Network Timing POWERSWITCH-DATA-CENTER-DEPLOY Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   An engineer is troubleshooting an NTP issue on a Dell PowerSwitch. The switch is configured as an NTP client to a server at 10.1.1.1. The 'show ntp status' command shows 'unsynchronized'. The engineer checks 'show ntp associations' and sees the server is listed but not reachable. What is the most likely cause of this issue?

   • AThe NTP server is not responding to the switch's requests.
   • BThe switch's clock is set to a wrong timezone.
   • CThe NTP authentication key is incorrect.
   • DThe NTP source interface is not configured.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   What is the key difference between Synchronous Ethernet and PTP?

   • ASyncE works over IP networks, while PTP works only over physical links
   • BSyncE distributes frequency, while PTP distributes time-of-day and phase
   • CSyncE requires a GPS receiver, while PTP does not
   • DSyncE is a software protocol, while PTP is a hardware feature
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   A financial trading firm is deploying PTP on a Dell PowerSwitch to provide sub-microsecond time synchronization for its low-latency trading applications. The network uses a dedicated PTP domain and the default profile. The switch is connected to a grandmaster clock. After configuring PTP, the engineer needs to ensure the switch is correctly acting as a boundary clock. What is the most critical configuration element to verify?

   • AThe switch's PTP clock is set to be the master on all ports.
   • BThe PTP transport is set to Layer 2 (Ethernet).
   • CThe PTP domain number matches the grandmaster's domain.
   • DThe PTP profile is set to the default (1588) profile.
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   What does a 'locked' state in SyncE status indicate?

   • AThe switch has lost its configuration
   • BThe switch is not receiving any clock signal
   • CThe switch is using its internal oscillator
   • DThe switch is synchronized to the selected clock source
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A service provider is deploying Synchronous Ethernet (SyncE) on a Dell PowerSwitch to distribute frequency from a primary reference clock (PRC) to downstream network elements. The switch has a dedicated clock input port connected to the PRC. What is the correct first step to configure the switch to use this external clock source?

   • AConfigure the SSM quality level for the external clock input.
   • BEnable SyncE on all egress interfaces that should carry the clock.
   • CSet the switch to free-running mode to verify the external clock.
   • DSelect the external clock input as the primary source in the clock configuration.
   Reveal Solution Discussion Select an answer first