Which three of the protocols below belong to the application layer? (Select three answer choices)A. ARPB. HTTPSC. SMTPD. CDPE. TFTPF. ICMP

题目

Which three of the protocols below belong to the application layer? (Select three answer choices)

A. ARP

B. HTTPS

C. SMTP

D. CDP

E. TFTP

F. ICMP

相似考题

1.The IoT architecture can be divided into three layers.()is the key layer to realize the foundational capabilities which support the electronic devices interact with physical worlA.B.Sensing layerC.Network layerD.Application layerE.Operation layer

2.Which two of the addresses below are available for host addresses on the Ezonexam subnet 192.168.15.19/28? (Select two answer choices)A. 192.168.15.17B. 192.168.15.14C. 192.168.15.29D. 192.168.15.16E. 192.168.15.31F. None of the above

3.Which two of the following values does STP take into consideration when it elects the root bridge? (Select two answer choices)A. The BPDU version numberB. The access layer bridge settingC. The Bridge IDD. The spanning-tree update numberE. The bridge priorityF. The VLAN number

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：BCE
B,C,E 解析：Explanation:
The application layer is the highest OSI layer, and protocols at this layer are end-user oriented. HTTPS so people can get information on the internet, SMTP so people can manage networks, and TFTP so people can download files.

Incorrect Answers:
A, D, F. ARP, CDP, ICMP are protocols that equipment like routers and switches use to communicate with themselves, and belong to lower levels on the model.
更多“Which three of the protocols below belong to the application layer? (Select three answer choices)A. ARPB. HTTPSC. SMTPD. CDPE. TFTPF. ICMP”相关问题

  • 第1题：

    Which of the protocols below, operates at Layer 2 of the OSI model, and is used to maintain a loop-free network?

    A. RIP

    B. STP

    C. IGRP

    D. CDP

    E. VTP

    F. None of the above


    正确答案：B
    B 解析：Explanation:
    STP (spanning tree protocol) operates on layer 2 to prevent loops in switches and bridges.

    Incorrect Answers:
    A, C. RIP and IGRP are routing protocols, which are used at layer 3 to maintain a loop free routed environment.

    D. CDP does indeed operate at layer 2, but it doest not provide for a loop free topology. CDP is used by Cisco devices to discover information about their neighbors.

    E. VTP is the VLAN Trunking Protocol, used to pass VLAN information through switches. It relies on the STP mechanism to provide a loop free network.

  • 第2题：

    Which of the following protocols can be found at the application layer?()

    A.Telnet

    B.TCP

    C.SNMP

    D.UDP


    参考答案：A

  • 第3题：

    The TCP／IP network model differs from the more popular OSI model. Which of the layers below belong to the TCP／IP model?()

    A. application layer

    B. session layer

    C. transport layer

    D. internet layer

    E. network layer

    F. data link layer

    G. physical layer


    参考答案：A, C, D

  • 第4题：

    For each blank，choose the best answer from the four choices and write down on the answer sheet.
    （ ）is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.
    （请作答此空）is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
    （ ）functions with two layers of protocols.It Can connect networks of different speeds and can be adapted to an environment as it expands.
    （ ）is the popular LAN developed under the direction of the IEEE 802.5.
    （ ）is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

    A.ISO
    B.ANSI
    C.CCITT
    D.IEEE

    答案：D
    解析：
    MAC地址就是在媒体接入层上使用的地址，通俗点说就是网卡的物理地址，现在的MAC地址一般都采用6字节48bit。
    IEEE是由多个研究底层协议的机构组成的权威组织。
    以太网是共享介质的，物理层接收帧，如果地址和自己的地址一致（或者是广播消息），就留下；反之则转发。因此当主机的数量增加时，网络就会变得十分嘈杂，传送效率明显降低。而网桥是工作在数据链路层的设备，它将一个大型的以太网分为几个小网段，可以取得减少通信量的作用。
    令牌环网是一种符合IEEE802.5标准的局域网。监督帧，即令牌，顺序地从一个网站传递到相临的网站上。希望获得网络访问权的网站必须等到令牌到达之后才能传输数据。
    光纤分布数据接口是目前成熟的LAN技术中传输速率最高的一种。这种传输速率高达100Mb/s的网络技术所依据的标准是ANSIX3T9.5。该网络具有定时令牌协议的特性，支持多种拓扑结构，传输媒体为光纤。使用光纤作为传输媒体具有多种优点：
    较长的传输距离，相邻站间的最大长度可达2km，最大站间距离为200km。
    具有较大的带宽，FDDI的设计带宽为100Mbit/s。
    具有对电磁和射频干扰抑制能力，在传输过程中不受电磁和射频噪声的影响，也不影响其他设备。
    光纤可防止传输过程中被分接偷听，也杜绝了辐射波的窃听，因而是最安全的传输媒体。

  • 第5题：

    In the 7-layer OSI model, which layer switching will take place?（）

    • A、Layer two
    • B、Layer four
    • C、Layer one
    • D、Layer three

    正确答案:A

  • 第6题：

    Which of the protocols below use TCP at the transport layer?（）

    • A、TFTP
    • B、SMTP
    • C、SNMP
    • D、FTP
    • E、HTTP
    • F、HTTPS

    正确答案:B,D,E,F

  • 第7题：

    The TCP/IP network model differs from the more popular OSI model. Which of the layers below belong to the TCP/IP model?（）

