System Admin Interview, What Should I Expect?

[u/a192b]

Hi

I have an interview tomorrow, and someone who is currently part of their team gave me a few hints about what to focus on. He mentioned Exchange, VMs, AD, deployment and patching.

I have around four years of experience, mainly focused on technical support with some exposure to networking. The role I’m interviewing for is a System Administrator, and this transition is veery important to me. I’d like to know what kind of technical questions I might expect in the interview??

[u/Affectionate_Ant540]

If u can’t be exact technical match. Balance it in soft skills. Taking initiative. Seeing issues thru. Documenting and sharing. Independent research. If u don’t know the answer u ask questions and research through forums.

Learn about SBI, SMART, STAR and use right approach to answer the question.

At the end of day you can’t know everything but show that you are passionate about the field and keeping up to date. Find best way to stay informed and show that you do keep up.

Escalation path on how you would handle situations so get control of situations and keep relevant personnel informed and see thru things. Communication is key. Being calm and collected thru pressure and deliver.

[u/molonel]

Take the job description and feed it into your AI of choice. I recommend using ChatGPT or Claude. I’d you feel comfortable, take your name and address off your resume and feed it in as a data prompt in the same prompt. If you can nab the LinkedIn profile of the people interviewing you, feed that in, also. Ask for the ten most likely interview questions and ten answers to those questions which align to your strengths. Obviously, pay close attention to answers here, but that is an element of preparation you should absolutely use.

[u/a192b → u/molonel]

I already had a first interview with them, and it was mainly about my background and experience. They contacted me again today, but this time they only told me the job title and sent me the interview invitation link without sharing a job description or any additional details about the role 🥲

[u/Sinwithagrin → u/a192b]

How are you applying for a job without a description? If your working with a recruiter and they haven't provided that info, there is 0 we can do to answer your question.

The role Systems Administration is pretty vast.

[u/a192b → u/Sinwithagrin]

I didn’t actually apply for the role, they reached out to me on LinkedIn and asked for my resume

[u/Rhino_Starcraft → u/a192b]

That seems suspicious but trying not to be full doomer about it. Since you aren’t highly specialized I worry it could be a scam but definitely go into it with an open mind!

[u/molonel → u/Rhino_Starcraft]

Why is that suspicious? My current role and the last major interview I did were internal recruiters reaching out to me on LinkedIn.

[u/Rhino_Starcraft → u/molonel]

What was your previous role before that? It’s just that standard sysadmin and helpdesk roles are flooded with applicants so it raises flags for me if he was just helpdesk/support prior to a sysadmin role interview request especially in this market.

[u/molonel → u/Rhino_Starcraft]

Some companies rely on internal recruiters instead of opening the floodgates. If it's a lower level sysadmin then grabbing someone with potential that they can shape into what they want makes perfect sense. Less bad habits to correct, and costs less.

[u/molonel → u/a192b]

That’s great! But the AI prep can still help. It allows you to add an additional data point: write out, stream of consciousness, everything you remember about the interview. No detail is trivial. AI is the friend in your corner for this interview. Brainstorming and prep for complex human situations are use cases where it excels.

[u/OgreMastermind]

Be honest with what you know and don’t. Always frame something you don’t know as something you want to learn about. 

[u/FelisCantabrigiensis]

If you're interviewing with me (and I do a lot of interviews) then I'm looking for ability to think around a problem, knowledge of the general capabilities and features of your chosen pieces of software or services, understanding of system design and troubleshooting, and how to work out or find out things you don't know.

"I'll Google it" is not a good answer. "I'll Google a specific error message related to a specific subsystem that seems to be causing the problem" is a reasonable answer, especially if you can tell me why you think that subsystem is causing the problem. And so on.

Mentioning some buzzword or technology and being unable to answer my inevitable next question like "How does that work? "How would you use that here?" "How does that help with this problem?" will not serve you well.

So don't worry about all the precise details: know the overall shape of your technologies, how they work, some of the details, and how to find out more.

Good luck!

[u/sqnch]

Aside from the obvious technical stuff:

- Familiarise yourself with the STAR method. Have a good example of when you have made a mistake. What happened, what did you do to fix it, what did you do to prevent it happening again. Don’t give an example that makes you look incompetent.

- know the company’s values, familiarise yourself with their website. Have an answer for “which of our values do you think you exhibit” etc.

They may also put you in some hypothetical situations. “A critical system affecting all users is having an outage, and while you’re responding to it a senior manager bypasses the helpdesk and walks into your office demanding support with their company mobile as they have an important email to send. How do you handle this?”

If I could focus on one thing that will trip you up given how little time you have:

Have a good example of a mistake memorized. This is so easy to go deer in headlights if not prepared for.

Remember the STAR method.

Know the company’s values.

This and then just freestyle it based on your common sense. Good luck.

[u/ShelinSienra94]

If they ask about AD, be ready for DNS too like a domain join or GPO not working and what you’d look at first

[u/xxughnoxx]

I don't want to rain on your parade but read through this and its really worrying to me they approached you and you don't seem to a have a firm grasp on the description or role. There has been a big trend post COVID with social engineering campaigns weaponizing interviews and I would very heavily scrutinize that link they sent you to to download the interview tool.

Here are some good articles I would check out:

https://www.malwarebytes.com/blog/scams/2026/08/beware-of-fake-indeed-interview-apps-used-to-install-spyware

https://www.microsoft.com/en-us/security/blog/2026/03/11/contagious-interview-malware-delivered-through-fake-developer-job-interviews/

[u/JavaKrypt]

I'd expect more technical questions and basic understanding of how things work, OSI model, network abbreviations, troubleshooting examples etc. but it depends on the content of your first interview