Together with the network layer,the transport layer is the heart of the protocol（ ）The network layer provides end-to-end（ ） delivery using datagrams or virtual circuits.The transport layer builds on the network layer to provide data transport from a proce

题目

Together with the network layer,the transport layer is the heart of the protocol（ ）The network layer provides end-to-end（ ） delivery using datagrams or virtual circuits.The transport layer builds on the network layer to provide data transport from a process on a（ ）machine to a process on a destination machine with a desired level of reliability that is independent of the physical （ ） currently in use.It provides the abstractions that applications nedd to use the network..Without the（ ） layer,the whole concept of layered protocols would make little sense.

A.transport B.network C.hierarchy D.service A.packet B.data C.command D.record A.connection B.terminal C.source D.destination A.traffic B.connection C.lines D.networks A.network B.transport C.link D.physical

相似考题

1.●Transport gateways connect byte streams in the transport layer．Application gateways allow interworking above (72) ．(72) A．network layerB．data link layerC．transport layerD．appfication layer

2.● A glue that holds the whole Internet together is the network layer protocol,(71). Unlike most older network layer protocols, it was designed from the beginning with internetworking in mind. Its job is to provide a -(72) way to transport datagrams from source to destination, without regard to whether these machines are on the same network or whether there are other networks in between them.Communication in the Internet works as follows. The (73)layer takes data streams and breaks them up into datagrams. Each datagram is transmitted through the Internet, possibly being fragmented into smaller units as it goes. When all the pieces finally get to the destination machine, they are reassembled by the(74) layer into the original datagram. This datagram is then handed to the transport layer, which inserts it into the receiving process' input stream.An IP datagram consists of a header part and a text part. The header has a (75) part and a variable length optional part.(71) A. IP (Internet Protocol)B. IP (Interworking Protocol)C. TCP (Transport Control Protocol)D. TCP (Transfer Communication Protocol)(72) A. best-qualityB. quality-guaranteedC. connection-orientedD. best-efforts(73) A. data linkB. transportC. networkD. application(74) A. data linkB. transportC. networkD. application(75) A. 40-byte fixedB. 64-byte fixedC. 20~64 bytes variableD. 20-byte fixed

3.Transport gateways connect byte streams in the transport layer. Application gateways allow interworking aboveA．network layerB．data link layerC．transport layerD．application layer

4.Regarding DHCP (dynamic host configuration protocol), which two of the following choices below are true? (Select two answer choices)A. The DHCP Discover message uses FF-FF-FF-FF-FF as the Layer 2 destination address.B. The DHCP Discover message uses UDP as the transport layer protocol.C. The DHCP Discover message uses a special Layer 2 multicast address as the destination address.D. The DHCP Discover message uses TCP as the transport layer protocol.E. The DHCP Discover message does not use a Layer 2 destination address.F. The DHCP Discover message does not require a transport layer protocol.

参考答案和解析
正确答案：C,A,C,D,B
更多“Together with the network layer,the transport layer is the heart of the protocol( )The net ”相关问题

  • 第1题：

    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．reapers

    B．relays

    C．packages

    D．modems


    正确答案：A

  • 第2题：

    ● 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 layer

    B．internet layer, network interface layer, transport layer and application layer

    C．network interface layer, transport layer, network interface layer and application layer

    D．application layer, transport layer, internet layer and network interface layer


    正确答案：A

  • 第3题：

    is a connectionless TCP/IP transport layer protocol.

    A．FTP

    B．UDP

    C．1P

    D．ICMP


    正确答案：B
    解析：UDP是一个无连接的TCP/IP传输层协议。

  • 第4题：

    Which layer-function is mostly implemented in a network adapter（ ）。

    A.Physical layer and link layer

    B.Network layer and transport layer

    C.Physical layer and network layer

    D.Transport layer and application layer


    正确答案：A

  • 第5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

    答案：D
    解析：
    TCP/IP传输层协议为运行在计算机上的应用软件提供服务。应用层没有定义应用本身，而是定义了应用需要的服务，例如采用HTTP可以传输文件。简而言之，应用层提供了运行在计算机上的软件与网络之间的接口。TCP/IP应用层包括了很多的协议，HTTP仅是其中之一。TCP/IP传输层主要由两个可选的协议组成——传输控制协议（TCP）和用户数据报协议（UDP）。

  • 第6题：

    Together with the network layer,the transport layer is the heart of the protocol ( 请作答此空).The network layer provides end-to-end () delivery using datagrams or virtual circuits.The transport layer builds on the network layer to provide data transport from a process on a () machine to a process on a destination machine with a desired level of reliability that is independent of the physical () currently in use.It provides the abstractions that applications nedd to use the network..Without the () layer,the whole concept of layered protocols would make little sense.

