Failed Security, Compliance and Identity Fundamentals (SC-900)? Here's Your Recovery Plan

Pro tip: Microsoft waives the waiting period only where internet connectivity problems or equipment failure disrupted the exam and Pearson VUE opened a case; the waiver request must include the Pearson VUE case number. A passed exam cannot be retaken unless the certification has expired, which never applies to SC-900 because fundamentals certifications do not expire.

• Studying SC-900 as a configuration exam and memorising portal click paths and PowerShell cmdlets.
  Every SC-900 objective starts with the verb describe. Learn what each service does and when to choose it. Save the configuration detail for SC-200 or SC-300.
• Confusing the Microsoft Defender products, especially Defender for Identity with Microsoft Entra ID Protection.
  Defender for Identity monitors on-premises Active Directory signals. Entra ID Protection scores risk on cloud identities and sign-ins. Write one flashcard per Defender product naming the asset it protects.
• Treating Azure Firewall, network security groups, and Web Application Firewall as interchangeable network controls.
  Network security groups filter traffic at the subnet and network interface level, Azure Firewall is a stateful managed firewall for the virtual network perimeter, and WAF protects web applications from OWASP-style attacks at layer 7.
• Using a course recorded before the July 28, 2026 skills update and missing the agent ID identity type.
  Check the change log at the bottom of the SC-900 study guide before trusting any third-party course, and read the current Entra documentation for identity types.
• Assuming a scaled score of 700 means answering 70 percent of the questions correctly.
  Microsoft states that 700 is a scaled score that may not equal 70 percent of the points, because the cut score adjusts for the difficulty of the specific question set. Aim well above 70 percent on practice assessments.
• Mixing up the Purview features, particularly retention policies against records management and DLP against sensitivity labels.
  Build one table: sensitivity labels classify and protect, DLP blocks risky sharing, retention keeps or deletes on a schedule, records management declares immutable records, eDiscovery finds content for legal matters, and audit logs who did what.
• Registering with a work or school account and losing the exam records after leaving the employer.
  Microsoft explicitly recommends registering with a personal Microsoft account. Records tied to an organisational account are unrecoverable once the account is removed.
• Planning to look things up on Microsoft Learn during the exam.
  Learn access inside the exam is available on role-based and expert exams only. Fundamentals exams including SC-900 do not have it, so every answer has to come from memory.
• Taking a break mid-exam without answering the questions already on screen.
  Once a break starts, questions seen before it cannot be revisited even if unanswered, and the exam clock keeps running. Answer and clear everything on screen before selecting the break icon.
• Booking online proctoring on a locked-down work laptop and failing the system check on exam day.
  Run Pearson VUE's system test on the exact machine and network you will use, ideally a personal computer with local administrative rights, several days before the appointment.

• Four free Microsoft Learn paths cover it
• Take the free Microsoft practice assessment until you clear 85 percent on every skill area
• Weight your revision to Microsoft security solutions, the largest area at 35-40 percent
• Learn the Defender product split: Endpoint, Office 365, Identity, Cloud Apps, Cloud
• Know which Purview feature does what: sensitivity labels, DLP, retention, eDiscovery, insider risk
• Budget 45 minutes of exam time but book a 65-minute seat, and skip the Learn tab because fundamentals exams do not have it