单选题Several users are sending emails to CompTIA.org. but they are not being received. Which of thefollowing commands could be used to verify that the company is able to connect to the mailservice at CompTIA.org?()A PingB ArpC DigD telnet

题目
单选题
Several users are sending emails to CompTIA.org. but they are not being received. Which of thefollowing commands could be used to verify that the company is able to connect to the mailservice at CompTIA.org?()
A

Ping

B

Arp

C

Dig

D

telnet


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  • 第1题:

    Which of the following commands can be used to verify the gateway IP address on a localcomputer?()

    • A、net use
    • B、telnet
    • C、ping
    • D、ipconfig

    正确答案:D

  • 第2题:

    All of the following commands could be used to verify availability of tty devices on the system EXCEPT:()。

    • A、lstty
    • B、lscons
    • C、lsdev
    • D、lscfg

    正确答案:B

  • 第3题:

    Which router IOS commands can be used to troubleshoot LAN connectivity problems?()

    • A、ping
    • B、tracert
    • C、ipconfig
    • D、show ip route
    • E、winipcfg
    • F、show interfaces

    正确答案:A,D,F

  • 第4题:

    Several users are sending emails to CompTIA.org. but they are not being received. Which of thefollowing commands could be used to verify that the company is able to connect to the mailservice at CompTIA.org?()

    • A、Ping
    • B、Arp
    • C、Dig
    • D、telnet

    正确答案:D

  • 第5题:

    Which of the following utilities could be used to determine a subnet mask?()

    • A、PING
    • B、NSLOOKUP
    • C、TRACERT
    • D、IPCONFIG

    正确答案:D

  • 第6题:

    You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance on the same physical computer. Now users report that they are unable to connect to the named instances. You check and verify that they can only connect to the default instance. You also ensure that all SQL Server instances run normally. You have to start the service which is required to connect to the named instances.  Which service should you start?()  

    • A、Server 
    • B、SQL Server Agent 
    • C、SQL Server Browser 
    • D、SQL Active Directory Helper

    正确答案:C

  • 第7题:

    单选题
    Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully, but are getting the following error message:  telnet: connect: A remote host refused an attempted connect operation   Which of the following could be the cause of this problem?()
    A

    The routing table on the AIX server is incorrect.

    B

    The IP address on the network adapter is incorrect.

    C

    The portmap daemon is not running on the AIX server.

    D

    The inetd daemon is not running on the AIX server.


    正确答案: A
    解析: 暂无解析

  • 第8题:

    单选题
    A company has had problems with their HVAC system being able to cool their datacenter as theyhave grown. Which of the following could BEST be used to help reduce the load on the HVACsystem?()
    A

    Replacing the CAT5 cables with CAT6 cables

    B

    Replacing traditional racks with water cooled racks

    C

    Turning off non-critical application servers during non-business hours

    D

    Taking the second power supply out of non-critical servers


    正确答案: B
    解析: 暂无解析

  • 第9题:

    单选题
    You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance on the same physical computer. Now users report that they are unable to connect to the named instances. You check and verify that they can only connect to the default instance. You also ensure that all SQL Server instances run normally. You have to start the service which is required to connect to the named instances.  Which service should you start?()
    A

    Server 

    B

    SQL Server Agent 

    C

    SQL Server Browser 

    D

    SQL Active Directory Helper


    正确答案: B
    解析: 暂无解析

  • 第10题:

    单选题
    Which of the following commands would be used to verify the integrity of critical system files?()
    A

    verify

    B

    nslookup

    C

    sfc

    D

    chkdsk


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    An employee of ABC company has move to an office on a different floor. Although the administrator is able to telnet to all of the routers,the address of Switch F is needed in order to verify that the employee remains in the same VLAN.Which action could be used by the administrator to find the IP address of Switch F?()
    A

    Issue the show ip route command on Router A

    B

    Issue the show ip route command on Router B

    C

    Issue the show cdp neighbors command on Router B

    D

    Issue the show cdp neighbors detail command on Router C

    E

    Issue the show arp command on Router A

    F

    Issue the show arp command on Router B


    正确答案: A
    解析: 暂无解析

  • 第12题:

