In this guide
- Is help desk an entry-level job?
- What technical questions will they ask?
- What troubleshooting scenarios should you prepare?
- What will they ask about tickets and ITIL?
- Which customer service questions come up?
- What should you ask at the end?
- How should you prepare in the week before?
- How Experiencely can help
IT help desk interviews in the UK usually cover four areas: technical basics, troubleshooting scenarios, customer service and how you handle tickets. Interviewers aren't expecting you to know everything. They want to see a calm, logical approach, honesty about what you don't know, and that you'd be pleasant for a stressed user to deal with at 8.45 on a Monday.
Below are the questions that come up most, with the kind of answers that work.
Is help desk an entry-level job?
Yes, and that shapes the interview. First line help desk and service desk roles are one of the most common ways into IT. The National Careers Service lists starting as a trainee technician and studying while you work as one of the main routes in.
Because it's entry level, interviewers weigh attitude and communication heavily. On IT Jobs Watch, customer service appeared in 44.6% of UK permanent 1st line support ads in the six months to November 2026, close behind Microsoft 365 (53.3%) and Windows (51.5%). Expect at least half the interview to be about how you deal with people.
What technical questions will they ask?
These come up again and again. Keep answers short and accurate.
"What is Active Directory?" A Microsoft directory service that stores users, computers and groups, and controls who can log in and access what. Most help desk work touches it: password resets, clearing account lockouts, adding users to groups.
"What's the difference between an IP address and a MAC address?" An IP address identifies a device on a network and can change. A MAC address is tied to the network hardware.
"What does DNS do?" It turns names like a website address into IP addresses. When "the internet isn't working" but you can reach an IP address directly, DNS is a likely suspect.
"What does DHCP do?" It hands out IP addresses automatically. If a PC has an address starting 169.254, it probably couldn't reach a DHCP server.
"Which commands would you use to troubleshoot a network issue?" ipconfig (and ipconfig /all), ping, tracert and nslookup on Windows. Say what each tells you.
If you're unsure of an answer, say so and explain how you'd find out. "I'm not certain, but I'd check our knowledge base and ask a second-line colleague" is a good answer. Guessing confidently is a bad one.
What troubleshooting scenarios should you prepare?
These test your process. Talk through your steps in order.
"A user can't log in." Check whether the account is locked or disabled in Active Directory, whether the password has expired, whether caps lock is on, whether it's one device or all devices, and whether multi-factor authentication is the issue. Fix, confirm with the user, log the ticket.
"A user says their PC is slow." Ask what's slow (everything, or one app?) and since when. Check Task Manager for CPU, memory and disk use, check for updates or a pending restart, check free disk space. Restarting is a legitimate first step, but say why.
"Outlook isn't receiving emails." Check whether webmail works. If it does, the problem is local: offline mode, a full mailbox, a corrupt profile. If it doesn't, check the account and wider service status.
"The printer isn't working." Is it one user or everyone? Check the print queue, the printer's status and connectivity, and the user's default printer. Printers are a running joke on service desks, so a bit of good humour doesn't hurt.
Our IT service desk analyst guide covers the day-to-day issues in more depth.
What will they ask about tickets and ITIL?
ITIL appeared in 31.9% of the 354 UK permanent service desk analyst ads on IT Jobs Watch in the six months to November 2026, and ServiceNow in 15.5%. You don't need the ITIL certificate, but know the language.
"What's the difference between an incident and a service request?" An incident is something broken (a user can't print). A service request is something wanted (a new laptop, access to a shared folder).
"How do you prioritise tickets?" By impact and urgency. A whole office unable to log in comes before one user's wallpaper. Mention that most service desks have a defined priority matrix and service level agreements (SLAs).
"When would you escalate?" When the fix is beyond your access or knowledge, when the SLA is at risk, or when it's affecting many users. Escalate with good notes so second line doesn't have to start again.
"Why are good ticket notes important?" So anyone can pick up the ticket, so patterns can be spotted, and so the knowledge base improves.
Which customer service questions come up?
Expect at least two of these:
- Tell me about a time you dealt with a difficult customer.
- How would you explain a technical fix to someone who isn't technical?
- What would you do if a senior manager demanded you fix their problem first?
- How do you handle a call when you don't know the answer?
Use real examples and the STAR shape (situation, task, action, result). Retail, hospitality and call centre stories are perfect here. Show that you listened, stayed calm, set expectations honestly and followed up.
For the senior manager question, a good answer balances both sides: be polite, check the priority rules, escalate to your team lead if needed, and never ignore a higher-priority ticket because someone is louder.
What should you ask at the end?
Have three questions ready. For example:
- What does a typical day look like, and how many tickets does the team handle?
- Which ticketing system do you use?
- How do first line staff progress to second line here?
The last one shows ambition and tells you whether the role leads anywhere.
How should you prepare in the week before?
Revise the technical basics above until you can explain each in a sentence. Practise talking through two or three troubleshooting scenarios out loud. Prepare three real stories about customers, mistakes and pressure. Read the company's website so you know who their users are.
If you've built a home lab, mention it. "I set up Active Directory in a virtual machine and practised creating users and resetting passwords" is a strong line from a beginner. Our IT help desk jobs guide has more on getting to interview stage.
How Experiencely can help
The best interview answers come from real tickets you've handled. Our IT help desk programme gives you training and three CompTIA certifications (ITF+, A+ and Cloud Essentials+), plus a live service desk placement. You're placed within 48 hours and work about an hour a day for three months, fully remote. The programme costs £2,495. If you're not hired within 60 days of finishing, you get your money back (conditions apply). You walk into interviews with real examples instead of hypotheticals.
Frequently asked questions
What questions are asked in an IT help desk interview?
Expect technical basics (password resets, Active Directory, IP addresses, DNS, common commands), troubleshooting scenarios such as a slow PC or Outlook not syncing, customer service questions about difficult users, and ITIL-style questions about tickets, priorities and escalation. Most interviews also include a few behavioural questions.
Is help desk an entry-level job?
Yes. First line help desk and service desk roles are among the most common entry-level jobs in UK IT. The National Careers Service lists starting as a trainee technician as one route in, and employers often hire for customer service and attitude, then train the technical detail on the job.
How do I answer 'tell me about a time you dealt with a difficult customer'?
Use a real example and the STAR shape: situation, task, action, result. Show that you stayed calm, listened, explained clearly what you could and couldn't do, and followed up. It doesn't have to be an IT example. Retail, hospitality and call centre stories all work well.
Do I need to know ITIL for a help desk interview?
You don't need the certificate, but know the basics. ITIL appeared in 31.9% of UK service desk analyst ads on IT Jobs Watch in late 2026. Be able to explain the difference between an incident and a service request, what priority means, and when and how you escalate a ticket.
Sources
Figures are taken from the sources below. Salary ranges are indicative and individual offers vary. Last checked 9 November 2026.