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How to Prepare for Oracle 1z0-082: Oracle Database Administration 1 Exam
Preparation Guide for Oracle 1z0-082: Oracle Database Administration 1 Exam
Introduction
Oracle, based in California, is an American multinational Information Technology company. Oracle is an international company that develops software applications for business. To help enterprises develop their operations, Oracle provides a variety of cloud-based applications and systems as well as hardware and services. Data management, business analytics, IT operations management, enterprise resource planning, security, and emerging technologies are the focus of Oracle’s applications. Oracle is best known for its database software and technology. Oracle Database, a relational Database Management System (DBMS), is one of the most popular corporate database products.
Oracle also develops and builds tools and technologies for database management systems for middle-tier applications, Human Capital Management systems (HCM), Customer Relationship Management systems (CRM), Enterprise Resource Planning systems (ERP), and Supply Chain Management systems (SCM). Oracle Database commonly known as Oracle Database Management System (DBMS) is a multi-model database management system. It is a widely used database to run tasks for Data warehousing and Online Transaction processing databases. Different service providers make Oracle Database accessible on cloud, premises, or a hybrid cloud installation.
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NEW QUESTION 54
Which three statements are true about advanced connection options supported by Oracle Net for connection to Oracle Database instances? (Choose three.)
- A. Connect Time Failover requires the connect string to have two or more listener addresses configured
- B. Connect Time Failover requires the use of Transparent Application Failover (TAF)
- C. Source Routing requires the use of a name server
- D. Source Routing enables the use of Connection Manager (CMAN) which enables network traffic to be routed through a firewall
- E. Load Balancing requires the use of a name server
- F. Load Balancing can balance the number of connections to dispatchers when using a Shared Server configuration
Answer: A,D,F
Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/12.2/rilin/shared-server-configuration-for-an-oracle-rac-database.html#GUID-2EFBA08D-FEEE-407F-BC42-E548DA946DF9
NEW QUESTION 55
Which two statements are true about the WHERE and HAVING clauses in a SELECT statement? (Choose two.)
- A. Aggregating functions and columns used in HAVING clauses must be specified in the SELECT list of a query
- B. The HAVING clause can be used with aggregating functions in subqueries
- C. WHERE and HAVING clauses can be used in the same statement only if applied to different table columns
- D. The WHERE clause can be used to exclude rows before dividing them into groups
- E. The WHERE clause can be used to exclude rows after dividing them into groups
Answer: B,D
NEW QUESTION 56
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 a quota on the SALES_Q1 tablespace to hold all the rows to be inserted into any table in their schema
- B. The sales user must have a quota on the TEMP tablespace
- C. 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
- D. The sales user must have been granted the CREATE SESSION privilege
- E. The sales user must have their quota on the users tablespace removed
- F. The sales user must have been granted the CREATE TABLE privilege
Answer: C,E,F
NEW QUESTION 57
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 a quota on the SALES_Q1 tablespace to hold all the rows to be inserted into any table in their schema
- B. The sales user must have a quota on the TEMP tablespace
- C. 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
- D. The sales user must have been granted the CREATE SESSION privilege
- E. The sales user must have their quota on the users tablespace removed
- F. The sales user must have been granted the CREATE TABLE privilege
Answer: C,E,F
NEW QUESTION 58
Examine the description of the BOOKS table:
The table has 100 rows.
Examine this sequence of statements issued in a new session:
INSERT INTO books VALUES ('ADV112', 'Adventures of Tom Sawyer', NULL, NULL); SAVEPOINT a; DELETE FROM books; ROLLBACK TO SAVEPOINT a; ROLLBACK; Which two statements are true? (Choose two.)
- A. The second ROLLBACK command does nothing
- B. The first ROLLBACK command restores the 101 rows that were deleted, leaving the inserted row still to be committed
- C. The second ROLLBACK command replays the delete
- D. The second ROLLBACK command undoes the insert
- E. The first ROLLBACK command restores the 101 rows that were deleted and commits the inserted row
Answer: D,E
NEW QUESTION 59
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, join_date, SUM(salary) FROM employees GROUP BY dept_id, join_date;
- C. SELECT dept_id, MAX(AVG(salary)) FROM employees GROUP BY dept_id;
- D. SELECT dept_id, AVG(MAX(salary)) FROM employees GROUP BY dept_id;
Answer: A
NEW QUESTION 60
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 TRANS_DATE, amount + 100
"DUES AMOUNT" FROM transactions; - B. SELECT customer_id AS `CUSTOMER-ID', transaction_date AS DATE, amount + 100 `DUES AMOUNT' FROM transactions;
- C. SELECT customer_id CUSTID, transaction_date TRANS_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 DATE, amount + 100 "DUES" FROM transactions;
Answer: C,D
NEW QUESTION 61
Which three statements are true about a self-join? (Choose three.)
