单选题An administrator needs to review the open ports on a host. Which of the following commands should they use？（）A traceroute -dB ping -tC netstat -anoD nbtstat -a

题目
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

相似考题

1.听力原文：M: All you need to open a savings account is $20. But in order to earn reasonable interest you should maintain a balance of at least $ 2,000.W: I only have $ 200 but I'll open an account anyway.Q: What information does the man give the woman?(12)A．That she needs $200 to open an account.B．That savings accounts earn low interest.C．That she should not open an account.D．That $ 2,000 will earn reasonable interest.

2.An administrator needs to know the workstation name of a user who called in for support in orderto remotely manage it. After calling the user and having the user open a command prompt, whichof the following commands would the administrator ask the user to type?（）A. NetstatB. IfconfigC. HostnameD. Ping

3.Which of the following technologies allows an administrator to submit traffic to an IDS for review?()A. Spanning treeB. VLANC. PoED. Port mirroring

4.A network administrator has configured source NAT, translating to an address that is on a locally connected subnet.The administrator sees the translation working, but traffic does not appear to come back.What is causing the problem?（）A. The host needs to open the telnet port.B. The host needs a route for the translated address.C. The administrator must use a proxy-arp policy for the translated address.D. The administrator must use a security policy, which will allow communication between the zones.

更多“An administrator needs to review the open ports on a host. W”相关问题

  • 第1题：

    An administrator receives a contract for a server install at a new building. Which of the followingshould be completed after installing the server?()

    A. Log the administrator password used

    B. Test the air temperature

    C. Update the network diagram

    D. Review the evacuation procedures


    参考答案：C

  • 第2题：

    Most of the host operating system provides a way for a system administrator to manually configure the IP information needed by a host. Automated configuration methods, such as （）, are required to solve the problem.

    A.IPSec
    B.DHCP
    C.PPTP
    D.SOAP

    答案：B
    解析：
    DHCP是一个局域网的网络协议，使用UDP协议工作，主要用途是给内部网络或网络服务供应商自动分配IP地址给用户，给内部网络管理员作为对所有计算机作中央管理的手段。Internet协议安全性（IPSec）是一种开放标准的框架结构，通过使用加密的安全服务以确保在Internet协议（IP）网络上进行保密而安全的通信。PPTP协议是在PPP协议的基础上开发的一种新的增强型安全协议,支持多协议虚拟专用网（VPN），可以通过密码身份验证协议（PAP）、可扩展身份验证协议（EAP）等方法增强安全性。可以使远程用户通过拨入ISP、通过直接连接Internet或其他网络安全地访问企业网。简单对象访问协议（SOAP）是一种轻量的、简单的、基于XML的协议，它被设计成在Web上交换结构化的和固化的信息。SOAP可以和现存的许多因特网协议和格式结合使用，包括超文本传输协议（HTTP），简单邮件传输协议（SMTP），多用途网际邮件扩充协议（MIME）。它还支持从消息系统到远程过程调用（RPC）等大量的应用程序。用于配置IP信息的是DHCP协议，因此选B

  • 第3题：

    A system administrator has disabled USB ports after experiencing several virus outbreaks. A user needs to transfer several extremely large work related files from their home desktop computer to their work desktop computer. Which of the following will allow the user to transfer the needed files?（）

    • A、An IEEE-1394 device
    • B、A NIC device
    • C、An IrDA device
    • D、A FDD device

    正确答案:A

  • 第4题：

    Which of the following command line utilities can Karen, a technician, use to check for open ports?（）

    • A、nbtstat
    • B、ipconfig
    • C、nslookup
    • D、netstat

    正确答案:D

  • 第5题：

    A technician is trying to connect from a home computer to their office computer, but cannotconnect via Remote Desktop. Which of the following ports needs to be open for RDP traffic to be allowed?（）

    • A、21
    • B、80
    • C、443
    • D、3389

    正确答案:D

  • 第6题：

    A technician needs to check which ports are open in the Windows Firewall. Which of the following willallow the technician to view these settings?（）

    • A、netsh firewall show logging
    • B、ipconfig /all
    • C、netsh firewall show state
    • D、arp -a

    正确答案:C

  • 第7题：

    Which of the following technologies allows an administrator to submit traffic to an IDS for review?（）

    • A、Spanning tree
    • B、VLAN
    • C、PoE
    • D、Port mirroring

    正确答案:D

  • 第8题：

    You have a computer that runs Windows 7. You mark a folder as Always available offline. You need to verifythat an offline copy of the folder has been created on the computer.  What should you do?（）

    • A、Open Sync Center and review the status.
    • B、Open Action Center and review any messages or issues.
    • C、Open Windows Mobile Device Center and review the status.
    • D、Open Network and Sharing Center and review the status for the local area connection.

