Oracle Entry-Level Interview Questions

Here is a quick and informal assessment quiz to evaluate the foundational knowledge and skills of candidates aspiring to start their careers in Oracle technologies. This assessment focuses on core database concepts, SQL proficiency, and an understanding of Oracle tools. Let's get right at it!

1 / 20

Which of the following package procedure is UNRESTRICTED in Oracle?

EXECUTE_QUERY

CLEAR_BLOCK

CALL_INPUT

USER_EXIT

2 / 20

The size and content of the PGA (Program Global Area) are independent of the Oracle server options installed. True or False?

True

False

3 / 20

Which processes is an instance made of Oracle?

Memory processes

Oracle background processes

Data processes

All of the Mentioned

4 / 20

Which of the following is not a Key in SQL Server?

Alternate

Foreign

Secondary

Primary

5 / 20

What is the result of the following "ORA’NULL’CLE"?

ORA CLE

ORACLE

NULL

ERROR

6 / 20

Which of the following keyword is used with Data Control Language (DCL) statements?

GRANT

SELECT

DELETE

INSERT

7 / 20

Which of these is not a type of backup in Oracle?

COLD Backup

FILE Backup

HOT Backup

RMAN Backup

8 / 20

Which of the following is another name of Oracle database’s design?

Database Schema

Database Abstraction

Database Instance

None of the Mentioned

9 / 20

Which schema object instructs Oracle to connect to remotely access an object of a database?

Remote Link

Data Link

Sequence

Database Link

10 / 20

Which of the following commands is used to obtain the structure of an Oracle table?

STRUCTURE [TableName].

DESCRIBE STRUCTURE [TableName].

DESC TABLE [TableName].

DESCRIBE [TableName].

11 / 20

Which of the following is not a type of join?

Inner

Spin

Outer

Equi

12 / 20

Which of the following is referred to as the language used application programs to request data from the DBMS?

Query language

DDL

DML

None of the above

13 / 20

The redo log buffer and Shared pool are elements of?

Buffer cache

SGA

PGA

PGA and Buffer cache

14 / 20

What is the result of the following ‘ORA’NULL’CLE’?

Error

ORACLE

NULL

ORA CLE

15 / 20

You can add a datafile to a tablespace by using the ALTER TABLESPACE ADD DATAFILE SIZE; statement. True or False?

True

False

16 / 20

Which of the following is a disadvantage of the Oracle database?

Cost

Complexity

Difficult to manage

All of the above

17 / 20

Which of the following is the oldest database model?

Physical

Deductive

Relational

Network

18 / 20

Which of the following components comprise an Oracle architecture?

Database related background processes

Tablespaces

Datafiles

All of the above-mentioned

19 / 20

Which of the following is record based logical model?

Object oriented model

Network Model

E-R Model

None of the above

20 / 20

Which of the following is correct about Oracle?

OracleDB is another name for it

Oracle is a relational database management system

Oracle was built in 1977

All of the above-mentioned

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