CompTIA CV0-003 Practice Test Pdf Exam Material [Q25-Q39]

Cloud Architecture and Design – 13%

• Public
• Private
• Hybrid
• Community
• Cloud within a cloud
• Multicloud
• Multitenancy

– Service models

• Infrastructure as a Service (IaaS)
• Platform as a Service (PaaS)
• Software as a Service (SaaS)

– Advanced cloud services

• Internet of Things (IoT)
• Serverless
• Machine learning/Artificial intelligence (AI)

– Shared responsibility model

• Hardware
• Software
• Budgetary
• Business need analysis

– Standard templates

• Per-user
• Socket-based
• Volume-based
• Core-based
• Subscription

– Licensing
– User density
– System load
– Trend analysis

• Baselines
• Patterns
• Anomalies

– Performance capacity planning

• Affinity
• Anti-affinity

– Oversubscription

• Compute
• Network
• Storage

– Regions and zones
– Applications
– Containers
– Clusters
– High availability of network functions

• Switches
• Routers
• Load balancers
• Firewalls

– Avoid single points of failure
– Scalability

• Auto-scaling
• Horizontal scaling
• Vertical scaling
• Cloud bursting

• Software
• Hardware
• Integration
• Budgetary
• Compliance
• Service-level agreement (SLA)
• User and business needs
• Security
• Network requirements
  1. Sizing
  2. Subnetting
  3. Routing

– Environments

• Development
• Quality assurance (QA)
• Staging
• Blue-green
• Production
• Disaster recovery (DR)

– Testing techniques

• Vulnerability testing
• Penetration testing
• Performance testing
• Regression testing
• Functional testing
• Usability testing

Security – 20%

• Privileged access management
• Logical access management
• Account life-cycle management
  1. Provision and deprovision accounts
• Access controls
  1. Role-based
  2. Discretionary
  3. Non-discretionary
  4. Mandatory

– Directory services

• Lightweight directory access protocol (LDAP)

– Federation
– Certificate management
– Multifactor authentication (MFA)
– Single sign-on (SSO)

• Security assertion markup language (SAML)

– Public key infrastructure (PKI)
– Secret management
– Key management

• Virtual LAN (VLAN)/Virtual extensible LAN (VXLAN)/Generic network virtualization encapsulation (GENEVE)
• Micro-segmentation
• Tiering

– Protocols

• Domain name service (DNS)
  1. DNS over HTTPS (DoH)/DNS over TLS (DoT)
  2. DNS security (DNSSEC)
• Network time protocol (NTP)
  1. Network time security (NTS)
• Encryption
  1. IPSec
  2. Transport layer security (TLS)
  3. Hypertext transfer protocol secure (HTTPS)
• Tunneling
  1. Secure Shell (SSH)
  2. Layer 2 tunneling protocol (L2TP)/Point-to-point tunneling protocol (PPTP)
  3. Generic routing encapsulation (GRE)

– Network services

• Firewalls
  1. Stateful
  2. Stateless
• Web application firewall (WAF)
• Application delivery controller (ADC)
• Intrusion protection system (IPS)/Intrusion detection system (IDS)
• Data loss prevention (DLP)
• Network access control (NAC)
• Packet brokers

– Log and event monitoring
– Network flows
– Hardening and configuration changes

• Disabling unnecessary ports and services
• Disabling weak protocols and ciphers
• Firmware upgrades
• Control ingress and egress traffic
  1. Allow list (previously known as whitelisting) or blocklist (previously known as blacklisting)
  2. Proxy servers
• Distributed denial of service (DDoS) protection

• Password complexity
• Account lockout
• Application approved list (previously known as whitelisting)
• Software feature
• User/group

– User permissions
– Antivirus/anti-malware/endpoint detection and response (EDR)
– Host-based IDS (HIDS)/Host-based IPS (HIPS)
– Hardened baselines

• Single function

– File integrity
– Log and event monitoring
– Configuration management
– Builds

• Stable
• Long-term support (LTS)
• Beta
• Canary

– Operating system (OS) upgrades
– Encryption

• Application programming interface (API) endpoint
• Application
• OS
• Storage
• Filesystem

