For (1) service, we need a virtual-circuit subnet. Let us see how that works. The idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. Instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . That route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.When the connection is released, the virtual circuit is also terminated. With connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to.空白（1）处应选择（）A、connectionlessB、connection-orientedC、datagramD、telegram
For (1) service, we need a virtual-circuit subnet. Let us see how that works. The idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. Instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . That route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.When the connection is released, the virtual circuit is also terminated. With connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to. 空白（1）处应选择（）
- A、connectionless
- B、connection-oriented
- C、datagram
- D、telegram
相关考题：
() the way we had come, we could see the whole valley spread out behind us. A、Looking backB、Having looked backC、To look backD、Being looked back
● For （71） service, we need a virtual-circuit subnet. Let us see how that works. Theidea behind virtual circuits is to avoid having to choose a new （72） for every packet sent.Instead, when a connection is established, a route from the （73） machine to the destinationmachine is chosen as part of the connection setup and stored in tables inside the （74） . Thatroute is used for all traffic flowing over the connection, exactly the same way that thetelephone system works. When the connection is released, the virtual circuit is alsoterminated. With connection-oriented service, each packet carries an （75） telling whichvirtual circuit it belongs to.（71）A. connectionless B. connection-oriented C. datagram D. telegram（72）A. processor B. device C. route D. terminal（73）A. source B. route C. destination D. host（74）A. connections B. resources C. bridges D. routers（75）A. address B. identifier C. interface D. element
For (71) service, we need a virtual-circuit subnet. Let us see how that works. The idea behind virtual circuits is to avoid having to choose a new (72) for every packet sent. Instead, when a connection is established, a route from the (73)machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (74) That route is used for all traffic flowing over the connection, exactly the same way that the telephone system works. When the connection is released, the virtual circuit is also terminated. With connection-oriented service, each packet carries an (75) telling which virtual circuit it belongs to.A．connectionlessB．connection-orientedC．datagramD．telegram
It is very kind ( ) you to let us use your running machine.Actually, it is good ( ) us to do some physical exercise every day. A、of/ ofB、of/ forC、for/ ofD、for/ for
When a packet is sent from Host 1 to Server 1, in how many different frames will the packet be encapsulated as it is sent across the internetwork()。 A.0B.1C.2D.3E.4
In our comparison-soaked culture, it′s hard to avoid slipping into "Why can′t I" mode. When one of my colleagues (51)__________I think is not better than me published a new book, I couldn′t help (52) __________ (complain) how (53) __________ (achieve) it seemed to me and what bad luck I had. Negative feelings like this made life dark for us. How to get rid of the harmful effects of comparison needs exploring. Here′ s what I learned: Don′ t compare your insides to someone else′ s outsides. The first time I heard this excellent advice, I (54)__________(suffer) from terrible envy. My professor′s warning shocked me that "You have no idea what it (55) __________ (take) for them to get there". Don′t just owe it to pure luck. Instead, you should fad out what′s really going on behind the scenes. She was absolutely right, yet it′s much (56) __________ (easy) to envy what they′ve got than it is to ask the serious question: What are they modeling for me? What have they done to get (57) __________ they are today? When we reflect (58)__________ these questions, we shift immediately out of comparison mode and turn inwards. Transform comparison into celebration. Admiration and envy are responses pointing us toward what we value most. And once we become aware of what we value, we are much better positioned (59)__________ (create) a richly satisfying life. If you notice yourself admiring people who take creative risks, bring your full attention to the part of you that wants to be braver. Use the success of others as a mirror. Next time you catch yourself admiring or envying someone′s success, take a moment to consider: What qualities in them inspire me? Where do I presently display these qualities? Remember the light we see in (60) __________ can help us see our own. 第（53）题答案
We experience a burst of pleasure when we share our thoughts,and this drives us to communlcate.It is a useful feature of our brain,because it ensures that knowledge,experience and ideas do not get buried with the person who first had them,and that as a society we benefit from the products of many minds.Of course,in order for that to happen,merely sharing is not enough.We need to cause a reaction.Each time we share our opinions and knowledge,it is with the intention of having an impact on others.Here's the problem,though:we approach this task from inside our own heads.When attempting to create impact,we reflect on what is persuasive to us,our state of mind.our desires and our goals.But if we want to affect the behaviours and beliefs of the person in front of us,we need to understand what goes on inside their head.