    • A、application layer
    • B、session layer
    • C、transport layer
    • D、internet layer
    • E、network layer
    • F、data link layer
    • G、physical layer

    正确答案:A,C,D

  • 第8题：

    Which of the following protocols can be found at the application layer?（）

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

    正确答案:A

  • 第9题：

    多选题
    Which three of the following OSI model layers also belong to the TCP/IP model?（）
    A

    The application layer

    B

    The session layer

    C

    The data link layer

    D

    The transport layer

    E

    The network interface layer

    F

    The physical layer


    正确答案： A,D,E
    解析： 暂无解析

  • 第10题：

    多选题
    Which three applications or protocols are accelerated by AppFlow?（） (Choose three.)
    A

    UNIX NFS protocol

    B

    Web-based e-mail

    C

    Secure Sockets Layer

    D

    Microsoft's Common Internet File System

    E

    Microsoft's Messaging Application Programming Interface


    正确答案： B,A
    解析： 暂无解析

  • 第11题：

    多选题
    Which three of the protocols below belong to the application layer?（）
    A

    ARP

    B

    HTTPS

    C

    SMTP

    D

    CDP

    E

    TFTP

    F

    ICMP


    正确答案： A,B
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the protocols below, operates at Layer 2 of the OSI model, and is used to maintain a loop-free network?（）
    A

    RIP

    B

    STP

    C

    IGRP

    D

    CDP

    E

    VTP


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Which of the protocols below use TCP at the transport layer? (Select four)

    A. TFTP

    B. SMTP

    C. SNMP

    D. FTP

    E. HTTP

    F. HTTPS


    正确答案：BDEF
    B,D,E,F 解析：Explanation:
    SMTP (Simple Mail Transfer Profile for email), FTP (File Transfer Protocol), and HTTP/HTTPS (Hyper Text Transfer Protocol for internet) all use TCP because of the reliable delivery mechanism. SMTP uses TCP port 25, FTP uses TCP ports 20 and 21, HTTP uses TCP port 80, and HTTPS uses TCP port 443.

    Incorrect Answers:
    A, C: SNMP and TFTP use UDP as the transport mechanism. Generally speaking, protocols that use the keywords "trivial" or "simple" uses UDP, since connectionless, best effort delivery mechanism usually suffice.

  • 第14题：

    Which three of the following OSI model layers also belong to the TCP／IP model?()

    A. The application layer

    B. The session layer

    C. The data link layer

    D. The transport layer

    E. The network interface layer

    F. The physical layer


    参考答案：A, D, E

  • 第15题：

    The IoT architecture can be divided into three layers.（ ）is the key layer to realize the foundational capabilities which support the electronic devices interact with physical world.

    A.Sensing layer
    B.Network layer
    C.Application layer
    D.Operation layer

    答案：A
    解析：
    物联网架构可以分为三层。感知层是实现支持电子设备与物理世界交互的基础功能的关键层。
    A感知层，B网络层，C应用层，D操作层。

  • 第16题：

    Cisco IOS XR software is partitioned into three planes： control， data， and management. Which three ofthese belong to the data plane？（）

    • A、XML
    • B、RIB
    • C、FIB
    • D、QoS
    • E、PFI

    正确答案:B,D,E

  • 第17题：

    Which three of the protocols below belong to the application layer?（）

    • A、ARP
    • B、HTTPS
    • C、SMTP
    • D、CDP
    • E、TFTP
    • F、ICMP

    正确答案:B,C,E

  • 第18题：

    Which three of the following OSI model layers also belong to the TCP/IP model?（）

    • A、The application layer
    • B、The session layer
    • C、The data link layer
    • D、The transport layer
    • E、The network interface layer
    • F、The physical layer

    正确答案:A,D,E

  • 第19题：

    Which three statements are true about Cisco IOS Firewall？（）

    • A、It can be configured to block Java traffic.
    • B、It can be configured to detect and prevent SYN-flooding denial-of-service （DoS） network attacks.
    • C、It can only examine network layer and transport layer information.
    • D、It can only examine transport layer and application layer information.
    • E、The inspection rules can be used to set timeout values for specified protocols.
    • F、The ip inspect cbac-name command must be configured in global configuration mode.

    正确答案:A,B,E

  • 第20题：

    Which three applications or protocols are accelerated by AppFlow?（） (Choose three.)

    • A、UNIX NFS protocol
    • B、Web-based e-mail
    • C、Secure Sockets Layer
    • D、Microsoft's Common Internet File System
    • E、Microsoft's Messaging Application Programming Interface

    正确答案:B,D,E

  • 第21题：

    单选题
    ICMP and IGMP belong to which layer of the OSI model? ICMP和IGMP协议在OSI模型中属于那层？（）
    A

    Datagram Layer.数据报文层

    B

    Network Layer.网络层

    C

    DataLink Layer.数据链路层

    D

    Transport Layer.传输层


    正确答案： D
    解析： 暂无解析

  • 第22题：

    多选题
    Which of the protocols below use TCP at the transport layer?（）
    A

    TFTP

    B

    SMTP

    C

    SNMP

    D

    FTP

    E

    HTTP

    F

    HTTPS


    正确答案： C,B
    解析： 暂无解析

  • 第23题：

    多选题
    Cisco IOS XR software is partitioned into three planes： control， data， and management. Which three ofthese belong to the data plane？（）
    A

    XML

    B

    RIB

    C

    FIB

    D

    QoS

    E

    PFI


    正确答案： A,D
    解析： 暂无解析

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