Exam Name: Oracle Database Administration I (1z0-082 Korean Version)
Certification Provider: Oracle
Corresponding Certification: Oracle Database 19c
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What is the duration, language, and format of Oracle 1z0-082: Oracle Database Administration I Exam
- This exam consists of 90 questions.
- Section 2: 45%
- This exam is offered in only English.
- There is a time limit of 140 minutes for the exam.
- Certification Validity period : 3 years.
- Section 3: 33%
- The type of questions is Multiple Choice Questions.
- Section 1: 60%
- Passing score:
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.
Reference: https://education.oracle.com/oracle-database-administration-i/pexam_1Z0-082
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Oracle 1z0-082 Korean Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Using Subqueries to Solve Queries | - Use subqueries in the WHERE clause and HAVING clause - Define subqueries - Use single-row subqueries with single-row and multiple-row operators - Use multiple-row subqueries with multiple-row operators (IN, ANY, ALL) - Describe the types of subqueries (single-row, multi-row, multiple-column) - Use scalar subqueries in SQL |
| Topic 2: Managing Oracle Database Instances | - Start up and shut down an Oracle Database instance - Manage initialization parameter files (SPFILE, PFILE) - View the alert log and access dynamic performance views - Use the Automatic Diagnostic Repository (ADR) |
| Topic 3: Restricting and Sorting Data | - Use the NULL operators (IS NULL, IS NOT NULL) - Use the BETWEEN comparator - Use the LIKE and IN operators - Use the WHERE clause to limit retrieved rows - Use comparison operators and logical operators (AND, OR, NOT) - Sort data using the ORDER BY clause |
| Topic 4: Managing Schema Objects | - Manage sequences and synonyms - Create and modify tables - Create indexes and views - Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK) |
| Topic 5: Using Single-Row Functions to Customize Output | - Use character, number, and date functions in SELECT statements - Use CASE and DECODE for conditional expressions - Describe various types of functions available in SQL - Describe the use of conversion functions (TO_CHAR, TO_NUMBER, TO_DATE) |
| Topic 6: Managing Users, Roles, and Privileges | - Create and manage roles - Differentiate system privileges and object privileges - Create and manage database user accounts - Grant and revoke privileges |
| Topic 7: Displaying Data from Multiple Tables Using Joins | - Use CROSS joins - Use OUTER joins (LEFT, RIGHT, FULL) - Describe different types of joins and their features - Use Equijoins and Non-equijoins - Join a table to itself using self-join |
| Topic 8: Retrieving Data using the SQL SELECT Statement | - List the capabilities of SQL SELECT statements - Execute a basic SELECT statement - Use scalar and correlated subqueries - Describe how schema objects work - Use the ORDER BY clause - Use SQL row functions (character, number, date, conversion, general) |
| Topic 9: Using Conversion Functions and Conditional Expressions | - Apply the NVL, NULLIF, and COALESCE functions - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Use nested functions - Use the CAST function for data type conversion |
| Topic 10: Reporting Aggregated Data Using the Group Functions | - Use the GROUP BY clause to group data - Use the HAVING clause to filter grouped data - Describe group functions (AVG, SUM, MIN, MAX, COUNT) |
| Topic 11: Understanding Oracle Database Architecture - Database Storage Structures | - Manage space in tablespaces - Describe the logical and physical database structures - Describe tablespaces and data files - Create and manage tablespaces |
| Topic 12: Understanding Oracle Database Architecture - Oracle Database Instance | - Understand Oracle Database instance management - Describe the background processes - Explain the memory structures (SGA, PGA) |
| Topic 13: Managing Data in Different Time Zones | - Explain the concepts of time zones and daylight savings - Describe the use of datetime functions (CURRENT_DATE, EXTRACT, LOCALTIMESTAMP) - Use various datetime data types (DATE, TIMESTAMP, INTERVAL) |
| Topic 14: Introduction to Oracle Database | - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others) - Describe Oracle Database Cloud Service (DBCS) architecture and features - Explain database storage structures (data blocks, segments, tablespaces, data files) - Describe Oracle Database instance and memory structures - Describe Oracle Database architecture - Explain Oracle Database server architecture |
| Topic 15: Using the Set Operators | - Describe set operators (UNION, UNION ALL, INTERSECT, MINUS) - Use set operators to combine multiple queries into a single query |
| Topic 16: Working with Oracle Cloud Exadata Express Cloud Service | - 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 - Navigate the Exadata Express Cloud Service console |
Oracle Database Administration I (1z0-082 Korean Version) Sample Questions:
비동등조인 문 성능에 대한 설명으로 옳지 않은 것은? (두 가지를 선택하세요.)