– Mandatory access control
– Software firewall

• Hashing algorithms
• Digital signatures
• File integrity monitoring (FIM)

– Classification
– Segmentation
– Access control
– Impact of laws and regulations

• Legal hold

– Records management

• Versioning
• Retention
• Destruction
• Write once read many

– Data loss prevention (DLP)
– Cloud access security broker (CASB)

• Vulnerability scanners
• Port scanners

– Vulnerability assessment

• Default and common credential scans
• Credentialed scans
• Network-based scans
• Agent-based scans
• Service availabilities

– Security patches

• Hot fixes
• Scheduled updates
• Virtual patches
• Signature updates
• Rollups

– Risk register
– Prioritization of patch application
– Deactivate default accounts
– Impacts of security tools on systems and services
– Effects of cloud service models on security implementation

• Documentation
• Call trees
• Training
• Tabletops
• Documented incident types/categories
• Roles and responsibilities

– Incident response procedures

• Identification
  1. Scope
• Investigation
• Containment, eradication, and recovery
  1. Isolation
  2. Evidence acquisition
  3. Chain of custody
  4. Root cause analysis
• Post-incident and lessons learned

Deployment – 23%

• File subscriptions
• Communications
  1. Email
  2. Voice over IP (VoIP)
  3. Messaging
• Collaboration
• Virtual desktop infrastructure (VDI)
• Directory and identity services
• Cloud resources
  1. IaaS
  2. PaaS
  3. SaaS

– Provisioning resources

• Compute
• Storage
• Network

– Application

• Serverless

– Deploying virtual machines (VMs) and custom images
– Templates

• OS templates
• Solution templates

– Identity management
– Containers

• Configure variables
• Configure secrets
• Persistent storage

– Auto-scaling
– Post-deployment validation

• Block
  1. Storage area network (SAN)
  – Zoning
• File
  1. Network attached storage (NAS)
• Object
  1. Tenants
  2. Buckets

– Tiers

• Flash
• Hybrid
• Spinning disks
• Long-term

– Input/output operations per second (IOPS) and read/write
– Protocols

• Network file system (NFS)
• Common Internet file system (CIFS)
• Internet small computer system interface (iSCSI)
• Fibre Channel (FC)
• Non-volatile memory express over fabrics (NVMe-oF)

– Redundant array of inexpensive disks (RAID)

• 0
• 1
• 5
• 6
• 10

– Storage system features

• Compression
• Deduplication
• Thin provisioning
• Thick provisioning
• Replication

– User quotas
– Hyperconverged
– Software-defined storage (SDS)

• Dynamic host configuration protocol (DHCP)
• NTP
• DNS
• Content delivery network (CDN)
• IP address management (IPAM)

– Virtual private networks (VPNs)

• Site-to-site
• Point-to-point
• Point-to-site
• IPSec
• Multiprotocol label switching (MPLS)

– Virtual routing

• Dynamic and static routing
• Virtual network interface controller (vNIC)
• Subnetting

– Network appliances

• Load balancers
• Firewalls

– Virtual private cloud (VPC)

• Hub and spoke
• Peering

– VLAN/VXLAN/GENEVE
– Single root input/output virtualization (SR-IOV)
– Software-defined network (SDN)

• Hypervisors
  1. Type 1
  2. Type 2
• Simultaneous multi-threading (SMT)
• Dynamic allocations
• Oversubscription

– Central processing unit (CPU)/virtual CPU (vCPU)
– Graphics processing unit (GPU)

• Virtual
  1. Shared
• Pass-through

– Clock speed/Instructions per cycle (IPC)
– Hyperconverged
– Memory

• Dynamic allocation
• Ballooning

• Vendor lock-in
• PaaS or SaaS migrations
  1. Access control lists (ACLs)
  2. Firewalls

– Storage migrations

• Block
• File
• Object

– Database migrations

• Cross-service migrations
• Relational
• Non-relational

Operations and Support – 22%

• Collectors
  1. Simple network management protocol (SNMP)
  2. Syslog
• Analysis
• Severity categorization
• Audits
• Types
  1. Access/authentication
  2. System
  3. Application
• Automation
• Trending

