3.7 - Chapter Quiz 3.7.1 - Quiz Single Diagram Chapter 3 Quiz: Switching in an Enterprise Network 1. Which devices can be connected to a VLAN trunk? (Choose three) A. A switch B. A hub C. A router D. A server with a special nic E. A CSU/DSU F. A repeater 2. What happens when there is a topology change on a network that utilises STP? (Choose two) A. User traffic is disrupted until recalculation is complete B. The switch recomputes the spanning tree topology after the network recovers C. All ports are placed in learning state until convergence has occurred D. A delay of up to 50 seconds is incurred for convergence of the new spanning tree topology E. User data is forwarded while BPDUs are exchanged to recompute the topology 3. Refer to the exhibit. Which set of commands should be used for configure the router to provide communication between the two hosts connected to the switch? Router R_1 connected to Switch SW_1 which is also connected to hosts on VLAN 30 and VLAN 40. A: R_1(config)#interface vlan 30 R_1(config-if)#switchport mode trunkdot1q R_1(config-if)#interface vlan 40 R_1(config-if)#switchport mode trunkdot1q B: R_1(config)#interface fastethernet 0/0 R_1(config-if)#mode trunkdot1q 30 40 R_1(config-if)#ip address 192.168.1.1 255.255.255.0 C: R_1(config)#interface vlan 30 R_1(config-if)#ip address 192.168.30.1 255.255.255.0 R_1(config-if)#no shutdown R_1(config-if)#interface vlan 40 R_1(config-if)#ip address 192.168.40.1 255.255.255.0 R_1(config-if)#no shutdown D: R_1(config)#interface fastethernet 0/0 R_1(config-if)#no shutdown R_1(config-if)#interface fastethernet 0/0.3 R_1(config-if)#encapsulationdot1q30 R_1(config-if)#ip address 192.168.30.1 255.255.255.0 R_1(config-if)#interface fastethernet 0/0.4 R_1(config-if)#encapsulationdot1q40 R_1(config-if)#ip address 192.168.40.1 255.255.255.0 4. How do Layer 3 switches differ from traditional routers? A. Layer 3 switches are used in LANs, while routers are used in WANs B. Layer 3 switches are use ASICS for routing , while routers are software based C. Layer 3 switches never perform routing lookups, while routers must always perform them D. Layer 3 switches forward packets based on MAC addressed only, while routers use IP addresses for forwarding 5. Match the switching method to the description (not all options are used) Method A. Store and forward B. Fragment-free C. Multilayer D. Cut through E. Adaptive cur through F. Fast forward Description 1. Recalculates the CRC value 2. Subdivides into two other methods 3. Low cost latency but may forward collision fragments 4. Reads the first 64 bytes of the frame before forwarding 5. Compares the number of errors found to a threshold value 6. Which two problems are caused by redundant links in a switched network? (Choose two) A. Routing table corruption B. Switching loops C. Broadcast storms D. Routing loops E. Corrupt forwarding information base 7. Refer to the exhibit. The switches in the diagram are interconnected by trunked links and are configured with the VTP modes shown. A new VLAN is added to switch one. Which three actions will occur? (choose three) Four switches connected in a row. Switch 1 (server mode), Switch 2 (client mode) Switch 3 (transparent mode) and Switch 4 (server mode). A. Switch 1 will not add the VLAN to its VLAN database and will pass the updates to Switch 2. B. Switch 3 will pass the VTP update to Switch 1. C. Switch 3 will add the VLAN to its VLAN database D. Switch 4 will add the VLAN to its VLAN database E. Switch 4 will not receive the update F. Switch 2 will add the VLAN to its VLAN database and pass the updates to Switch 3. 8. What two criteria does STP use to elect the route bridge in a redundantly switched network? (choose two) A. Amount of switch RAM B. Bridge priority C. Switching speed D. Number of switch ports E. Switch MAS address F. Switch location 9. Following a link failure, when does RSTP allow ports to move to the forwarding state? A. In less than a second B. In two seconds C. In 30 seconds D. In 50 second E. In 90 seconds 10. In what two ways does the use of VLANs benefit an organisation? (choose two) A. By centralising departmental staff and network resources together in a single physical area B. By allowing organisation flexibility grouping users together by function instead of physical location C. By allowing logical separation of voice and other critical traffic from the rest of the data traffic D. By reducing the number of broadcast domains in an enterprise network E. By reducing network management costs by replacing many layer 2 devices with a few layer 3 devices F. By eliminating the need for routing traffic in large networks 11. Refer to the exhibit. Access 1 is a new switch that is to be connected as a VPT client to the network once it has been configured. Given the output generated by the VPT server switch Dist-2, which series of configuration commands would successfully introduce the client switch into the VTP domain? Dist-2# show vtp status VTP version : 2 Configuration Revision: 11 Maximum VLANs supported locally : 250 Number of existing VLANs: 10 VTP Operating Mode : server VTP Domain Name : MYCORP VTP Pruning Mode : Disabled VTP V2 Mode : Enabled VTP Traps Generation : Disabled MDS digest: 0x0B 0xA5 0xDF 0xA7 0x52 0xBD 0x93 0x4D Configuration last modified by 172.16.0.32 at 3-1-93 03:56:18 Local updater ID is 172.16.0.22.on interface V11 (lowest number VLAN interface 4) Dist-2# show vtp password VTP Password: ITrustYou Dist-2# A: Access1(config)#vtp mode client Access1(config)#vtp domain mycorp Access1(config)#vtp password ITrustYou B: Access1(config)#vtp mode client Access1(config)#vtp domain mycorp Access1(config)#vtp version 2 Access1(config)#vtp password ITrustYou C: Access1(config)#vtp mode client Access1(config)#vtp domain mycorp Access1(config)#vtp password ITrustYou D: Access1(config)#vtp mode client Access1(config)#vtp domain Mycorp Access1(config)#vtp version 2 Access1(config)#vtp password ITrustYou 12. What elements will exist in a converged switched network running spanning tree? (Choose two) A. One root bridge per network B. All non-designated ports forwarding C. One root port per non-route bridge D. Multiple designated ports per segment E. One designated port per network 13. How often are spanning-tree BPDUs sent by default? A. Every second B. Every 2 seconds C. Every 3seconds D. Every 4 seconds 14. Refer to the exhibit. A router is configured to connect to a trunked uplink as shown. A packet is received on the FastEthernet 0/1 physical interface from VLAN 1. The packet destination address is 192.168.1.85. What will the router do with the packet? RA(config)#interface fastethernet 0/1 RA(config-if)#no shutdown RA(config-if)#interface fastethernet 0/1.1 RA(config-subif)#encapsulation dot1q 1 RA(config-subif)#ip address 192.168.1.62 255.255.255.224 RA(config-if)# interface fastethernet 0/1.2 RA(config-subif)# encapsulation dot1q 2 RA(config-subif)# ip address 192.168.1.94 255.255.255.224 RA(config-if)# interface fastethernet 0/1.3 RA(config-subif)# encapsulation dot1q 3 RA(config-subif)# ip address 192.168.1.126 255.255.255.224 RA(config-subif)#exit A. The router will ignore the packet because the source and destination are on the same broadcast domain B. The router will forward the packet out interface FastEthernet 0/1.1 C. The router will forward the packet out interface FastEthernet 0/1.2 D. The router will forward the packet out interface FastEthernet 0/1.3 E. The router will drop the packet because not network that includes the destination address is attached to the router