Top 10 Interview Questions - Detailed Guide for Oracle Database Administrator Certification

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Free Demo Questions For Oracle Database Administrator Interview

Question 1: What Exactly is an Oracle?

Oracle is a database service that manages data in a very organized manner. It allows users to save and retrieve relevant data in a multi-user environment, allowing multiple users to access the same data at the same time.

Question 2: Explain Oracle Database and its Role.
An Oracle database is a collection of data that is treated as a whole. It is used to store and retrieve related data. A database server is critical in resolving information management issues.

Question 3: What are the advantages of ORDBMS?
The objects themselves can be stored in the database. The DBMS language is analogous to an object-oriented programming language.

Question 4: What are the functions of a DBA?
DBA adds new users, deletes existing users, or changes any environment variables or privileges assigned to other users.

1. Manage database storage
2. Clients and security are regulated
3. Organize outline objects
4. Database performance should be monitored and managed

Question 5: Explain the difference between the data types varchar and varchar2.
Varchar

1. It can hold up to 2000 bytes.
2. It takes up space for a NULL value.

varchar2

1. It has a storage capacity of up to 4000 bytes.
2. It will not take up any space.

Question 6: What policy is required to be in an API if that API is to be used under a Plan?
A. Notification
B. Metadata
C. Orchestration
D. Map Data
Answer: C,D

Question 7: Which four Client Software Libraries can be used for developing applications with Oracle Internet of Things (IoT) Cloud Service?
A. C POSIX
B. Java SE
C. .NET
D. JavaScript
E. Android
F. VB Script
Answer: ABDE

Question 8: What policy is required to be in an API if that API is to be used under a Plan?
A. Application Rate Limiting
B. BaiscAuth
C. Key Validation
D. Interface Filtering 
Answer: C

Question 9: What is the "Decision Table" in Business Rules in Process Cloud Service?
 A decision matrix that organizes if/then rules into a spreadsheet-like format, where rows represent conditions and actions, and columns match condition values to action alternatives.

Question 10: What are the correct steps involved in Business process creation in Process Cloud Service?
First Create a process > assign roles to the process; Design the flow; Configure flow element properties; Define the data and then Associate the data.