Qliktech Interview Questions and Answers

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Q1. What is memory in linux
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Q2. What is cpu in linux
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Q1. How are you doing right now
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Q2. Introduce yourself in minimum words
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Q1. Currying, closure, es6 features
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Q2. Event looping, prototype chaining
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Q3. Html structure, meta tag, viewport
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Q1. Experience in past proyects
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I have worked on various projects ranging from web development to mobile app development, gaining experience in different technologies and frameworks.
• Developed a web application using React.js and Node.js for a client in the e-commerce industry

• Created a mobile app using Flutter for a startup in the travel sector

• Collaborated with a team to implement a machine learning algorithm for data analysis in a research project
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Q2. Experience leading a group of develeopers
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Led a team of developers on a project to develop a new software application.
• Managed a team of 5 developers to ensure project deadlines were met

• Assigned tasks to team members based on their strengths and expertise

• Held regular team meetings to discuss progress and address any issues

• Provided guidance and support to team members when needed

• Collaborated with other departments to gather requirements and feedback
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Q1. It was more like a talk about your experience
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Q2. Code test to create a small search enginee
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Code test to create a small search engine
• Create a function that takes a search query and an array of strings as input

• Iterate through the array of strings to find matches with the search query

• Return an array of strings that contain the search query
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60mins test duration

Q1. What are Linux commands
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Linux commands are instructions given to the operating system to perform specific tasks or operations.
• Linux commands are case-sensitive

• Commands are typically entered in the terminal

• Common commands include ls (list files), cd (change directory), mkdir (make directory)

• Commands can be combined with options and arguments for more specific actions
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Q2. What is virtualization concept
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Virtualization is the process of creating a virtual version of a device or resource, such as a server, storage device, network or operating system.
• Virtualization allows multiple virtual instances to run on a single physical machine

• It helps in optimizing resources and improving efficiency

• Examples include VMware for server virtualization, VirtualBox for desktop virtualization
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Q1. SQL queries and differences b/w delete and truncate
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Delete and truncate are SQL commands used to remove data from a table, but with key differences.
• DELETE is a DML command used to remove specific rows from a table based on a condition.

• TRUNCATE is a DDL command used to remove all rows from a table, resetting auto-increment values.

• DELETE can be rolled back, while TRUNCATE cannot be rolled back.

• DELETE triggers ON DELETE triggers, while TRUNCATE does not trigger any trigger...read more
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Q2. What is cloud and aws
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Cloud computing is the delivery of computing services like servers, storage, databases, networking, software, analytics, and intelligence over the internet.
• AWS (Amazon Web Services) is a popular cloud computing platform offered by Amazon.

• Cloud computing allows users to access resources on-demand without the need for physical infrastructure.

• AWS provides a wide range of services such as EC2 (Elastic Compute Cloud), S3 (S...read more
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A good DSA question, based on array manipulation and queues. Platform was Zoom call, so you can use any online IDE.

Q1. Question related to previous job Experience
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Q2. Questions related to OOPS concepts
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Q3. Question on System Design and Fundamentals of Language.
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Q1. Past Experience
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Q2. How you tackle with challenges in less time
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I prioritize tasks, break them down into smaller steps, and seek help when needed.
• Prioritize tasks based on urgency and importance

• Break down challenges into smaller, manageable steps

• Seek help from colleagues or mentors when needed
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Q3. How you handle complete new tech stack?
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I approach learning a new tech stack by researching, experimenting, seeking help from colleagues, and gradually building proficiency.
• Research the new tech stack to understand its fundamentals and best practices

• Experiment with small projects or tutorials to gain hands-on experience

• Seek help from colleagues or online communities for guidance and support

• Gradually build proficiency by working on real-world projects using t
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Q4. Approach towards trivial puzzles.
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Q1. Compensation Decisions
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Q1. What is content security Policy
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Content Security Policy (CSP) is a security standard that helps prevent cross-site scripting (XSS) attacks by allowing website owners to control which resources can be loaded on their site.
• CSP is implemented using an HTTP header that specifies approved sources of content such as scripts, stylesheets, images, fonts, and more.

• It helps protect against XSS attacks by restricting the sources from which certain types of cont...read more
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Q2. React question to have directory sturcture listing
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Given one at home assignment to create a lwc component

Q1. How to have different pricing based on regions
Ans. 
Different pricing based on regions can be achieved by using price rules and custom fields in Salesforce.
• Create custom fields to store region information for each account or opportunity

• Use price rules to set different prices based on the region

• Utilize workflow rules or process builder to automate the pricing based on region

• Consider using custom metadata types for easier maintenance and scalability
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Q2. Parent to child relation in lwc
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Parent to child relation in LWC refers to the relationship between a parent component and its child components in Lightning Web Components.
• Use @api decorator in child component to expose properties to parent component

• Use @track decorator in parent component to track changes in child components

• Communicate between parent and child components using events or properties
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Q1. How to implement caching in web apis
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Caching in web APIs improves performance by storing frequently accessed data
• Use in-memory caching for fast access to data

• Implement output caching to store responses for future requests

• Consider using distributed caching for scalability

• Set appropriate cache expiration policies to ensure data freshness
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Q2. Disadvantage of repository pattern
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One disadvantage of the repository pattern is the potential for over-abstraction and complexity.
• Can lead to unnecessary complexity in simple applications

• May result in additional overhead and performance issues

• Difficult to implement complex queries efficiently

• Can lead to code duplication if not properly managed
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Q3. Anagrams program.
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An anagrams program checks if two strings are anagrams of each other.
• Create a function that takes in two strings as input

• Remove any spaces and punctuation from the strings

• Convert both strings to lowercase for case-insensitive comparison

• Sort the characters in both strings

• Check if the sorted strings are equal to determine if they are anagrams
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