When “encapsulation frame-relay” command is issued on an interface, the router will learn all the DLCIs associated with that interface via LMI updates. Then once an IP address is configured on the…
Category: CCNA R&S
Routing and Switching
BGP – Things to Remember
1. BGP uses TCP port 179 for transport. Router with the higher BGP router-id initiates BGP session from a random port. 2. The interface from which the BGP router ID is taken…
IGP – Things to Remember
1. Routing occurs by finding the longest match in the routing table and by recursing to the outgoing interface. 2. We can debug the transiting traffic by enabling the process switching. But…
EIGRP – Things to Remember
1. The IP header of an EIGRP packet specifies protocol number 88. 2. To establish neighbor relationship, the neighbors must be in the same IP subnet. While EIGRP supports secondary IP addresses…
OSPF – Things to Remember
1. The IP header of an OSPF packet specifies protocol number 89. 2. To establish OSPF neighbor adjacency, hello/dead timers, MTU (otherwise have to use "ip ospf mtu-ignore") must match. Unique router-id…
CCNA 640-802 Bible – Compare and Contrast Methods of Routing and Routing
1. What are two drawbacks of implementing a link-state routing protocol? (Choose two.) A: the sequencing and acknowledgment of link-state packets B: the requirement for a hierarchical IP addressing scheme for optimal…
RIPv2 – Things to Remember
1. The RIP process operates from UDP port 520. 2. The metric used by RIP is hop count, with 1 signifying a directly connected network of the advertising router and 16 signifying…
Cisco Press – CCNA 640-802 Network Simulator(Labs)
CCNA 640-802 Network Simulator helps you develop and improve hands-on configuration and troubleshooting skills without the investment in expensive lab hardware. This state-of-the-art, interactive simulation software allows you to practice your networking…
CCNA 640-802 Bible – Perform and Verify Static or Default Routing
1. The network administrator of the Oregon router adds the following command to the router configuration: ip route 192.168.12.0 255.255.255.0 172.16.12.1. What are the results of adding this command? (Choose two.)