Q. What does it mean to have fast or autonomous switching "enabled" and "disabled" on the same interface?
Ethernet 6 is up, line protocol is up Internet address is 18.104.22.168, subnet mask is 255.255.255.0 Broadcast address is 22.214.171.124 Address determined by non-volatile memory MTU is 1500 bytes Helper address is 126.96.36.199 Outgoing access list is not set Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP autonomous switching is enabled IP autonomous switching on the same interface is disabled^^^^^^^^^^^^^^^^^^^^^^^^^^^ Gateway Discovery is disabled IP accounting is disabled TCP/IP header compression is disabled Probe proxy name replies are disabled
Q. How is the load shared between two parallel lines of equal capacity when these lines are configured for load balancing?
IGRP: broadcasting request on Ethernet0 IGRP: broadcasting request on Ethernet1 IGRP: broadcasting request on Ethernet2 IGRP: broadcasting request on Ethernet3
Q. What is the difference between the ip default-gateway, ip default-network, and ip route 0.0.0.0/0 commands?
Q. Enhanced Interior Gateway Routing Protocol (EIGRP) redistributes with the IGRP IP routing protocol automatically. Does EIGRP also interact with the Routing Information Protocol (RIP) IP routing protocol?
Q. How do I configure my router to prefer an Open Shortest Path First (OSPF) route over an EIGRP route when the route is learned from both sources?
Q. Does the use of extended IP access control lists (ACLs) filter regular routing updates (such as OSPF)? Do I need to explicitly permit the multicast IPs used by routing protocols (such as 188.8.131.52 and 184.108.40.206, in the case of OSPF) for updates to ensure the proper working of routing protocols?
access-list 102 permit udp any any eq ripaccess-list 102 permit igrp any anyaccess-list 102 permit eigrp any anyaccess-list 102 permit ospf any anyaccess-list 102 permit tcp any any eq 179 access-list 102 permit tcp any eq 179 any
Q. Does the interface subcommand no arp arpa disable the Address Resolution Protocol (ARP) function for a router interface?
Q. Would it be possible to configure a router for a 255.255.254.0 Ethernet and a 255.255.252.0 serial subnet? Does IGRP/RIPv1 support variable subnetting?
interface ethernet 0 ip access-group 1 in ip access-group 2 out
Q. Can I configure two interfaces in the same subnet (t0 = 220.127.116.11/24 and t1 18.104.22.168/24)?
Q. Is it possible to have duplicate ip addresses for two serial interfaces that belong to the same router?
Q. I have primary and secondary IP addresses configured on an Ethernet interface and my router is running RIP (a distance vector routing protocol). How does split-horizon affect the routing updates?
Q. Is there a performance advantage when using the the IP access list keyword established on an extended ACL? Does using "established" make the access list more vulnerable? Do you have specific examples of the usage?
Q. I have four equal cost parallel paths to the same destination. I am doing fast switching on two links and process switching on the other two. How will the packets be routed in this situation?
Q. What is Unicast Reverse Path Forwarding (uRPF)? Can a default route 0.0.0.0/0 be used to perform a uRPF check?
Q. Who does load-balancing when there are multiple links to a destination, Cisco Express Forwarding (CEF), or the routing protocol?
Q. What are the maximum number of secondary IP addesses that can be configured on a router interface?
Q. Can you configure different MTU for subinterfaces under the same main interface? How do 7500/GSR/ESR routers behave in this scenario?