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The de facto standard Application Program Interface (API) for TCP/IP applications is the “sockets” interface. Although this API was developed for （71） in the early 1960s it has also been implemented on a wide variety of no-Unix systems. TCP/IP （72） Written using the sockets API have in the past enjoyed a high degree of portability and we would like the same （73） with IPv6 applications. But changes are required to the sockets API to support IPv6 and this memo describes these changes. These include a new socket address structure to carry IPv6 （74） ,new address conversion functions, and some new socket options. These extensions are designed to provide access to the basic IPv6 features requited by TCP and UDP applications, including multicasting, while introducing a minimums of change into the system and providing complete （75） for existing IPv4 applications.
- A、Windows
- B、Linux
- C、Unix
- D、DOS
参考答案
更多 “The de facto standard Application Program Interface (API) for TCP/IP applications is the “sockets” interface. Although this API was developed for （71） in the early 1960s it has also been implemented on a wide variety of no-Unix systems. TCP/IP （72） Written using the sockets API have in the past enjoyed a high degree of portability and we would like the same （73） with IPv6 applications. But changes are required to the sockets API to support IPv6 and this memo describes these changes. These include a new socket address structure to carry IPv6 （74） ,new address conversion functions, and some new socket options. These extensions are designed to provide access to the basic IPv6 features requited by TCP and UDP applications, including multicasting, while introducing a minimums of change into the system and providing complete （75） for existing IPv4 applications.A、WindowsB、LinuxC、UnixD、DOS” 相关考题
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在CDMA20001X数据业务的分层结构中,不同层之间依次排列,下面正确的是()
A.Application Layer、PPP、TCP/IP、RLP，Physical LayerB.Application Layer、PPP、RLP、TCP/IP、Physical LayerC.Application Layer、RLP、PhysicalLayer、TCP/IP、PPPD.Physical Layer、RLP、PPP、TCP/IP、Application Layer
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The de facto standard Application Program Interface (API) for TCP/IP applications is the “sockets” interface. Although this API was developed for （71） in the early 1960s it has also been implemented on a wide variety of no-Unix systems. TCP/IP （72） Written using the sockets API have in the past enjoyed a high degree of portability and we would like the same （73） with IPv6 applications. But changes are required to the sockets API to support IPv6 and this memo describes these changes. These include a new socket address structure to carry IPv6 （74） ,new address conversion functions, and some new socket options. These extensions are designed to provide access to the basic IPv6 features requited by TCP and UDP applications, including multicasting, while introducing a minimums of change into the system and providing complete （75） for existing IPv4 applications.A.WindowsB.LinuxC.UnixD.DOS
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TCP/IP(71)layer protocols provide services to the application(72)running on a computer. The application layer does not define the application itself, but rather it defines(73)that applications need--like the ability to transfer a file in the case of HTTP. In short, the application layer provides an(74)between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols, with HTTP being only one of those. The TCP/IP(75)layer consists of two main protocol options--the Transmission Control Protocol(TCP) and the User Datagram Protocol(UDP).A．applicationB．transportC．linkD．network
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Each machine supporting TCP has a TCP transport entity, either a library procedure, a user process, or part of the kernel. In all case, it manages TCP streams and (71) to the IP layer. A TCP (72) accepts user data streams from local process, breaks them into pieces not exceeding 64KB, and sends each piece as a separate IP (73). When datagrams containing TCP data arrive at a machine, they are given to the TCP entity, which reconstructs the original byte streams.The IP layer gives no guarantee that datagrams will be delivered properly, so it is up to TCP to time out and (74) them as need be. Datagmms do arrive may well do so in the wrong order, it is also up to TCP to (75) them into messages in the proper sequence.A．callsB．interfacesC．linksD．produces
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Microsoft's COM is a software(71) that allows applications to be built from binary software components. COM is the underlying architecture that forms the foundation for higher-level software services, like those provided by OLE. COM defines a binary standard for function calling between components, a way for components to dynamically discover the interfaces implemented by other components, and a mechanism to identify components and their interfaces uniquely.OLE is a compound(72) standard developed by Microsoft. OLE makes it possible to create(73) with one application and link or embed them in a second application. Embedded objects retain their original format and(74) to the application that created them. Support for OLE is built into the Windows and MacOS Operating Systems. A(75) compound document standard developed mainly by Apple and IBM is called OpenDoc.A．structureB．procedureC．protocolD．architecture
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● TCP/IP communication protocol contains four layers. From bottom to top, the four layers are __(71)__.（71）A．network interface layer, internet layer, transport layer and application layerB．internet layer, network interface layer, transport layer and application layerC．network interface layer, transport layer, network interface layer and application layerD．application layer, transport layer, internet layer and network interface layer
