Fundamentals of WANs and IP Routing Quiz

What is the primary difference between a leased line and a circuit-switched WAN?

• Leased lines are packet-switched

• Circuit-switched WANs provide permanent physical circuits

• Leased lines provide constant availability

• Circuit-switched WANs are always-on

In a Frame Relay network, what identifies a virtual circuit?

• IP address

• DLCI

• MAC address

• Subnet ID

What layer of the OSI model does Frame Relay operate at?

• Physical

• Data Link

• Network

• Transport

Which protocol is commonly used to provide dynamic addressing for WAN interfaces?

• RIP

• DHCP

• PPP

• OSPF

What is the purpose of split-horizon in distance-vector routing protocols?

• Prevent routing loops

• Increase convergence speed

• Reduce packet size

• Balance the load

How does OSPF calculate the best path?

• Hop count

• Bandwidth

• Delay

• Cost

Which routing protocol uses administrative distance to select routes?

• RIP

• OSPF

• EIGRP

• All of the above

What is the default administrative distance of OSPF?

• 90

• 110

• 120

• 100

What does the term 'autonomous system' refer to in routing?

• Group of VLANs

• Logical router domain

• Group of networks under common administration

• Routing domain without NAT

What type of route is manually configured by a network administrator?

• Static route

• Default route

• Dynamic route

• Summary route