1Z1-082 Prüfungsfragen, 1Z1-082 Fragen und Antworten, Oracle Database Administration I

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Oracle 1Z1-082 Exam Syllabus Topics:

Section	Objectives
Topic 1: Restricting and Sorting Data	- Use the BETWEEN comparator - Use the WHERE clause to limit retrieved rows - Use the LIKE and IN operators - Use comparison operators and logical operators (AND, OR, NOT) - Sort data using the ORDER BY clause - Use the NULL operators (IS NULL, IS NOT NULL)
Topic 2: Retrieving Data using the SQL SELECT Statement	- Execute a basic SELECT statement - List the capabilities of SQL SELECT statements - Use the ORDER BY clause - Use SQL row functions (character, number, date, conversion, general) - Use scalar and correlated subqueries - Describe how schema objects work
Topic 3: 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 4: Using Subqueries to Solve Queries	- Use scalar subqueries in SQL - Describe the types of subqueries (single-row, multi-row, multiple-column) - Define subqueries - Use subqueries in the WHERE clause and HAVING clause - Use multiple-row subqueries with multiple-row operators (IN, ANY, ALL) - Use single-row subqueries with single-row and multiple-row operators
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 the use of conversion functions (TO_CHAR, TO_NUMBER, TO_DATE) - Describe various types of functions available in SQL
Topic 6: Managing Users, Roles, and Privileges	- Create and manage roles - Create and manage database user accounts - Differentiate system privileges and object privileges - Grant and revoke privileges
Topic 7: Managing Schema Objects	- Manage constraints (NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK) - Create indexes and views - Manage sequences and synonyms - Create and modify tables
Topic 8: Using Conversion Functions and Conditional Expressions	- Apply the NVL, NULLIF, and COALESCE functions - Use nested functions - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Use the CAST function for data type conversion
Topic 9: Understanding Oracle Database Architecture - Database Storage Structures	- Create and manage tablespaces - Manage space in tablespaces - Describe the logical and physical database structures - Describe tablespaces and data files
Topic 10: Managing Data in Different Time Zones	- Use various datetime data types (DATE, TIMESTAMP, INTERVAL) - Explain the concepts of time zones and daylight savings - Describe the use of datetime functions (CURRENT_DATE, EXTRACT, LOCALTIMESTAMP)
Topic 11: 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 12: Using the Set Operators	- Describe set operators (UNION, UNION ALL, INTERSECT, MINUS) - Use set operators to combine multiple queries into a single query
Topic 13: Understanding Oracle Database Architecture - Oracle Database Instance	- Describe the background processes - Understand Oracle Database instance management - Explain the memory structures (SGA, PGA)
Topic 14: Displaying Data from Multiple Tables Using Joins	- Use Equijoins and Non-equijoins - Describe different types of joins and their features - Use CROSS joins - Join a table to itself using self-join - Use OUTER joins (LEFT, RIGHT, FULL)
Topic 15: Working with Oracle Cloud Exadata Express Cloud Service	- Provision and manage an Exadata Express Cloud Service instance - Identify the prerequisites for Exadata Express Cloud Service - Navigate the Exadata Express Cloud Service console - Describe the features and benefits of Exadata Express Cloud Service
Topic 16: Introduction to Oracle Database	- Explain Oracle Database server architecture - Describe Oracle processes (PMON, SMON, DBWn, LGWR, CKPT, others) - Explain database storage structures (data blocks, segments, tablespaces, data files) - Describe Oracle Database architecture - Describe Oracle Database Cloud Service (DBCS) architecture and features - Describe Oracle Database instance and memory structures

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Oracle Database Administration I 1Z1-082 Prüfungsfragen mit Lösungen (Q99-Q104):

99. Frage
Evaluate these commands which execute successfully:

Which two statements are true about the ORD_ITEMS table and the ORD_SEQ sequence? (Choose two.)

A. If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS
B. 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
C. Sequence ORD_SEQ is guaranteed not to generate duplicate numbers
D. Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times
E. Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ

Antwort: B,E

100. Frage
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;

Antwort: A

101. Frage
Table EMPLOYEES contains columns including EMPLOYEE_ID, JOB_ID and SALARY.
Only the EMPLOYEE_ID column is indexed.
Rows exist for employees 100 and 200.
Examine this statement:

Which two statements are true? (Choose two.)

A. Employees 100 and 200 will have the same SALARY as before the update command
B. Employee 200 will have SALARY set to the same value as the SALARY of employee 100
C. Employee 100 will have SALARY set to the same value as the SALARY of employee 200
D. Employees 100 and 200 will have the same JOB_ID as before the update command
E. Employee 200 will have JOB_ID set to the same value as the JOB_ID of employee 100
F. Employee 100 will have JOB_ID set to the same value as the JOB_ID of employee 200

Antwort: C,E

102. Frage
Examine this command and some partial output:

Why does the DB01.abc.com service show unknown status?

A. The LOCAL_LISTENER database parameter is not set to a service name that refers to LISTENER_1
B. The SID_LIST_LISTENER section is not contained in the LISTENER.ORA file
C. The listener is not listening on the default port 1521
D. The service DB01.abc.com is statically registered
E. The service DB01.abc.com is dynamically registered

Antwort: A

103. Frage
Table EMPLOYEES contains columns including EMPLOYEE_ID, JOB_ID and SALARY.
Only the EMPLOYEE_ID column is indexed.
Rows exist for employees 100 and 200.
Examine this statement:

Which two statements are true? (Choose two.)

A. Employee 100 will have JOB_ID set to the same value as the JOB_ID of employee 200
B. Employees 100 and 200 will have the same SALARY as before the update command
C. Employee 200 will have SALARY set to the same value as the SALARY of employee 100
D. Employee 100 will have SALARY set to the same value as the SALARY of employee 200
E. Employee 200 will have JOB_ID set to the same value as the JOB_ID of employee 100
F. Employees 100 and 200 will have the same JOB_ID as before the update command

Antwort: A,D

104. Frage
......

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