Network Security Fundamentals Certification

The Network Security Fundamentals Certification is a free 15-minute skill test from Science of Apps. It tests network security — firewalls and segmentation, VPNs and zero trust, TLS, DNS security, common ports, IDS/IPS, Wi-Fi security and DDoS basics. Score 70% or more on its 15 questions to earn a verifiable Network Security Fundamentals certificate (SOA-NSF). Every question is based on published standards and research — including Cloudflare Learning Center (Cloudflare), SP 800-207: Zero Trust Architecture (NIST), Top tips for staying secure online (UK NCSC) — and each answer is explained with its source.

Read the three skill areas on this page, then take the 15-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a Network Security Fundamentals certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: Cloudflare Learning Center (Cloudflare); SP 800-207: Zero Trust Architecture (NIST); Top tips for staying secure online (UK NCSC); MITRE ATT&CK (MITRE); NIST Cybersecurity Framework 2.0 (NIST); Known Exploited Vulnerabilities Catalog (CISA). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Three skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Network defences (Firewalls and segmentation, VPNs and zero trust and IDS/IPS); Protocols and threats (TLS and DNS, Ports and services and Wi-Fi and DDoS); Secure remote access and modern edge (ZTNA and SASE, Email security and Network monitoring). Every question is an original scenario based on a published standard, official documentation or research, named under the question.

Network administrator, Security analyst, IT engineer, SOC analyst and Cloud engineer. It suits anyone who wants a quick, verifiable way to show Network Security Fundamentals skills, from students and career switchers to experienced professionals.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

15 questions — 5 from each of 3 skill areas — with a 15-minute limit. You need 70% (11 of 15) to pass and 90% for distinction.

We rate it Intermediate: assumes hands-on experience in the role. It has 15 scenario questions — 5 from each of 3 skill areas — and a 15-minute limit. You need 70% (11 of 15) to pass and 90% for distinction.

To get a network security job in 2027, show you can protect networks end to end: designing segmentation, configuring firewalls and access rules, securing remote access with VPNs and zero trust, using IDS/IPS, enforcing secure protocols, monitoring traffic for threats and patching network devices quickly. Exploited vulnerabilities are now the top way attackers get in. Build a lab, document a hardened design and verify your skills with a free 15-minute test. Our full career guide covers the hiring process, interview loop, pay and a prep plan: scienceofapps.com/blog/network-security-career-guide/

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.