- A. The query must use two different aliases for the table
- B. It must be an inner join
- C. The ON clause can be used
- D. It must be an equi join
- E. It can be an outer join
- F. The ON clause must be used
Answer: A,B,C
NEW QUESTION 62
Which two statements are true about the Automatic Diagnostic Repository (ADR)? (Choose two.)
- A. It supports diagnostics for Automatic Storage Management (ASM)
- B. The ADR base defaults to $ORACLE_HOME/dbs if the DIAGNOSTIC_DEST parameter and the ORACLE_BASE environment variable are not set
- C. It is held inside an Oracle database schema
- D. It supports diagnostics for Oracle Clusterware
- E. The ADR base defaults to $ORACLE_HOME/rdbms/admin if
neither DIAGNOSTIC_DEST nor ORACLE_BASE is set
Answer: C,E
Explanation:
Explanation/Reference: https://docs.oracle.com/cd/E11882_01/install.112/e27508/admin.htm
NEW QUESTION 63
You execute this command:
Sufficient storage is available in filesystem /u01.
Which two statements are true about the BIG_TBS tablespace? (Choose two.)
- A. It must be bigger than the largest SMALLFILE tablespace
- B. Additional data files may not be added
- C. AUTOEXTEND is possible for the datafile
- D. It will be a dictionary-managed tablespace by default
- E. It will always have a 32K blocksize
Answer: B,C
NEW QUESTION 64
Which two statements are true about UNDO and REDO? (Choose two.)
- A. The generation of REDO generates UNDO
- B. DML modifies Oracle database objects and only generates UNDO
- C. DML modifies Oracle database objects and only generates REDO
- D. The generation of UNDO generates REDO
- E. DML modifies Oracle database objects and generates UNDO and REDO
Answer: A,D
NEW QUESTION 65
Examine this command and some partial output:
Why does the DB01.abc.com service show unknown status?
- A. The service DB01.abc.com is statically registered
- B. The service DB01.abc.com is dynamically registered
- C. The SID_LIST_LISTENER section is not contained in the LISTENER.ORA file
- D. The LOCAL_LISTENER database parameter is not set to a service name that refers to LISTENER_1
- E. The listener is not listening on the default port 1521
Answer: D
NEW QUESTION 66
The INVOICE table has a QTY_SOLD column of data type NUMBER and an INVOICE_DATE column of data type DATE.
NLS_DATE_FORMAT is set to DD-MON-RR.
Which two are true about data type conversions involving these columns in query expressions? (Choose two.)
- A. invoie_date > '01-02-2019' : uses implicit conversion
- B. qty_sold = '0554982' uses implicit conversion
- C. CONCAT (qty_sold, invoice_date) : requires explicit conversion
- D. invoice_date = '15-march-2019' : uses implicit conversion
- E. qty_sold BETWEEN '101' AND '110' : uses implicit conversion
Answer: D,E
NEW QUESTION 67
Which two statements are true about the Automatic Diagnostic Repository (ADR)? (Choose two.)
- A. It supports diagnostics for Automatic Storage Management (ASM)
- B. The ADR base defaults to $ORACLE_HOME/dbs if the DIAGNOSTIC_DEST parameter and the ORACLE_BASE environment variable are not set
- C. It is held inside an Oracle database schema
- D. It supports diagnostics for Oracle Clusterware
- E. The ADR base defaults to $ORACLE_HOME/rdbms/admin if neither DIAGNOSTIC_DEST nor ORACLE_BASE is set
Answer: C,E
Explanation:
https://docs.oracle.com/cd/E11882_01/install.112/e27508/admin.htm
NEW QUESTION 68
You execute this command:
Sufficient storage is available in filesystem /u01.
Which two statements are true about the BIG_TBS tablespace? (Choose two.)
- A. AUTOEXTEND is possible for the datafile
- B. Additional data files may not be added
- C. It will be a dictionary-managed tablespace by default
- D. It will always have a 32K blocksize
- E. It must be bigger than the largest SMALLFILE tablespace
Answer: A,E
NEW QUESTION 69
Which three statements are true about time zones, date data types, and timestamp data types in an Oracle database? (Choose three.)