It's almost impossible to go through life without experiencing some kind of failure.People who do so probably live so cautiously that they go nowhere.Put simply,they’re not real living at all.But,the wonderful thing about failure is that it's entirely up to us to decide how to look at it.We can choose to see failure as"the end of the world,"or as proof of just how inadequate we are.Or,we can look at failure as the incredible learning experience that it often is.Every time we fail at something,we can choose to look for the lesson we're meant to learn.These lessons are very important;they're how we grow,and how we keep from making that same mistake again.Failures stop us only if we let them.Failure can also teach us things about ourselves that we would never have learned otherwise.For instance,failure can help you discover how strong a person you are.Failing at something can help you discover your truest friends,or help you find unexpected motivation to succeed.
共用题干One Good Reason to Let Smallpox LiveIt's now a fair bet that we will never see the total extinction of the smallpox virus. The idea was to cap the glorious achievement of 1980,when smallpox was eradicated in the wild,by destroying the killer vims in the last two labs that are supposed to have it one in the US and one in Russia. if smallpox had truly gone from the planet,what point was there in keeping these reserves?_______(51)reality,of course,it was naive to _______(52)that everyone would let ________(53)of such a potent potential weapon. Undoubtedly several nations still have _______(54)vials._______(55)the last“official”stocks of live virus bred mistrust of the Us and Russia,_______ (56)no obvious gain.Now American researchers have________(57)an animal model of the human disease,opening the________(58)for tests on new treatments and vaccines.So once again there's a good reason to_______(59)the virusjust in_______(60)the disease puts in a reappearance.How do we_______(61)with the mistrust of the US and Russia?_______(62).Keep the virus________(63)international auspices in a well-guarded UN laboratory that's open to all countries. The US will object,of course,just at it rejects a multilateral approach to just about everything. But it doesn't_______(64)the idea is wrong. If the virus_______(65)useful, then let's make it the servant of all humanity—not just a part of it.61._________A:. handleB: tackleC: dealD: treat
For (1) service, we need a virtual-circuit subnet. Let us see how that works. The idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. Instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . That route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.When the connection is released, the virtual circuit is also terminated. With connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to.空白（5）处应选择（）A、addressB、identifierC、interfaceD、element
For (1) service, we need a virtual-circuit subnet. Let us see how that works. The idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. Instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . That route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.When the connection is released, the virtual circuit is also terminated. With connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to.空白（2）处应选择（）A、processorB、deviceC、routeD、terminal
What are two instances when a WX device route carves? （）(Choose two.)A、It occurs every 29 hours.B、Packet interception mode is enabled.C、The host is unreachable on the local subnet.D、The subnet is unreachable using the advertised router.
You have a server that runs Windows Server 2008. The server has the Windows Server virtualization roleservice installed and has one virtual machine. The virtual machine runs Windows Server 2008. You plan to install a new application on the virtual machine. You need to ensure that you can restorethe virtual machine to its original state in the event the application installation fails. What should you do？（）A、Log on to the virtual host and enable the Remote Differential Compression Features.B、Log on to the virtual host and enable the Windows Recovery Disk feature.C、From Virtualization Management Console， create a snapshot.D、From Virtualization Management Console， save the state of the virtual machine.
