What is the most important question to ask in a job interview, according to a LinkedIn career expert?

The last few minutes of a job interview, when the interviewer concludes their questions, are crucial not to squander.

Asking intelligent, insightful questions can give you an advantage over other applicants and help you determine if a job is the right fit for you.

In a job interview, it is crucial to always ask one specific question, according to LinkedIn career expert Andrew McCaskill.

"How do you envision success in the first 90 days of this job?"

Demonstrating proactivity and a desire to excel in the role, McCaskill explains that asking how success is measured within the team or company shows that you are willing to learn the necessary skills.

McCaskill suggests that the first 90 days of a new position is the standard timeframe employers use to evaluate an employee's fit for the job and company culture. Therefore, it is useful to include this reference point when answering the question to make it more specific.

The interviewer perceives your curiosity and consideration of how you can assist them in resolving their current challenges, according to him.

What is the learning curve and evaluation criteria for this question?

The interviewer's reaction could boost your confidence in the job or reveal potential issues.

If the hiring manager does not specify the job's tasks and responsibilities or is unclear about the overtime schedule and expectations, it could indicate that the job is high-stress, according to McCaskill.

This question can also help you prepare for any follow-up interviews.

"According to McCaskill, the statement "It helps you get to the very heart of what they're looking for" explains how the information provided can assist you in understanding the skills and traits that the employer values in a candidate for this role, as well as the language they use to describe their ideal candidate. By mirroring this language, you can increase your chances of being hired."

To secure your dream job in 2024, enroll in CNBC's new online course, "How to Ace Your Job Interview," which covers what hiring managers truly value, effective body language, smart interview responses, and the art of discussing compensation.

Sign up for CNBC Make It's newsletter to receive tips and tricks for success at work, with money and in life.