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Like this article? We recommend 5.0 Infrastructure Services 15%

5.0 Infrastructure Services 15%

5.1 System management

  • 5.1.a Implement and troubleshoot device management
    • 5.1.a [i] Console and VTY
    • 5.1.a [ii] telnet, HTTP, HTTPS, SSH, SCP
    • 5.1.a [iii] [T]FTP
  • 5.1.b Implement and troubleshoot SNMP
    • 5.1.b [i] v2c, v3
  • 5.1.c Implement and troubleshoot logging
    • 5.1.c [i] Local logging, syslog, debug, conditional debug
    • 5.1.c [ii] Timestamp

5.2 Quality of service

  • 5.2.a Implement and troubleshoot end-to-end QoS
    • 5.2.a [i] CoS and DSCP mapping
  • 5.2.b Implement, optimize, and troubleshoot QoS using MQC
    • 5.2.b [i] Classification
    • 5.2.b [ii] Network-based application recognition [NBAR]
    • 5.2.b [iii] Marking using IP precedence, DSCP, CoS, ECN
    • 5.2.b [iv] Policing, shaping
    • 5.2.b [v] Congestion management (queuing)
    • 5.2.b [vi] HQoS, subrate Ethernet link
    • 5.2.b [vii] Congestion avoidance [WRED]

5.3 Network services

  • 5.3.a Implement and troubleshoot first-hop redundancy protocols
    • 5.3.a [i] HSRP, GLBP, VRRP
    • 5.3.a [ii] Redundancy using IPv6 RS/RA
  • 5.3.b Implement and troubleshoot network time protocol
    • 5.3.b [i] NTP master, client, version 3, version 4
    • 5.3.b [ii] NTP authentication
  • 5.3.c Implement and troubleshoot IPv4 and IPv6 DHCP
    • 5.3.c [i] DHCP client, IOS DHCP server, DHCP relay
    • 5.3.c [ii] DHCP options
    • 5.3.c [iii] DHCP protocol operations
    • 5.3.c [iv] SLAAC/DHCPv6 interaction
    • 5.3.c [v] Stateful, stateless DHCPv6
    • 5.3.c [vi] DHCPv6 prefix delegation
  • 5.3.d Implement and troubleshoot IPv4 network address translation
    • 5.3.d [i] Static NAT, dynamic NAT, policy-based NAT, PAT
    • 5.3.d [ii] NAT ALG

5.4 Network optimization

  • 5.4.a Implement and troubleshoot IP SLA
    • 5.4.a [i] ICMP, UDP, jitter, VoIP
  • 5.4.b Implement and troubleshoot tracking object
    • 5.4.b [i] Tracking object, tracking list
    • 5.4.b [ii] Tracking different entities [for example, interfaces, routes, IPSLA, and such]
  • 5.4.c Implement and troubleshoot netflow
    • 5.4.c [i] Netflow v5, v9
    • 5.4.c [ii] Local retrieval
    • 5.4.c [iii] Export (configuration only)
  • 5.4.d Implement and troubleshoot embedded event manager
    • 5.4.d [i] EEM policy using applet

5.5 Troubleshooting infrastructure services

  • 5.5.a Use IOS troubleshooting tools
    • 5.5.a [i] debug, conditional debug
    • 5.5.a [ii] ping, traceroute with extended options
    • 5.5.a [iii] Embedded packet capture
  • 5.5.b Apply troubleshooting methodologies
    • 5.5.b [i] Diagnose the root cause of networking issue (analyze symptoms, identify and describe root cause)
    • 5.5.b [ii] Design and implement valid solutions according to constraints
    • 5.5.b [iii] Verify and monitor resolution
  • 5.5.c Interpret packet capture
    • 5.5.c [i] Using wireshark trace analyzer
    • 5.5.c [ii] Using IOS embedded packet capture

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