单选题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

题目
单选题
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

0

B

1

C

2

D

3

E

4

相似考题

1.Click the Exhibit button.A user logs in, is assigned the default role, and successfully loads the Host Enforcer policies shown in the exhibit.Which three statements are true? ()A. The local host will respond to ICMP echo-request packets from 192.168.53.10.B. The local host will respond to UDP port 53 requests from 192.168.1.25.C. The local host can send any packet of any type to host 172.16.1.1.D. The local host will accept any packet of any type from host 172.16.1.1.E. The local host can send packets to UDP port512 on server 192.168.53.10.

2.When does the E－series router start monitoring DHCP traffic using the DHCP External function?()A. When the discovery packet enters the router from the DHCP client.B. Only when the offer packet enters the router from the DHCP server.C. When the acknowledge packet enters the router from the DHCP server.D. Only when the discovery packet leaves the router going to the DHCP server.

3.A Telnet session is initiated from host 10.1.1.1. What will happen when it is processed by the firewall filter shown in the exhibit?()A. The packet will be accepted and logged.B. The packet will be discarded and logged.C. The packet will be rejected and a syslog message generated.D. The packet will be accepted and sampled.

4.How does the ERX Edge Router interact with subscriber IP addresses assigned by an external DHCP server?()A.It monitors messages from the external server and updates the routing table as needed.B.It maintains the leases for the DHCP server and reassigns addresses to new subscribers.C.It sends keep alives to the subscriber and makes the address available when the subscriber stops responding.D.It sends keep alives to the subscriber and removes the host route when the subscriber stops responding.

参考答案和解析
正确答案： E
解析： 暂无解析
更多“When a packet is sent from Host 1 to Server 1, in how many d”相关问题

  • 第1题：

    A technician is using a packet sniffer to identify a server. The technician observes the followingnetwork traffic:Which of the following is MOST likely to be the server?()

    A.HOST-A

    B.HOST-B

    C.HOST-C

    D.HOST-D


    参考答案：A

  • 第2题：

    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.0

    B.1

    C.2

    D.3

    E.4


    参考答案：C

  • 第3题：

    R1 forwards a packet from Host 1 to remote Server 1. Which statement describes the use of a MAC as the frame carrying this packet leaves the s0/0/0 interface of R1（）。

    • A、The frame does not have MAC addresses.
    • B、The source MAC address in the frame is the MAC address of the NIC of Host 1.
    • C、The source MAC address in the frame is the MAC address of the s0/0/0 interface of R1.
    • D、The destination MAC address in the frame is the MAC address of the NICof server 1.
    • E、The destination MAC address in the frame is the MAC address of the s0/0/0 interface of R2

    正确答案:A

  • 第4题：

    Which two statements describe the behavior of the server's SQL mode?（）

    • A、The server's SQL mode determines how the server should behave when performing data validation check and interpreting different forms of syntax
    • B、The server's SQL mode determines whether the server should be read-only or should accept commands such as INSERT and UPDATE
    • C、The server's SQL mode can be changed at the session level with a SET SESSION sql_mode="new_value" command
    • D、The server's SQL mode, when globally set on a slave server, applies to events sent from the master

    正确答案:A,C

  • 第5题：

    When you issue the logging trap informational command, what happens? （）

    • A、An information trap is sent to the SNMP server.
    • B、Informational and debug messages are logged to the syslog server.
    • C、All messages are sent to the logging host, where selections are made.
    • D、All messages from emergencies to informational are sent to the logging host.

    正确答案:D

  • 第6题：

    When does the E-series router start monitoring DHCP traffic using the DHCP External function?（）

    • A、When the discovery packet enters the router from the DHCP client.
    • B、Only when the offer packet enters the router from the DHCP server.
    • C、When the acknowledge packet enters the router from the DHCP server.
    • D、Only when the discovery packet leaves the router going to the DHCP server.

    正确答案:D

  • 第7题：

    Your network contains a server named Server1 that runs Windows Server 2003 Service Pack 2 （SP2）. Server1 has IPSec enabled.  Several users report that they cannot connect to Server1. You need to see how many IPSec connection attempts failed due to authentication failures.  What should you do？（）

    • A、From IP Security Monitor， view the Main Mode Statistics.
    • B、From Microsoft Baseline Security Analyzer， scan Server1.
    • C、From the Security event log， view the events from the IPSec source.
    • D、From System Monitor， add the IPSec V4 Driver ： Active Security Associations counter.

