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Cirrus logic Interview Questions

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Let’s say we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.

Write a query to randomly sample a row from this table.

Input:

<code>big_table</code> table

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>

Write a query to randomly sample a row from a big table.

Random SQL Sample

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

Let’s say that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.

How would you assess the validity of the result?

Experiment Validity

Cirrus logic Salaries by Position

For over four decades, Cirrus Logic has been propelled by the top engineers in mixed-signal processing. Our rockstar team thrives on solving complex challenges with innovative end-user solutions for the world's top consumer brands. Cirrus Logic is also known for its award-winning culture, which was built on a foundation of inclusion and fairness, meaningful community engagement, and delivering enjoyable employee experiences at every turn. But we couldn't do it without our extraordinary workforce - and that's where you come in. Join our team and help us continue to make Cirrus Logic an exceptional place to grow your career! Cirrus Logic's DSP Firmware Team is looking for an intern who will be a contributor on a small, focused, multi-site team delivering embedded software and related tools. You will work closely with multi-functional teams including design, software, and systems teams to assist Software Engineers in delivering robust, scalable, and reliable software solutions to meet critical design objectives. This individual will assist with the ongoing development of a suite of in-house performance analysis tools used to ensure the reliability of key company products. This project has many moving parts, so the ideal candidate is self-motivated, unafraid to ask questions, a good communicator, and able to learn new technologies and tools quickly. Responsibilities <ul> <ul><li>Work with embedded signal processing algorithm engineers and applications engineers to assess objective and subjective performance of reference designs and verify firmware implementation </li> <li>Contribute to the buildup and documentation of prototyping, development, and test infrastructures </li> <li>Follow standard methodologies in algorithm verification and testing </li> <li>Adhere to coding standards as set by the team lead </li> <li>Work with third party systems </li> <li>Abide by core Cirrus values such as Continuous Improvement </li> </ul></ul>Required Skills and Qualifications <ul> <ul><li>You are actively pursuing a BS or MS in Computer Science, Computer Engineering or Electrical Engineering </li> <li>You understand fundamentals of digital signal processing and real-time systems </li> <li>You are comfortable with high level programming languages such as MATLAB and Python </li> <li>You are able to quickly understand complex systems with many moving parts </li> <li>You have excellent communication and organizational skills </li> </ul></ul>Preferred Skills and Qualifications <ul> <ul><li>You are proficient with MATLAB/Simulink. </li> <li>You understand C programming for embedded systems </li> <li>You are familiar with the embedded DSP architectures </li> <li>You are familiar with Artificial Intelligence and Machine Learning tools and techniques </li><li>You are familiar with the use of test equipment (Oscilloscopes, digital analyzers, data loggers) </li> <li>You are familiar with real-time systems rapid prototyping platforms (dSPACE, Speedgoat, ...) </li> </ul></ul> This is a hybrid position and will follow a 2+ day in-office work schedule, with in-office days based on business needs and team preference. You must be based within commutable distance of the work location listed on the job posting, or willing to relocate prior to beginning employment with Cirrus Logic. This position is available for the Spring 2025 semester only. Diversity drives innovation at Cirrus Logic. Different approaches, ideas and points of view are both valued and respected, and employees are rewarded for their skills, experience and performance. Additionally, Cirrus Logic is an Equal Opportunity/Affirmative Action Employer, and we do not discriminate on the basis of race, color, national origin, pregnancy status, marital status, gender, age, religion, physical or mental disability, medical condition, veteran status, sexual orientation, gender identity, genetic information or any other characteristic protected by law.

Cirrus logic Interview Questions

Cirrus logic Interview Guides

Cirrus logic Interview Questions

Cirrus logic Salaries by Position

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