60 Intellipaat Interview Questions and Answers | HR, Technical & Aptitude Prep

20 common asked question in every interview

AWS

Ques:- How can you secure data in transit and at rest in AWS?

Asked In :- TRICON INFOTECH PVT, Cloud Kinetics Technology Solutions, Happiest Minds Technologies Pvt., Tredence Analytics Solutions, Angular Minds, Zentron Labs, HashRoot Technologies, Sarvaha Systems, Xoriant Solutions, CodeCraft Technologies,

Right Answer:

To secure data in transit in AWS, use SSL/TLS for encryption during transmission and implement VPNs or AWS Direct Connect for secure connections. To secure data at rest, use AWS services like S3 Server-Side Encryption, EBS encryption, and RDS encryption, along with IAM policies to control access.

AWS

Ques:- What is AWS CLI?

Asked In :- Hidden Brains InfoTech, EdgeVerve Systems, AHEX TECHNOLOGIES, ProMobi Technologies, Sarvaha Systems, Aruba Networks, Cimpress India, The Unified Cloud, Bristlecone India, Infomats Technologies,

Right Answer:

AWS CLI (Amazon Web Services Command Line Interface) is a tool that allows users to interact with AWS services using command-line commands instead of the web-based console.

AWS

Ques:- What are spot instances?

Asked In :- Hidden Brains InfoTech, Cloud Kinetics Technology Solutions, AHEX TECHNOLOGIES, HashRoot Technologies, Mundrisoft Solutions LLP, Atidan Technologies, Cimpress India, ThinkSys Software, Surya Software, Infiniti Software Solutions,

Right Answer:

Spot instances are a type of Amazon EC2 instance that allows you to bid on unused computing capacity at potentially lower prices than on-demand instances. They can be interrupted by AWS with little notice if the capacity is needed for on-demand instances.

AWS

Ques:- What is the difference between Public and Private Subnet?

Asked In :- TRICON INFOTECH PVT, Fission Infotech, AHEX TECHNOLOGIES, Angular Minds, Aruba Networks, Atidan Technologies, Diya Systems (Mangalore), Zenon, Surya Software, Vanilla Networks,

Right Answer:

A Public Subnet is a subnet that has a route to the internet through an Internet Gateway, allowing resources within it to be accessed from the internet. A Private Subnet, on the other hand, does not have a direct route to the internet, meaning resources in it cannot be accessed directly from the internet.

AWS

Ques:- How is Elastic Beanstalk different from CloudFormation?

Asked In :- Fission Infotech, Happiest Minds Technologies Pvt., Tredence Analytics Solutions, Zentron Labs, ProMobi Technologies, Cimpress India, PrimeSoft Solutions, Quess Corp, Innodata, Zenon,

Right Answer:

Elastic Beanstalk is a platform-as-a-service (PaaS) that simplifies application deployment and management, automatically handling infrastructure provisioning, load balancing, and scaling. CloudFormation, on the other hand, is an infrastructure-as-code (IaC) service that allows you to define and provision AWS resources using templates, giving you more control over the infrastructure setup but requiring more manual configuration.

Data Warehouse Developer DB Architecture

Ques:- How can I go “back” in a slide show like I do in my browser?

Asked In :- Technostacks Infotech, bim, suyati technologies, intellipaat,

Data Warehouse Developer Oracle

Ques:- Any work done in Oracle Workflow builder. Did you customize or build a new workflow.

Asked In :- intellipaat,

Data Warehouse Developer DB Architecture

Ques:- How do I insert ClipArt?

Asked In :- pure storage, zocdoc, intellipaat,

Data Warehouse Developer MySQL

Ques:- What are the difference between Functions/Stored Procs and Triggers and where are they used.

Asked In :- Neosoft Technologies Pvt Ltd, intellipaat,

Data Warehouse Developer DB Architecture

Ques:- Can I use the SHOW menu to remove revisions from a document?

Asked In :- goodix technology inc., intellipaat,

Data Modelling Project Leader/ Project Manager

Ques:- Difference between DWH and Data mart, Difference between views and materialized views. What is Indexing and which kind of Indexing Technique we use in

Asked In :- Valued Epistemics, CropIn Technology Solutions, Smart Cube India, Verticurl Marketing, Estuate, Sarjen Systems, Propel, OfBusiness, Gaian Solutions India, TekLink International,

Right Answer:
**Difference between DWH and Data Mart:**
- A Data Warehouse (DWH) is a centralized repository that stores large volumes of data from multiple sources for analysis and reporting. A Data Mart is a subset of a Data Warehouse, focused on a specific business area or department.

**Difference between Views and Materialized Views:**
- A View is a virtual table that provides a way to present data from one or more tables without storing it physically. A Materialized View, on the other hand, stores the result of a query physically, allowing for faster access at the cost of needing to refresh the data periodically.

**Indexing:**
- Indexing is a database optimization technique that improves the speed of data retrieval operations on a database table. Common indexing techniques include B-tree indexing, hash indexing, and bitmap indexing.

Data Modelling Database Architect/ Designer

Ques:- Is this statement TRUE or FALSE ? all databases must be in third normal form?

