[Apr 19, 2023] Get New 1Z0-082 Practice Test Questions Answers
1Z0-082 Dumps and Exam Test Engine
The Oracle 1Z1-082 exam is designed for professionals who want to demonstrate their skills and knowledge in Oracle Database Administration. This exam is the first step towards becoming an Oracle Certified Professional (OCP) in Oracle Database Administration. The 1Z1-082 exam covers a range of topics including installation and configuration, backup and recovery, security, performance tuning, and more.
NEW QUESTION # 20
Your database instance is started with an SPFILE.
A PFILE is also available. You execute this command:
ALTER SYSTEM SET DB_CACHE_SIZE=100K;
Where Is the value changed?
- A. only in memory
- B. in the SPFILE and in memory
- C. in the SPFILE, SPFILE, and memory
- D. only In the SPFILE
- E. in the SPFILE and SPFILEc
Answer: E
NEW QUESTION # 21
What is true about non-equijoin statement performance? (Choose two.)
- A. The BETWEEN condition always performs better than using the >= and <= conditions
- B. Table aliases can improve performance
- C. The join syntax used makes no difference to performance
- D. The BETWEEN condition always performs less well than using the >= and <= conditions
- E. The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax
Answer: B,E
Explanation:
https://stackoverflow.com/questions/58476906/1z0-071-oracle-exam-question-which-answers-is-correc
NEW QUESTION # 22
Which three statements are true about single-row functions? (Choose three.)
- A. The data type returned can be different from the data type of the argument
- B. They can be used only in the WHERE clause of a SELECT statement
- C. The argument can be a column name, variable, literal or an expression
- D. They return a single result row per table
- E. They can be nested to any level
- F. They can accept only one argument
Answer: A,C,D
Explanation:
https://www.folkstalk.com/2012/01/oracle-single-row-functions-examples.html
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. ROW STORE COMPRESS BASIC
- B. COLUMN STORE COMPRESS FOR ARCHIVE LOW
- C. ROW STORE COMPRESS ADVANCED
- D. COLUMN STORE COMPRESS FOR ARCHIVE HIGH
- E. COLUMN STORE COMPRESS FOR QUERY LOW
Answer: C
Explanation:
https://www.oracle.com/technetwork/database/options/compression/advanced-compression- wp-
12c-1896128.pdf
NEW QUESTION # 24
A user complains about poor database performance. You suspect that the user's session is waiting for an event to complete.
You want to verify this.
Which two views may reveal for what the user's session is currently waiting? (Choose two.)
- A. V$SESSION_WAIT_CLASS
- B. V$SYSTEM_EVENT
- C. V$SESSION_WAIT
- D. V$SESSION_EVENT
- E. V$SESSION
Answer: C,D
NEW QUESTION # 25
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 GROUP BY clause is not valid
- B. It executes successfully but does not give the required result
- C. It executes successfully and gives the required result
- D. It gives an error because the ALL keyword is not valid
Answer: C
NEW QUESTION # 26
Which two statements are true about Database Instances and Real Application Clusters (RAC)?
- A. A RAC database can have instances on separate servers.
- B. A RAC database can have one Instance.
- C. Two RAC databases can share their instances.
- D. A RAC database must have two or more instances.
- E. A RAC database must have three or more Instances.
Answer: A,B
NEW QUESTION # 27
Table EMPLOYEES contains columns including EMPLOYEE_ID, JOB_ID and SALARY.
Only the EMPLOYEE_ID column is indexed.
Rows exist for employees 100 and 200.
Examine this statement:
Which two statements are true? (Choose two.)
- A. Employee 100 will have SALARY set to the same value as the SALARY of employee 200
- B. Employee 200 will have SALARY set to the same value as the SALARY of employee 100
- C. Employees 100 and 200 will have the same SALARY as before the update command
- D. Employee 100 will have JOB_ID set to the same value as the JOB_ID of employee 200
- E. Employees 100 and 200 will have the same JOB_ID as before the update command
- F. Employee 200 will have JOB_ID set to the same value as the JOB_ID of employee 100
Answer: A,F
NEW QUESTION # 28
Which two statements are true about the SET VERIFY ON command? (Choose two.)
