Get New 2024 Valid Practice Oracle Database 19c 1Z0-082 Q&A - Testing Engine
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NEW QUESTION # 42
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 control file is read
- D. The Oracle background processes are started
- E. The alert log records the execution details
- F. The online data files are opened
Answer: C,D
NEW QUESTION # 43
Examine this command:
Which two statements are true? (Choose two.)
- A. If Oracle Managed Files (OMF) is used, then the file is renamed but moved to DB_CREATE_FILE_DEST.
- B. The tablespace containing SALES1.DBF must be altered READ ONLY before executing the command.
- C. DML may be performed on tables with one or more extents in this data file during the execution of this command.
- D. The tablespace containing SALES1.DBF must be altered OFFLINE before executing the command.
- E. The file is renamed and stored in the same location
Answer: C,E
NEW QUESTION # 44
Which three statements are true about external tables in Oracle 18c and later releases? (Choose three.)
- A. The ORACLE_DATAPUMP access driver can be used to unload data from a database into an external table
- B. External table files can be used for other external tables in a different database
- C. The ORACLE_DATAPUMP access driver can be used to load data into a database from an external table
- D. They cannot be partitioned
- E. The ORACLE_LOADER access driver can be used to unload data from a database into an external table
- F. They support UPDATEs but not INSERTs and DELETEs
Answer: B,E,F
NEW QUESTION # 45
Which three are types of segments in an Oracle Database? (Choose three.)
- A. sequences
- B. undo
- C. tables
- D. clusters
- E. stored procedures
- F. index
Answer: C,D,F
Explanation:
Reference:
http://www.adp-gmbh.ch/ora/concepts/segments.html
NEW QUESTION # 46
Which two statements are true about the Automatic Diagnostic Repository (ADR)? (Choose two.)
- A. The ADR base defaults to $ORACLE_HOME/dbs if the DIAGNOSTIC_DEST parameter and the ORACLE_BASE environment variable are not set
- B. It supports diagnostics for Automatic Storage Management (ASM)
- C. It is held inside an Oracle database schema
- D. The ADR base defaults to $ORACLE_HOME/rdbms/admin if neither DIAGNOSTIC_DEST nor ORACLE_BASE is set
- E. It supports diagnostics for Oracle Clusterware
Answer: C,D
Explanation:
https://docs.oracle.com/cd/E11882_01/install.112/e27508/admin.htm
NEW QUESTION # 47
Which two tasks can you perform using DBCA for databases? (Choose two.)
- A. Enable flashback database for an existing database
- B. Change the standard block size of an existing database
- C. Configure incremental backups for a new database
- D. Configure a nonstandard block size for a new database
- E. Register a new database with an available Enterprise Manager Management server
Answer: D,E
NEW QUESTION # 48
Which three statements are true about a self join? (Choose three.)
- A. The ON clause must be used
- B. It must be an equijoin
- C. It can be an outer join
- D. It must be an inner join
- E. The ON clause can be used
- F. The query must use two different aliases for the table
Answer: D,E,F
Explanation:
Explanation
NEW QUESTION # 49
Which two are true about shrinking a segment online? (Choose two.)
- A. To shrink a table it must have a PRIMARY KEY constraint
- B. It always eliminates all migrated rows if any exist in the table
- C. To shrink a table it must have row movement enabled
- D. It is not possible to shrink either indexes or Index Organized Tables (IOTs)
- E. To shrink a table it must have a UNIQUE KEY constraint
- F. It must be in a tablespace that uses Automatic Segment Space Management (ASSM)
Answer: A,C
Explanation:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_3001.htm
NEW QUESTION # 50
Which two statements are true about UNDO and REDO? (Choose two.)
- A. DML modifies Oracle database objects and only generates REDO
- B. The generation of UNDO generates REDO
- C. DML modifies Oracle database objects and only generates UNDO
- D. The generation of REDO generates UNDO
Answer: B,D
NEW QUESTION # 51
The EMPLOYEES table contains columns EMP_ID of data type NUMBER and HIRE_DATE of data type DATE.
You want to display the date of the first Monday after the completion of six months since hiring.
The NLS_TERRITORY parameter is set to AMERICA in the session and, therefore, Sunday is the first day on the week.
