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Oracle 1Z0-082 exam covers a range of topics related to database administration, including database architecture, installation, backup and recovery, security, and performance tuning. 1Z1-082 exam consists of 84 multiple-choice questions, and candidates have two hours to complete the exam. The passing score for 1Z1-082 exam is 63%.
Oracle 1Z1-082 (Oracle Database Administration I) Certification Exam is designed to test the knowledge and skills of individuals in the field of database administration. Oracle Database Administration I certification exam is the first step towards becoming an Oracle Certified Professional (OCP) in the field of database administration. 1Z1-082 exam covers a wide range of topics related to database administration, including database architecture, installation and configuration, backup and recovery, security, and performance tuning.
The Oracle 1Z1-082 exam consists of 70 multiple-choice questions that you need to complete in 105 minutes. To pass the exam, you need to score at least 63%. The questions are designed to test your understanding of the concepts rather than just memorization. Therefore, it is essential to have hands-on experience in managing an Oracle Database to pass the exam.
NEW QUESTION # 39
Which three statements are true concerning logical and physical database structures? (Choose three.)
- A. All tablespaces may have one or more data files
- B. The extents of a segment must always reside in the same datafile
- C. A smallfile tablespace might be bigger than a bigfile tablespace
- D. Segments can span multiple tablespaces
- E. A segment's blocks can be of different sizes
- F. A segment might have only one extent
- G. A segment can span multiple data files in some tablespaces
Answer: C,D,F
NEW QUESTION # 40
View the Exhibits and examine the structure of the COSTS and PROMOTIONS tables.
You want to display PROD_IDS whose promotion cost is less than the highest cost PROD_ID in a promotion time interval.
Examine this SQL statement:
Exhibit 1.
Exhibit 2.
What will be the result?
- A. It gives an error because the ALL keyword is not valid
- B. It executes successfully but does not give the required result
- C. It gives an error because the GROUP BY clause is not valid
- D. It executes successfully and gives the required result
Answer: D
NEW QUESTION # 41
Which two are true about shrinking a segment online? (Choose two.)
- A. It is not possible to shrink either indexes or Index Organized Tables (IOTs)
- B. It always eliminates all migrated rows if any exist in the table
- C. It must be in a tablespace that uses Automatic Segment Space Management (ASSM)
- D. To shrink a table it must have a UNIQUE KEY constraint
- E. To shrink a table it must have row movement enabled
- F. To shrink a table it must have a PRIMARY KEY constraint
Answer: E,F
NEW QUESTION # 42
Which two statements are true about the rules of precedence for operators? (Choose two.)
- A. The concatenation operator | | is always evaluated before addition and subtraction in an expression
- B. Arithmetic operators with equal precedence are evaluated from left to right within an expression
- C. Multiple parentheses can be used to override the default precedence of operators in an expression
- D. NULLS influence the precedence of operators in an expression
- E. The + binary operator has the highest precedence in an expression in a SQL statement
Answer: C,E
NEW QUESTION # 43
Evaluate these commands which execute successfully:
Which two statements are true about the ORD_ITEMS table and the ORD_SEQ sequence? (Choose two.)
- A. Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ
- B. Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times
- C. Column ORD_NO gets the next number from sequence ORD_SEQ whenever a row is inserted into ORD_ITEMS and no explicit value is given for ORD_NO
- D. Sequence ORD_SEQ is guaranteed not to generate duplicate numbers
- E. If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS
Answer: A,C
NEW QUESTION # 44
Which two statements are true about the WHERE and HAVING clauses in a SELECT statement? (Choose two.)
- A. WHERE and HAVING clauses can be used in the same statement only if applied to different table columns
- B. The WHERE clause can be used to exclude rows after dividing them into groups
- C. The HAVING clause can be used with aggregating functions in subqueries
- D. Aggregating functions and columns used in HAVING clauses must be specified in the SELECT list of a query
- E. The WHERE clause can be used to exclude rows before dividing them into groups
Answer: C,E
NEW QUESTION # 45
Which three statements are true concerning logical and physical database structures? (Choose three.)