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A transport layer protocol has several responsibilities. One is to create a process-to-process (program-to-program) communication; TCP uses port (71) to accomplish this. Another responsibility of a transport layer protocol is to create a (72) and error-control mechanism at the transport level. TCP uses a sliding (73) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve (74) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends (75) of data to the transport layer. It is the responsibility of the transport layer at the sending station to make a connection with the receiver.（71）A．numbersB．connectionsC．diagramsD．resources
考题
Thedefacto standard Application Program Interface （API） for TCP/IP applications is the “sockets” interface. Although this API was developed for __（71）__ in the early 1980s it has also been implemented on a wide variety ofnon-Unix systems。 TCP/IP __（72）__ written using the sockets API have in the past enjoyed a high degreeof portability and we would like the same __（73）__ with IPv6 applications。 But changes are requiredto the sockets API to support IPv6 and this memo describes these changes。These include a new socket address structure to carry IPv6 __（74）__，new address conversion functions，and some new socket options。These extensions aredesigned to provide access to the basic IPv6 features required by TCP and UDPapplications，including multicasting， while introducing aminimum of change into the system and providing complete __（75）__ for existing IPv4 applications。A.WindowsB.LinuxC.UnixD.DOS@@@SXB@@@A.applicationsB.networksC.protocolsD.systems@@@SXB@@@A.portabilityB.availabilityC.capabilityD.reliability@@@SXB@@@A.connectionsB.protocolsC.networksD.addresses@@@SXB@@@A.availabilityB.compatibilityC.capabilityD.reliability
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● TCP/IP （71） layer protocols provide services to the application （72） running on a computer. The application layer does not define the application itself, but rather it defines （73） that applications need—like the ability to transfer a file in the case of HTTP. In short, the application layer provides an （74） between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols, with HTTP being only one of those. The TCP/IP （75） layer consists of two main protocol options—the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).
考题
TCP/IP communication protocol contains four layers． From bottom to top, the four layers are __（71）__．A.network interface layer, internet layer, transport layer and application layerB.internet layer, network interface layer, transport layer and application layerC.network interface layer, transport layer, network interface layer and application layerD.application layer, transport layer, internet layer and network interface layer
考题
The defacto standard Application Program Interface （API） for TCP/IP applications is the “sockets” interface. Although this API was developed for __（71）__ in the early 1980s it has also been implemented on a wide variety of non-Unix systems。 TCP/IP __（72）__ written using the sockets API have in the past enjoyed a high degree of portability and we would like the same __（73）__ with IPv6 applications。 But changes are required to the sockets API to support IPv6 and this memo describes these changes。These include a new socket address structure to carry IPv6 __（74）__，new address conversion functions，and some new socket options。These extensions are designed to provide access to the basic IPv6 features required by TCP and UDP applications，including multicasting， while introducing a minimum of change into the system and providing complete __（75）__ for existing IPv4 applications。A.WindowsB.LinuxC.UnixD.DOS
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The API changes should provide both source and binary （71） for programs written to the original API.That is,existing program binaries should continue to operate when run on a system supporting the new API.In addition,existing （72） that are re-compiled and run on a system supporting the new API should continue to operate.Simply put,the API （73） for multicast receivers that specify source filters should not break existing programs.The changes to the API should be as small as possible in order to simplity the task of converting existing （74） receiver applications to use source filters.Applications should be able to detele when the new （75） filter APIs are unavailable(e.g., calls fail with the ENOTSUPP erroe) and react gracefully(e.g., revert to old non-source-filter API or display a meaningful error message to the user).71.A.capabilityB.compatibilityC.labialityD.reliability
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Which three of the following OSI model layers also belong to the TCP／IP model?()
A. The application layerB. The session layerC. The data link layerD. The transport layerE. The network interface layerF. The physical layer
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An access list has been designed to prevent HTTP traffic from the Accounting Department from reaching the HR server attached to the Holyoke router. Which of the following access lists will accomplish this task when grouped with the e0 interface on the Chicopee router（）。A. permit ip any any deny tcp 172.16.16.0 0.0.0.255 172.17.17.252 0.0.0.0 eq 80B. permit ip any any deny tcp 172.17.17.252 0.0.0.0 172.16.16.0 0.0.0.255 eq 80C. deny tcp 172.17.17.252 0.0.0.0 172.16.16.0 0.0.0.255 eq 80 permit ip any anyD. deny tcp 172.16.16.0 0.0.0.255 172.17.17.252 0.0.0.0 eq 80 permit ip any any
