Networks can be interconnected by different devices.In the physical layer, networks can be connected by（ ） or hubs, which just move the bits from one network to an identical network.A.repeatersB.relaysC.connectorsD.modems
Networks can be interconnected by different devices.In the physical layer, networks can be connected by（ ） or hubs, which just move the bits from one network to an identical network.
A.repeaters
B.relays
C.connectors
D.modems
B.relays
C.connectors
D.modems
参考解析
解析：学好英语，一切都很简单。
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●LANs can be connected by using bridges，which operate in the (67) .(67) A．data-link layerB．Physical layerC．network layerD．transport layer
LANs can be connected by using bridges, which operate in theA．physical layerB．data link layerC．network layerD．transport layer
How could the Ezonexam corporation benefit from using VLANs on their network?(Select three answer choices.)A. VLANs allow access to network services based on department, not physical location.B. VLANs utilize packet filtering to enhance network security.C. VLANs provide a low-latency, high bandwidth internetworking alternative.D. VLANs provide a method of communication between IP addresses in large networks.E. VLANs establish segmented broadcast domains in switched networks.F. VLANs can greatly simplify adding, moving, or changing hosts on the network.
●Networks can be interconnected by different devices．In the physical layer，networks can be connected by (66) or Hubs，which just move the bits from one network to an identical network．One layer up we find bridgas and swiehes,which operate at data link layer．They can accept (67) ，examine the MAC address，and forward the frames to a different network while doing minor protocol translation in the process．In the network layer，we have routers that can connect two netwoks．If two networks have (68) network layer，the router may be able to translate between the packet formats．In the transport layer we find transport gateway，which can interface between the two transport connections．Finally，in the application layer，application gateways translate message (69) ．As an example，gateways between Internet e-mail and X．400 e-mail must (70) the e-mail message and change various header fields．(66) A．reapersB．relaysC．connectsD．modems(67) A．framesB．bytesC．packagesD．cells(68) A．specialB．dependentC．similarD．dissimilar(69) A．syntaxB．semanticsC．languagesD．format(70) A．analyzeB．pairsC．deleteD．create
Networks can be interconnected by different devices in the physical layer networks can be connected by (71) or hubs．which just move the bits from one network to an identical network．One layer up we find bridges and switches which operate at data link layer．They can accept (72) ，examine the MAC address and forward the frames to a different network while doing minor protocol translation in the process in me network layer，we have routers that can connect two networks，If two networks have (73) network layer，the router may be able to translate betweenthe packer formats．In the transport layer we find transport gateway，which can interface between two transport connections Finally，in the application layer，application gateways translate message (74) ．As an example，gateways between Internet e-mail and X，400 e-mail must (75) thee-mail message and change various header fields．(68)A．reapersB．relaysC．packagesD．modems
Networks can be interconnected by different devices. In the physical layer, networks can be connected by(66)or hubs, which just move the bits from one network to an identical network. One layer up we find bridges and switches, which operate at data link layer. They can accept(67), examine the MAC address, and forward the frames to a different network while doing minor protocol translation in the process. In the network layer, we have routers that can connect two networks. If two networks have(68)network layer, the router may be able to translate between the packet formats. In the transport layer we fmd transport gateway, which can interface between two transport connections. Finally, in the application layer, application gateways translate message(69). As an example, gateways between Internet e-mail and X.400 e-mail must(70)the e-mail message and change various header fields.A．repeatersB．relaysC．connectorsD．modems
The IP network 210.106.14.0 is subnetted using a /24 mask. How many usable networks and host addresses can be obtained from this?A．1 network with 254 hostsB．4 networks with 128 hostsC．2 networks with 24 hostsD．6 networks with 64 hostsE．8 networks with 36 hosts
Which of the following is used to create multiple networks from one large network?() A.PATB.NATC.MulticastD.Subnetting
Which one of the following characteristics is true regarding the use of hubs and switches?A．Hubs can have their ports be configured with VLANsB．Using hubs is costly with regard to bandwidth availability.C．Switches can not forward broadcasts.D．Switches are more efficient than hubs in processing frames.E．Switches increase the number of collision domains in the network.
Which of the following is true regarding the use of switches and hubs for network connectivity()。 A.Switches take less time to process frames than hubs take.B.Switches do not forward broadcasts.C.Hubs can filter frames.D.Using hubs can increase the amount of bandwidth available to hosts.E.Switches increase the number of collision domains in the network.
● Networks can be interconnected by different devices. In the physical layer，networks can be connected by（1）or hubs，which just move the bits from one network to an identical network. One layer up we find bridges and switches，which operate at data link layer. They can accept（2）,examine the MAC address，and forward the frames to a different network while doing minor protocol translation in the process. In the network layer，we have routers that can connect two networks. If two networks have（3）network layer， the router may be able to translate between the packet formats. In the transport layer we find transport gateway， which can interface between two transport connections. Finally，in the application layer， application gateways translate message（4）.As an example， gateways between Internet e-mail and X.400 e-mail must （5）the e-mail message and change various header fields.（1）A.reapersB.relaysC.connectorsD.modems（2）A.framesB.packetsC.packagesD.cells（3）A.specia lB.dependentC.similarD.dissimilar（4）A.syntaxB.semanticsC.languageD.format（5）A.analyzeB.parseC.deleteD.create
根据下面的文字资料回答 71～75 题 connected by（ 1 ）or Hubs,which just move the bits from one network to an identical network. One layer up we find bridgas and swiehes,which operate at data link layer. They can accept （ 2 ） , examine the MAC address, and forward the frames to a different network while doing minor protocol translation in the process. In the network layer,we have touters that can connect two netwoks. If two networks have（ 3 ）network layer,the router may be able to translate between the packet formats. In the transport layer we find transport gateway, which cart interface between the two transport connections. Finally, in the application layer, application gateways translate message（ 4 ）. As an example,gateways between Internet e-mail and X.400 e-mail must （ 5 ）the e-mail message and change various header fields.第6题：文中（ 1 ）处正确的答案是（ ）。A．reapersB．relaysC．connectsD．modems
What are three advantages of VLANs?（）A、VLANs establish broadcast domains in switched networks.B、VLANs utilize packet filtering to enhance network security.C、VLANs provide a method of conserving IP addresses in large networks.D、VLANs provide a low-latency internet working alternative to routed networks.E、VLANs allow access to network services based on department, not physical location.F、VLANs can greatly simplify adding, moving, or changing hosts on the network.