    A.transport
    B.network
    C.hierarchy
    D.service

    答案：C
    解析：

  • 第7题：

    The TCP protocol is a （ ） layer protocol.

    A.physical
    B.network
    C.transport
    D.application

    答案：C
    解析：
    TCP协议是传输层的协议。 A．物理 B．网络 C．传输 D．应用参考答案：C

  • 第8题：

    Which of the following correctly describe steps in the OSI data encapsulation process?（）

    • A、Transport layer divides a data stream into segments & adds reliability & flow control information
    • B、Data link layer adds physical source & destination address & an FCS to the segment
    • C、Packets are created when the network layer encapsulate a frame with source & destination host address& protocol related control information
    • D、Packets are created when the network layers adds layers 3 address & control information to a segment
    • E、The presentation layer translated bits into bits into voltages for transmission across the physical link

    正确答案:A,D

  • 第9题：

    Which layer in the TCP/IP model is responsible for delivering packets to their destination?（）

    • A、Application Layer
    • B、Transport Layer
    • C、Internet Layer
    • D、Network Access Layer

    正确答案:C

  • 第10题：

    How is network layer addressing accomplished in the OSI protocol suite?（）

    • A、Internet Protocol address
    • B、Media Access Control address
    • C、Packet Layer Proto col address
    • D、Network Service Access Point address
    • E、Authority and Format Identifier address

    正确答案:D

  • 第11题：

    单选题
    Which of the following options lists the steps in PPP session establishment in the correct order?（）
    A

    Optional authentication phase, link establishment phase, network layer protocol phase.

    B

    Network layer protocol phase, link establishment phase, optional authentication phase.

    C

    Network layer protocol phase, optional authentication phase, link establishment phase.

    D

    Link establishment phase, network layer protocol phase, optional authentication phase.

    E

    Link establishment phase, optional authentication phase, network layer protocol phase.

    F

    Optional authentication phase, network layer protocol phase, link establishment phase.


    正确答案： E
    解析： 暂无解析

  • 第12题：

    单选题
    A transport layer protocol has several responsibilities, One is to create a process-to-process (program-to-program) communication; TCP uses port (1) to accomplish this. Another responsibility of a transport layer protocol is to create a (2) and error-control mechanism at the transport level. TCP uses a sliding (3) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve (4) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends (5) 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. 空白（1）处应选择（）
    A

    numbers

    B

    connection

    C

    diagrams

    D

    resources


    正确答案： A
    解析： 传输层协议有多个职责。一是创建进程到进程（程序到程序）的通信，由TCP使用端口号来完成；另一个职责是在传输层创建流和差错控制机制。TCP利用滑动窗口协议来实现流控制。它使用确认分组、超时、重传机制来完成差错控制。传输层也负责为应用程序提供连接机制，应用程序将数据流发送到传输层，发送端的传输层负责建立于接收端之间的连接。

  • 第13题：

    The Simple Network Management Protocol(SNMP)is an(66)protocol that facilitates the exchange of management information between(67). It is part of the Transmission Control Protocol/Internet Protocol(TCP/IP)protocol suite. SNMP enables network(68)to manage network performance, find and sole network problems, and plan for(69)An SNMP -managed network consists of three key components: managed devices ,(70),and network -management systems .

