1Z0-082 Training & Certification Get Latest Oracle Database 19c Updated on Jan 28, 2022
Certification Training for 1Z0-082 Exam Dumps Test Engine
NEW QUESTION 36
Which two are true about complete and incomplete recovery? (Choose two.)
- A. Incomplete recovery is possible only when the database is open.
- B. Uncommitted transactions will be rolled back after incomplete recovery completes.
- C. Only incremental backups can be used to roll forward the database while performing complete recovery.
- D. The database must have FLASHBACK enabled in order to perform incomplete recovery.
- E. Uncommitted transactions will be rolled back after complete recovery completes.
Answer: C,E
NEW QUESTION 37
View the Exhibit and examine the structure of the PRODUCTS table.
Which two tasks require subqueries? (Choose two.)
- A. Display the number of products whose PROD_LIST_PRICE is more than the average PROD_LIST_PRICE
- B. Display the total number of products supplied by supplier 102 which have a product status of obsolete
- C. Display the minimum PROD_LIST_PRICE for each product status
- D. Display products whose PROD_MIN_PRICE is more than the average PROD_LIST_PRICE of all products, and whose status is orderable
- E. Display suppliers whose PROD_LIST_PRICE is less than 1000
Answer: A,D
NEW QUESTION 38
Which three statements are true about the tools used to configure Oracle Net Services? (Choose three.)
- A. Enterprise Manager Cloud Control can be used to centrally configure net service names for any database server target
- B. The lsnrctl utility requires a listener.ora file to exist before it is started
- C. The Oracle Net Configuration Assistant is only used when running the Oracle installer
- D. Enterprise Manager Cloud Control can be used to centrally configure listeners on any managed database server
- E. Oracle Net Manager can be used to centrally configure listeners on any database server target
- F. Oracle Net Manager can be used to locally configure naming methods on a database server
Answer: D,E,F
NEW QUESTION 39
Examine the description of the EMPLOYEES table:
Which query is valid?
- A. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id;
- B. SELECT dept_id, AVG(MAX(salary)) FROM employees GROUP BY dept_id;
- C. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id, join_date;
- D. SELECT dept_id, MAX(AVG(salary)) FROM employees GROUP BY dept_id;
Answer: A
NEW QUESTION 40
Examine these commands:
Which two statements are true about the sqlldrexecution? (Choose two.)
- A. It generates a sql script that it uses to load data from EMP.DAT to EMP
- B. It appends data from EMP.DAT to EMP
- C. It overwrites data in EMP with data in EMP.DAT
- D. It uses the database buffer cache to load data
- E. It generates a log that contains control file entries, which can be used with normal SQL*Loader operations
Answer: A,D
NEW QUESTION 41
Which two are true about a SQL statement using SET operators such as UNION? (Choose two.)
- A. The data type of each column returned by the second query must exactly match the data type of the corresponding column returned by the first query.
- B. The names and number of columns must be identical for all SELECT statements in the query.
- C. The data type of each column returned by the second query must be implicitly convertible to the data type of the corresponding column returned by the first query.
- D. The number, but not names, of columns must be identical for all SELECT statements in the query.
- E. The data type group of each column returned by the second query must match the data type of the corresponding column returned by the first query.
Answer: A,C
NEW QUESTION 42
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 only
- B. T1, an index segment for the primary key, and a LOB segment only
- C. no segments are created
- D. T1, an index segment for the primary key, a LOB segment, and a lobindex segment
- E. T1 and an index segment created for the primary key only
Answer: A
Explanation:
Explanation/Reference:
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. 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
- B. Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times
- C. If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS
- D. Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ
- E. Sequence ORD_SEQ is guaranteed not to generate duplicate numbers
Answer: D,E
NEW QUESTION 44
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:
2017-03-06T12:15:17.183438+05:30
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. Add a data file to DATA
- B. Drop other U1 objects in DATA
- C. Set AUTOEXTEND ON for data files in DATA
- D. Increase U1's quota sufficiently in DATA
- E. Grant UNLIMITED TABLESPACE to U1
- F. Set DEFERRED_SEGMENT_CREATION to TRUE
Answer: B,D,E
NEW QUESTION 45
In which three situations does a new transaction always start? (Choose three.)
- A. when issuing a TRUNCATE statement after a SELECT statement was issued in the same session
- B. when issuing the first Data Manipulation Language (DML) statement after a COMMIT OR ROLLBACK statement was issued in the same session
- C. when issuing a SELECT FOR UPDATE statement after a CREATE TABLE AS SELECT statement was issued in the same session
- D. when issuing a CREATE INDEX statement after a CREATE TABLE statement completed successfully in the same session
- E. when issuing a DML statement after a DML statement failed in the same session
- F. when issuing a CREATE TABLE statement after a SELECT statement was issued in the same session
Answer: B,C,D
Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/19/cncpt/transactions.html#GUID-7690181F-8293-47B9-ADC1-905BD9C3AF57
NEW QUESTION 46
Which four account management capabilities can be configured using Oracle profiles? (Choose four.)
- A. the maximum number of sessions permitted for a user before the account is locked
- B. the number of hours for which an account is locked after the configured number of login attempts has been reached
- C. the maximum amount of CPU time allowed for a user's sessions before their account is locked
- D. the number of days for which an account is locked after the configured number of login attempts has been reached
- E. the ability to prevent a password from ever being reused
- F. the number of days for which an account may be inactive before it is locked
- G. the number of password changes required within a period of time before a password can be reused
Answer: A,D,E,G
NEW QUESTION 47
In the spfile of a single instance database, LOCAL_LISTENER is set to LISTENER_1.
