Cloud Administration/Troubleshooting
Troubleshooting
Objectives and Skills
[edit | edit source]Objectives and skills for the troubleshooting portion of CompTIA Cloud+ certification include:[1]
5.1 Given a scenario, troubleshoot a deployment issue.
- Common issues in the deployments
- Breakdowns in the workflow
- Integration issues related to different cloud platforms
- Resource contention
- Connectivity issues
- Cloud service provider outage
- Licensing issues
- Template misconfiguration
- Time synchronization issues
- Language support
- Automation issues
5.2 Given a scenario, troubleshoot common capacity issues.
- Exceeded cloud capacity boundaries
- Compute
- Storage
- Networking
- IP address limitations
- Bandwidth limitations
- Licensing
- Variance in number of users
- API request limit
- Batch job scheduling issues
- Deviation from original baseline
- Unplanned expansions
5.3 Given a scenario, troubleshoot automation/orchestration issues.
- Breakdowns in the workflow
- Account mismatch issues
- Change management failure
- Server name changes
- IP address changes
- Location changes
- Version/feature mismatch
- Automation tool incompatibility
- Job validation issue
5.4 Given a scenario, troubleshoot connectivity issues.
- Common networking issues
- Incorrect subnet
- Incorrect IP address
- Incorrect gateway
- Incorrect routing
- DNS errors
- QoS issues
- Misconfigured VLAN or VXLAN
- Misconfigured firewall rule
- Insufficient bandwidth
- Latency
- Misconfigured MTU/MSS
- Misconfigured proxy
- Network tool outputs
- Network connectivity tools
- ping
- tracert/traceroute
- telnet
- netstat
- nslookup/dig
- ipconfig/ifconfig
- route
- arp
- ssh
- tcpdump
- Remote access tools for troubleshooting
5.5 Given a scenario, troubleshoot security issues.
- Authentication issues
- Account lockout/expiration
- Authorization issues
- Federation and single sign-on issues
- Certificate expiration
- Certification misconfiguration
- External attacks
- Internal attacks
- Privilege escalation
- Internal role change
- External role change
- Security device failure
- Incorrect hardening settings
- Unencrypted communication
- Unauthorized physical access
- Unencrypted data
- Weak or obsolete security technologies
- Insufficient security controls and processes
- Tunneling or encryption issues
5.6 Given a scenario, explain the troubleshooting methodology.
- Always consider corporate policies, procedures, and impacts before implementing changes
- Identify the problem
- Question the user and identify user changes to computer and perform backups before making changes
- Establish a theory of probable cause (question the obvious)
- If necessary, conduct internal or external research based on symptoms
- Test the theory to determine cause
- Once theory is confirmed, determine the next steps to resolve the problem
- If the theory is not confirmed, reestablish a new theory or escalate
- Establish a plan of action to resolve the problem and implement the solution
- Verify full system functionality and, if applicable, implement preventive measures
- Document findings, actions, and outcomes