- A. All tablespaces may have one or more data files
- B. The extents of a segment must always reside in the same datafile
- C. A smallfile tablespace might be bigger than a bigfile tablespace
- D. Segments can span multiple tablespsaces
- E. A segment's blocks can be of different sizes
- F. A segment might have only one extent
- G. A segment can span multiple data files in some tablespaces
Answer: C,D,F
NEW QUESTION # 46
Which two statements are true about interval data types?
- A. INTERVAL year to month columns only support monthly intervals within a range of years.
- B. The value in an interval day to SECOND column can be copied into an interval year to month column.
- C. The year field in an interval year to month column must be a positive value.
- D. INTERVAL day to second columns support fractions of seconds.
- E. INTERVAL year TO month columns support yearly intervals.
- F. INTERVAL year to month columns only support monthly Intervals within a single year.
Answer: D,E
NEW QUESTION # 47
Your database instance was shut down normally and then started in NOMOUNT state. You then execute this command:
ALTER DATABASE MOUNT;
Which two actions are performed? (Choose two.)
- A. The online redo logs are opened
- B. The initialization parameter file is read
- C. The online data files are opened
- D. The control file is read
- E. The alert log records the execution details
- F. The Oracle background processes are started
Answer: D,F
NEW QUESTION # 48
Examine the description of the SALES1 table:
SALES2 is a table with the same description as SALES1.
Some sales data is duplicated in both tables.
You want to display the rows from the SALES1 table which are not present in the SALES2 table.
Which set operator generates the required output?
- A. MINUS
- B. UNION ALL
- C. SUBTRACT
- D. INTERSECT
- E. UNION
Answer: A
NEW QUESTION # 49
Which three statements are true about Oracle synonyms? (Choose three.)
- A. A SEQUENCE can have a synonym
- B. A synonym cannot be created for a PL/SQL package
- C. A synonym created by one user can refer to an object belonging to another user
- D. Any user can drop a PUBLIC synonym
- E. A synonym can be available to all users
Answer: A,C,E
Explanation:
Explanation/Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_7001.htm
NEW QUESTION # 50
Which two statements are true about single row functions? (Choose two.)
- A. CEIL : can be used for positive and negative numbers
- B. CONCAT : can be used to combine any number of values
- C. MOD : returns the quotient of a division operation
- D. FLOOR : returns the smallest integer greater than or equal to a specified number
- E. TRUNC : can be used to combine any number of values
Answer: C,E
NEW QUESTION # 51
Which three statements are true about the Oracle Data Dictionary? (Choose three.)
- A. Views with the same name but different prefixes, such as CDB, DBA, ALL and USER, reference the same base tables from the data dictionary
- B. It is owned by the SYSTEM user
- C. Usernames of all users including database administrators are stored in the data dictionary
- D. Base tables can be queried directly
- E. Data dictionary views are created by joins of dictionary base tables and DBA-defined tables
- F. The data dictionary is created and maintained by the database administrator
Answer: A,C,D
NEW QUESTION # 52
The SALES_Q1 and USERS tablespaces exist in one of your databases and TEMP is a temporary tablespace.
Segment creation is not deferred.
You execute this command:
Which three statements must be true so that the SALES user can create tables in SALES_Q1?
(Choose three.)
- A. The sales user must have their quota on the users tablespace removed
- B. The sales user must have been granted the CREATE SESSION privilege
- C. The sales user must have a quota on the TEMP tablespace
- D. The sales user must have been granted the CREATE TABLE privilege
- E. The sales user must have a quota on the SALES_Q1 tablespace to hold all the rows to be inserted into any table in their schema
- F. The sales user must have a quota on the SALES_Q1 tablespace to hold the initial extends of all tables they plan to create in their schema
Answer: A,D,F
NEW QUESTION # 53
The orders table has a column ORDER_DATE of data type date.
The default display format for a date Is DD-MON-RR.
Which two where conditions demonstrate the correct usage of conversion functions?
- A. WHERE order_date > TO_CHAR(ADD_MONTHS(SYSDATE, 6), 'MON DD YYYY')
- B. WHERE order_date > TO_DATE<ADD_MONTHS(SYSDATE, c) , 'MON DD YYYY')
- C. WHERE TO_CHAR(order_date, 'MON DD YYYY') = 'JAN 20 2019'
- D. WHERE order date > TO DATE('JUL 10 2018', *MON DD YYYY')
- E. WHERE order_date IN (TO_DATE ('Oct 21 2018', 'Mon DD YYYY'), TC_CHAR('Nov 21 2018', 'Mon DD YYYY'))
Answer: C,D
NEW QUESTION # 54
Which two statements are true about date/time functions in a session where NLS_DATE_FORMAT is set to DD-MON-YYYY HH24:MI:SS? (Choose two.)
