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What is the duration, language, and format of Oracle 1z0-082: Oracle Database Administration I Exam
- Certification Validity period : 3 years.
- Section 3: 33%
- Section 2: 45%
- The type of questions is Multiple Choice Questions.
- Section 1: 60%
- This exam consists of 90 questions.
- Passing score:
- This exam is offered in only English.
- There is a time limit of 140 minutes for the exam.
Oracle database certifications require periodic recertification. To hold your certification inactive condition, you must update to the new edition within 1 year of Oracle's credential withdrawal.
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How to Study the Oracle 1z0-082: Oracle Database Administration I Exam
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Oracle 1Z0-082 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Managing Oracle Database Instances | - Use the Automatic Diagnostic Repository (ADR) - Start up and shut down an Oracle Database instance - View the alert log and access dynamic performance views - Manage initialization parameter files (SPFILE, PFILE) |
| Introduction to Oracle Database | - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others) - Describe Oracle Database architecture - Describe Oracle Database instance and memory structures - Explain Oracle Database server architecture - Explain database storage structures (data blocks, segments, tablespaces, data files) - Describe Oracle Database Cloud Service (DBCS) architecture and features |
| Managing Users, Roles, and Privileges | - Create and manage database user accounts - Differentiate system privileges and object privileges - Grant and revoke privileges - Create and manage roles |
| Understanding Oracle Database Architecture - Oracle Database Instance | - Explain the memory structures (SGA, PGA) - Describe the background processes - Understand Oracle Database instance management |
| Using the Set Operators | - Use set operators to combine multiple queries into a single query - Describe set operators (UNION, UNION ALL, INTERSECT, MINUS) |
| Displaying Data from Multiple Tables Using Joins | - Describe different types of joins and their features - Use OUTER joins (LEFT, RIGHT, FULL) - Join a table to itself using self-join - Use CROSS joins - Use Equijoins and Non-equijoins |
| Managing Data in Different Time Zones | - Explain the concepts of time zones and daylight savings - Use various datetime data types (DATE, TIMESTAMP, INTERVAL) - Describe the use of datetime functions (CURRENT_DATE, EXTRACT, LOCALTIMESTAMP) |
| Using Subqueries to Solve Queries | - Describe the types of subqueries (single-row, multi-row, multiple-column) - Use multiple-row subqueries with multiple-row operators (IN, ANY, ALL) - Define subqueries - Use single-row subqueries with single-row and multiple-row operators - Use subqueries in the WHERE clause and HAVING clause - Use scalar subqueries in SQL |
| Restricting and Sorting Data | - Use the LIKE and IN operators - Sort data using the ORDER BY clause - Use the BETWEEN comparator - Use the WHERE clause to limit retrieved rows - Use comparison operators and logical operators (AND, OR, NOT) - Use the NULL operators (IS NULL, IS NOT NULL) |
| Working with Oracle Cloud Exadata Express Cloud Service | - Navigate the Exadata Express Cloud Service console - Identify the prerequisites for Exadata Express Cloud Service - Provision and manage an Exadata Express Cloud Service instance - Describe the features and benefits of Exadata Express Cloud Service |
| Using Single-Row Functions to Customize Output | - Describe the use of conversion functions (TO_CHAR, TO_NUMBER, TO_DATE) - Use CASE and DECODE for conditional expressions - Describe various types of functions available in SQL - Use character, number, and date functions in SELECT statements |
| Managing Schema Objects | - Create indexes and views - Create and modify tables - Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK) - Manage sequences and synonyms |
| Retrieving Data using the SQL SELECT Statement | - Use scalar and correlated subqueries - Use SQL row functions (character, number, date, conversion, general) - Execute a basic SELECT statement - List the capabilities of SQL SELECT statements - Describe how schema objects work - Use the ORDER BY clause |
| Using Conversion Functions and Conditional Expressions | - Use nested functions - Use the CAST function for data type conversion - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Apply the NVL, NULLIF, and COALESCE functions |
| Understanding Oracle Database Architecture - Database Storage Structures | - Create and manage tablespaces - Describe the logical and physical database structures - Manage space in tablespaces - Describe tablespaces and data files |
| Reporting Aggregated Data Using the Group Functions | - Use the HAVING clause to filter grouped data - Describe group functions (AVG, SUM, MIN, MAX, COUNT) - Use the GROUP BY clause to group data |
Oracle Database Administration I Sample Questions:
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 fails and returns the error message "ORA-30036: unable to extend segment by 8 in undo tablespace 'UNDOTBS1'".
- 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 succeeds and the least recently written undo block of UNDOTBS1 is overwritten by the generated undo.
- E. It succeeds and the generated undo is stored in SYSAUX.
Correct Answer: D 🗳️
Which three statements are true about connection strings and service names used to connect to an Oracle database instance?
- A. A single connection string can refer to multiple database instances.
- B. A service name is created by a listener.
- C. A connection string must include the SID of a database Instance.
- D. Different connection strings in the same tnsnames.ora file can contain the same service name, host and port parameters.
- E. A connection string including a service name must be defined in the cnsnames.ora file.
- F. A single database instance can support connections for multiple service names.
Correct Answer: A,D,F 🗳️
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 "Last Name"
- B. ORDER BY CUST_NO
- C. ORDER BY 2, 1
- D. ORDER BY "CUST_NO"
- E. ORDER BY 2, cust_id
Correct Answer: A,C,E 🗳️
In the promotions table, the PROMO_BEGIN_DATE column is of data type date and the default date format Is DD-MON-RR.
h two statements are true about expressions using PROMO_BEGIN_DATE contained In a query?
- A. PROMO_ BEGIN_DATE - sysdate will return a number.
- B. PROMO_ BEGIN_DATE - 5 will return a date.
- C. PROMO_ BEGIN_DATE - sysdate will return an error.
- D. to_numberipromo_begin_date) - s will return a number.
- E. TO_date(PROMO_ BEGIN_DATE * 5| will return a date.
Correct Answer: B,C 🗳️
Examine the description of the PROMOTIONS table:
You want to display the unique promotion costs in each promotion category.
Which two queries can be used? (Choose two.)
- A. SELECT DISTINCT promo_cost || ' in ` || DISTINCT promo_category FROM promotions ORDER BY 1;
- B. SELECT promo_cost, promo_category FROM promotions ORDER BY by 1;
- C. SELECT promo_category, DISTINCT promo_cost FROM promotions ORDER BY 2;
- D. SELECT DISTINCT promo_category || ` has ` || promo_cost AS COSTS FROM promotions ORDER BY 1;
- E. SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1;
Correct Answer: C,E 🗳️
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