- A. It displays values for variables prefixed with &&
- B. It can be used in SQL Developer and SQL*Plus
- C. It displays values for variables created by the DEFINE command
- D. It displays values for variables used only in the WHERE clause of a query
- E. It can be used only in SQL*Plus
Answer: A,B
NEW QUESTION # 29
The sales table has columns prod_id and quantity_sold of data type number In two queries execute successfully? x
- A. SELECT prod_id FROM sales WHERE quantity_sold > 5S000 AND COUNT(-) > 10 GROUP BY prod_id HAVING COUNT(-) > 10;
- B. SELECT COUNTlprod_id> FROM sales GROUP BY prod_id WHERE quantity_Sold > 55000;
- C. SELECT prod_id FROM sales WHERE quantity_sold > 55000 GROUP BY prod_id HAVING COUNT(-) > 10;
- D. SELECT COUNT|prod_id> FROM sales WHERE quantity_sold > 55000 GROUP BY prod_id;
- E. SELECT prod_id FROM sales WHERE quantity_scld > 55000 AND COUNT(-) > 10 GROUP BY COUNT(-) > 10;
Answer: C,D
NEW QUESTION # 30
Examine these SQL statements which execute successfully:
Which two statements are true after execution?
- A. The primary key constraint will be enabled and immediate.
- B. The primary key constraint will be enabled and deferred.
- C. The foreign key constraint will be enabled and deferred.
- D. The foreign key constraint will be disabled.
- E. The foreign key constraint will be enabled and immediate.
Answer: D
NEW QUESTION # 31
Which three statements are true about views in an Oracle database? (Choose three.)
- A. Data Manipulation Language (DML) can always be used on views
- B. The WITH CHECK clause prevents certain rows from being updated or inserted
- C. Deleting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error
- D. The WITH CHECK clause prevents certain rows from being displayed when querying the view
- E. Views can be updated without the need to re-grant privileges on the view
- F. Inserting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error
- G. Tables in the defining query of a view must always exist in order to create the view
Answer: C,E,F
NEW QUESTION # 32
What is true about non-equijoin statement performance? (Choose two.)
- A. The BETWEEN condition always performs better than using the >= and <= conditions
- B. Table aliases can improve performance
- C. The join syntax used makes no difference to performance
- D. The BETWEEN condition always performs less well than using the >= and <= conditions
- E. The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax
Answer: B,E
Explanation:
Explanation
NEW QUESTION # 33
Which three failures do not require intervention for recovery? (Choose three.)
- A. network interface card (NIC) failure
- B. transaction failure
- C. user process failure
- D. media failure
- E. statement failure
Answer: B,C,E
NEW QUESTION # 34
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. ROW STORE COMPRESS BASIC
- B. COLUMN STORE COMPRESS FOR ARCHIVE LOW
- C. ROW STORE COMPRESS ADVANCED
- D. COLUMN STORE COMPRESS FOR ARCHIVE HIGH
- E. COLUMN STORE COMPRESS FOR QUERY LOW
Answer: C
Explanation:
Explanation/Reference: https://www.oracle.com/technetwork/database/options/compression/advanced-compression-wp-
12c-1896128.pdf
NEW QUESTION # 35
Which three statements are true about time zones, date data types, and timestamp data types in an Oracle database? (Choose three.)
- A. A TIMESTAMP WITH LOCAL TIMEZONE data type column is stored in the database using the time zone of the session that inserted the row
- B. A TIMESTAMP data type column contains information about year, month, and day
- C. The DBTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
- D. The SESSIONTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
- E. The CURRENT_TIMESTAMP function returns data without time zone information
Answer: C,D,E
NEW QUESTION # 36
Examine the description of the employees table:
Which query requires explicit data type conversion?
