Read the summary and the most important questions on ENCOR

• 2 Cisco switching paths

• 2.6 Analyze CEF

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• With what two commands do you inspect the content of the FIB and adjacency tables on a router?

  show ip cef and show adjacency

• What command shows that there is an entry in the FIB table for every network that the router knows about—that is, for every entry in the routing table, there is already a preconfigured entry in the FIB table

  Show ip cef

• When using the show adjacency command, what can be a reason for the adjacency table being empty?

  no entries in arp table because no traffic yet
  
   The adjacency table is built from the ARP table. Because you have not generated any traffic yet, there are no entries in the ARP table, and, therefore, the adjacency table is also empty.

• What command verifies that Cisco Express Forwarding is enabled for interface Ethernet 0/0 on a router

  HQ# show ip interface ethernet 0/0 IP CEF switching is enabled

• What command disables CEF on int eth0/0 on a router?

  HQ(config)# interface ethernet 0/0 HQ(config-if)# no ip route-cache cef

• 23 Network analysis tools

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• Which commands  help monitor installation behavior and normal network behavior, and isolate problem areas?

  Show

• Which command helps determine connectivity between devices on your network

  Ping

• which command provides a method of determining the route by which packets reach their destination from one device to another?

  Traceroute

• Which commands help in the isolation of protocol and configuration problems?

  Debug

• Which measurements allow network engineers to verify service guarantees?

  Cisco IP SLA