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Cognizant AWS Cloud Engineer Interview Questions and Answers
Cognizant AWS Cloud Engineer Interview Experiences
2 interviews found
Anonymous
I applied via Naukri.com and was interviewed in Oct 2021. There were 4 interview rounds.
Interview Questionnaire
3 Questions
- Q1. AWS lambda, snowflake
- Q2. How to setup ETL on cloud
- Ans.
ETL on cloud can be setup using AWS Glue or third-party tools like Talend, Matillion, etc.
Choose a cloud-based ETL tool based on your requirements
Create a data pipeline to extract data from source systems
Transform the data using the ETL tool's built-in functions or custom scripts
Load the transformed data into a target data store like S3, Redshift, etc.
Schedule the ETL jobs to run at regular intervals
Monitor the ETL job
- Q3. Different components of ETL
- Ans.
ETL components include extraction, transformation, and loading of data.
Extraction involves retrieving data from various sources such as databases, APIs, and files.
Transformation involves cleaning, filtering, and manipulating the data to fit the target system.
Loading involves inserting the transformed data into the target system such as a data warehouse or database.
Examples of ETL tools include Apache NiFi, Talend, and
Interview Preparation Tips
Skills evaluated in this interview
I applied via Company Website and was interviewed in May 2022. There were 2 interview rounds.
Python
Interview Preparation Tips
- AWS
Interview questions from similar companies
I applied via Naukri.com and was interviewed in Oct 2020. There was 1 interview round.
Interview Questionnaire
3 Questions
- Q1. What is second level cache?How to implement second level cache?How to optimize sql query?what are solid principles?
- Ans.
Second level cache is a caching mechanism used to improve performance by storing frequently accessed data in memory.
Second level cache is implemented at the application level and can be configured using frameworks like Hibernate.
To optimize SQL queries, one can use indexes, avoid using SELECT *, and use JOINs instead of subqueries.
SOLID principles are a set of design principles for writing maintainable and scalable cod...
- Q2. Mostly FAQ but somewhat in depth?
- Q3. How to deploy application in aws?
- Ans.
To deploy an application in AWS, you need to create an EC2 instance, configure security groups, install necessary software, and upload your application code.
Create an EC2 instance in the desired region and select the appropriate instance type
Configure security groups to allow traffic to and from the instance
Install necessary software and dependencies on the instance
Upload your application code to the instance
Start the ...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Company Website and was interviewed before Aug 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. What is my longterm and short-term goals.
- Ans. My short-term is to become an expert in solving queries And long term is to become valuable employee in an organisation and managing a team, also helping new recruits to learn the work.
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Dec 2020. There were 4 interview rounds.
Interview Questionnaire
2 Questions
- Q1. THERE WERE 4 ROUNDS.1-APTITUDE 2-PSEUDO TEST 2-TECHNICAL INTERVIEW 4-HR ROUND
- Q2. 1ST ROUND WAS VERY SIMPLE 2ND WAS LITTLE COMPLEX 3RD&4TH ROUND WAS VERY SIMPLE
Interview Preparation Tips
I applied via Recruitment Consulltant and was interviewed before Jun 2021. There was 1 interview round.
(2 Questions)
- Q1. Where do we use BigInteger in java ?
- Ans.
BigInteger is used for mathematical operations involving very large integers in Java.
BigInteger is used when the range of values supported by primitive data types like int and long is not sufficient.
It is commonly used in cryptography and security applications.
It provides methods for arithmetic, bitwise, and logical operations on large integers.
Example: calculating factorial of a large number, generating large prime nu
- Q2. Merge Sort Algo code in java
- Ans.
Merge Sort Algo code in java
Divide the array into two halves
Recursively sort the two halves
Merge the sorted halves
Time complexity: O(n log n)
Interview Preparation Tips
- Core Java
- DSA
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Feb 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. In and out of project. How bucketing concept works. Data localisation in Hadoop. Persistence in spark.
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Java collection
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Indexes, union and union all, data warehousing questions
I applied via Naukri.com and was interviewed in Aug 2020. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. Interfaces
- Q2. Oop concepts
Interview Preparation Tips
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