VRFs
Tunnels
Dynamic Routing
Inter-VLAN routing
Miscellaneous
100

If vrf forwarding is not configured, what routing table does the interface use?

Global routing table

100

Why is GRE not commonly used alone?

Does not provide encryption

100

What does RIPv2 use to calculate the best path?

Hop-count

100

What type of port must you create for router-on-a-stick?

Sub-interfaces
100

Which command(s) could you use to see what configurations are on your device currently?

show running-config

200
What command creates a VRF?

vrf definition {vrf name}

200

Which commands set the tunnel source and destination

tunnel source {ip address}

tunnel destination {ip address}

200

Which type of protocol is OSPF?

Link-state

200

What command turns a layer 2 port into a routable layer 3 port?

no switchport

200

When pinging an IP within VRF BC, all pings fail, what is the likely issue?

Using the global routing table for pinging

300

How does a VRF allow one router to replace multiple devices?

By creating independent routing tables on 1 physical device

300

What kind of topology does DMVPN utilize?

Hub and spoke

300

What is the main advantage of dynamic routing

Automatic adaptation to topology changes

300

What is the primary function of a routing table?

Determine the best path for a network

300

A static route with AD 200 serves as:

A backup route
400

Why are VRFs critical for reducing equipment load in tactical environments?

They allow one device to act as many

400

What protocol enables DMVPN spokes to dynamically learn peer addresses?

NHRP

400

What determines if iBGP or eBGP is being utilized?

iBGP connects the same ASNs, eBGP connects different ASNs

400

What role does a Switch Virtual Interface (SVI) play in Inter-VLAN routing?

The logical default gateway for a VLAN

400

What does the “no switchport” command do on an interface?

Converts the port into a routable Layer 3 port

500

What happens to an interface's IP address when moved into a VRF?

It gets removed and must be re-applied

500

What tunnel mode is used for DMVPN?

tunnel mode gre multipoint

500

What is the primary purpose of a dynamic routing protocol?

To automatically exchange routing information between routers

500

What happens when a router receives a packet for a network not found in its routing table?

The packet is dropped

500
A switch port shows administratively down in show ip interface brief. What command was likely forgotten?

no shutdown