    正确答案:A

  • 第8题：

    问答题
    In writing all of the integers from 1 to 300, how many times is the digit 1 used?

    正确答案： 160
    解析：
    可以参考TACTIC8。根据题意，把数位上有1的数值进行系统地列举有：1到99之间，数位上有1的共20个数值，即(1，11，21…，91)和(10，11，2…，19)；相应地，200到299之间，数位上有1的也有20个数值；而100到199之间，数位上有1的除了个位，十位上的，还有百位上的，共有120个数值，所以总数是20+20+20+100=160.

  • 第9题：

    多选题
    Which two statements describe the behavior of the server's SQL mode?（）
    A

    The server's SQL mode determines how the server should behave when performing data validation check and interpreting different forms of syntax

    B

    The server's SQL mode determines whether the server should be read-only or should accept commands such as INSERT and UPDATE

    C

    The server's SQL mode can be changed at the session level with a SET SESSION sql_mode=new_value command

    D

    The server's SQL mode, when globally set on a slave server, applies to events sent from the master


    正确答案： A,D
    解析： 暂无解析

  • 第10题：

    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（）
    A

    connectionless

    B

    connection-oriented

    C

    datagram

    D

    telegram


    正确答案： D
    解析： 对于面向连接的服务，我们需要一个虚拟电路子网。让我们看看它是如何工作的。虚电路的核心思想是避免在发送每个数据时为它们选择一个新的路由。相反，当建立一个连接，将从源计算机向目标计算机选择一条路由作为连接设置的一部分并且存储到内部的路由器表中。这条路由承载着所有连接带来的流量，就跟电话系统的工作原理一样。当连接被释放时，虚电路也终止。在面向连接的服务中，每个数据包携带一个标识符，该标识符告诉它所属的虚电路。

  • 第11题：

    单选题
    R1 forwards a packet from Host 1 to remote Server 1. Which statement describes the use of a MAC as the frame carrying this packet leaves the s0/0/0 interface of R1（）。
    A

    The frame does not have MAC addresses.

    B

    The source MAC address in the frame is the MAC address of the NIC of Host 1.

    C

    The source MAC address in the frame is the MAC address of the s0/0/0 interface of R1.

    D

    The destination MAC address in the frame is the MAC address of the NICof server 1.

    E

    The destination MAC address in the frame is the MAC address of the s0/0/0 interface of R2


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    An internet is a combination of networks connected by (1). When a datagram goes from a source to a (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet? The decision is based on optimization: Which of the available (5) is the optimum pathway? 空白（4）处应选择（）
    A

    destination

    B

    resource

    C

    packet

    D

    source


    正确答案： B
    解析： 互联网是由不同的网络通过路由器互联起来的。当数据包从源地发往目的地时，在到达目的地网络之前它可能经过多个路由器。路由器从一个网络接收到数据包之后就转发到另外一个网络。然而，一个路由器往往与几个网络连接，当路由器接收到一个数据时，它应该将数据包传向哪个网络呢？这将基于路径最优化决策。

  • 第13题：

    When you issue the logging trap informational command, what happens? ()

    A. An information trap is sent to the SNMP server.

    B. Informational and debug messages are logged to the syslog server.

    C. All messages are sent to the logging host, where selections are made.

    D. All messages from emergencies to informational are sent to the logging host.


    参考答案：D

  • 第14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（）

    • A、source
    • B、route
    • C、destination
    • D、host

    正确答案:A

  • 第15题：

    Host 1 has just started up and requests a web page from web server 2. Which two statements describe steps in the process Host 1 uses to send the request to web server 2 (choose two)（）。

    • A、Host 1 addresses the frames to the MAC address of router R1
    • B、Host 1 looks in its ARP cache for the MAC address of router R1
    • C、Host 1 addresses the frames to the MAC address of web server 2
    • D、Host 1 sends the packets to router R1 to be forwarded to web server 2
    • E、Host 1 sends a broadcast ARP request to obtain the MAC address of webserver2

    正确答案:C,E

  • 第16题：

    As an experienced technician, you are responsible for Technical Support in your company. One of the trainees is asking you in what might happen if he issues the logging trap information command. Which of the following statement will answer his quest|on?（）

    • A、Informational and debug messages are logged to the syslog server.
    • B、All messages are sent to the logging host, where selections are made.
    • C、An information trap is sent to the SNMP server.
    • D、All messages from emergencies to informational are sent to the logging host.