- A. CURRENT_TIMESTAMP returns the same date and time as SYSDATE with additional details of fractional seconds
- B. CURRENT_TIMESTAMP returns the same date as CURRENT_DATE
- C. SYSDATE can be queried only from the DUAL table
- D. SYSDATE and CURRENT_DATE return the current date and time set for the operating system of the database server
- E. SYSDATE can be used in expressions only if the default date format is DD-MON-RR
- F. CURRENT_DATE returns the current date and time as per the session time zone
Answer: B,F
Explanation:
https://www.w3resource.com/oracle/datetime-functions/oracle-current_timestamp-function.php
NEW QUESTION # 55
In the ORCL database, UNDOTBS1 is the active undo tablespace with these properties:
1. A size of 100 MB
2. AUTOEXTEND is off
3. UNDO_RETENTION is set to 15 minutes
4. It has RETENTION GUARANTEE
UNDOTBS1 fills with uncommitted undo 10 minutes after the database opens.
What will happen when the next update is attempted by any transaction?
- A. It succeeds and the least recently written undo block of UNDOTBS1 is overwritten by the generated undo.
- B. It succeeds and the generated undo is stored in SYSAUX.
- C. It succeeds and the generated undo is stored in SYSTEM.
- D. It fails and returns the error message "ORA-30036: unable to extend segment by 8 in undo tablespace 'UNDOTBS1'".
- E. It succeeds and the least recently read undo block of UNDOTBS1 is overwritten by the generated undo.
Answer: D
Explanation:
To guarantee the success of long-running queries or Oracle Flashback operations, you can enable retention guarantee. If retention guarantee is enabled, the specified minimum undo retention is guaranteed; the database never overwrites unexpired undo data even if it means that transactions fail due to lack of space in the undo tablespace. If retention guarantee is not enabled, the database can overwrite unexpired undo when space is low, thus lowering the undo retention for the system. This option is disabled by default.
NEW QUESTION # 56
View the Exhibit and examine the structure of the PRODUCTS table.
Which two tasks require subqueries? (Choose two.)
- A. Display the minimum PROD_LIST_PRICE for each product status
- B. Display the total number of products supplied by supplier 102 which have a product status of obsolete
- C. Display products whose PROD_MIN_PRICE is more than the average PROD_LIST_PRICE of all products, and whose status is orderable
- D. Display the number of products whose PROD_LIST_PRICE is more than the average PROD_LIST_PRICE
- E. Display suppliers whose PROD_LIST_PRICE is less than 1000
Answer: C,D
NEW QUESTION # 57
Your database instance is started with a PFILE.
Examine these parameters:
You want to increase the size of the buffer cache.
Free memory is available to increase the size of the buffer cache.
You execute the command:
SQL> ALTER SYSTEM SET DB_CACHE_SIZE=1024M;
What is the outcome?
- A. It fails because the SCOPE clause is missing
- B. The value is changed only in the PFILE and takes effect at the next instance startup
- C. The value is changed for the current instance and in the PFILE
- D. Change is applied to the current instance, but does not persist after instance restart
Answer: D
Explanation:
Reference:
https://docs.oracle.com/database/121/SQLRF/statements_2017.htm#SQLRF00902
NEW QUESTION # 58
In one of your databases, you create a user, HR, and then execute this command:
GRANT CREATE SESSION TO hr WITH ADMIN OPTION;
Which four actions can HR perform? (Choose four.)
- A. Revoke the CREATE SESSION privilege from user HR
- B. Execute DML statements in the HR schema
- C. Execute DDL statements in the HR schema
- D. Log in to the database instance
- E. Grant the CREATE SESSION privilege with ADMIN OPTION to other users
- F. Revoke the CREATE SESSION privilege from other users
Answer: A,D,E,F
Explanation:
Explanation
NEW QUESTION # 59
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