Amazon Web Services Project Trainee Engineer Interview Questions and Answers

It is 3 section test. First section aptitude, english and logical reasoning. Second section is coding round. Third section is essay round. Cut off of every section is 70%.

Q1. Tell me something about yourself
Add your answer
Q2. Tell me about your final year project
Add your answer
Q3. What technology you use in this project
Add your answer
Q4. What is your role in this project
Add your answer
Q5. What is encapsulation
Ans. 
Encapsulation is the process of hiding implementation details and exposing only necessary information.
• Encapsulation is a fundamental concept in object-oriented programming.

• It helps in achieving data abstraction and information hiding.

• It allows for better control over the data and prevents unauthorized access.

• Encapsulation is achieved through the use of access modifiers such as public, private, and protected.

• For example...read more
Answered by AI
Add your answer
Q6. What is function overloading
Ans. 
Function overloading is the ability to have multiple functions with the same name but different parameters.
• Function overloading allows a function to perform different tasks based on the number and types of parameters passed to it.

• It helps in writing cleaner and more readable code.

• Example: void print(int x), void print(float x), void print(char x) are all overloaded functions with the same name but different parameter t
Answered by AI
Add your answer
Q7. Difference between function overloading and function Overwriting
Ans. 
Function overloading is having multiple functions with the same name but different parameters. Function overwriting is replacing a function with a new one.
• Function overloading is used to provide multiple ways to call a function with different parameters.

• Function overwriting is used to replace a function with a new implementation.

• Function overloading is resolved at compile-time based on the number and types of arguments...read more
Answered by AI
Add your answer
Q8. What is normalization
Ans. 
Normalization is the process of organizing data in a database to reduce redundancy and dependency.
• Normalization helps in improving data consistency and accuracy

• It involves breaking down a table into smaller tables and defining relationships between them

• Normalization is achieved through a series of normal forms, such as first normal form (1NF), second normal form (2NF), and so on

• Normalization can prevent data anomalies,...read more
Answered by AI
Add your answer
Q9. What is ACID properties
Ans. 
ACID properties are a set of properties that ensure database transactions are processed reliably.
• ACID stands for Atomicity, Consistency, Isolation, and Durability

• Atomicity ensures that a transaction is treated as a single, indivisible unit of work

• Consistency ensures that a transaction brings the database from one valid state to another

• Isolation ensures that concurrent transactions do not interfere with each other

• Durabi...read more
Answered by AI
Add your answer
Q10. Define DDL, DCL, DML
Ans. 
DDL, DCL, and DML are three types of SQL commands used to manipulate databases.
• DDL (Data Definition Language) is used to define the structure of the database schema, such as creating tables, altering tables, and dropping tables.

• DCL (Data Control Language) is used to control access to the database, such as granting or revoking permissions.

• DML (Data Manipulation Language) is used to manipulate data within the database, s...read more
Answered by AI
Add your answer