Quasar Media Interview Questions and Answers

Approach debugging by understanding the code flow, using debugging tools, isolating the issue, and testing solutions.

• Start by understanding the code flow and identifying potential areas where the issue may be occurring.

• Use debugging tools like breakpoints, logging, and stack traces to pinpoint the source of the problem.

• Isolate the issue by reproducing it consistently and narrowing down the scope of the problem.

• Test pot...read more

Refactored a legacy codebase to improve performance by optimizing database queries.

• Identified bottlenecks in the codebase by profiling and analyzing performance metrics.

• Rewrote complex and inefficient database queries to improve response times.

• Implemented caching mechanisms to reduce redundant database calls.

• Refactored code to follow best practices and improve maintainability.

• Tested the changes thoroughly to ensure the

By prioritizing tasks, using efficient algorithms, and conducting code reviews.

• Prioritize tasks based on impact and complexity to focus on critical components first.

• Utilize efficient algorithms and data structures to optimize code performance.

• Conduct code reviews with team members to identify potential bottlenecks and suggest improvements.

• Example: Prioritize implementing a caching mechanism for frequently accessed data

I would approach the situation by respectfully discussing the pros and cons of both solutions and finding a compromise.

• Listen to the senior team member or client's perspective and understand their reasoning

• Present your preferred solution along with the reasons why you believe it is the best approach

• Engage in a constructive discussion to find common ground or a compromise

• Consider the impact of each solution on the proje...read more

I regularly attend tech conferences, read industry blogs, participate in online courses, and collaborate with colleagues to stay updated.

• Attend tech conferences to learn about new technologies and trends

• Read industry blogs and articles to stay informed

• Participate in online courses and tutorials to expand knowledge

• Collaborate with colleagues to share insights and learn from each other

I use package managers, regularly update dependencies, and conduct security audits.

• Utilize package managers like npm, pip, or Maven to manage dependencies

• Regularly update dependencies to ensure compatibility and security patches

• Conduct security audits using tools like OWASP Dependency-Check or Snyk

• Consider using dependency locking to ensure consistent builds

I implemented a new feature using React Native and had to learn the framework on the job.

• Researched online resources and documentation to understand React Native

• Experimented with small projects to practice using React Native

• Sought help from colleagues or online communities when facing challenges

Identified and addressed a potential bottleneck in a system before it became a problem.

• Monitored system performance regularly to identify any potential bottlenecks

• Analyzed system logs and metrics to pinpoint the root cause of the bottleneck

• Implemented optimizations such as caching, indexing, or code refactoring to address the bottleneck

• Collaborated with team members to implement a long-term solution to prevent similar

I prioritize tasks based on deadlines, impact, and dependencies, and use tools like to-do lists and project management software.

• Evaluate deadlines and prioritize tasks that are due soon

• Consider the impact of each task on the overall project or team goals

• Identify dependencies between tasks and prioritize accordingly

• Use tools like to-do lists, project management software, or time-blocking techniques to stay organized

• Regu

I use consistent naming conventions, inline comments, and thorough documentation to ensure clean and well-documented code.

• Follow consistent naming conventions for variables, functions, and classes to make the code easier to understand.

• Include inline comments to explain complex logic or algorithms within the code.

• Write thorough documentation for each function, class, and module to provide context and usage instructions ...read more

Approach integrating new feature into existing system without disruption

• Analyze the existing system to understand its architecture and dependencies

• Identify the impact of the new feature on the current functionality

• Implement the new feature in a separate branch or environment for testing

• Conduct thorough testing to ensure the new feature works as expected and does not break existing functionality

• Gradually integrate the n...read more

SQL Joins are used to combine rows from two or more tables based on a related column between them.

• SQL Joins are used to retrieve data from multiple tables based on a related column between them.

• Common types of SQL Joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;

Python numpy provides various functions for numerical operations on arrays.

• numpy.sum() - calculates the sum of array elements

• numpy.mean() - calculates the mean of array elements

• numpy.max() - returns the maximum value in an array

• numpy.min() - returns the minimum value in an array

• numpy.std() - calculates the standard deviation of array elements

Joins are used in databases to combine rows from two or more tables based on a related column between them.

• Joins are used to retrieve data from multiple tables based on a related column between them

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column

Processing speed of scripting languages varies based on factors like code complexity and optimization.

• Processing speed can vary based on the specific task being performed.

• Compiled languages like C++ tend to be faster than interpreted languages like Python.

• Optimizing code can improve processing speed.

• JavaScript can be faster than Python for certain tasks.

• Consider using libraries or frameworks optimized for performance.

Formulae in digital marketing refer to mathematical equations used to analyze and optimize marketing strategies.

• Formulae help calculate key performance indicators (KPIs) such as ROI, CTR, and conversion rates.

• Examples of formulae include ROI = (Revenue - Cost) / Cost, CTR = (Clicks / Impressions) * 100%, and Conversion Rate = (Conversions / Clicks) * 100%.

I will be able to join within two weeks of receiving an offer.

• I need to give my current employer two weeks notice before leaving.

• I may need to finalize any pending projects before starting a new role.

• I am excited about the opportunity and look forward to joining the team.

CM360 is a comprehensive marketing platform for managing customer data and optimizing campaigns across channels.

• CM360 stands for Campaign Manager 360, part of Google Marketing Platform.

• It allows users to track and manage digital advertising campaigns.

• Features include ad serving, targeting, and reporting tools.

• Integrates with Google Analytics for enhanced data insights.

• Supports cross-channel measurement, helping markete

DSP stands for Digital Signal Processing, a technique used to manipulate signals for various applications.

• DSP is used in audio processing, such as noise reduction and equalization.

• In telecommunications, DSP helps in encoding and decoding signals.

• Image processing applications, like filtering and compression, utilize DSP.

• DSP algorithms are crucial in radar and sonar systems for target detection.

Synthetic Events are events that are created by the browser to mimic real user events.

• Synthetic Events are used in React to handle events in a consistent manner across different browsers.

• They are created by React to wrap native browser events and provide additional functionality.

• Examples include onClick, onChange, and onSubmit events in React.

Event bubbling is the process where an event triggered on a child element is propagated up through its parent elements.

• Event bubbling allows a single event handler to be attached to a parent element, which will be triggered for all its children.

• When an event occurs on a child element, it first runs the event handlers on the child, then on its parent, and so on up the DOM tree.

• Event bubbling can be stopped using event.s