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Packet switching is a method of slicing(71) messages into parcels called "packets," sending the packets along different communication(72) as they become available, and then reassembling the packets(73) they arrive at their destination. Prior to the development of packet switching, early computer networks used leased, dedicated telephone circuits to(74) with terminals and other computers. In circuit-switched networks such as the telephone system, a complete point-to-point(75) is put together, and then communication can proceed.
A．binary
B．useful
C．digital
D．analog
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更多 “ Packet switching is a method of slicing(71) messages into parcels called "packets," sending the packets along different communication(72) as they become available, and then reassembling the packets(73) they arrive at their destination. Prior to the development of packet switching, early computer networks used leased, dedicated telephone circuits to(74) with terminals and other computers. In circuit-switched networks such as the telephone system, a complete point-to-point(75) is put together, and then communication can proceed.A．binaryB．usefulC．digitalD．analog ” 相关考题
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●The major problem with Email is that it is (71) easy to use that people can become (72) with messages (73) they can possibly answer in a day.In addition，mail boxes require some management to (74) messages or archive those that might be required later.Senders don't always know about your Email backlog and often send (75) messages.(71) A．tooB．soC．veryD．much(72) A．fullB．lostC．inundatedD．filled(73) A．more thanB．thanC．thatD．which(74) A．manageB．saveC．backupD．dispose of(75) A．toomanyB．redundantC．longD．trivial
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The major problem with E-mail is that it is(71)easy to use that people can become(72)with messages(73)they can possibly answer in a day. In addition, mail boxes require some management to(74)messages or archive those that might be required later. Senders don't always know about your E-mail backlog and often send(75)messages.A．tooB．soC．veryD．much
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Each machine in the ineternet is assigned a unique network address, called__(71)__,that is used to identify the machine for communication purposes.A.MAC addressB.IP addressC.host addressD.domain name address
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Packet switching is a method of slicing __(71)__ messages into parcels called “packets,” sending the packets along different communication __(72)__ as they become available, and then reassembling the packets __(73)__they arrive at their destination. Prior to the development of packet switching, early computer networks used leased, dedicated telephone circuits to __(74)__ with terminals and other computers. In circuit-switched networks such as the telephone system, a complete point-to-point __(75)__ is put together, and then communication can proceeA. binaryB.usefulC.digitalD.analog
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Packet-switching wireless networks are preferable(71)when transmissions are(72)because of the way charges are(73)per packet. Circuit-switched networks are preferable for transferring large files or for other lengthy transmissions because customers are(74)for the(75)of time they use the network.A．toB．forC．thanD．only
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●A management domain typically contains a large amount of management information. Each individual item of( 71)information is an instance of a managed object type. The definition of a related set of managed (72) types is contained in a Management Information Base (MIB)module. Many such MIB modules are defined. For each managed object type it describes, a MIB( 73) defines not only the semantics and syntax of that managed object type, but also the method of identifying an individual instance so that multiple (74) of the same managed object type can be distinguished. Typically, there are many instances of each managed object (75) within a management domain(71) A．rotationB．switchC．managementD．transmission(72) A．pathB．objectC．routeD．packet(73) A．connectionB．windowC．moduleD．destination(74) A．packetsB．searchesC．statesD．instances(75) A．deviceB．stateC．typeD．packet
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关于数据封装的顺序()是正确的。
A.DatA.segments-packets-frames-bitsB.DatA.packets-segments-frames-bitsC.DatA.frames-segments-packets-bitsD.DatA.segments-frames-packets-bits
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A management domain typically contains a large amount of management information. Each individual item of（71） information is an instance of a managed object type. The definition of a related set of managed （72）types is contained in a Management Information Base (MIB)module. Many such MIB modules are defined. For each managed object type it describes, a MIB （73） defines not only the semantics and syntax of that managed object type, but also the method of identifying an individual instance so that multiple （74） of the same managed object type can be distinguished. Typically, there are many instances of each managed object （） within a management domainA.device
B.state
C.type
D.packet
考题
A management domain typically contains a large amount of management information. Each individual item of（71） information is an instance of a managed object type. The definition of a related set of managed （）types is contained in a Management Information Base (MIB)module. Many such MIB modules are defined. For each managed object type it describes, a MIB （73） defines not only the semantics and syntax of that managed object type, but also the method of identifying an individual instance so that multiple （74） of the same managed object type can be distinguished. Typically, there are many instances of each managed object （75） within a management domainA.path
B.object
C.route
D.packet
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