    正确答案:A

  • 第9题：

    单选题
    A system administrator has disabled USB ports after experiencing several virus outbreaks. A user needs to transfer several extremely large work related files from their home desktop computer to their work desktop computer. Which of the following will allow the user to transfer the needed files?（）
    A

    An IEEE-1394 device

    B

    A NIC device

    C

    An IrDA device

    D

    A FDD device


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    Recently traffic to the company web server has more than doubled， resulting in slower response times from the server.  An administrator has decided to add a second， identical 10/100/1000 NIC to the server.  The server is presently connected to a 10/100/1000 switch， with four open ports on the switch.  Which of the following is the BEST solution to speed up web traffic？（）
    A

    Free up more ports on the switch

    B

    Enable server load balancing

    C

    Move the second network adapter to a new subnet

    D

    Enable network adapter teaming


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    You work as a database administrator for Supportcenter.cn. The database is open. A media failure has occurred， resulting in loss of all the control files in your database. Which statement regarding the database instance is true in this scenario？（）
    A

    The instance would hang.

    B

    The instance needs to be shut down.

    C

    The instance would be in the open state.

    D

    The instance would abort in such cases.

    E

    The instance would be in the open and invalid state.

    F

    The instance would in the open state， but all the background processes will be restarted.


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    An administrator needs to grant privileges to other server staff members to run archive utilities on adefault Windows installation. The administrator needs to set the minimum permissions to：（）
    A

     remote users.

    B

     account operators.

    C

     server operators.

    D

     backup operators.


    正确答案： B
    解析： 暂无解析

  • 第13题：

    下面哪一个是以添加(追加)模式打开文件做写入操作?

    A:f.open("f","r")

    B:f.open("f","w")

    C:f.open("f","a")

    D:f.open("f","w+")


    正确答案：C

  • 第14题：

    A network administrator has configured access list 172 to prevent Telnet and ICMP traffic from reaching a server with the address if 192.168.13.26. Which command can the administrator issue to verify that the access list is working properly?（）

    • A、Router# ping 192.168.13.26
    • B、Router# debug access-list 172
    • C、Router# show open ports 192.168.13.26
    • D、Router# show access-list
    • E、Router# show ip interface

    正确答案:A,D,E

  • 第15题：

    Which ports must be left open if an administrator plans to perform Dynamic LPAR operations？（）

    • A、 port 21（ftp）：tcp and port 657（rmc）：tcp
    • B、 port 22（ssh）：tcp and port 657（rmc）：udp
    • C、 port 657（rmc）：tcp and port 657（rmc）：udp
    • D、 port 161（snmp）：tcp and port 161（snmp）：udp

    正确答案:C

  • 第16题：

    An administrator needs to know the workstation name of a user who called in for support in orderto remotely manage it. After calling the user and having the user open a command prompt, whichof the following commands would the administrator ask the user to type?（）

    • A、Netstat
    • B、Ifconfig
    • C、Hostname
    • D、Ping

    正确答案:C

  • 第17题：

    An administrator needs to grant privileges to other server staff members to run archive utilities on adefault Windows installation. The administrator needs to set the minimum permissions to：（）

    • A、 remote users.
    • B、 account operators.
    • C、 server operators.
    • D、 backup operators.

    正确答案:D

  • 第18题：

    An administrator receives a contract for a server install at a new building. Which of the followingshould be completed after installing the server?（）

    • A、Log the administrator password used
    • B、Test the air temperature
    • C、Update the network diagram
    • D、Review the evacuation procedures

    正确答案:C

  • 第19题：

    You work as a database administrator for Supportcenter.cn. The database is open. A media failure has occurred， resulting in loss of all the control files in your database. Which statement regarding the database instance is true in this scenario？（）

    • A、The instance would hang.
    • B、The instance needs to be shut down.
    • C、The instance would be in the open state.
    • D、The instance would abort in such cases.
    • E、The instance would be in the open and invalid state.
    • F、The instance would in the open state， but all the background processes will be restarted.

    正确答案:D

  • 第20题：

    单选题
    Which ports must be left open if an administrator plans to perform Dynamic LPAR operations？（）
    A

     port 21（ftp）：tcp and port 657（rmc）：tcp

    B

     port 22（ssh）：tcp and port 657（rmc）：udp

    C

     port 657（rmc）：tcp and port 657（rmc）：udp

    D

     port 161（snmp）：tcp and port 161（snmp）：udp


    正确答案： B
    解析： 暂无解析

  • 第21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22题：

    单选题
    A technician is trying to connect from a home computer to their office computer, but cannotconnect via Remote Desktop. Which of the following ports needs to be open for RDP traffic to be allowed?（）
    A

    21

    B

    80

    C

    443

    D

    3389


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    A network administrator has configured source NAT, translating to an address that is on a locally connected subnet.The administrator sees the translation working, but traffic does not appear to come back. What is causing the problem?（）
    A

    The host needs to open the telnet port.

    B

    The host needs a route for the translated address.

    C

    The administrator must use a proxy-arp policy for the translated address.

    D

    The administrator must use a security policy, which will allow communication between the zones.


    正确答案： C
    解析： 暂无解析

  • 第24题：

    多选题
    A network administrator has configured access list 172 to prevent Telnet and ICMP traffic from reaching a server with the address if 192.168.13.26. Which command can the administrator issue to verify that the access list is working properly?（）
    A

    Router# ping 192.168.13.26

    B

    Router# debug access-list 172

    C

    Router# show open ports 192.168.13.26

    D

    Router# show access-list

    E

    Router# show ip interface


    正确答案： A,E
    解析： 暂无解析

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