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单选题Which operational mode command can be used to synchronize the local system time with an NTP server?（）A set ntp time 64.32.129.3B set clock ntp 64.32.129.3C set time 64.32.129.3D set date ntp 64.32.129.3

题目
单选题
Which operational mode command can be used to synchronize the local system time with an NTP server?（）
A

set ntp time 64.32.129.3

B

set clock ntp 64.32.129.3

C

set time 64.32.129.3

D

set date ntp 64.32.129.3

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相似问题和答案

第1题：

Which JUNOS software operational－mode command displays the status of a Martini VPN?()

A. show ldp neighbor

B. show martini connections

C. show l2circuit connections

D. show l2vpn connections


参考答案：C

第2题：

Which command prompt indicates that you are in operational mode?()

A. user@router&

B. user@router#

C. user@router%

D. user@router>


参考答案：D

第3题：

Regarding the extended ping command; which of the statements below are true?

(Select all valid answer choices)

A．The extended ping command is supported from user EXEC mode.

B．The extended ping command is available from privileged EXEC mode.

C．With the extended ping command you can specify the TCP and UDP port to be pinged.

D．With the extended ping command you can specify the timeout value.

E．With the extended ping command you can specify the datagram size.


正确答案：BDE
解析：Explanation:
The extended ping command works only at the privileged EXEC command line.
Some of the extended ping command values include the datagram size and timeout value as shown:

Datagram size [100]: Size of the ping packet (in bytes). Default: 100 bytes.

Timeout in seconds [2]: Timeout interval. Default: 2 (seconds). The ping is declared successful only if the ECHO REPLY packet is received before this time interval.

Incorrect Answers:
A. Regular pings are available in both user and privileged mode, but not extended pings.
C. Ports can not be specified.

第4题：

The Cisco 521 Wireless Express Access Point used in the Smart Business Communications System can be configured to operate in which mode?（）

  • A、controller-based mode only
  • B、either standalone mode or controller-based mode
  • C、standalone mode only

正确答案:B

第5题：

Which two statements are true about Unicast Reverse Path Forwarding Loose Mode？（）

  • A、It is used in multihome network scenarios.
  • B、It can be used with BGP to mitigate DoS and DDoS.
  • C、It does not need to have CEF enabled.
  • D、It is enabled via the interface level command ip verify unicast reverse-path.
  • E、It cannot be used with "classification" access lists.

正确答案:A,B

第6题：

Which command is used on the local router to invoke a loopback mode on a remote ERX Edge Router?()

A.A

B.B

C.C

D.D


参考答案：B

第7题：

The enable secret command is used to secure access to which CLI mode?()

A.user EXEC mode

B.global configuration mode

C.privileged EXEC mode

D.auxiliary setup mode


参考答案：C

第8题：

Which operational mode command can be used to synchronize the local system time with an NTP server?()

A. set ntp time 64.32.129.3

B. set clock ntp 64.32.129.3

C. set time 64.32.129.3

D. set date ntp 64.32.129.3


参考答案：D

第9题：

Which two statements correctly describe VTP？（）

  • A、Transparent mode always has a configuration revision number of 0.
  • B、Transparent mode cannot modify a VLAN database.
  • C、Client mode cannot forward received VTP advertisements.
  • D、Client mode synchronizes its VLAN database from VTP advertisements.
  • E、Server mode can synchronize across VTP domains.

正确答案:A,D

第10题：

What information does the help reference command provide?（）

  • A、A brief description of commands and their default values
  • B、The serial number and version number of the device used to open a support case with JTAC
  • C、A list of all the active hardware alarms on the device
  • D、A display of the current configuration while in operational mode

正确答案:A

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