The document outlines key architecture and infrastructure concepts related to availability, security, and data protection. It discusses various models such as cloud services and microservices, alongside strategies for data classification and protection. The content also covers resilience and recovery strategies to ensure continuous operation and security in enterprise infrastructure.

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2. Architecture and
Infrastructure
Concepts
Considerations
Availability: System uptime and accessibility
Patch Availability: Access to updates
Resilience: Withstanding disruptions
Risk Transference: Shifting risks to third parties
Cost: Financial expenditure
Ease of Deployment: Simple system launch
Responsiveness: Reaction time
Scalability: Growth with demand
3.1: SECURITY IMPLICATIONS OF DIFFERENT
ARCHITECTURE MODELS
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Cloud: On-demand remote computing resources
Infrastructure as Code (IaC): Automated
infrastructure provisioning
Serverless: Function-based cloud services
Microservices: Modular, deployable services
Network Infrastructure: Hardware and
software network components
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3.2: SECURITY PRINCIPLES TO SECURE
ENTERPRISE INFRASTRUCTURE
Infrastructure
Considerations
Network
Appliances
Firewall
Types
Secure
Communication/
Access
Security Zones: Defined security segments
Attack Surface: Potential vulnerabilities
Failure Modes: System failure types
Device Attribute: Active and passive attributes
Virtual Private Network (VPN): Encrypted network
access
Remote Access: Distant system entry
Tunneling: Secure data passage
Secure Access Service Edge (SASE): Unified
security framework
Proxy Server: Traffic intermediary
IPS/IDS: Threat monitoring systems
Load Balancer: Traffic distribution
Sensor: Monitoring device
Port Security: Control access via ports
Web Application Firewall (WAF): Web traffic protection
Next-Generation Firewall (NGFW):
Advanced security firewall

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Data Types
Data
Classifications
3.3 DATA PROTECTION CONCEPTS AND STRATEGIES
Regulated Data: Legally controlled information
Human and Non-Human-Readable Data: Text and
binary formats
Trade Secret: Proprietary business information
Financial Information: Banking and monetary records
Intellectual Property: Copyrighted or patented
content
Legal Information: Attorney-client privileged data
Sensitive Data: Requires special protection
Critical Data: Essential for operations
Confidential Data: Restricted to certain individuals
Private Data: Personal or sensitive information
Public Data: Openly accessible information
Restricted Data: Limited access information

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3.3 DATA PROTECTION CONCEPTS AND STRATEGIES
General Data
Considerations
Methods to
Secure Data
Geographic Restrictions: Location-based
data access
Permission Restrictions: Access control limits
Encryption: Secure data encoding
Segmentation: Isolating data sections
Hashing: Data integrity verification
Obfuscation: Making data unintelligible
Masking: Concealing sensitive information
Tokenization: Replacing data with tokens
Data States: In use, transit, storage
Data Sovereignty: Jurisdictional data control
Geolocation: Data location specifics

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3.4: RESILIENCE AND RECOVERY IN
SECURITY ARCHITECTURE
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High
Availability
Backups
Platform Diversity: Multiple technology platforms used
Testing
Multi-Cloud Systems: Utilizing multiple cloud providers
Continuity of Operations: Ensuring ongoing business functionality
Load Balancing: Distributing traffic among servers
Clustering: Grouping servers for redundancy
Tabletop Exercise: Discussion-based emergency scenarios
Failover: Automatic switching to backup system
Simulation: Realistic, practice disaster scenarios
Parallel Processing: Simultaneous system operation testing
Onsite/Offsite: Local and remote backup storage
Frequency: Regular backup intervals
Recovery: Restoring from backup data
Replication: Real-time data duplication
Journaling: Logging changes for recovery

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