    正确答案:D

  • 第17题：

    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、0
    • B、1
    • C、2
    • D、3
    • E、4

    正确答案:D

  • 第18题：

    How does the ERX Edge Router interact with subscriber IP addresses assigned by an externa lDHCP server?（）

    • A、It monitors messages from the external server and updates the routing table as needed.
    • B、It maintains the leases for the DHCP server and reassigns addresses to new subscribers.
    • C、It sends keepalives to the subscriber and makes the address available when the subscriber stops responding.
    • D、It sends keepalives to the subscriber and removes the host route when the subscriber stops responding.

    正确答案:A

  • 第19题：

    You have a server named Server1 that runs Windows Sever 2003 Service Pack 2 （SP2）. You create a FTP site on Server1.You need identify how many users are connected to the FTP site. What should you do？（）

    • A、From Task Manger， view the Networking tab.
    • B、From the command prompt， run Net view //server1.
    • C、From the properties of the FTP site， view Current Sessions.
    • D、From the properties of the FTP site， enable Open Database Connectivity （ODBC） logging.

    正确答案:C

  • 第20题：

    单选题
    When you issue the logging trap informational command, what happens? （）
    A

    An information trap is sent to the SNMP server.

    B

    Informational and debug messages are logged to the syslog server.

    C

    All messages are sent to the logging host, where selections are made.

    D

    All messages from emergencies to informational are sent to the logging host.


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    An internet is a combination of networks connected by (1). When a datagram goes from a source to a (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet? The decision is based on optimization: Which of the available (5) is the optimum pathway? 空白（1）处应选择（）
    A

    modems

    B

    routers

    C

    switcher

    D

    computers


    正确答案： A
    解析： 互联网是由不同的网络通过路由器互联起来的。当数据包从源地发往目的地时，在到达目的地网络之前它可能经过多个路由器。路由器从一个网络接收到数据包之后就转发到另外一个网络。然而，一个路由器往往与几个网络连接，当路由器接收到一个数据时，它应该将数据包传向哪个网络呢？这将基于路径最优化决策。

  • 第22题：

    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（）
    A

    source

    B

    route

    C

    destination

    D

    host


    正确答案： B
    解析： 对于面向连接的服务，我们需要一个虚拟电路子网。让我们看看它是如何工作的。虚电路的核心思想是避免在发送每个数据时为它们选择一个新的路由。相反，当建立一个连接，将从源计算机向目标计算机选择一条路由作为连接设置的一部分并且存储到内部的路由器表中。这条路由承载着所有连接带来的流量，就跟电话系统的工作原理一样。当连接被释放时，虚电路也终止。在面向连接的服务中，每个数据包携带一个标识符，该标识符告诉它所属的虚电路。

  • 第23题：

    单选题
    How does the ERX Edge Router interact with subscriber IP addresses assigned by an external DHCP server?（）
    A

    It monitors messages from the external server and updates the routing table as needed.

    B

    It maintains the leases for the DHCP server and reassigns addresses to new subscribers.

    C

    It sends keep alives to the subscriber and makes the address available when the subscriber stops responding.

    D

    It sends keep alives to the subscriber and removes the host route when the subscriber stops responding.


    正确答案： D
    解析： 暂无解析

  • 第24题：

    单选题
    When does the E-series router start monitoring DHCP traffic using the DHCP External function?（）
    A

    When the discovery packet enters the router from the DHCP client.

    B

    Only when the offer packet enters the router from the DHCP server.

    C

    When the acknowledge packet enters the router from the DHCP server.

    D

    Only when the discovery packet leaves the router going to the DHCP server.


    正确答案： D
    解析： 暂无解析

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