architecture, installation and configuration, backup and recovery, and performance tuning.
NEW QUESTION # 20
Which two statements are true about the PMON background process? (Choose two.)
- A. It records checkpoint information in the control file
- B. It registers database services with all local and remote listeners known to the database instance
- C. It kills sessions that exceed idle time
- D. It frees resources held by abnormally terminated processes
- E. It frees unused temporary segments
Answer: C,D
Explanation:
Reference:
* Performs process recovery when a user process fails - Cleans up the database buffer cache - Frees resources that are used by the user process * Monitors sessions for idle session timeout
NEW QUESTION # 21
Examine this SQL statement:
SELECT cust_id, cust_last_name "Last Name"
FROM customers
WHERE country_id = 10
UNION
SELECT cust_id CUST_NO, cust_last_name
FROM customers
WHERE country_id = 30
Identify three ORDER BY clauses, any one of which can complete the query successfully. (Choose three.)
- A. ORDER BY CUST_NO
- B. ORDER BY "Last Name"
- C. ORDER BY 2, 1
- D. ORDER BY 2, cust_id
- E. ORDER BY "CUST_NO"
Answer: A,C,D
NEW QUESTION # 22
Which three statements are true about time zones, date data types, and timestamp data types in an Oracle database? (Choose three.)
- A. The DBTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
- B. The SESSIONTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
- C. A TIMESTAMP WITH LOCAL TIMEZONE data type column is stored in the database using the time zone of the session that inserted the row
- D. A TIMESTAMP data type column contains information about year, month, and day
- E. The CURRENT_TIMESTAMP function returns data without time zone information
Answer: A,B,C
NEW QUESTION # 23
You want to use table compression suitable for OLTP that will:
1. Compress rows for all DML statements on that table
2. Minimize the overheads associated with compression
Which compression option is best suited for this?
- A. COLUMN STORE COMPRESS FOR ARCHIVE LOW
- B. COLUMN STORE COMPRESS FOR ARCHIVE HIGH
- C. ROW STORE COMPRESS BASIC
- D. COLUMN STORE COMPRESS FOR QUERY LOW
- E. ROW STORE COMPRESS ADVANCED
Answer: E
Explanation:
Explanation/Reference: https://www.oracle.com/technetwork/database/options/compression/advanced-compression-wp-
12c-1896128.pdf
NEW QUESTION # 24
Examine these commands:
Which two statements are true about the sqlldrexecution? (Choose two.)
- A. It generates a log that contains control file entries, which can be used with normal SQL*Loader operations
- B. It uses the database buffer cache to load data
- C. It generates a sql script that it uses to load data from EMP.DAT to EMP
- D. It overwrites data in EMP with data in EMP.DAT
- E. It appends data from EMP.DAT to EMP
Answer: B,C
NEW QUESTION # 25
You have been tasked to create a table for a banking application.
One of the columns must meet three requirements:
1. Be stored in a format supporting date arithmetic without using
conversion functions
2. Store a loan period of up to 10 years
3. Be used for calculating interest for the number of days the loan
remains unpaid
Which data type should you use?
- A. TIMESTAMP WITH TIMEZONE
- B. TIMESTAMP
- C. INTERVAL YEAR TO MONTH
- D. TIMESTAMP WITH LOCAL TIMEZONE
- E. INTERVAL DAY TO SECOND
Answer: E
NEW QUESTION # 26
Which three statements are true about dropping and unused columns in an Oracle database? (Choose three.)
- A. A column that is set to UNUSED still counts towards the limit of 1000 columns per table
- B. An UNUSED column's space is reclaimed automatically when the block containing that column is next queried.
- C. A primary key column referenced by another column as a foreign key can be dropped if using the CASCADE option.
- D. Partition key columns cannot be dropped.
- E. An UNUSED column's space is reclaimed automatically when the row containing that column is next queried.
- F. A DROP COLUMN command can be rolled back
Answer: A,B,C
NEW QUESTION # 27
You execute this command:
Sufficient storage is available in filesystem /u01.
Which two statements are true about the BIG_TBStablespace? (Choose two.)