– Monitoring

• Baselines
• Thresholds
• Tagging
• Log scrubbing
• Performance monitoring
  1. Application
  2. Infrastructure components
• Resource utilization
• Availability
  1. SLA-defined uptime requirements
• Verification of continuous monitoring activities
• Service management tool integration

– Alerting

• Common messaging methods
• Enable/disable alerts
  1. Maintenance mode
• Appropriate responses
• Policies for categorizing and communicating alerts

• Roadmaps
• Old/current/new versions
• Upgrading and migrating systems
• Deprecations or end of life

– Change management
– Asset management

• Configuration management database (CMDB)

– Patching

• Features or enhancements
• Fixes for broken or critical infrastructure or applications
• Scope of cloud elements to be patched
  1. Hypervisors
  2. VMs
  3. Virtual appliances
  4. Networking components
  5. Applications
  6. Storage components
  7. Firmware
  8. Software
  9. OS
• Policies
  1. n-1
• Rollbacks

– Impacts of process improvements on systems
– Upgrade methods

• Rolling upgrades
• Blue-green
• Canary
• Active-passive
• Development/QA/production/DR

– Dashboard and reporting

• Tagging
• Costs
  1. Chargebacks
  2. Showbacks
• Elasticity usage
• Connectivity
• Latency
• Capacity
• Incidents
• Health
• Overall utilization
• Availability

• Auto-scaling
• Horizontal scaling
• Vertical scaling
• Cloud bursting

– Compute

• CPUs
• GPUs
• Memory
• Containers

– Storage

• Tiers
  1. Adaptive optimization
• IOPS
• Capacity
• Deduplication
• Compression

– Network

• Bandwidth
• Network interface controllers (NICs)
• Latency
• SDN
• Edge computing
  1. CDN

– Placement

• Geographical
• Cluster placement
• Redundancy
• Colocation

– Device drivers and firmware

• Generic
• Vendor
• Open source

• Infrastructure components and their integration

– Continuous integration/continuous deployment (CI/CD)
– Version control
– Configuration management

• Playbook

– Containers
– Automation activities

• Routine operations
• Updates
• Scaling
• Shutdowns
• Restarts
• Create internal APIs

– Secure scripting

• No hardcoded passwords
• Use of individual service accounts
• Password vaults
• Key-based authentication

– Orchestration sequencing

• Incremental
• Differential
• Full
• Synthetic full
• Snapshot

– Backup objects

• Application-level backup
• Filesystem backup
• Database dumps
• Configuration files

– Backup targets

• Tape
• Disk
• Object

– Backup and restore policies

• Retention
• Schedules
• Location
• SLAs
• Recovery time objective (RTO)
• Recovery point objective (RPO)
• Mean time to recovery (MTTR)
• 3-2-1 rule
  1. Three copies of data
  2. Two different media
  3. One copy off site

– Restoration methods

• In place
• Alternate location
• Restore files
• Snapshot

• Hot
• Warm
• Cold

– Requirements

• RPO
• RTO
• SLA
• Corporate guidelines

– Documentation

• DR kit
• Playbook
• Network diagram

– Geographical datacenter requirements

Troubleshooting – 22%

1. Identify the problem
   – Question the user and identify user changes to the computer and perform backups before making changes
   – Inquire regarding environmental or infrastructure changes
2. Establish a theory of probable cause (question the obvious)
   – If necessary, conduct external or internal research based on symptoms
3. Test the theory to determine cause
   – Once the theory is confirmed, determine the next steps to resolve the problem
   – If the theory is not confirmed, re-establish a new theory or escalate
4. Establish a plan of action to resolve the problem and implement the solution
5. Verify full system functionality and, if applicable, implement preventive measures
6. Document the findings, actions, and outcomes throughout the process.

• Missing
• Incomplete
• Escalation
• Keys

– Authentication
– Authorization
– Security groups

• Network security groups
• Directory security groups

– Keys and certificates

• Expired
• Revoked
• Trust
• Compromised
• Misconfigured

– Misconfigured or misapplied policies
– Data security issues

• Unencrypted data
• Data breaches
• Misclassification
• Lack of encryption in protocols
• Insecure ciphers

– Exposed endpoints
– Misconfigured or failed security appliances

• IPS
• IDS
• NAC
• WAF

– Unsupported protocols
– External/internal attacks