4.0 Network Management

4.1 Explain the purpose and features of various network appliances.

• Load balancer
• Proxy server
• Content filter
• VPN concentrator

4.2 Given a scenario, use appropriate hardware tools to troubleshoot connectivity issues.

• Cable tester
• Cable certifier
• Crimper
• Butt set
• Toner probe
• Punch down tool
• Protocol analyzer
• Loop back plug
• TDR
• OTDR
• Multimeter
• Environmental monitor

4.3 Given a scenario, use appropriate software tools to troubleshoot connectivity issues.

• Protocol analyzer
• Throughput testers
• Connectivity software
• Ping
• Tracert/traceroute
• Dig
• Ipconfig/ifconfig
• Nslookup
• Arp
• Nbtstat
• Netstat
• Route

4.4 Given a scenario, use the appropriate network monitoring resource to analyze traffic.

• SNMP
• SNMPv2
• SNMPv3
• Syslog
• System logs
• History logs
• General logs
• Traffic analysis
• Network sniffer

4.5 Describe the purpose of configuration management documentation.

• Wire schemes
• Network maps
• Documentation
• Cable management
• Asset management
• Baselines
• Change management

4.6 Explain different methods and rationales for network performance optimization.

• Methods:
  • QoS
  • Traffic shaping
  • Load balancing
  • High availability
  • Caching engines
  • Fault tolerance
  • CARP
• Reasons:
  • Latency sensitivity
  • High bandwidth applications (VoIP, video applications, unified communications)
  • Uptime