About CCNA ICND2 certification: ICND2 (200-101), short for Interconnecting Cisco Networking Devices Part 2 is required to be passed when a candidate is pursuing two-exam CCNA certification path. The other exam that needs to be passed is CCENT. This exam tests a candidate's knowledge and skills required to successfully install, operate, and troubleshoot a small to medium size enterprise branch network. The exam covers topics on VLSM and IPv6 addressing; extending switched networks with VLANs; configuring, verifying and troubleshooting VLANs; the VTP, RSTP, OSPF and EIGRP protocols; determining IP routes; managing IP traffic with access lists; NAT and DHCP; establishing point-to- point connections; and establishing Frame Relay connections.
To verify any configuration change, "show vtp" privileged executive command can be used. This command displays, among other things, VTP domain name, VTP password if any, VTP pruning mode (enabled or disabled) and the IP address of the device that last modified the configuration.
1. The command: show frame-relay pvc 100 displays the traffic statistics for PVC 100. The out put include input packets, output packets, BECN packets, FECN packets, etc.
2. The command show interface serial 0 displays whether the interface is up, line protocol is up, LMI type, LMI DLCI, among other details.
3. The command frame-relay lmi displays the LMI traffic statistics.
4. The command that displays the current map entries is: show frame-relay map.
The command 'show ip ospf interfaces' shows the summary information for OSPF interfaces. The information provided include autonomous system number, router id, designated router id, backup designated router id, hello time, and adjacent neighbors.
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