Router Quiz for the Layer 3 connoisseur

What is the main function of a router ?

• A. Determine the best path to send packets.

• B. Distribute packets in the network

• C. Forward Packets to their destinations

• Both A and B

When router receives a packet, it determines the best path by:

• opening the packet and then eating it.

• decapsulating the packet, storing the information and then checking the address table.

• encapsulating the packet, adding the mac address and then Hoping for the best.

• checking destination address of packet and then checking routing table.

What is known as routing ?

• When IP packets from source is sent to the router and forwarded by router using a pre-determined interface.

• When information is sent from source to router and information of path recorded.

• When IP packets from destination is sent to the router and received by source using an unknown interface.

While building a routing table, what are the 3 concepts made to be considered in the router based network ?

• 1. Router Topology Network

  2. Connection status of devices

  3. Static Networks

• 1. Dynamic Networks

  2. Static Networks

  3. Sub Networks and Main Networks

• 1. Directly Connected Networks

  2. Remote Networks

  3. Default Route

What is the purpose of the "ip route" command in Cisco IOS ?

{Router(config)# ip route <ipv4 address> <subnet mask>}

• To configure a default route on the router

• To configure a static route on the router

• To enable dynamic routing protocols on the router

• To configure VLANs on the router

What does "s0/0/0" represent in the command " Router1(config)# ip route 192.168.1.1 255.255.255.0 s0/0/0 " ?

• The IP address of the next-hop router

• The interface used to reach the next-hop router

• The subnet mask for the destination network

• The administrative distance of the route

Answer explanation

Here, "s0/0/0" represents the interface used to reach the next-hop router. Here, the traffic destined for the 192.168.1.0/24 network will be forwarded out of the "s0/0/0" router interface the next-hop router.

What is the purpose of the command "Router(config)# ip address 192.168.1.1 255.255.255.0 "?

• To configure a default gateway on the router

• To configure a subnet mask on the router

• To configure an IPv6 address on the router

• To configure an IPv4 address on the router

Answer explanation

To configure an IPv4 address "ip address" command is used to assign an IPv4 address to a specific interface on a router

What is the purpose of the command "Router(config)# ipv6 address 2001:db8:1111:cafe:0010::1/64"?

• To configure a subnet mask on the router

• To configure an IPv6 EUI based address on the router

• To configure an IPv6 address on the router

• To configure a default gateway on the router

What is the purpose of the command "Router(config)# ip address fe80::a2:1"?

• To enable Link-Local addressing on the router and interfaces

• To assign an IPv6 address to the interface

• To enable Link-Local addressing on the interface

• To configure a static route on the router

What is the command to, Add the logging synchronous command to the console and virtual terminal lines of all the routers.