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Perficient Interview Questions and Answers
23 Interview questions
Rxjs is a library for reactive programming using Observables and Subscribers. forkJoins is a method for combining Observables.
Rxjs is a library for reactive programming that allows you to work with asynchronous data streams.
Observables are the source of data streams that can emit values over time.
Subscribers are the consumers of these data streams that can subscribe to Observables and receive emitted values.
forkJo...
Data set links in data model refer to relationships between different data sets in a structured manner.
Data set links help establish connections between different data sets for efficient data retrieval and analysis.
Examples include foreign keys linking tables in a relational database, or relationships between entities in a data model.
Data set links ensure data integrity and consistency across the data model.
SCD stands for Slowly Changing Dimensions. There are three types of SCD: Type 1, Type 2, and Type 3.
Type 1: Overwrite the old data with new data.
Type 2: Create a new record for the new data and keep the old record.
Type 3: Create a new column for the new data and keep the old column.
Perficient Interview Experiences
42 interviews found
Komal Vanjari
(2 Questions)
- Q1. JOINS , Exception handling
- Q2. Triggers, Cursors , Constraints
Anonymous
I applied via Recruitment Consulltant and was interviewed in Sep 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Tell me about yourself
- Q2. Where u see yourself in next 5 years
(2 Questions)
- Q1. It was an assessment of 50 questions (MCQ)
- Q2. Topics - matlab, tensors
(2 Questions)
- Q1. What are promises used for
- Ans.
Promises are used in JavaScript to handle asynchronous operations and avoid callback hell.
Promises are used to handle asynchronous operations in a more readable and manageable way.
They help avoid callback hell by chaining multiple asynchronous operations together.
Promises can be in one of three states: pending, fulfilled, or rejected.
They allow for better error handling with the use of .catch() method.
Promises can be c...
- Q2. What are modules in AEM
- Ans.
Modules in AEM are reusable components that can be used to build web pages and applications.
Modules in AEM are reusable components that can be used to build web pages and applications.
They help in organizing and structuring content in AEM.
Modules can be created using Adobe Experience Manager's component framework.
Examples of modules in AEM include header, footer, carousel, and navigation components.
(2 Questions)
- Q1. A significant challenge
- Ans.
One significant challenge I faced was optimizing website performance for mobile devices.
Implemented lazy loading for images to improve loading times
Minified CSS and JavaScript files to reduce file sizes
Utilized media queries to ensure responsive design across different screen sizes
- Q2. What are jcr in AEM
- Ans.
JCR stands for Java Content Repository, a hierarchical database used in Adobe Experience Manager (AEM) to store content.
JCR is used in AEM to store content in a hierarchical structure.
It allows for versioning, access control, and searching of content.
Nodes and properties are used to represent content in JCR.
Example: /content/mysite/homepage is a node in JCR representing the homepage of a website.
Skills evaluated in this interview
Selected
(2 Questions)
- Q1. Challenging Bip queries you have written till now. Explain it
- Ans.
One challenging BiP query involved optimizing a complex join operation to improve performance.
Used subqueries to filter data before joining
Utilized indexing to speed up the join operation
Implemented query optimization techniques like query hints
- Q2. Data set links in data model
- Ans.
Data set links in data model refer to relationships between different data sets in a structured manner.
Data set links help establish connections between different data sets for efficient data retrieval and analysis.
Examples include foreign keys linking tables in a relational database, or relationships between entities in a data model.
Data set links ensure data integrity and consistency across the data model.
(1 Question)
- Q1. It was Good. Just normal
(1 Question)
- Q1. Normal human resource questions
Skills evaluated in this interview
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. Ansible, terraform, docker, kubernetes.
- Q2. Scenario based questions
Interview Preparation Tips
30 aptitute question
(3 Questions)
- Q1. Concept of oops
- Ans.
Object-oriented programming paradigm that focuses on objects and classes
Encapsulation: bundling data and methods that operate on the data into a single unit
Inheritance: ability of a class to inherit properties and behavior from another class
Polymorphism: ability to present the same interface for different data types
- Q2. Swaping of 2 numbers
- Ans.
Swapping of 2 numbers involves exchanging the values of two variables.
Create a temporary variable to store one of the numbers
Assign the value of the first number to the second number
Assign the value of the temporary variable to the first number
- Q3. What is html and css
- Ans.
HTML and CSS are the building blocks of web development. HTML is used for structuring content, while CSS is used for styling and layout.
HTML stands for HyperText Markup Language and is used to create the structure of a webpage.
CSS stands for Cascading Style Sheets and is used to style the HTML elements on a webpage.
HTML uses tags to define different elements like headings, paragraphs, images, links, etc.
CSS allows for ...
(1 Question)
- Q1. How soon you can join
- Ans.
I can join within 2 weeks of receiving an offer.
I have a 2-week notice period at my current job.
I am available to start immediately after that.
I can provide any necessary documentation quickly.
Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed in Apr 2024. There were 4 interview rounds.
(1 Question)
- Q1. Roles and responsibilities
(1 Question)
- Q1. About roles and responsibilities
(1 Question)
- Q1. Dive into technical
(1 Question)
- Q1. About company and package discussion
(2 Questions)
- Q1. Basics of all concepts in role
- Q2. Project details and your role
- Ans.
Led a team to develop a cloud-based inventory management system for a retail client, enhancing efficiency and reducing costs.
Conducted requirements gathering sessions with stakeholders to understand their needs.
Designed the system architecture using microservices to ensure scalability.
Implemented RESTful APIs for seamless integration with existing systems.
Collaborated with the QA team to establish testing protocols, en...
Interview Preparation Tips
Selected
I applied via LinkedIn and was interviewed in Feb 2024. There were 3 interview rounds.
(1 Question)
- Q1. How to establish connection to DB through Spark? Read data from 2 tables, transform and write back to a table in DB Lot of sql stuffs
(1 Question)
- Q1. Spark Architecture Broadcast variable Rank, Dense rank and row number difference Scrum process
(1 Question)
- Q1. Evaluation on my leadership skills and personality Write and explain complete architecture in which I am currently working Team handling skills and professional challenges
Rohit Vr
(2 Questions)
- Q1. Resume discussion
- Q2. General questions about tableau and python
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