- A. It will always have a 32K blocksize
- B. Additional data files may not be added
- C. It will be a dictionary-managed tablespace by default
- D. AUTOEXTEND is possible for the datafile
- E. It must be bigger than the largest SMALLFILE tablespace
Answer: D,E
NEW QUESTION # 28
The ORCL database has RESUMABLE__TIMEOUT = 7200 and DEFERRED_SEGMENT_CREATION = FALSE User U1 has a 1 MB quota in tablespace DATA.
U1 executes this command:
SQL> CREATE TABLE t1 AS
(SELECT object_name, sharing, created
FROM dba_objects);
U1 complains that the command is taking too long to execute.
In the alert log, the database administrator (DBA) finds this:
2017/3/6 14:45:17
statement in resumable session 'User U1(136), Session 1, Instance 1' was suspended due to ORA-01536: space quota exceeded for tablespace 'DATA' Which are three actions any one of which the DBA could take to resume the session? (Choose three.)
- A. Grant UNLIMITED TABLESPACE to U1
- B. Increase U1's quota sufficiently in DATA
- C. Set AUTOEXTEND ON for data files in DATA
- D. Drop other U1 objects in DATA
- E. Add a data file to DATA
- F. Set DEFERRED_SEGMENT_CREATION to TRUE
Answer: A,B,D
NEW QUESTION # 29
Which three statements are true about advanced connection options supported by Oracle Net for connection to Oracle Database instances? (Choose three.)
- A. Source Routing enables the use of Connection Manager (CMAN) which enables network traffic to be routed through a firewall
- B. Load Balancing can balance the number of connections to dispatchers when using a Shared Server configuration
- C. Load Balancing requires the use of a name server
- D. Source Routing requires the use of a name server
- E. Connect Time Failover requires the connect string to have two or more listener addresses configured
- F. Connect Time Failover requires the use of Transparent Application Failover (TAF)
Answer: A,D,E
NEW QUESTION # 30
Which two actions can you perform using DBCA for an existing database?
- A. Create an additional listener.
- B. Change the character set.
- C. Create a template that can be used to clone the database.
- D. Change the server mode from dedicated to shared, and vice versa.
- E. Create nonstandard block size tablespaces.
Answer: B,D
NEW QUESTION # 31
You want to use table compression suitable for OLTP that will:
Compress rows for all DML statements on that table
Minimize the overheads associated with compression
Which compression option is best suited for this?
- A. COLUMN STORE COMPRESS FOR ARCHIVE LOW
- B. COLUMN STORE COMPRESS FOR ARCHIVE HIGH
- C. ROW STORE COMPRESS BASIC
- D. COLUMN STORE COMPRESS FOR QUERY LOW
- E. ROW STORE COMPRESS ADVANCED
Answer: E
Explanation:
Reference:
https://www.oracle.com/technetwork/database/options/compression/advanced-compression-wp-12c-1896128.pdf
NEW QUESTION # 32
Examine this command:
CREATE UNDO TABLESPACE undotbs01
DATAFILE 'undotbs_01.dbf'
SIZE 100M
AUTOEXTEND ON;
Which two actions must you take to ensure UNDOTBS01 is used as the default UNDO tablespace? (Choose two.)
- A. Add the ONLINE clause
- B. Set UNDO_TABLESPACE to UNDOTBS01
- C. Add the NOLOGGING clause
- D. Add the SEGMENT SPACE MANAGEMENT AUTO clause
- E. Make certain that the database operates in automatic undo management mode
Answer: B,E
NEW QUESTION # 33
Which three statements are true about a self-join? (Choose three.)
- A. The query must use two different aliases for the table
- B. It must be an inner join
- C. The ON clause must be used
- D. It must be an equi join
- E. It can be an outer join
- F. The ON clause can be used
Answer: A,B,F
NEW QUESTION # 34
Which three are types of segments in an Oracle Database? (Choose three.)