Which connection type is available on a virtual switch?（）A、service console portB、ESX machine port groupC、virtual machine port group
When using VSD， traffic flow goes from the virtual machine to which of these？（）A、 Upstream switchB、 Virtual Supervisor ModuleC、 VMware distributed switchD、 VMware vSwitchE、 Service virtual machine
When a packet is sent from Host 1 to Server 1, in how many different frames will the packet be encapsulated as it is sent across the internetwork?（）A、0B、1C、2D、3E、4
You create a virtual machine （VM） named Server1. You export the VM to the C:///VM folder. You need to import the VM from the correct folder. Which folder should you choose？（）A、C:///VMB、C:///VM/Server1C、C:///VM/Server1/Virtual Hard DisksD、C:///VM/Server1/Virtual Machines
Your network consists of a single Active Directory domain.You implement a new subnet. On the new subnet， you install a new DHCP server that runs Windows Server 2003 Service Pack 2 （SP2）. You create a scope for the 192.168.10.0/24 network ID. You connect a new client computer named Client1 to the subnet. Client1 runs Windows XP Professional Service Pack 3 （SP3）. You discover that Client1 has an IP address of 169.254.10.22 and is configured to receive IP configurations automatically.You need to ensure that Client1 receives an IP configuration from Server1. What should you do？（）A、Activate the DHCP scope.B、Create a reservation for Client1.C、Enable BOOTP forwarding on the router.D、Configure a DHCP Relay Agent on the subnet.
You have a server that runs Windows Server 2008. The server has the Windows Server virtualization role service installed and has one virtual machine. The virtual machine runs Windows Server 2008. You plan to install a new application on the virtual machine. You need to ensure that you can restore the virtual machine to its original state in the event the application installation fails. What should you do？（）A、Log on to the virtual host and enable the Remote Differential Compression Features.B、Log on to the virtual host and enable the Windows Recovery Disk feature.C、From Virtualization Management Console， create a snapshot.D、From Virtualization Management Console， save the state of the virtual machine.
You have a server that runs Windows Server 2008 and has the Windows Server Virtualization （WSv）server role installed. You create a new virtual machine. You need to configure the virtual machine to meet the following requirements： Allow network communications between the virtual machine and the host system. Prevent communications with other network servers. What should you do first？（）A、Install the Microsoft Loopback Adapter.B、Create a new Virtual Network Switch.C、Enable Internet Connection Sharing （ICS）.D、Set the Connection to None for the network interface card.
Your virtual environment includes Hyper-V host servers and VMware ESX Server hosts. You manage the environment by using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2. You need to enable non-administrative users to manage snapshots or checkpoints for virtual machines （VMs） that are hosted on either host system. What should you do？（）A、Create checkpoints in VMM.B、Create snapshots by using Hyper-V Manager.C、Create checkpoints by using the VMM Self-Service Portal.D、Create snapshots from within the Virtual Machine Connection console.
单选题When using VSD， traffic flow goes from the virtual machine to which of these？（）A Upstream switchB Virtual Supervisor ModuleC VMware distributed switchD VMware vSwitchE Service virtual machine
单选题For (1) service, we need a virtual-circuit subnet. Let us see how that works. The idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. Instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . That route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.When the connection is released, the virtual circuit is also terminated. With connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to.空白（3）处应选择（）AsourceBrouteCdestinationDhost
单选题For (1) service, we need a virtual-circuit subnet. Let us see how that works. The idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. Instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . That route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.When the connection is released, the virtual circuit is also terminated. With connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to.空白（1）处应选择（）AconnectionlessBconnection-orientedCdatagramDtelegram
单选题You have a server that runs Windows Server 2008. The server has the Windows Server virtualization role service installed. You create a new virtual machine and perform an installation of Windows Server 2008 on the virtual machine. You configure the virtual machine to use the physical network card of the host server. You notice that you are unable to access network resources from the virtual machine. You need to ensure that the virtual host can connect to the physical network. What should you do？（）AOn the host server， install the MS Loopback adapter.BOn the host server， enable the Multipath I/O feature.COn the virtual machine， install the MS Loopback adapter.DOn the virtual machine， install Windows Server virtualization Guest Integration Components.