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Infrastructure

Secure Exam Centre Network.

Designed and operated resilient computer-based testing infrastructure — network isolation, endpoint hardening and operational readiness for high-stakes examinations.

CiscoLinuxVMwareWireshark
Computer lab with rows of desks and monitors
P/01 Overview

Exam day leaves no room for “maybe”.

High-stakes examinations with hundreds of concurrent candidates demand infrastructure with zero tolerance for failure — and zero tolerance for malpractice. I built the centre’s network and systems around both requirements at once.

Isolated exam VLANs, locked-down endpoints, virtualized exam servers and a rehearsed operations plan mean each session starts on time and every result is trustworthy.

P/02 Scope of works

Isolation, hardening, readiness.

  • Dedicated exam network: isolated VLANs, ACLs and monitored uplinks
  • Endpoint hardening: locked profiles, USB control and kiosk-mode testing
  • Virtualized exam servers with snapshots and rapid rollback
  • Power and connectivity redundancy with tested failover
Students at computers in an exam hall
P/03 Approach

Rehearse like it matters — it does.

01

Isolate

Exam traffic separated from every other network by design.

02

Harden

Endpoints and servers locked to exactly what exams need.

03

Rehearse

Full mock sessions under load before every testing cycle.

04

Operate

Staffed exam-day operations with spares and rollback ready.

P/04 Outcome

What the centre gained.

A testing centre that runs full examination cycles without session-disrupting incidents — trusted by candidates, invigilators and the examining bodies alike. Traffic analysis with Wireshark and structured post-session reviews keep each cycle smoother than the last.

The operations runbook now lets trained staff repeat the success every session.

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