    A．Physical Layer

    B．Link Layer

    C．Network Layer

    D．Transport Layer


    正确答案：D
    解析：TransportLayer：传输层

  • 第14题：

    ● The TCP protocol is a __（72）__ layer protocol．

    （72） A． physical B． network C． transport D． application


    正确答案：C
    TCP协议是传输层的协议。

  • 第15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 layer

    B.internet layer, network interface layer, transport layer and application layer

    C.network interface layer, transport layer, network interface layer and application layer

    D.application layer, transport layer, internet layer and network interface layer


    正确答案：A
    TCP/IP协议是当今世界上最流行的开放系统协议集，它正在支撑着Internet的正常运转。它由4层组成，由低到高依次为网络接口层．Internet层．传输层．应用层。

  • 第16题：

    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．reapers

    B．relays

    C．connects

    D．modems


    正确答案：A

    网络可以用不同的设备互联。在物理层，用中继器或者集线器互联，这些设备只是在相同的网络之间传送比特串。在上面的数据链路层，可以使用网桥或者交换机，这些设备接收数据帧，检查MAC地址，并可以实瑰少量的协议转换，把数据帧转发到不同的网络中。在网络层，使用路由器连接两个网络。如果两个网络的网络层不同，路由器能够对分组格式进行转换。在传输层，使用传输网关，它可以在两个传输连接之间建立接口。最后，在应用层，应用网关实现消息语法之间的翻译。例如，在Internet邮件和X．400邮件之间的网关可以对邮件报文进行语法分析，对报文的各个头字段做出改变。

  • 第17题：

    Which layer-function is mostly implemented in a network adapter?（ ）.

    A.Physical layer and link layer
    B.Network layer and transport layer
    C.Physical layer and.network layer
    D.Transport layer and application layer

    答案：A
    解析：
    解析：翻译：网卡通常作用于（ ）？A．物理层和数据链路层B．网络层和传输层C．物理层和网络层D．传输层和应用层

  • 第18题：

    IPsec, also known as the internet Protocol ( ) , defines the architecture for security services for IP network traffic IPsec describes the framework for providing security a the IP layer, as well as the suite of protocols designed to provide that security: through_ ( )_ and encryption of IP network packets. IPec can be used 10 protect network data, for example, by setting up circuits using IPsec ( ), in which all data being sent between two endpoints is encrypted, as with a Virtual (请作答此空) Network connection ;for encrypting application layer data ;and for providing security for routers sending routing data across the public internet. Internet traffic can also be secured from host to host without the use of IPsec, for example by encryption at the ( ) layer with HTTP Secure (TTPS)or an the transport layer wit the Transport Layer Security (TLS)protocol.

    A.pubic]
    B.private]
    C.personal
    D.proper

    答案：B
    解析：

  • 第19题：

    Which of the following options lists the steps in PPP session establishment in the correct order?（）

    • A、Optional authentication phase, link establishment phase, network layer protocol phase.
    • B、Network layer protocol phase, link establishment phase, optional authentication phase.
    • C、Network layer protocol phase, optional authentication phase, link establishment phase.
    • D、Link establishment phase, network layer protocol phase, optional authentication phase.
    • E、Link establishment phase, optional authentication phase, network layer protocol phase.
    • F、Optional authentication phase, network layer protocol phase, link establishment phase.

    正确答案:E

  • 第20题：

    Which of the following is a connectionless transport layer protocol？（）

    • A、 TCP
    • B、 HTTP
    • C、 SMTP
    • D、 UDP

    正确答案:D

  • 第21题：

    Regarding DHCP (dynamic host configuration protocol), which two of the following choices below are true?（）

    • A、The DHCP Discover message uses FF-FF-FF-FF-FF as the Layer 2 destination address.
    • B、The DHCP Discover message uses UDP as the transport layer protocol.
    • C、The DHCP Discover message uses a special Layer 2 multicast address as the destination address.
    • D、The DHCP Discover message uses TCP as the transport layer protocol.
    • E、The DHCP Discover message does not use a Layer 2 destination address.
    • F、The DHCP Discover message does not require a transport layer protocol.

    正确答案:A,B

  • 第22题：

    Which of the following is a connection oriented transport layer protocol？ （）

    • A、 TCP
    • B、 UDP
    • C、 TFTP
    • D、 SNMP

    正确答案:A

  • 第23题：

    多选题
    Which of the following correctly describe steps in the OSI data encapsulation process?（）
    A

    The transport layer divides a data stream into segments and may add reliability and flow control information.

    B

    The data link layer adds physical source and destination addresses and an FCS to the segment.

    C

    Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.

    D

    Packets are created when the network layer adds Layer 3 addresses and control information to a segment.

    E

    The presentation layer translates bits into voltages for transmission across the physical link.


    正确答案： E,B
    解析： 暂无解析

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