- A. Oracle 조인 구문은 SQL:1999 호환 ANSI 조인 구문보다 성능이 좋습니다.
- B. 테이블 별칭은 성능을 향상시킬 수 있습니다.
- C. 사용된 조인 구문은 성능에 차이가 없습니다.
- D. BETWEEN 조건은 >= 및 <= 조건을 사용하는 것보다 항상 성능이 좋습니다.
- E. BETWEEN 조건은 항상 >= 및 <= 조건을 사용하는 것보다 성능이 떨어집니다.
Correct Answer: A,B 🗳️
2019년 1월 1일부터 오늘까지의 일수를 계산해야 합니다.
날짜는 기본 형식인 일-월-일(DD-MON-RR)로 저장됩니다.
원하는 결과를 출력하는 쿼리는 다음 두 가지 중 어느 것입니까? (두 가지를 선택하십시오.)
- A. SELECT SYSDATE ?TO_DATE('01-JANUARY-2019') FROM DUAL;
- B. SELECT ROUND(SYSDATE ?TO_DATE(`01/JANUARY/2019')) FROM DUAL;
- C. SELECT TO_DATE(SYSDATE, `DD/MONTH/YYYY') ?`01/JANUARY/2019' FROM DUAL;
- D. SELECT TO_CHAR(SYSDATE, `DD-MON-YYYY') ?'01-JAN-2019' FROM DUAL;
- E. SELECT ROUND(SYSDATE ?'01-JAN-2019') FROM DUAL;
Correct Answer: D,E 🗳️
다음 명령어를 실행합니다.
작은 파일 테이블 공간 생성 판매
데이터 파일 `/u01/app/oracle/sales01.dbf`
크기 5g
세그먼트 공간 관리 자동;
SALES 테이블스페이스에 대한 다음 두 가지 설명 중 맞는 것은 무엇입니까? (두 가지를 선택하십시오.)
- A. 여유 공간은 프리리스트를 사용하여 관리됩니다.
- B. 테이블스페이스에 추가되는 모든 데이터 파일은 5기가바이트 크기여야 합니다.
- C. 로컬에서 관리되는 테이블스페이스입니다.
- D. 데이터베이스의 기본 블록 크기를 사용합니다.
- E. 가장 작은 BIGFILE 테이블스페이스보다 작아야 합니다.
Correct Answer: C,D 🗳️
자동 진단 저장소(ADR)에 대한 설명으로 옳은 것은 무엇입니까?
- A. Oracle 데이터베이스 스키마 내부에 보관됩니다.
- B. Oracle 데이터베이스 진단 정보에만 사용됩니다.
- C. ADR 기반이 diagnostic_dest 데이터베이스 매개변수에 지정되어 있습니다.
- D. 데이터베이스의 인스턴스가 다운되었을 때 데이터베이스의 문제 진단에 사용할 수 있습니다.
- E. 데이터베이스 외부에 있는 파일 기반 저장소입니다.
Correct Answer: A,C,E 🗳️
논리적 및 물리적 데이터베이스 구조에 관한 다음 설명 중 옳은 세 가지는 무엇입니까? (세 가지를 선택하십시오.)
- A. 스몰파일 테이블스페이스가 빅파일 테이블스페이스보다 클 수도 있습니다.
- B. 세그먼트는 여러 테이블스페이스에 걸쳐 있을 수 있습니다.
- C. 일부 테이블스페이스에서는 세그먼트가 여러 데이터 파일에 걸쳐 있을 수 있습니다.
- D. 모든 테이블스페이스에는 하나 이상의 데이터 파일이 있을 수 있습니다.
- E. 세그먼트는 하나의 범위만 가질 수 있습니다.
- F. 세그먼트의 블록은 크기가 다를 수 있습니다.
- G. 세그먼트의 범위는 항상 동일한 데이터 파일에 있어야 합니다.
Correct Answer: A,B,E 🗳️
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