Network Timing POWERSWITCH-DATA-CENTER-DEPLOY Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   Which Dell OS10 command verifies the Synchronous Ethernet clock status?

   • Ashow ptp brief
   • Bshow ntp status
   • Cshow interfaces
   • Dshow synce status
   Reveal Solution Discussion Select an answer first
2. 2expert · hard

   A network engineer is planning the deployment of Synchronous Ethernet on a Dell PowerSwitch. The switch will be part of a ring topology. The engineer is concerned about clock loops, where a switch receives its clock from a downstream switch that is actually deriving its clock from it. What is the primary mechanism in SyncE to prevent this?

   • ASSM quality level selection.
   • BThe spanning tree protocol (STP).
   • CThe holdover mode.
   • DThe primary/secondary clock source configuration.
   Reveal Solution Discussion Select an answer first
4. 3expert · hard

   A security-conscious data center is configuring NTP on a Dell PowerSwitch. The switch is a client to an internal NTP server. The security team requires NTP authentication. The engineer has configured the NTP server with the key ID and has set the key. However, the switch is still not synchronizing. The 'show ntp status' command shows 'unsynchronized', and 'show ntp associations' shows the server as 'configured' but not 'reachable'. What is the most likely cause?

   • AThe NTP server is not configured as a server on the switch.
   • BThe NTP source interface is not configured.
   • CThe NTP server does not have the same key configured.
   • DThe switch's clock is too far off from the server's clock.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   What information does an NTP client use to adjust its local clock during synchronization?

   • AThe MAC address of the NTP server
   • BThe IP address of the NTP server
   • CThe number of hops to the NTP server
   • DThe timestamps in NTP packets exchanged with the server
   Reveal Solution Discussion Select an answer first
6. 5expert · hard

   A telecom operator is deploying Synchronous Ethernet on a Dell PowerSwitch. The switch is receiving its clock from an upstream PRC via interface Te 1/1. The SSM quality level received on this interface is 'PRC'. The engineer also has a backup clock source on interface Te 1/2 that is receiving 'SEC' quality. The switch is configured with 'clock source line1 primary' and 'clock source line2 secondary'. What will happen if the SSM quality on the primary source degrades to 'SEC'?

   • AThe switch will continue to use the primary source but will issue a warning.
   • BThe switch will continue to use the primary source because it is configured as primary.
   • CThe switch will enter holdover mode and stop using both sources.
   • DThe switch will switch to the secondary source because it has a higher SSM quality.
   Reveal Solution Discussion Select an answer first