The TNSNAMES.ORA file in $ORACLE_HOME/network/admin in the database home contains:
Which statement is true?
- A. Dynamic service registration cannot be used for this database instance
- B. The LREG process registers services dynamically with the LISTENER_1 listener
- C. There are two listeners named LISTENER and LISTENER_1 running simultaneously using port 1521 on the same host as the database instances
- D. The definition for LISTENER_1 requires a CONNECT_DATA section to enable dynamic service registration
- E. LISTENER_1 must also be defined in the LISTENER.ORA file to enable dynamic service registration
Answer: B
Explanation:
The listener forwards client requests to supported services. These services are dynamically registered with the listener. This dynamic registration feature is called service registration. The registration is performed by the Listener Registration (LREG) process. Dynamic service registration does not require any manual configuration in the listener.ora file.
Reference:
https://docs.oracle.com/database/121/NETAG/listenercfg.htm#NETAG292
https://docs.oracle.com/database/121/NETAG/listenercfg.htm#NETAG292
NEW QUESTION 48
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 be a dictionary-managed tablespace by default
- B. AUTOEXTEND is possible for the datafile
- C. It will always have a 32K blocksize
- D. It must be bigger than the largest SMALLFILE tablespace
- E. Additional data files may not be added
Answer: B,D
NEW QUESTION 49
Which two statements are true about the rules of precedence for operators? (Choose two.)
- A. The + binary operator has the highest precedence in an expression in a SQL statement
- B. Multiple parentheses can be used to override the default precedence of operators in an expression
- C. NULLS influence the precedence of operators in an expression
- D. Arithmetic operators with equal precedence are evaluated from left to right within an expression
- E. The concatenation operator | | is always evaluated before addition and subtraction in an expression
Answer: B,D
Explanation:
Reference:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/operators001.htm
https://docs.oracle.com/cd/A87860_01/doc/server.817/a85397/operator.htm Precedence is the order in which Oracle evaluates different operators in the same expression. When evaluating an expression containing multiple operators, Oracle evaluates operators with higher precedence before evaluating those with lower precedence. Oracle evaluates operators with equal precedence from left to right within an expression.
NEW QUESTION 50
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. Log in to the database instance
- C. Revoke the CREATE SESSION privilege from other users
- D. Execute DML statements in the HR schema
- E. Execute DDL statements in the HR schema
- F. Revoke the CREATE SESSION privilege from user HR
Answer: A,B,C
Explanation:
Reference:
https://docs.oracle.com/cd/B28359_01/network.111/b28531/authorization.htm#DBSEG224
NEW QUESTION 51
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 2, 1
- B. ORDER BY "Last Name"
- C. ORDER BY CUST_NO
- D. ORDER BY "CUST_NO"
- E. ORDER BY 2, cust_id
Answer: A,B,E
NEW QUESTION 52
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 QUERY LOW
- C. ROW STORE COMPRESS BASIC
- D. ROW STORE COMPRESS ADVANCED
- E. COLUMN STORE COMPRESS FOR ARCHIVE HIGH
Answer: D
NEW QUESTION 53
Evaluate these commands which execute successfully:
Which two statements are true about the ORD_ITEMS table and the ORD_SEQ sequence?
(Choose two.)
- A. 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
- B. Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times
- C. If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS
- D. Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ
- E. Sequence ORD_SEQ is guaranteed not to generate duplicate numbers
Answer: D,E
NEW QUESTION 54
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 for the current instance and in the PFILE
- C. Change is applied to the current instance, but does not persist after instance restart
- D. The value is changed only in the PFILE and takes effect at the next instance startup
Answer: C
NEW QUESTION 55
Which three failures require intervention for recovery? (Choose three.)
- A. statement failure
- B. media failure
- C. network interface card (NIC) failure
- D. user process failure
- E. a user error such as dropping the wrong table
Answer: B,D,E
NEW QUESTION 56
In the spfile of a single instance database, LOCAL_LISTENER is set to LISTENER_1.
The TNSNAMES.ORA file in $ORACLE_HOME/network/admin in the database home contains:
Which statement is true?
- A. Dynamic service registration cannot be used for this database instance
- B. The LREG process registers services dynamically with the LISTENER_1 listener
- C. There are two listeners named LISTENER and LISTENER_1 running simultaneously using port 1521 on the same host as the database instances
- D. The definition for LISTENER_1 requires a CONNECT_DATA section to enable dynamic service registration
- E. LISTENER_1 must also be defined in the LISTENER.ORA file to enable dynamic service registration
Answer: E
NEW QUESTION 57
Which three statements are true about table data storage in an Oracle Database? (Choose three.)
- A. Data block headers contain their own Data Block Address (DBA)
- B. Multiple row pieces from the same row may be stored in the same block
- C. Index block free space is always contiguous in the middle of the block
- D. Multiple row pieces from the same row may be stored in different database blocks
- E. Data block free space is always contiguous in the middle of the block
- F. A table row piece can be chained across several database blocks
Answer: A,D,F
Explanation:
Reference:
https://antognini.ch/2016/10/whats-the-difference-between-row-migration-and-row-chaining/
NEW QUESTION 58
What is true about non-equijoin statement performance? (Choose two.)
- A. Table aliases can improve performance
- B. The join syntax used makes no difference to performance
- C. The BETWEEN condition always performs better than using the >= and <= conditions
- D. The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax
- E. The BETWEEN condition always performs less well than using the >= and <= conditions
Answer: A,D
NEW QUESTION 59
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Oracle Database 19c 1Z0-082 Real Exam Questions and Answers FREE Updated: https://drive.google.com/open?id=11W6jxa6LLuJz2MEnz3GApmE_7uvaoW_6