- A. The SESSIONTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
- 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. A TIMESTAMP WITH LOCAL TIMEZONE data type column is stored in the database using the time zone of the session that inserted the row
- E. The CURRENT_TIMESTAMP function returns data without time zone information
Answer: A,C,D
NEW QUESTION 70
Which three statements are true about a self join? (Choose three.)
- A. It must be an equijoin
- B. It must be an inner join
- C. The query must use two different aliases for the table
- D. The ON clause can be used
- E. It can be an outer join
- F. The ON clause must be used
Answer: C,D,E
NEW QUESTION 71
Which three statements are true about Oracle synonyms? (Choose three.)
- A. A synonym cannot be created for a PL/SQL package
- B. A SEQUENCE can have a synonym
- C. Any user can drop a PUBLIC synonym
- D. A synonym created by one user can refer to an object belonging to another user
- E. A synonym can be available to all users
Answer: B,D,E
Explanation:
Explanation/Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_7001.htm
NEW QUESTION 72
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 wee.
Which query can be used?
- A. SELECT emp_id, ADD_MONTHS(hire_date, 6), NEXT_DAY('MONDAY') FROM employees;
- B. SELECT emp_id, NEXT_DAY(MONTHS_BETWEEN(hire_date, SYSDATE), 6) FROM employees;
- C. SELECT emp_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), 1) FROM employees;
- D. SELECT emp_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), 'MONDAY') FROM employees;
Answer: D
NEW QUESTION 73
Which three statements are true about the DESCRIBE command? (Choose three.)
- A. It can be used only from SQL *Plus
- B. It can be used to display the structure of an existing view
- C. It displays all constraints that are defined for each column
- D. It displays the NOT NULL constraint for any columns that have that constraint
- E. It can be used from SQL Developer
- F. It displays the PRIMARY KEY constraint for any column or columns that have that constraint
Answer: A,B,D
NEW QUESTION 74
You want to apply the principle of Least Privilege in all your live databases.
One of your requirements is to revoke unnecessary privileges from all users who have them using Privilege Analysis.
Which three types of analyses can be done using the DBMS_PRIVILEGE_CAPTURE package? (Choose three.)
- A. analysis of privileges granted directly to a role that are then used by a user who has been granted that role
- B. analysis of all privileges used by all users but excluding administrative users in the database
- C. analysis of privileges that a user has on their own schema objects that they did use
- D. analysis of all privileges used by all users including administrative users in the database
- E. analysis of privileges granted indirectly to a role that are then used by a user who has been granted that role
- F. analysis of privileges that a user has on their own schema objects that they did not use
Answer: A,B,E
Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/19/dbseg/performing-privilege-analysis-find-privilege-use.html#GUID-AD683DDB-D345-4702-B1F4-37B79F276B66
NEW QUESTION 75
Which three statements are true about a self join? (Choose three.)
- A. It must be an equijoin
- B. The query must use two different aliases for the table
- C. It must be an inner join
- D. The ON clause can be used
- E. It can be an outer join
- F. The ON clause must be used
Answer: B,C,D
Explanation:
Explanation
NEW QUESTION 76
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. COLUMN STORE COMPRESS FOR QUERY LOW
- B. ROW STORE COMPRESS BASIC
- C. ROW STORE COMPRESS ADVANCED
- D. COLUMN STORE COMPRESS FOR ARCHIVE LOW
- E. COLUMN STORE COMPRESS FOR ARCHIVE HIGH
Answer: C
Explanation:
https://www.oracle.com/technetwork/database/options/compression/advanced-compression- wp-
12c-1896128.pdf
NEW QUESTION 77
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. Column positions must be used in the 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. Each SELECT statement in the compound query can have its own ORDER BY clause
- D. Each SELECT statement in the compound query must have its own ORDER BY clause
- E. Only column names from the first SELECT statement in the compound query are recognized
Answer: B,E
NEW QUESTION 78
Which two are true about complete recovery? (Choose two.)
- A. It is possible only when the database is in MOUNT state
- B. The database must have FLASHBACK enabled in order to perform it.
- C. Only RMAN backupsets can be used to restore a database as part of it.
- D. Incremental backups can be used to roll forward the database while performing it.
- E. Uncommitted transactions will be rolled back after it completes.
Answer: A,B
NEW QUESTION 79
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