What is interrupt latency, and what steps can you take to reduce it?

As you can tell from the structure of this question, it is asking you about a technical feature or issue related to the type of systems you will be working on. Interviewers will ask you about technical issues that are important to them or challenges they are currently facing. Knowing how to resolve these types of issues will reinforce your qualifications for this role. You may be able to learn about the organization's current challenges by reviewing the job posting, exploring their website, or talking to current or former firmware engineers in their organization.