1Z0-082 Dumps PDF New [2021] Ultimate Study Guide
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Who should take the Oracle 1z0-082: Oracle Database Administration I Exam
This course is designed for Database Administrators and Database production Systems Administrators.
NEW QUESTION 28
Which three statements are true concerning logical and physical database structures? (Choose three.)
- A. A segment can span multiple data files in some tablespaces
- B. A smallfile tablespace might be bigger than a bigfile tablespace
- C. Segments can span multiple tablespaces
- D. All tablespaces may have one or more data files
- E. The extents of a segment must always reside in the same datafile
- F. A segment might have only one extent
- G. A segment's blocks can be of different sizes
Answer: B,E,F
NEW QUESTION 29
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 "CUST_NO"
- C. ORDER BY 2, cust_id
- D. ORDER BY 2, 1
- E. ORDER BY "Last Name"
Answer: A,C,D
NEW QUESTION 30
In one of your databases, user KING is:
1. Not a DBA user
2. An operating system (OS) user
Examine this command and its output:
What must you do so that KING is authenticated by the OS when connecting to the database instance?
- A. Grant DBA to KING
- B. Unset REMOTE_LOGIN_PASSWORDFILE
- C. Have the OS administrator add KING to the OSDBA group
- D. Set OS_AUTHEN_PREFIX to OPS$
- E. Alter user KING to be IDENTIFIED EXTERNALLY
Answer: B
NEW QUESTION 31
View the Exhibit and examine the structure of the PRODUCTS table.
Which two tasks require subqueries? (Choose two.)
- A. Display the total number of products supplied by supplier 102 which have a product status of obsolete
- B. Display the minimum PROD_LIST_PRICE for each product status
- 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 32
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 generated undo is stored in SYSAUX.
- B. It succeeds and the generated undo is stored in SYSTEM.
- C. It succeeds and the least recently read undo block of UNDOTBS1 is overwritten by the generated undo.
- 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 written undo block of UNDOTBS1 is overwritten by the generated undo.
Answer: E
NEW QUESTION 33
You execute this command:
CREATE SMALLFILE TABLESPACE sales
DATAFILE '/u01/app/oracle/sales01.dbf
SIZE 5G
SEGMENT SPACE MANAGEMENT AUTO;
Which two actions must you take to ensure UNDOTBS01 is used as the default UNDO tablespace? (Choose two.)
- A. It is a locally managed tablespace
- B. It must be smaller than the smallest BIGFILE tablespace
- C. Free space is managed using freelists
- D. Any data files added to the tablespace must have a size of 5 gigabytes
- E. It uses the database default blocksize
Answer: A,E
Explanation:
Explanation/Reference:
NEW QUESTION 34
Which two statements are true about the DUAL table? (Choose two.)
- A. It can be accessed by any user who has the SELECT privilege in any schema
- B. It can display multiple rows and columns
- C. It can be used to display only constants or pseudo columns
- D. It can be accessed only by the SYS user
- E. It can display multiple rows but only a single column
- F. It consists of a single row and single column of VARCHAR2 data type
Answer: D,F
Explanation:
https://en.wikipedia.org/wiki/DUAL_table
NEW QUESTION 35
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 JOB_ID set to the same value as the JOB_ID of employee 100
- C. Employee 100 will have JOB_ID set to the same value as the JOB_ID of employee 200
- D. Employee 200 will have SALARY set to the same value as the SALARY of employee 100
- E. Employees 100 and 200 will have the same JOB_ID as before the update command
- F. Employees 100 and 200 will have the same SALARY as before the update command
Answer: A,B
NEW QUESTION 36
Which two statements are true about the ORDER BY clause when used with a SQL statement containing a SET operator such as UNION? (Choose two.)
- A. Each SELECT statement in the compound query can have its own ORDER BY clause
- B. The first column in the first SELECT of the compound query with the UNION operator is used by default to sort output in the absence of an ORDER BY clause
- C. Only column names from the first SELECT statement in the compound query are recognized
- D. Each SELECT statement in the compound query must have its own ORDER BY clause
- E. Column positions must be used in the ORDER BY clause
Answer: B,C
NEW QUESTION 37
Which two statements are true about Enterprise Manager Database Express? (Choose two.)