Which query can be used?
- A. SELECT emp_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), `MONDAY') FROM employees;
- B. SELECT emp_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), 1) FROM employees;
- C. SELECT emp_id, NEXT_DAY(MONTHS_BETWEEN(hire_date, SYSDATE), 6) FROM employees;
- D. SELECT emp_id, ADD_MONTHS(hire_date, 6), NEXT_DAY(`MONDAY') FROM employees;
Answer: A
NEW QUESTION # 52
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 2, cust_id
- C. ORDER BY "Last Name"
- D. ORDER BY CUST_NO
- E. ORDER BY 2, 1
Answer: B,D,E
NEW QUESTION # 53
Examine this description of the TRANSACTIONS table:
Which two SQL statements execute successfully? (Choose two.)
- A. SELECT customer_id AS 'CUSTOMER-ID', transaction_date AS DATE, amount + 100 'DUES AMOUNT' FROM transactions;
- B. SELECT customer_id CUSTID, transaction_date TRANS_DATE, amount + 100 DUES FROM transactions;
- C. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS "DATE", amount + 100 DUES FROM transactions;
- D. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS DATE, amount + 100 "DUES" FROM transactions;
- E. SELECT customer_id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount + 100 "DUES AMOUNT" FROM transactions;
Answer: B,C
NEW QUESTION # 54
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 # 55
Which three statements are true about Oracle synonyms? (Choose three.)
- A. Any user can drop a PUBLIC synonym
- B. A SEQUENCE can have a synonym
- C. A synonym can be available to all users
- D. A synonym cannot be created for a PL/SQL package
- E. A synonym created by one user can refer to an object belonging to another user
Answer: B,C,E
Explanation:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_7001.htm
NEW QUESTION # 56
Which two statements are true about trace files produced by the Oracle Database server? (Choose two.)
- A. Trace file names are based on the database name concatenated with a sequential number
- B. They can be written by background processes
- C. All trace files contain error information that require contacting Oracle Support
- D. They can be written by server processes
- E. Trace files are written to the Fast Recovery Area (FRA)
Answer: B,D
Explanation:
Reference:
https://docs.oracle.com/html/E25494_01/monitoring001.htm
Each server and background process can write to an associated trace file. When an internal error is detected by a process, it dumps information about the error to its trace file. Some of the information written to a trace file is intended for the database administrator, and other information is for Oracle Support Services. Trace file information is also used to tune applications and instances.
NEW QUESTION # 57
Examine the description of the CUSTOMERS table:
For customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?
- A. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
FROM customers
WHERE cust_income_level IS NOT NULL
AND cust_credit_limit IS NOT NULL; - B. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
FROM customers
WHERE cust_income_level <> NULL
AND due_amount <> NULL; - C. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
FROM customers
WHERE cust_income_level != NULL
AND cust_credit_level !=NULL; - D. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
FROM customers
WHERE cust_incoms_level IS NOT NULL
AND due_amount IS NOT NULL; - E. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
FROM customers
WHERE cust_income_level != NULL
AND due_amount !=NULL;
Answer: A
NEW QUESTION # 58
Which three activities are recorded in the database alert log? (Choose three.)
- A. non-default database parameters
- B. block corruption errors
- C. session logins and logouts
- D. deadlock errors
- E. Data Definition Language (DDL) statements
Answer: A,B,D
Explanation:
Reference:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/monitoring001.htm#ADMIN11247
NEW QUESTION # 59
Which three are true about the Oracle Optimizer? (Choose three.)
- A. It will only generate SQL Plan Directives specific to a given SQL statement.
- B. It can re-optimize execution plans after previous executions detect suboptimal plans.
- C. It updates stale object statistics in the Data Dictionary.
- D. It generates execution plans for SQL statements based on relevant schema objects, system and session parameters, and information found in the Data Dictionary.
- E. It can optimize only SELECT statements.
- F. It determines the optimal table join order and method.
Answer: D,E,F
NEW QUESTION # 60
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1Z0-082 Braindumps Real Exam Updated on Mar 12, 2024 with 145 Questions: https://actual4test.practicetorrent.com/1Z0-082-practice-exam-torrent.html