I recently graduated with an A+ certification, about four months of co-op experience, and a few personal projects. After applying for IT analyst and systems administrator positions at an MSP, I completed a challenging two-hour interview and was offered a junior sysadmin role. I'm excited, but I'm also aware that I have gaps in my knowledge. What should I focus on during the two weeks before I start? I want to build useful fundamentals and make a strong impression without trying to memorize everything at once.
5 Answers
Congratulations! A good junior should have access to a senior person or team lead for guidance. If they immediately give you unrestricted access and expect you to figure everything out alone, treat that as a warning sign. Work carefully, handle one task at a time, document what you change, and be cautious with screenshots or logs that might contain confidential information.
First, ask your new manager what systems and tasks you’ll actually be working with. The technology stack can vary hugely between companies, and targeted preparation will be much more useful than studying random topics. At a minimum, review networking basics, DNS, DHCP, Active Directory, Microsoft 365 or Exchange Online, virtualization, operating-system troubleshooting, and basic PowerShell. Get familiar with ticketing systems, documentation, and safe troubleshooting practices too.
A practical two-week plan would be: spend the first few days reviewing networking and Windows fundamentals, then practice basic PowerShell and common directory-service tasks in a lab. After that, read about the employer’s products if you know them, and practice documenting hypothetical troubleshooting steps. Don’t split your attention across too many subjects. Learn one concept at a time and keep a short reference guide for commands, symptoms, and solutions.
Your attitude and communication will matter as much as your technical knowledge. Be polite and patient with users, especially when they make mistakes or cannot describe the problem clearly. Explain technical issues in plain language, don’t make promises you can’t keep, and try to identify the underlying business need instead of blindly completing the first request. Also, never apply a change you don’t understand just because an online source or AI tool suggested it—verify the advice and follow your organization’s procedures.
They know you’re coming in as a junior, so they shouldn’t expect you to know everything on day one. In many entry-level roles, you’ll learn the company’s environment through tickets, documentation, account issues, endpoint support, and routine administration. Focus less on cramming and more on being dependable: take detailed notes, remember what you’re taught, research issues before escalating them, and ask for help when you’re genuinely stuck.
Taking notes is especially valuable, but don’t be afraid to ask follow-up questions. The goal isn’t to avoid asking anything—it’s to show that you listened, recorded the answer, and made a reasonable attempt before coming back.