Cheat sheet

Microsoft SC-900 Cheat Sheet

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SCI Concepts

  • 10-15% of exam
  • Shared Responsibility Zero Trust GRC AuthN vs AuthZ Encryption

Microsoft Entra

  • 25-30% of exam
  • Entra ID Authentication Access Management Identity Governance Identity Picker

Microsoft Security

  • 35-40% of exam
  • Azure Security Defender for Cloud Sentinel Defender XDR Security Picker

Microsoft Compliance

  • 20-25% of exam
  • Service Trust Purview Priva DLP Compliance Picker

Quick Facts

  • Exam SC-900
  • Credential SCI Fundamentals
  • Time 45 min
  • Pass 700/1000
  • Level Beginner
  • Provider Pearson VUE
  • Blueprint Nov 7 2025
  • Skill Match capability

Zero Trust CO

  • Verify, least privilege, assume breach
  • Verify explicitly Least privilege Assume breach

AuthN vs AuthZ CO

AuthN

  • Proves identity
  • Before access
  • Passwords MFA certs

AuthZ

  • Grants actions
  • After authentication
  • Roles permissions scopes
  • Who vs what

Security Concepts CO

  • Shared responsibility Provider plus customer
  • Defense in depth Layered controls
  • Zero Trust Never trust automatically
  • Least privilege Minimum required access
  • Assume breach Limit blast radius
  • GRC Govern risk comply
  • CIA Confidentiality integrity availability
  • Perimeter Identity now central

Hashing vs Encryption CO

Hashing

  • One-way
  • Fixed digest
  • Integrity proof

Encryption

  • Reversible
  • Key required
  • Confidentiality protection
  • Verify vs hide

Crypto + Identity CO

  • Encryption Reversible with key
  • Hashing One-way digest
  • At rest Stored data
  • In transit Moving data
  • In use Processing data
  • Authentication Proves identity
  • Authorization Grants actions
  • Federation Trusted identity provider

Entra Flow EN

  • Identity -> AuthN -> CA -> AuthZ
  • Identity: who AuthN: prove CA: decide AuthZ: allow

Entra Roles vs RBAC EN

Entra roles

  • Directory actions
  • Users groups apps
  • Tenant scope

Azure RBAC

  • Resource actions
  • Subscriptions resources
  • Azure scope
  • Directory vs resources

Identity Picker EN

  • Need cloud identity → Entra ID
  • Require extra proof → MFA
  • Forget passwords → SSPR
  • Context-based access → Conditional Access
  • Temporary admin → PIM
  • Review access → Access reviews
  • Detect identity risk → ID Protection
  • Package access → Entitlement management

Entra Basics EN

  • Entra ID Cloud identity
  • Tenant Dedicated directory
  • User Human identity
  • Group Identity collection
  • Device Managed endpoint
  • Service principal App identity
  • Managed identity Azure resource identity
  • Hybrid identity Cloud plus on-prem

Conditional Access vs PIM EN

Conditional Access

  • Access conditions
  • Signals decisions
  • Grant block require

PIM

  • Privileged roles
  • Just-in-time
  • Approval activation
  • Access gate vs admin elevation

Authentication EN

  • MFA Extra verification
  • Passwordless No password login
  • FIDO2 Security key
  • Authenticator Phone approval
  • SSPR User password reset
  • Password Protection Block weak passwords
  • Smart lockout Brute-force defense
  • SSO One sign-in

Access + Governance EN

  • Conditional Access Signal-based policy
  • Entra roles Directory permissions
  • Azure RBAC Resource permissions
  • PIM Just-in-time admin
  • Access reviews Periodic access checks
  • Entitlement management Access packages
  • ID Protection Risk detection
  • Lifecycle workflows Joiner mover leaver

Defender Map SE

  • Cloud, endpoint, email, apps, identity
  • Cloud: posture Endpoint: devices O365: email Apps: SaaS

Defender Cloud vs Sentinel SE

Defender Cloud

  • Cloud posture
  • Workload protection
  • Recommendations

Sentinel

  • SIEM SOAR
  • Cross-source detection
  • Playbooks
  • Posture vs operations

Security Picker SE

  • Cloud posture → Defender for Cloud
  • Security score → Defender for Cloud
  • SIEM needed → Sentinel
  • Automate response → Sentinel playbooks
  • Endpoint threats → Defender Endpoint
  • Email attacks → Defender Office 365
  • SaaS discovery → Defender Cloud Apps
  • Legacy AD attacks → Defender Identity

