Name: __________________________ Date: _____________1. Which of the following is not true about backbone networks?A) They may also be called enterprise networks if they connect all networks within an organization.B) They typically connect many networks, including LANs.C) They typically provide connections to other BNs, WANs, MANs, and the Internet.D) They may also be called campus networks if they connect many BNs spanning several buildings as a single location.E) They tend to use lower speed circuits than LANs.2. Which of the following is not a type of hardware device that can be used to interconnectnetworks?A) switchesB) routersC) multiprotocol routersD) 'dumb' terminalsE) gateways3. Switches:A) learn addresses by reading the source and destination addressesB) operate at the physical layer onlyC) connect two ore more network segments that use different data link protocolsD) connect two or more network segments that use different network protocolsE) have become more popular than layer 2 switches4. Routers:A) operate at the application layerB) operate only at the physical layerC) cannot connect two or more networks that use the same type of cablePage 1D) may also be called TCP/IP gatewaysE) operate only at the data link layer5. Which of the following is not a way that a router differs from a switch?A) routers can connect two or more networks that use the same data link protocolB) routers only process messages that are specifically addressed to itC) routers operate at the network layerD) routers perform more processing on each message than switchE) routers can choose the “best” route between networks for forwarding a packet6. Gateways:A) process all messages, even if the messages are not explicitly addressed to themB) can translate one network protocol into anotherC) are less complex than bridgesD) are most often used as the interface between two or more networks that have similardata link and network layer protocolsE) cannot perform a routing function7. ____________ routers can understand different network layer protocols.A) MultiprotocolB) 3270 emulationC) ASCII/EBCDICD) AsynchronousE) Bridge-8. Which of the following is not true about Layer-3 switches?A) They switch messages based on their IP address.B) They can be used in place of routers.C) They function faster than routers.Page 2D) They have more simultaneously active ports than routers.E) They can only switch messages based on their data link layer addresses.9. Which of the following devices is the most complex?A) GatewayB) RouterC) Layer 3 switchesD) SwitchE) Multiprotocol router10. Which of the following is not a fundamental backbone network architecture?A) Bridged backboneB) Virtual LANC) Hubbed backboneD) Collapsed backboneE) Routed backbone11. __________ refers to the way in which backbone interconnects the network attached to it and how it manages the way in which packets from one network move though the backbone to other networks.A) Traffic architectureB) Network designC) Backbone architectureD) Distribution layerE) Core layer12. Which of the following is not a technology layer that is considered when designing backbone networks?A) access layerPage 3B) distribution layerC) decentralized layerD) core layerE) none of the above13. A subnetted or hierarchical backbone can also be called:A) Bridged backboneB) Virtual LANC) Hubbed backboneD) Collapsed backboneE) Routed backbone14. _________ move packets along the backbone based on their network layer address.A) Bridged backbonesB) Hubbed backbonesC) Multistation access unit backbonesD) Routed backbonesE) NIC backbones15. Routed backbones:A) require a lot of managementB) are not susceptible to time delaysC) use data link layer addresses to move packets that leave the subnetD) require only a few set of TCP/IP addressesE) don't need much time to establish separate subnet addresses for each LANPage 416. A _____________ type of BN segments (each of which has a special set of subnet addresses that can be managed by different network managers) each part of the network connected to the backbone.A) bridged backboneB) virtual LANC) hubbed backboneD) collapsed backboneE) routed backbone17. A __________ type of BN has a star topology with one device, such as a switch, at its center.A) Bridged backboneB) Virtual LANC) Hubbed backboneD) Collapsed backboneE) Routed backbone18. _________ have no backbone cable.A) Collapsed backbonesB) Cloud routed backbonesC) Hubbed backbonesD) Bridged backbonesE) Multistation access unit backbones19. Collapsed backbone networks:A) always use a ring topologyB) are the least common type of BN used in one buildingC) use a star topology with one device, usually a switchD) have a great deal of cable in their backbonesPage 5E) tend to have less cable, but more network devices20. Which of the following is an advantage of the traditional BN approach over collapsed backbone design?A) throughput is much higher in a traditional design BNB) traditional design BNs require far fewer networking devicesC) traditional design BNs have much simpler network managementD) much more cable is used in traditional design backbone networksE) if one networking device fails, the entire BN does not fail21. Which of the following is not true about collapsed backbones?A) performance is improved over traditional (bridged or routed) backbone networksB) each connection into the switch is a separate point-to-point circuit which supports simultaneous access by the LANs connected to the switchC) there are many more networking devices in a collapsed backbone networkD) if the switch fails, so does the entire backbone networkE) the backbone essentially exists in the switch; there is no backbone cable22. A rack-based collapsed backbone:A) places all network devices for one part of the building physically in the same room, often in a rack of equipmentB) has an advantage of requiring less cableC) makes it more difficult to move computers from one LAN to anotherD) means that network capacity is always tied to the physical location of the computersE) is harder to maintain and upgrade than a BN that is not rack-based23. Associated with a rack-based collapsed backbone, MDF is an acronym for:A) multi-station device foundationB) main distribution facilityC) manual data frequencyPage 6D) multiplexer downstream flowE) maximum data facility24. A _____________ type of BN is a new type of LAN/BN architecture made possible by intelligent, high speed switches that assign computers to LAN segments via