Network Administrator skills and qualifications
Network administrator adverts list the same core skills in different words. Behind the wording, employers want someone who can keep a network running, fix it quickly when it stops, and change it without surprises. This guide breaks those expectations into technical skills, tools, qualifications and working habits, and explains how to prove each one.
How this guide was made
Written for this site with AI assistance, then checked automatically before publishing. The topic table, sample questions, worked examples and study plan are generated from this site’s question bank: each worked example is recalculated by separate code, and each sample answer says where it came from.
The guide deliberately states no salaries, grades, pass marks or exam dates. Those change, and they could not be checked here, so take them from the advert itself.
This site is independent and is not affiliated with MIFOTRA or any employer.
Technical skills
- Designing and applying IPv4 addressing, including subnetting, with a working knowledge of IPv6.
- Configuring switches: VLANs, trunks, port security and spanning tree.
- Configuring routing: static routes and at least one dynamic protocol such as OSPF.
- Running DHCP, DNS and NAT, and diagnosing them when they fail.
- Setting up and securing wireless networks.
- Writing firewall rules and access control lists that allow what is needed and nothing more.
- Monitoring with SNMP and syslog, and reading logs to find where a problem started.
- Basic scripting in Python or PowerShell to automate repetitive tasks such as backing up configurations.
Where to spend your study time
The suggested emphasis reflects what this position works with day to day. It is a study guide, not a published exam blueprint.
| Area | Suggested emphasis | Questions in the bank | Practise |
|---|---|---|---|
| Networking fundamentals | 31% | 2,636 | Networking |
| Routing and switching | 23% | 247 | Routing & Switching |
| Ports and protocols | 15% | 264 | Networking |
| Cybersecurity | 15% | 541 | Security |
| Hardware and operating systems | 8% | 961 | Hardware & OS |
| Linux command line | 8% | 360 | In the full bank |
Tools you should be comfortable with
Command-line tools come first: ping, tracert or traceroute, ipconfig or ip addr, nslookup and netstat. Beyond those, employers value experience with Wireshark for reading packet captures, an SSH client for managing devices, and at least one monitoring platform such as Zabbix, LibreNMS or PRTG.
For practice, Cisco Packet Tracer, GNS3 and EVE-NG let you build and break networks without real equipment. Describing labs you have built, and what went wrong in them, is credible evidence of skill.
Qualifications
Most adverts for this post ask for a diploma or bachelor's degree in computer engineering, information technology, computer science or telecommunications, and many also ask for experience in a similar role. A certificate such as CompTIA Network+ or Cisco CCNA does not replace a required qualification, but it strengthens an application that already meets it.
Read the requirements in each advert literally. In public-service recruitment, shortlisting is done against the stated qualifications and experience, so an application that does not clearly meet them may never reach the written test.
The habits that separate good administrators
Technical skill gets you shortlisted. Habits decide whether people trust you with the network. Good administrators document as they go, so the network diagram and IP plan match reality. They report outages early and plainly to people who are not technical. They follow change control even for small changes, and they stay calm when everything is down and everyone is asking questions at once.
They also work well with outsiders: internet providers, equipment suppliers, and neighbouring teams such as the system administrators and the helpdesk. They keep learning, too, because the equipment they run and the threats against it keep changing.
Showing skills you have not been paid for
If your experience is thin, show evidence instead of claiming skills. Build a home or virtual lab and describe what you configured. Help a school or small business with its network, with permission, and write up what you did. Complete hands-on course labs and keep notes. On a CV and in an interview, specific evidence of what you have done convinces far more than a list of skills.
Open adverts for this position
No open Network Administrator advert matched when the jobs board was last checked. It is refreshed every morning.
Common questions
Do I need to know IPv6?
You should understand its address format, how addresses are shortened, and the main address types. Many networks still run mostly on IPv4, but IPv6 basics are part of every current networking certificate syllabus.
Is programming required for a network administrator?
Rarely as a formal requirement, but basic scripting is increasingly valuable. Automating a task such as saving switch configurations every night makes a good first project and a useful talking point.
Which skill should I build first if I am starting out?
Addressing and subnetting, because almost everything else depends on them. Once you can plan and troubleshoot IP addressing confidently, VLANs, routing and firewall rules become far easier to learn, and each one makes more sense.
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