Broadcom DX NetOps Technical Specialist (250-623) Certification Sample Questions

01. After a recovery, operators log in to the Portal and find their dashboards, views and roles exactly as they left them. Every chart, however, is empty for all dates before the recovery, while data collected since is appearing normally.
What is the most likely explanation?
a) The Data Collectors were assigned to a different IP domain
b) The performance database was not part of the restore
c) The monitoring profiles lost their assigned collections
d) The Portal is federating a data source that is offline

02. An operator searches for a device model from inside one organisational grouping and gets no result. A colleague confirms that the model exists and is being monitored normally.
What should the operator do next?
a) Wait for the next polling cycle and search again
b) Ask for the device to be modelled a second time
c) Restart the client session and run the same search again
d) Repeat the search across the managed environment

03. A failed access switch was replaced with new hardware at a different management address. A week later the replacement itself fails and users lose service, yet the operator finds no alarm for it anywhere in OneClick.
What is the most likely reason?
a) The replacement was never modelled, so it is not monitored
b) The replacement's alarm severity was too low to be generated
c) The replacement's alarm was suppressed as a downstream symptom
d) Performance Management thresholds handle replacements instead

04. Operators have been dismissing a certificate warning on the DX NetOps Portal for months. Management asks for a durable fix. The Portal is reached from a growing number of workstations, including machines the team does not administer.
Which course of action best resolves the problem at its source?
a) Reduce the number of workstations permitted to reach the Portal
b) Document the warning and instruct operators to continue
c) Present a certificate issued by an authority clients trust
d) Move the Portal's dashboards behind a Portal group restriction

05. An administrator is defining what a DX NetOps Spectrum backup must capture so that fault monitoring can be recovered after a host failure.
Which store holds the modelled inventory that fault monitoring depends on?
a) The Vertica performance database
b) The SpectroSERVER database
c) The Portal MySQL database
d) The Java keystore used by OneClick

06. NetOps Flow is deployed differently from the classic Performance Management install path of a Data Aggregator with Data Collectors.
Which statement describes how NetOps Flow is deployed today?
a) As a container-orchestrated, Kubernetes-based workload
b) As an additional Data Collector registered to an IP domain
c) As a plug-in loaded by the SpectroSERVER at start-up
d) As a schema created inside the Vertica database

07. An old core switch was decommissioned and physically removed last weekend. Since then the operations console has shown a persistent alarm for it every day, and the operator has been acknowledging that alarm each morning.
What is the appropriate action?
a) Leave the model in place in case the switch returns
b) Re-run discovery so the switch drops out of Spectrum
c) Remove the decommissioned switch's model
d) Point the model at an unused management address

08. An enterprise runs two separate virtualisation platforms, each with its own controller, plus a cloud controller for a third estate. All three estates must be brought under fault monitoring through VNA.
How should the plug-in configuration be planned?
a) One plug-in, with the three controllers added to it in turn
b) One plug-in configured for each of the three controllers
c) One plug-in for the two on-premises controllers, one for cloud
d) One plug-in per landscape that will hold the resulting models

09. A virtual firewall running on an SDN-controlled fabric has failed. The operations team wants the resulting downstream symptom alarms suppressed so that a single root cause is presented to the on-call engineer.
Which component performs that correlation?
a) VNA, using the plug-in for the SDN controller
b) AppNeta, using its path test results
c) NetOps Flow, using the collected flow records
d) Spectrum, using the models VNA supplied

10. True or false? Restoring a DX NetOps Spectrum backup returns the modelled inventory to its state at the time that backup was taken, so devices modelled after the backup must be discovered and modelled again.
a) True
b) False