Chapter Description

In this sample thing from Switching, Routing, and Wireless Essentials Companion Guide (CCNAv7) because that Cisco Networking Academy students, you will certainly learn just how to troubleshoot usual inter-VLAN construction issues.

You are watching: What is a disadvantage of using router-on-a-stick inter-vlan routing?

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Switching, Routing, and Wireless Essentials Companion overview (CCNAv7)

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Check Your expertise Questions

Complete every the review questions provided here to test your expertise of the sections and also concepts in this chapter. The attachment “Answers come the ‘Check your Understanding’ Questions” lists the answers.

1. A router has two FastEthernet interfaces and also needs to connect to four VLANs in the regional network. How deserve to this be completed using the fewest number of physical interfaces there is no unnecessarily decreasing network performance?

Add a 2nd router to handle the inter-VLAN traffic.

Implement a router-on-a-stick configuration.

Interconnect the VLANs via the two additional FastEthernet interfaces.

Use a hub to attach the four VLANS v a FastEthernet user interface on the router.

2. What distinguishes traditional legacy inter-VLAN routing indigenous router-on-a-stick?

Traditional routing is able to use only a solitary switch interface, whereas a router-on-a-stick have the right to use multiple move interfaces.

Traditional routing needs a routing protocol, vice versa, a router-on-a-stick only demands to course directly linked networks.

Traditional routing supplies one port per logical network, conversely, a router-on-a-stick supplies subinterfaces to attach multiple logical networks come a solitary router port.

Traditional routing provides multiple courses to the router and therefore requires STP, vice versa, router-on-a-stick go not carry out multiple connections and also therefore eliminates the require for STP.

3. Subinterface G0/1.10 top top R1 should be configured together the default gateway for the VLAN 10 network. I beg your pardon command need to be configured ~ above the subinterface to allow inter-VLAN routing because that VLAN 10?

encapsulation dot1q 10

encapsulation vlan 10

switchport mode access

switchport setting trunk

4. What is necessary to consider while configuring the subinterfaces of a router once implementing inter-VLAN routing?

The IP attend to of each subinterface should be the default gateway resolve for every VLAN subnet.

The no shutdown command have to be offered on each subinterface.

The physical user interface must have an IP resolve configured.

The subinterface number must complement the VLAN i would number.

5. What are the measures that should be completed in order to enable inter-VLAN routing utilizing router-on-a-stick?

Configure the physical interfaces ~ above the router and allow a routing protocol.

Create the VLANs top top the router and define the port membership assignments on the switch.

Create the VLANs on the switch to incorporate port membership assignment and permit a routing protocol ~ above the router.

Create the VLANs top top the switch to incorporate port membership assignment and also configure subinterfaces ~ above the router equivalent the VLANs.

6. What two statements room true about the usage of subinterfaces because that inter-VLAN routing? (Choose two.)

Fewer router Ethernet ports required than in traditional inter-VLAN routing

Less facility physical link than in classic inter-VLAN routing

More switch ports forced than in classic inter-VLAN routing

Simpler layer 3 troubleshooting 보다 with timeless inter-VLAN routing

Subinterfaces have actually no contention because that bandwidth

7. i beg your pardon router-on-a-stick command and prompt top top R1 correctly encapsulates 802.1Q web traffic for VLAN 20?

R1(config-if)# encapsulation 802.1q 20

R1(config-if)# encapsulation dot1q 20

R1(config-subif)# encapsulation 802.1q 20

R1(config-subif)# encapsulation dot1q 20

8. What space two disadvantages of utilizing the router-on-a-stick inter-VLAN routing method in a large network? (Choose two.)

A committed router is required.

It does not scale well.

It requires multiple physics interfaces ~ above a router.

It requires subinterfaces to it is in configured on the exact same subnets.

Multiple SVIs are needed.

9. What is a characteristic of a routed harbor on a layer 3 switch? (Choose two.)

It needs the switchport mode accessibility interface config command.

It calls for the no switchport interface config command.

It needs the switchport access vlan vlan-id interface config command.

It supports trunking.

10. What room two benefits of making use of a great 3 switch with SVIs for inter-VLAN routing? (Choose two.)

A router is not required.

It switches packets faster than making use of the router-on-a-stick method.

SVIs have the right to be bundled into EtherChannels.

SVIs deserve to be separated using subinterfaces.

SVIs get rid of the require for a default gateway in the hosts.


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