单选题A host is expected to be a mail relay or receiving endpoint.  Which of the following daemons should be listening for connections on port 25？（）A ftpdB imapdC pop3dD sendmail

题目
单选题
A host is expected to be a mail relay or receiving endpoint.  Which of the following daemons should be listening for connections on port 25？（）
A

ftpd

B

imapd

C

pop3d

D

sendmail

相似考题

1.Ahostisexpectedtobeamailrelayorreceivingendpoint.Whichofthefollowingdaemonsshouldbelisteningforconnectionsonport25?()A.ftpdB.imapdC.pop3dD.sendmail

2.For the accompanying router output, which of the following statements describes the stat e that neighbor 172.16.254.3 is in?()A. The router will not accept connections from the peer.B. BGP can exchange routing information in this state.C. The router is listening on its server port for connection requests from the peer.D. The router ha s sent out an active TCP connection request to the peer.

3.Which of the following characteristics describe the BPDU Guard feature（）A、ABPDU Guard port should only be configured on ports with PortFast enabled.B、BPDU Guard and PortFast should not be enabled on the same port.C、BPDU Guard is used to ensure that superior BPDUs are not received on a switch port.D、ABPDU Guard port receiving a BPDU will go into err-disablestate.E、ABPDU Guard port receiving a BPDU will be disabled.F、BPDU Guard can be enabled on any switch port.

4.During the boot process, which of the following files should be sued to control system initialization and start daemons and subsystems?()A./etc/inittabB./etc/rc.bootC./etc/servicesD./etc/environment

更多“单选题A host is expected to be a mail relay or receiving endpoint.  Which of the following daemons should be listening for connections on port 25？（）A ftpdB imapdC pop3dD sendmail”相关问题

  • 第1题：

    Which of the following characteristics describe the BPDU Guard feature？（Choose all that apply.）（）

    • A、A BPDU Guard port should only be configured on ports with PortFast enabled
    • B、BPDU Guard and PortFast should not be enabled on the same port.
    • C、BPDU Guard is used to ensure that superior BPDUs are not received on a switch port
    • D、A BPDU Guard port receiving a BPDU will go into err-disable state
    • E、A BPDU Guard port receiving a BPDU will be disabled
    • F、BPDU Guard can be enabled on any switch port

    正确答案:A,E

  • 第2题：

    During the boot process, which of the following files should be sued to control system initialization and start daemons and subsystems?（）

    • A、/etc/inittab
    • B、/etc/rc.boot
    • C、/etc/services
    • D、/etc/environment

    正确答案:A

  • 第3题：

    When configuring the messaging system， which of the following are parameters of the e-mail transport？ （）

    • A、Location
    • B、Protocol
    • C、Mode
    • D、Web Address
    • E、Host

    正确答案:B,E

  • 第4题：

    The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command（）。

    • A、This command should be executed from the global configuration mode
    • B、The IP address 10.121.16.8 is the local router port used to forward data
    • C、102 is the remote DLCI that will receive the information
    • D、This command is required for all Frame Relay configurations
    • E、The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC

    正确答案:E

  • 第5题：

    Which of the following should be configured to provide priority to voice traffic?（）

    • A、Port mirroring
    • B、DMZ
    • C、Qos
    • D、Trunking

    正确答案:C

  • 第6题：

    单选题
    Which of the following should Karen, a technician, use to test a parallel port?（）
    A

    Line tester

    B

    Multimeter

    C

    Null modem cable

    D

    Loopback plugs


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    An administrator is attempting to use Hyper-V on a server with an AMD processor but is receiving an error. Which of the following should be enabled to resolve the error?（）
    A

    XD

    B

    NX

    C

    VT

    D

    Hyperthreading


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command（）。
    A

    This command should be executed from the global configuration mode

    B

    The IP address 10.121.16.8 is the local router port used to forward data

    C

    102 is the remote DLCI that will receive the information

    D

    This command is required for all Frame Relay configurations

    E

    The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    A web server is running correctly but sending a RST packet to any client trying to connect using HTTP on TCP port 80. Which of the following tools should be used to determine the listening port of the web server?（）
    A

    Route

    B

    Ifconfig

    C

    Netstat

    D

    Nslookup


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Which of the following should be used to check a serial port for functionality?（）
    A

    Loopback plug

    B

    Toner probe

    C

    Multimeter

    D

    Cable tester


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    During the boot process, which of the following files should be sued to control system initialization and start daemons and subsystems?（）
    A