Asked In :- Ray Business Technologies, DecisionTree Analytics and Services, Educe Solutions, Smart Cube India, Cohere, ABN AMRO, DataCore, Sarjen Systems, UIDAI, Salesforce Marketing Cloud,

Right Answer:
FALSE

Data Modelling Database Architect/ Designer

Ques:- Waht is second normal form

Asked In :- sciative, TriSys, EPFO, iOPEX, Quantile, Prodapt SA, Icon Resources, Mystifly, PromptCloud, Infometry,

Right Answer:
Second Normal Form (2NF) is a database normalization level where a table is in First Normal Form (1NF) and all non-key attributes are fully functionally dependent on the entire primary key, meaning there are no partial dependencies on a composite primary key.

Data Modelling Database Administrator (dba)

Ques:- What is the difference between joins and scope relationship?

Asked In :- Energytech Global, Code Insight Technologies, Apttus Software, Cohere, EPFO, Estuate, FACTENTRY DATA SOLUTIONS, Icon Resources, OfBusiness, Savantis,

Right Answer:
Joins are used to combine rows from two or more tables based on a related column, while scope relationships define how data is related within a single table or between tables in terms of hierarchy or context, often influencing data visibility and access.

Data Modelling Project Leader/ Project Manager

Ques:- What is the difference between star flake and snow flake schema?

Asked In :- Hidden Brains InfoTech, APPS Associates Pvt., Promantia Consulting LLP, Verticurl Marketing, Polestar Solutions & Services India LLP, Solix Technologies, Inc, DMZ, GrapeCity, NRSC National Remote Sensing Centre, Sarjen Systems,

Right Answer:
The star schema has a central fact table connected directly to multiple dimension tables, resembling a star shape. The snowflake schema, on the other hand, normalizes dimension tables into multiple related tables, creating a more complex structure that resembles a snowflake.

Data Warehouse Developer Etl

Ques:- What is a staging area? Do we need it? What is the purpose of a staging area?

Asked In :- Estuate, jasmin infotech pvt ltd, snaplogic, intellipaat,

Data Warehouse Developer Etl

Ques:- How to fine tune the mappings?

Asked In :- Velocity Software Solutions, Solix Technologies, Inc, PrimeSoft Solutions, FACTENTRY DATA SOLUTIONS, PromptCloud, EvolveWare, MyDBOPS, Sigma Computing Solutions, Snowflake, intellipaat,

Right Answer:
To fine-tune the mappings in ETL processes, you can:

1. **Optimize Source Queries**: Ensure that source queries are efficient and only retrieve necessary data.
2. **Use Incremental Loads**: Implement incremental loading to process only new or changed data.
3. **Reduce Data Volume**: Filter out unnecessary columns and rows early in the process.
4. **Leverage Pushdown Optimization**: Push transformations to the source database when possible to reduce data movement.
5. **Optimize Transformations**: Simplify complex transformations and use efficient functions.
6. **Monitor Performance**: Use performance monitoring tools to identify bottlenecks and optimize accordingly.
7. **Parallel Processing**: Utilize parallel processing to improve throughput.
8. **Indexing**: Ensure proper indexing on source and target tables to speed up data retrieval and loading.

Data Warehouse Developer Etl

Ques:- What is Full load & Incremental or Refresh load?

Asked In :- Infoworks (CA), intellipaat,

Right Answer:
Full load refers to the process of loading all the data from the source system into the data warehouse, replacing any existing data. Incremental or refresh load, on the other hand, involves loading only the new or changed data since the last load, thereby updating the existing data without replacing everything.

Data Warehouse Developer Etl

Ques:- What is partitioning? What are the types of partitioning?

Asked In :- Rudder Analytics, Omega Healthcare, DAG, zaloni, intellipaat, phdata, inc.,

Right Answer:
Partitioning is the process of dividing a large database table into smaller, more manageable pieces, called partitions, while still treating it as a single table. The main types of partitioning are:

1. **Range Partitioning**: Divides data based on a specified range of values.
2. **List Partitioning**: Divides data based on a list of values.
3. **Hash Partitioning**: Distributes data across partitions based on a hash function.
4. **Composite Partitioning**: Combines two or more partitioning methods, such as range and hash.

Etl Project Leader/ Project Manager

Ques:- Can we use procedural logic inside Infromatica? If yes how , if now how can we use external procedural logic in informatica?

Asked In :- Omega Healthcare, intellipaat,

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Intellipaat is a leading online learning platform that offers industry-relevant courses in emerging technologies. Founded in 2011 by Diwakar Chittora and Shilpi Jain, Intellipaat aims to bridge the gap between the demand for skilled professionals and the availability of quality training. The company provides a wide range of courses, including data science, artificial intelligence, machine learning, cloud computing, cybersecurity, and more. One of Intellipaat's key strengths is its comprehensive curriculum, which is developed in collaboration with industry experts to ensure relevance and effectiveness. Courses are delivered through a blend of self-paced learning, live instructor-led sessions, and hands-on projects, allowing students to gain practical experience and apply their skills in real-world scenarios. Intellipaat's platform is user-friendly and provides features such as interactive quizzes, assignments, and dedicated mentor support to enhance the learning experience. Additionally, the company offers certification upon course completion, which is recognized by industry leaders and can significantly boost one's career prospects.

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