考题
● Each machine supporting TCP has a TCP transport entity, either a library procedure, a user process, or part of the kernel. In all case, it manages TCP streams and （71） to the IP layer. A TCP （72） accepts user data streams from local process, breaks them into pieces not exceeding 64KB, and sends each piece as a separate IP （73） . When datagrams containing TCP data arrive at a machine, they are given to the TCP entity, which reconstructs the original byte streams. The IP layer gives no guarantee that datagrams will be delivered properly, so it is up to TCP to time out and （74） them as need be. Datagrams do arrive may well do so in the wrong order, it is also up to TCP to （75） them into messages in the proper sequence.（71）A. callsB. interfacesC. linksD. produces（72）A. connectionB. fileC. entityD. destination（73）A. datagramB. streamC. connectionD. transaction（74）A. reassembleB. reduceC. re-createD. retransmit（75）A. reassembleB. reduceC. re-createD. retransmit
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TCP/IP （ ）layer protocols provide services to the application（请作答此空）running on a computer. The application layer does not define the application itself, but rather it defines（ ）that applications need--like the ability to transfer a file in the case of HTTP. In short, the application layer provides an（ ）between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols, with HTTP being only one of those. The TCP/IP（ ）layer consists of two main protocol options--the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).A.hardware]
B.software]
C.packet
D.equipment
考题
TCP/IP（ ）layer protocols provide services to the application（ ）running on a computer.The application layer does not define the application itself,but rather it defines（ ）that applications need--like the ability to transfer a file in the case of HTTP.In short,the application layer provides an（ ）between software running on a computer and the network itself.The TCP/IP application layer includes a relatively large number of protocols,with HTTP being only one of those.The TCP/IP（请作答此空）layer consists of two main protocol options--the Transmission Control Protocol（TCP）and the User Datagram Protocol（UDP）.A.application
B.session
C.physical
D.transport
考题
TCP/IP （ ）layer protocols provide services to the application（ ）running on a computer. The application layer does not define the application itself, but rather it defines（ ）that applications need--like the ability to transfer a file in the case of HTTP. In short, the application layer provides an（请作答此空）between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols, with HTTP being only one of those. The TCP/IP（ ）layer consists of two main protocol options--the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).A.iteration
B.object
C.interface]
D.activity
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Assume that network-based application recognition （NBAR） has been configured to gather traffic for all known protocols on an interface. Which command will display the statistical results of all recognized protocols？（）A、showip nbarB、showip nbar pdimC、show ip nbar port-mapD、show ip nbar protocol-discovery
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在CDMA20001X数据业务的分层结构中，不同层之间依次排列，下面正确的是（）A、Application Layer、PPP、TCP/IP、RLP，Physical LayerB、Application Layer、PPP、RLP、TCP/IP、Physical LayerC、Application Layer、RLP、PhysicalLayer、TCP/IP、PPPD、Physical Layer、RLP、PPP、TCP/IP、Application Layer
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Which three of the following OSI model layers also belong to the TCP/IP model?（）A、The application layerB、The session layerC、The data link layerD、The transport layerE、The network interface layerF、The physical layer
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Company.com is implementing an HACMP solution. The application ahs a license key based on The hostname. The hostname is also the name used for one of the TCP/IP interfaces. The application vendor has worked with HACMP systems before and is aware of the issue. The preferred method for resolving this issue is to：（） A、 include the hostname in the resource group definition.B、 include the license key in the resource group definition.C、 obtain a second license key for a "standby" system from the application vendor.D、 Set the hostname to be one of the TCP/IP interface included in a resource group.
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You have a firewall filter containing two terms applied in an inbound direction on a customer interface. You would like this filter to protect your network from a spoofed denial of service attack. What match criterion should be used in the first term of the filter？（）A、Source TCP portB、Source IP addressC、Destination TCP portD、Destination IP address
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单选题Company.com is implementing an HACMP solution. The application ahs a license key based on The hostname. The hostname is also the name used for one of the TCP/IP interfaces. The application vendor has worked with HACMP systems before and is aware of the issue. The preferred method for resolving this issue is to：（）A
include the hostname in the resource group definition.B
include the license key in the resource group definition.C
obtain a second license key for a standby system from the application vendor.D
Set the hostname to be one of the TCP/IP interface included in a resource group.
考题
多选题Which three of the following OSI model layers also belong to the TCP/IP model?（）AThe application layerBThe session layerCThe data link layerDThe transport layerEThe network interface layerFThe physical layer
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