    /etc/inittab

    B

    /etc/rc.boot

    C

    /etc/services

    D

    /etc/environment


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    A company needs to connect seven of their Windows-based servers to a DS4000 storage server.   The DS4000 only has two host-side connections， and each server has two HBAs.  Which of the following is the lowest cost solution to provide no single points of failure？（）
    A

    Implement two 8-port switches design with ISLs

    B

    Implement two 16-port switches design with ISLs

    C

    Implement two 8-port switches design without ISLs

    D

    Implement two 16-port switches design without ISLs


    正确答案： C
    解析： 暂无解析

  • 第13题：

    If a port configured with STP loop guard stops receiving BPDUs， the port will be put into which state？（）

    • A、learning state
    • B、listening state
    • C、forwarding state
    • D、root-inconsistent state

    正确答案:D

  • 第14题：

    A host is expected to be a mail relay or receiving endpoint.  Which of the following daemons should be listening for connections on port 25？（）

    • A、ftpd
    • B、imapd
    • C、pop3d
    • D、sendmail

    正确答案:D

  • 第15题：

    Which of the following characteristics describe the Root Guard feature？（Choose all that apply.）（）

    • A、The port must be put into forwarding state manually after root-inconsistent state has beencorrected
    • B、A Root Guard port receiving superior BPDU goes into a root-inconsistent state
    • C、A Root Guard port receiving inferior BPDU goes into a root-inconsistent state
    • D、While the port is in a root-inconsistent state no user data is sent across that port
    • E、The port returns to a forwarding state if inferior BPDUs stop
    • F、It should be applied to all switch ports

    正确答案:B,D

  • 第16题：

    A web server is running correctly but sending a RST packet to any client trying to connect using HTTP on TCP port 80. Which of the following tools should be used to determine the listening port of the web server?（）

    • A、Route
    • B、Ifconfig
    • C、Netstat
    • D、Nslookup

    正确答案:C

  • 第17题：

    There is a problem starting a telnet session on a system.  Which of the following daemons should be checked?（）

    • A、tftpd 
    • B、inetd 
    • C、getty 
    • D、rlogind

    正确答案:B

  • 第18题：

    单选题
    A host is expected to be a mail relay or receiving endpoint.  Which of the following daemons should be listening for connections on port 25？（）
    A

    ftpd

    B

    imapd

    C

    pop3d

    D

    sendmail


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    Which of the following kdb subcommands should be entered to obtain information about a serial port?（）
    A

     tty

    B

     stat

    C

     trace

    D

     stream


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    An administrator needs to review the open ports on a host. Which of the following commands should they use？（）
    A

    traceroute -d

    B

    ping -t

    C

    netstat -ano

    D

    nbtstat -a


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    There is a problem starting a telnet session on a system.  Which of the following daemons should be checked?（）
    A

    tftpd 

    B

    inetd 

    C

    getty 

    D

    rlogind


    正确答案： A
    解析： 暂无解析

  • 第22题：

    多选题
    Which of the following characteristics describe the Root Guard feature？（Choose all that apply.）（）
    A

    The port must be put into forwarding state manually after root-inconsistent state has beencorrected

    B

    A Root Guard port receiving superior BPDU goes into a root-inconsistent state

    C

    A Root Guard port receiving inferior BPDU goes into a root-inconsistent state

    D

    While the port is in a root-inconsistent state no user data is sent across that port

    E

    The port returns to a forwarding state if inferior BPDUs stop

    F

    It should be applied to all switch ports


    正确答案： C,B
    解析： 暂无解析

  • 第23题：

    多选题
    Which of the following characteristics describe the BPDU Guard feature（）
    A

    ABPDU Guard port should only be configured on ports with PortFast enabled.

    B

    BPDU Guard and PortFast should not be enabled on the same port.

    C

    BPDU Guard is used to ensure that superior BPDUs are not received on a switch port.

    D

    ABPDU Guard port receiving a BPDU will go into err-disablestate.

    E

    ABPDU Guard port receiving a BPDU will be disabled.

    F

    BPDU Guard can be enabled on any switch port.


    正确答案： A,C
    解析： 暂无解析

  • 第24题：

    单选题
    You have a server that runs Windows Server 2003 Service Pack 2 (SP2). You need to get a list of all the open connections on the server and all the port numbers used by the connections. Which tool should you use? （）
    A

    Nbtstat

    B

    Netsh

    C

    Netstat

    D

    Nslookup


    正确答案： C
    解析： 暂无解析

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