What is this programme?
The Network Fundamentals Certificate from ecertificate.pro is a self-paced online course covering the OSI and TCP/IP models, IPv4 and IPv6 addressing, subnetting, routing tables, DNS resolution, and command-line troubleshooting with ping, traceroute, dig, tcpdump and Wireshark. It takes roughly 24 hours and ends with a scored diagnostic assessment; passing releases a certificate to your private dashboard, where a unique verification code can be checked against the ecertificate.pro database. ecertificate.pro is an independent training provider that has issued certificates since 2016 — it is not a government body, university or accreditation council. This certificate is not government-approved, not officially accredited, and grants no licence, professional title or job guarantee; it documents that you completed and passed this specific course. The verification code resolves only in the ecertificate.pro database and is not filed with any third-party register or awarding organisation. Treat it as evidence of structured self-directed study alongside vendor exams, not as a replacement for them.
Who it is for
Help-desk and junior IT staff moving into network or system administration, developers who need to debug connectivity and TLS failures in their own services, security analysts who have to read capture files, and self-taught technicians who want a solid foundation before attempting an entry-level networking exam.
What you will be able to do
- Place any observed symptom on the correct OSI layer and name the header field that proves it - MAC address, IP TTL, TCP flags or an HTTP status line.
- Subnet an IPv4 block by hand: convert /26, /27 and /30 masks into usable host ranges, plan VLSM address space for a four-site office, and spot overlapping ranges before deployment.
- Read a routing table on Linux and on a vendor-style CLI, explain longest-prefix match and administrative distance, and add a static route plus default gateway that survives a reboot.
- Trace a DNS query end to end - stub resolver, recursive resolver, root, TLD, authoritative - and use dig +trace, dig @server and SOA/NS records to prove where a stale answer comes from.
- Capture traffic with tcpdump filters (host, port, tcp[tcpflags]) and analyse it in Wireshark: follow a TCP stream, identify retransmissions, and measure handshake and TLS setup latency.
- Diagnose the recurring failure set: duplex mismatch, wrong VLAN, MTU and fragmentation problems, ARP conflicts, asymmetric return paths, and a firewall dropping SYN silently.
- Document an unfamiliar network - L2/L3 diagram, address plan, DHCP scopes and DNS zones - in a form another engineer can act on without asking you questions.
Modules
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1
How Data Actually Moves: OSI and TCP/IP Side by Side
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2
Layer 2: Ethernet, MAC Addressing, Switching and VLANs
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3
IPv4 Addressing and Subnetting Without a Calculator
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4
Routing: Tables, Longest-Prefix Match and Static Routes
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5
DHCP, NAT and the Internet Edge
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6
DNS End to End: Resolution, Records and Cache Failures
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7
Transport and Application Layers: TCP, UDP, TLS and HTTP
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8
Structured Troubleshooting and Network Documentation
How it works
Learning format
Self-paced written material, downloaded from your dashboard. No fixed schedule and no live sessions — you work through it when it suits you.
Material delivery
Everything appears in your dashboard as soon as your payment is confirmed. Files are served only to your signed-in session.
Prerequisites
None beyond comfort with a command line on Windows, macOS or Linux. No prior networking study is assumed; IPv4 arithmetic is taught from binary up. A laptop able to run Wireshark and a free virtual lab (GNS3, Containerlab or three VMs) is recommended but not required — every exercise also has a single-host version.
Completion
Each module ends with a graded lab or scenario quiz, and the final assessment hands you a broken topology plus a capture excerpt to diagnose. Score 70% or higher and the certificate, with its unique verification code, appears in your private ecertificate.pro dashboard within minutes.
Your certificate
Once your completion is confirmed, we prepare your certificate and upload it to your dashboard, normally within 24–48 hours. You receive an e-mail as soon as it is there — you never have to chase it.
Refunds
Because the material is delivered digitally and immediately, purchases are non-refundable once the files have been made available to your account. The full terms are in our Refund Policy.