- A. SELECT join_date + '20' FROM employees; SELECT salary * '120.50' FROM employees;
- B. SELECT join_date I I ' ' II salary FROM employees;
- C. SELECT join_date FROM employees WHERE join_date > '10-02-2018';
- D. SELECT SUBSTR<join_date, 1, 2) - 10 FROM employees;
Answer: C
NEW QUESTION # 37
Which three activities are recorded in the database alert log? (Choose three.)
- A. block corruption errors
- B. session logins and logouts
- C. non-default database parameters
- D. deadlock errors
- E. Data Definition Language (DDL) statements
Answer: A,C,D
Explanation:
Reference:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/monitoring001.htm#ADMIN11247
NEW QUESTION # 38
Which three activities are recorded in the database alert log? (Choose three.)
- A. block corruption errors
- B. session logins and logouts
- C. non-default database parameters
- D. deadlock errors
- E. Data Definition Language (DDL) statements
Answer: A,C,D
NEW QUESTION # 39
In one of your databases, you create a user, HR, and then execute this command:
GRANT CREATE SESSION TO hr WITH ADMIN OPTION;
Which three actions can HR perform? (Choose three.)
- A. Grant the CREATE SESSION privilege with ADMIN OPTION to other users
- B. Execute DDL statements in the HR schema
- C. Log in to the database instance
- D. Execute DML statements in the HR schema
- E. Revoke the CREATE SESSION privilege from other users
- F. Revoke the CREATE SESSION privilege from user HR
Answer: A,C,E
Explanation:
Reference:
https://docs.oracle.com/cd/B28359_01/network.111/b28531/authorization.htm#DBSEG224
NEW QUESTION # 40
Which three statements are true concerning logical and physical database structures? (Choose three.)
- A. A segment might have only one extent
- B. A segment's blocks can be of different sizes
- C. A segment can span multiple data files in some tablespaces
- D. A smallfile tablespace might be bigger than a bigfile tablespace
- E. All tablespaces may have one or more data files
- F. The extents of a segment must always reside in the same datafile
- G. Segments can span multiple tablespsaces
Answer: A,D,G
NEW QUESTION # 41
Which three statements are true about a self-join? (Choose three.)
- A. It must be an inner join
- B. It must be an equi join
- C. The ON clause must be used
- D. It can be an outer join
- E. The ON clause can be used
- F. The query must use two different aliases for the table
Answer: A,E,F
NEW QUESTION # 42
You execute this command:
CREATE SMALLFILE TABLESPACE sales
DATAFILE '/u01/app/oracle/sales01.dbf
SIZE 5G
SEGMENT SPACE MANAGEMENT AUTO;
Which two statements are true about the SALES tablespace? (Choose two.)
- A. Any data files added to the tablespace must have a size of 5 gigabytes
- B. It is a locally managed tablespace
- C. It uses the database default blocksize
- D. It must be smaller than the smallest BIGFILE tablespace
- E. Free space is managed using freelists
Answer: B,C
NEW QUESTION # 43
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 suppliers whose PROD_LIST_PRICE is less than 1000
- D. Display the number of products whose PROD_LIST_PRICE is more than the average PROD_LIST_PRICE
- E. Display products whose PROD_MIN_PRICE is more than the average PROD_LIST_PRICE of all products, and whose status is orderable
Answer: D,E
NEW QUESTION # 44
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. ROW STORE COMPRESS BASIC
- B. COLUMN STORE COMPRESS FOR ARCHIVE LOW
- C. ROW STORE COMPRESS ADVANCED
- D. COLUMN STORE COMPRESS FOR ARCHIVE HIGH
- E. COLUMN STORE COMPRESS FOR QUERY LOW
Answer: C
Explanation:
Reference:
https://www.oracle.com/technetwork/database/options/compression/advanced-compression-wp-12c-1896128.pdf
NEW QUESTION # 45
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The Oracle 1Z1-082 exam tests your knowledge of the Oracle Database Administration concepts and principles. The exam is divided into multiple sections, each covering a specific area of database administration. These sections include Database Architecture, Instance Management, Storage Management, User Management, and Backup and Recovery. Each section requires a deep understanding of the subject matter, and the exam questions are designed to test your knowledge and application of these concepts.
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