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This blog post comes after conversations I’ve had recently on how to quickly decipher a potential employee’s knowledge with a quick quiz before an interview. You can then use this to gauge their knowledge based on their answers. This quiz is something that I’ve used in the past and I find that it’s a great addition to an interview.

Note

These Interview Questionnaire questions are base examples of some ideas that you can use. Each company/person has different expectations for their 1st-3rd line expertise and what they expect of them so feel free to modify this in any way that helps you in determining your suitability with a potential employee.

Questions

  1. What is the function of DHCP in a domain environment?
  2. What 3 TYPES of DNS records are required to set up an Office 365 mailbox?
  3. What is the latest Server Operating System?
  4. How many FSMO roles exist within a domain?
  5. What command can you run to find the Default Gateway?
  6. What would be the purpose of adding a reservation in DHCP?
  7. Provide an example of class A, B and C subnets
  8. What is a RODC and it’s purpose?
  9. Why would you use DFS Replication?
  10. Provide 3 VPN Protocols suitable for use in a medium-sized business
  11. How does AutoPilot benefit a client?
  12. What CMD would you use to retrieve the serial number of a PC?
  13. What’s the quickest way to clear the print spooler?
  14. Do not answer question X (I usually place this in around halfway, and state at the top of the test to thoroughly read the questions before answering)
  15. Name as many layers of the OSI model as possible
  16. How many available IP Addresses in a CIDR /24 subnet?
  17. What does CPU, RAM, ROM, GPU, BIOS, DDR/DIMM, LAN/WAN/MAN stand for?
  18. What is a MAC Address?

Answers

Not a chance! If you don’t know the answers to the questions that you’re asking, you shouldn’t be asking them! I’ve seen a few interviewers asking ‘What is the size of an IP Address’ with people answering (correctly) with 32 bits and interviewers simply responding that they are incorrect and that there are 4 bytes in an IP Address. Take the time to ensure that you have the questions you wish to use and that you know and understand the answers you’re expecting of them. Try and give them to your existing 1st-3rd line engineers and ensure that they are able to answer them honestly and fairly. Try to avoid ambiguous questions that could have more than one potential answer.

These questions are intended to be given out prior to an interview and not to be completed whilst you’re staring at them making them sweat. I tend to read through the answers once I’ve completed the interview to either solidify my gut feeling from the interview or to test knowledge against other candidates in order to make a final decision.

I hope this helps and get in touch if there is anything we can add to this!

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