- A. clusters
- B. undo
- C. tables
- D. index
- E. sequences
- F. stored procedures
Answer: A,C,D
NEW QUESTION # 35
Examine the description of the BOOKS_TRANSACTIONS table:
- A. WHERE borrowed_date = SYSDATE AND (transaction_ype = 'RM' AND .-neraber_id = 'A101' OR member_id = 'A102');
- B. WHERE borrowed_date = SYSDATE AND (transaction_type = 'RM* OR member_id IN ('A101', 'A102'));
- C. WHERE borrowed_date = SYSDATE AND transaction_type = 'RM*) OR member_id IN ('A101', 'A102');
- D. WHERE borrowed_date = SYSDATE AND {transaction_type = 'RM* AND (raeraber_id = 'A101' OR member_id = 'A102));
Answer: B,C
Explanation:
E, WHERE borrowed_date = SYSDATE AND transaction_type = 'RM' OR member_id IN ('A101', 'A102');
NEW QUESTION # 36
In your data center, Oracle Managed Files (OMF) is used for all databases.
All tablespaces are smallfile tablespaces.
SALES_Q1 is a permanent user-defined tablespace in the SALES database.
Examine this command which is about to be issued by a DBA logged in to the SALES database:
ALTER TABLESPACE sales_q1 ADD DATAFILE;
Which are two actions, either one of which you could take to ensure that the command executes successfully? (Choose two.)
- A. Ensure that DB_CREATE_FILE_DEST specifies a location with at least 100 Mb of available space.
- B. Specify a path in the DATAFILE clause of the command specifying a location with at least 100M of available space.
- C. Add the AUTOEXTEND ON clause with NEXT set to 100M.
- D. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 Mb of available space.
- E. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify with at least 50 Mb of available space.
Answer: A,B
NEW QUESTION # 37
Which three are types of segments in an Oracle Database? (Choose three.)
- A. clusters
- B. undo
- C. tables
- D. index
- E. sequences
- F. stored procedures
Answer: A,C,D
Explanation:
Reference:
http://www.adp-gmbh.ch/ora/concepts/segments.html
NEW QUESTION # 38
Which three statements are true about inner and outer joins? (Choose three.)
- A. A left or right outer join returns only unmatched rows
- B. A full outer join must use Oracle syntax
- C. Outer joins can be used when there are multiple join conditions on two tables
- D. An inner join returns matched rows
- E. Outer joins can only be used between two tables per query
- F. A full outer join returns matched and unmatched rows
Answer: C,D,F
NEW QUESTION # 39
In the SALES database, DEFERRED_SEGMENT_CREATION is TRUE.
Examine this command:
SQL> CREATE TABLE T1(c1 INT PRIMARY KEY, c2 CLOB);
Which segment or segments, if any, are created as a result of executing the command?
- A. T1 and an index segment created for the primary key only
- B. no segments are created
- C. T1, an index segment for the primary key, a LOB segment, and a lobindex segment
- D. T1, an index segment for the primary key, and a LOB segment only
- E. T1 only
Answer: E
Explanation:
Explanation/Reference:
NEW QUESTION # 40
Which two statements are true about the configuration and use of UNDO_RETENTION with GURANTEED RETENTION? (Choose two.)
- A. Active UNDO is always retained.
- B. UNDO_RETENTION specifies for how long Oracle attempts to keep unexpired UNDO.
- C. UNDO_RETENTION specifies for how long Oracle attempts to keep expired and unexpired UNDO.
- D. Unexpired UNDO is always retained.
- E. UNDO_RETENTION specifies how long all types of UNDO are retained.
Answer: C,D
NEW QUESTION # 41
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To prepare for the Oracle 1Z0-082 exam, candidates should have a solid understanding of database concepts, including Oracle Database Architecture, SQL, and PL/SQL. They should also have hands-on experience with Oracle databases and be familiar with Oracle Database Management Tools such as Oracle Enterprise Manager and SQL*Plus. Oracle offers various study materials and training courses to help candidates prepare for the exam, including classroom training, online training, and self-study materials.
Oracle 1Z0-082 exam, also known as the Oracle Database Administration I exam, is a certification exam aimed at IT professionals seeking to become certified Oracle Database Administrators. 1Z0-082 exam measures the candidate's knowledge and skills in basic database concepts, installation and configuration of the Oracle database, management of database instances, storage structures and security, backup and recovery, and performance tuning. It is a foundation-level exam that lays the groundwork for more advanced Oracle Database Administration certifications.
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