Chapter 10
Troubleshooting Networking and Security Issues and Understanding Methodologies

THE FOLLOWING COMPTIA CLOUD+ EXAM OBJECTIVES ARE COVERED IN THIS CHAPTER:

•   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...