    单选题
    Which of the following commands would be used to verify and troubleshoot DNS settings of aparticular host on a Windows computer?()
    A

    TRACERT

    B

    NSLOOKUP

    C

    CHKDSK

    D

    XCOPY


    正确答案: C
    解析: 暂无解析

  • 第13题:

    Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully, but are getting the following error message:  telnet: connect: A remote host refused an attempted connect operation   Which of the following could be the cause of this problem?()

    • A、The routing table on the AIX server is incorrect.
    • B、The IP address on the network adapter is incorrect.
    • C、The portmap daemon is not running on the AIX server.
    • D、The inetd daemon is not running on the AIX server.

    正确答案:D

  • 第14题:

    An employee of ABC company has move to an office on a different floor. Although the administrator is able to telnet to all of the routers,the address of Switch F is needed in order to verify that the employee remains in the same VLAN.Which action could be used by the administrator to find the IP address of Switch F?()

    • A、Issue the show ip route command on Router A
    • B、Issue the show ip route command on Router B
    • C、Issue the show cdp neighbors command on Router B
    • D、Issue the show cdp neighbors detail command on Router C
    • E、Issue the show arp command on Router A
    • F、Issue the show arp command on Router B

    正确答案:D

  • 第15题:

    Which of the following commands would be used to verify the integrity of critical system files?()

    • A、verify
    • B、nslookup
    • C、sfc
    • D、chkdsk

    正确答案:C

  • 第16题:

    Which of the following commands would be used to verify and troubleshoot DNS settings of aparticular host on a Windows computer?()

    • A、TRACERT
    • B、NSLOOKUP
    • C、CHKDSK
    • D、XCOPY

    正确答案:B

  • 第17题:

    You are ready to implement RMAN in the backup and recover strategy for your company. Which system privilege must the RMAN user have to be able to connect and execute RMAN commands on a target database?()

    • A、SYSDBA
    • B、SYSOPER
    • C、No system privileges are required for the RMAN user.
    • D、Only SYS user can connect and execute RMAN commands on a target database.

    正确答案:A

  • 第18题:

    Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully, but are  getting  the  following  error  message:  telnet:  connect:  A remote  host  refused  an  attempted  connect   operation Which of the following options could be the cause of this problem()

    • A、The routing table on the AIX server is incorrect.
    • B、The IP address in the /etc/hosts file is incorrect,
    • C、The portmap daemon is not running on the AIX server.
    • D、The inetd daemon is not running on the AIX server.

    正确答案:D

  • 第19题:

    单选题
    Which of the following commands can be used to verify the gateway IP address on a localcomputer?()
    A

    net use

    B

    telnet

    C

    ping

    D

    ipconfig


    正确答案: B
    解析: 暂无解析

  • 第20题:

    单选题
    You are ready to implement RMAN in the backup and recover strategy for your company. Which system privilege must the RMAN user have to be able to connect and execute RMAN commands on a target database?()
    A

    SYSDBA

    B

    SYSOPER

    C

    No system privileges are required for the RMAN user.

    D

    Only SYS user can connect and execute RMAN commands on a target database.


    正确答案: D
    解析: 暂无解析

  • 第21题:

    单选题
    Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully, but are  getting  the  following  error  message:  telnet:  connect:  A remote  host  refused  an  attempted  connect   operation Which of the following options could be the cause of this problem()
    A

    The routing table on the AIX server is incorrect.

    B

    The IP address in the /etc/hosts file is incorrect,

    C

    The portmap daemon is not running on the AIX server.

    D

    The inetd daemon is not running on the AIX server.


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    An administrator is in charge of several remote servers in Japan. Users call and complain they cannot connect to the company’s resources located on those servers. Which of the following commands would allow the administrator to verify the servers are running?()
    A

    ping

    B

    netstat

    C

    nbtstat

    D

    telnet


    正确答案: A
    解析: 暂无解析

  • 第23题:

    单选题
    All of the following commands could be used to verify availability of tty devices on the system EXCEPT:()。
    A

    lstty

    B

    lscons

    C

    lsdev

    D

    lscfg


    正确答案: B
    解析: 暂无解析