You are the network administrator at TestKing. TestKing has been provided withthe network address 165.100.27.0/24. The TestKing CEO wants to know how many subnetworks this address provides, and how many hosts can be supported on each subnet. What would your reply be?（）A、One network with 254 hosts.B、254 networks with 254 hosts per network.C、65,534 networks with 255 hosts per network.D、30 networks with 64 hosts per network.E、254 networks with 65,534 per network.
The IP network 210.106.14.0 is subnetted using a /24 mask. How many usable networks and host addresses can be obtained from this?（）A、1 network with 254 hostsB、4 networks with 128 hostsC、2 networks with 24 hostsD、6 networks with 64 hostsE、8 networks with 36 hosts
Which one of the following characteristics is true regarding the use of hubs and switches?（）A、Hubs can have their ports be configured with VLANsB、Using hubs is costly with regard to bandwidth availability.C、Switches can not forward broadcasts.D、Switches are more efficient than hubs in processing frames.E、Switches increase the number of collision domains in the network.
Which of the following is true regarding the use of switches and hubs for network connectivity（）。A、Switches take less time to process frames than hubs take.B、Switches do not forward broadcasts.C、Hubs can filter frames.D、Using hubs can increase the amount of bandwidth available to hosts.E、Switches increase the number of collision domains in the network.
Overlay Transport Virtualization （OTV） join interface is used to source the OTV encapsulated traffic and send it to the Layer 3 domain of the data center network. Which statements are true about OTV join interface？ （）A、 Join interface is a Layer 3 entity， and with the Cisco NX-OS release 6.0， it can only be defined as a physical interface， physical subinterface， Layer 3 port channel， or Layer 3 port channel subinterface.B、 A single join interface can be defined and associated with a given OTV overlay.C、 Multiple overlays can also share the same join interface.D、 Join interface can be a loopback interface.E、 The join interface is a Layer 3 entity that can be defined as a physical interface but not as a logical one.
How could a large corporation with many specialized divisions benefit from using VLANs on their networks?（）A、VLANs allow access to network services based on department, not physical location.B、VLANs utilize packet filtering to enhance network security.C、VLANs provide a low-latency, high bandwidth internetworking alternative.D、VLANs provide a method of communication between IP addresses in large networks.E、VLANs establish segmented broadcast domains in switched networks.F、VLANs can greatly simplify adding, moving, or changing hosts on the network.
Which of the following is used to create multiple networks from one large network?（）A、PATB、NATC、MulticastD、Subnetting
多选题Overlay Transport Virtualization （OTV） join interface is used to source the OTV encapsulated traffic and send it to the Layer 3 domain of the data center network. Which statements are true about OTV join interface？ （）AJoin interface is a Layer 3 entity， and with the Cisco NX-OS release 6.0， it can only be defined as a physical interface， physical subinterface， Layer 3 port channel， or Layer 3 port channel subinterface.BA single join interface can be defined and associated with a given OTV overlay.CMultiple overlays can also share the same join interface.DJoin interface can be a loopback interface.EThe join interface is a Layer 3 entity that can be defined as a physical interface but not as a logical one.
多选题How could a large corporation with many specialized divisions benefit from using VLANs on their networks?（）AVLANs allow access to network services based on department, not physical location.BVLANs utilize packet filtering to enhance network security.CVLANs provide a low-latency, high bandwidth internetworking alternative.DVLANs provide a method of communication between IP addresses in large networks.EVLANs establish segmented broadcast domains in switched networks.FVLANs can greatly simplify adding, moving, or changing hosts on the network.
单选题An internet is a combination of networks connected by (1). When a datagram goes from a source to a (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet? The decision is based on optimization: Which of the available (5) is the optimum pathway?空白（4）处应选择（）AdestinationBresourceCpacketDsource
单选题Two islands of IPv6 networks that are running ISIS （IPv6 IGP） must be connected using a tunnel over anIPv4 network. Which tunneling method can be used to achieve this goal？（）AGRE tunnelsBautomatic 6 to 4 tunnelsCISATAP tunnelsDmanual tunnels （RFC 2893）
多选题What are three advantages of VLANs?（）AVLANs establish broadcast domains in switched networks.BVLANs utilize packet filtering to enhance network security.CVLANs provide a method of conserving IP addresses in large networks.DVLANs provide a low-latency internet working alternative to routed networks.EVLANs allow access to network services based on department, not physical location.FVLANs can greatly simplify adding, moving, or changing hosts on the network.
单选题Which one of the following characteristics is true regarding the use of hubs and switches?（）AHubs can have their ports be configured with VLANsBUsing hubs is costly with regard to bandwidth availability.CSwitches can not forward broadcasts.DSwitches are more efficient than hubs in processing frames.ESwitches increase the number of collision domains in the network.
单选题The IP network 210.106.14.0 is subnetted using a /24 mask. How many usable networks and host addresses can be obtained from this?（）A1 network with 254 hostsB4 networks with 128 hostsC2 networks with 24 hostsD6 networks with 64 hostsE8 networks with 36 hosts