Azure Security SE

  • DDoS Protection Volumetric attack defense
  • Azure Firewall Network filtering
  • WAF Web app protection
  • VNet Network segmentation
  • NSG Subnet NIC rules
  • Bastion Private VM access
  • Key Vault Secrets keys certs
  • Private Link Private service access

Firewall vs WAF SE

Azure Firewall

  • Network traffic
  • Layer 3-7
  • Central filtering

WAF

  • HTTP apps
  • OWASP defense
  • Web exploits
  • Network vs web

Defender for Cloud SE

  • Defender for Cloud Cloud security management
  • CSPM Posture management
  • CWPP Workload protection
  • Secure score Posture metric
  • Recommendations Hardening actions
  • Security policy Govern standards
  • Regulatory compliance Framework mapping
  • Workload alerts Threat notifications

Microsoft Sentinel SE

  • Sentinel Cloud SIEM SOAR
  • SIEM Collect correlate detect
  • SOAR Automate response
  • Connectors Data ingestion
  • Analytics rules Detect threats
  • Incidents Grouped alerts
  • Workbooks Visual investigation
  • Playbooks Automated actions

Defender XDR SE

  • Defender XDR Unified detection response
  • Defender portal Security operations hub
  • Endpoint Device protection
  • Office 365 Email collaboration protection
  • Cloud Apps SaaS app protection
  • Identity AD signal protection
  • Vulnerability Mgmt Exposure discovery
  • Microsoft Threat Intelligence Threat intelligence

Purview Map CO

  • Classify, protect, retain, investigate
  • Labels classify DLP protects Retention keeps eDiscovery investigates

DLP vs Retention CO

DLP

  • Prevent sharing
  • Sensitive data
  • Policy tips

Retention

  • Keep delete
  • Lifecycle rules
  • Records support
  • Leakage vs lifecycle

Compliance Picker CO

  • Need audit reports → Service Trust
  • Track compliance tasks → Compliance Manager
  • Classify documents → Sensitivity labels
  • Stop leakage → DLP
  • Keep content → Retention policy
  • Declare records → Records management
  • Legal investigation → eDiscovery
  • Privacy requests → Priva

Trust + Privacy CO

  • Service Trust Audit compliance reports
  • Compliance offerings Certifications attestations
  • Trust documents Independent audit evidence
  • Privacy principles Control and transparency
  • Priva Privacy risk management
  • Subject rights Data request handling
  • Data minimization Reduce personal data
  • Privacy assessment Risk discovery

Content vs Activity Explorer CO

Content explorer

  • Inspect items
  • Sensitive content
  • Label visibility

Activity explorer

  • Inspect actions
  • User activity
  • Label events
  • Data vs behavior

Purview Governance CO

  • Purview portal Compliance management hub
  • Compliance Manager Assessment workflow
  • Compliance score Improvement measure
  • Data classification Find sensitive data
  • Content explorer Inspect labeled data
  • Activity explorer Inspect user activity
  • Data map Govern data estate
  • Catalog Discover data assets

Purview Protection CO

  • Sensitivity labels Classify and protect
  • Label policies Publish labels
  • DLP Prevent data leakage
  • Retention policies Keep or delete
  • Retention labels Item-level retention
  • Records management Declare records
  • Insider risk Risky user detection
  • eDiscovery Legal evidence search
  • Audit Activity log review

Common Traps

Identity vs permission

  • Entra signs in ≠ RBAC grants actions

Hash vs encrypt

  • Hash cannot reverse ≠ Encryption can reverse

Role scope trap

  • Entra controls directory ≠ RBAC controls resources

Posture vs SIEM

  • Defender Cloud hardens ≠ Sentinel detects broadly

WAF vs firewall

  • WAF protects HTTP ≠ Firewall filters network

DLP vs labels

  • Labels classify content ≠ DLP blocks movement

Retention vs records

  • Retention keeps deletes ≠ Records declare items

Trust vs compliance

  • Service Trust shows reports ≠ Compliance Manager tracks tasks

Last Minute

  • 1. Weights: 10-15 / 25-30 / 35-40 / 20-25
  • 2. AuthN proves; AuthZ permits
  • 3. Zero Trust: verify least assume
  • 4. Hash = one-way digest
  • 5. Encryption = reversible with key
  • 6. Entra ID = cloud identity
  • 7. CA = signal-based access
  • 8. PIM = temporary privileged roles
  • 9. Defender Cloud = posture
  • 10. Sentinel = SIEM plus SOAR
  • 11. Purview = compliance governance
  • 12. Priva = privacy risk

Microsoft Certified: Security, Compliance, and Identity Fundamentals (SC-900)

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