Telecom Security Quizzes

Short quizzes to test and sharpen telecom security knowledge: signaling, 5G, Diameter, roaming, IMS. Free, with per-question explanations.

• Signalling 101
  Beginner · 10 questions
  Test your grasp of the core mobile signalling protocols: SS7/SIGTRAN, Diameter, and GTP, and the attacks that target them.
• 5G Core Security
  Intermediate · 10 questions
  From the Service Based Architecture and HTTP/2 to SEPP, NRF and PLMN-to-PLMN N32, how 5G changes the threat model.
• Roaming & Interconnect
  Intermediate · 10 questions
  Inter-operator interconnect is where most signalling attacks live. Test your knowledge of GRX/IPX, roaming agreements and GT leasing risk.
• TelcoSec Regulation
  Beginner · 10 questions
  From NIS2 in the EU to GSMA Fraud & Security guidelines, this track covers the regulatory landscape every TelcoSec team needs to know.
• IMS & VoLTE Security
  Intermediate · 10 questions
  Test your understanding of the IP Multimedia Subsystem and Voice over LTE, the SIP-based call control plane that sits behind every modern mobile call.
• Telecom Fraud & SIM Attacks
  Beginner · 10 questions
  From international revenue share fraud to SIM swap and eSIM hijacking, this track covers the fraud and identity attacks that hit operators and subscribers every day.
• Open RAN Security
  Advanced · 10 questions
  From the O-RAN Alliance architecture and the RIC to xApps, rApps and the O1/E2/A1 interfaces, test your knowledge of the security challenges of disaggregated, multi-vendor RAN.