- A. It is available only when the database is open
- B. The same port number can be used for multiple Database Express configurations for multiple databases on the same host
- C. It can be used to perform database recovery
- D. The same port number can be used for Database Express configurations for databases on different hosts
- E. It can be used to switch a database into ARCHIVELOGMODE
Answer: A,D
Explanation:
Reference:
https://docs.oracle.com/en/database/oracle/oracle-database/19/admqs/getting-started-with-database-administration.html#GUID-EB851101-07BE-4038-BB9D-06E01CC7F5D5
NEW QUESTION 38
View the Exhibit and examine the structure of the PRODUCTS table.
Which two tasks require subqueries? (Choose two.)
- A. Display the total number of products supplied by supplier 102 which have a product status of obsolete
- B. Display the minimum PROD_LIST_PRICE for each product status
- 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 39
Which four statements are true regarding primary and foreign key constraints and the effect they can have on table data? (Choose four.)
- A. A table can have only one primary key but multiple foreign keys
- B. The foreign key columns and parent table primary key columns must have the same names
- C. It is possible for child rows that have a foreign key to remain in the child table at the time the parent row is deleted
- D. It is possible for child rows that have a foreign key to be deleted automatically from the child table at the time the parent row is deleted
- E. A table can have only one primary key and foreign key
- F. Only the primary key can be defined at the column and table level
- G. Primary key and foreign key constraints can be defined at both the column and table level
Answer: A,B,D,G
NEW QUESTION 40
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. Specify a path in the DATAFILE clause of the command specifying a location with at least 100M of available space.
- B. Add the AUTOEXTEND ON clause with NEXT set to 100M.
- C. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify with at least 50 Mb of available space.
- D. Ensure that DB_CREATE_FILE_DEST specifies a location with at least 100 Mb of available space.
- E. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 Mb of available space.
Answer: A,B
NEW QUESTION 41
Which statement is true about smallfile tablespaces?
- A. Maximum file size can be set to unlimited only if the logical volume manager supports striping.
- B. Extent location metadata is stored in the data dictionary by default.
- C. The number of data files is constrained only by the size of the storage array.
- D. Segments can span multiple data files.
- E. Segments can span multiple tablespaces.
Answer: D
NEW QUESTION 42
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 JOB_ID set to the same value as the JOB_ID of employee 100
- C. Employee 100 will have JOB_ID set to the same value as the JOB_ID of employee 200
- D. Employee 200 will have SALARY set to the same value as the SALARY of employee 100
- E. Employees 100 and 200 will have the same JOB_ID as before the update command
- F. Employees 100 and 200 will have the same SALARY as before the update command
Answer: A,C
NEW QUESTION 43
Which two are true about complete recovery? (Choose two.)
- A. Uncommitted transactions will be rolled back after it completes.
- B. Only RMAN backupsets can be used to restore a database as part of it.
- C. The database must have FLASHBACK enabled in order to perform it.
- D. It is possible only when the database is in MOUNT state
- E. Incremental backups can be used to roll forward the database while performing it.
Answer: C,D
NEW QUESTION 44
Which three statements are true about time zones, date data types, and timestamp data types in an Oracle database? (Choose three.)
- A. A TIMESTAMP data type column contains information about year, month, and day
- B. A TIMESTAMP WITH LOCAL TIMEZONE data type column is stored in the database using the time zone of the session that inserted the row
- C. The CURRENT_TIMESTAMP function returns data without time zone information
- D. The SESSIONTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
- E. The DBTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
Answer: B,D,E
NEW QUESTION 45
In one of your databases, user KING is:
1. Not a DBA user
2. An operating system (OS) user
Examine this command and its output:
What must you do so that KING is authenticated by the OS when connecting to the database instance?
- A. Grant DBA to KING
- B. Unset REMOTE_LOGIN_PASSWORDFILE
- C. Have the OS administrator add KING to the OSDBA group
- D. Set OS_AUTHEN_PREFIX to OPS$
- E. Alter user KING to be IDENTIFIED EXTERNALLY
Answer: B
NEW QUESTION 46
In one of your databases, the user HR has the password HRMGR. You want to connect to a database instance whose listener listens on port 1531 by using this statement:
CONNECT HR/HRMGR@orcl
No name server is used.
Which statement is true about ORCL?
- A. It must be the name of the server running the database to whose instance HR wishes to connect
- B. It must be the name of the database to whose instance HR wishes to connect
- C. It must resolve to a valid connect descriptor in the server's tnsnames.ora file
- D. It must be the value of the SERVICE_NAMES parameter on the client side
- E. It must resolve to a valid connect descriptor in the client's tnsnames.ora file
Answer: A
NEW QUESTION 47
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