10 exam-style questions with answers and explanations. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The NCA exam has 25 questions and runs 1 hour 30 minutes.
These 10 free NCA questions are organized by exam domain, so you can see how each part of the NETSCOUT Certified Associate blueprint is tested. Reveal the answer and explanation under each question.
An engineer notices that nGeniusONE presents normalized, service-organized performance metrics derived from live network traffic, rather than raw packet dumps. NETSCOUT's term for this structured, analysis-ready output is:
Correct answer: B - Smart data
An organization is extending performance monitoring into public-cloud workloads where installing physical hardware is not possible. Which NETSCOUT data source is purpose-built for these virtualized and cloud environments?
Correct answer: D - vSTREAM
Before nGeniusONE can generate smart data, live production traffic must be delivered to a data source such as an InfiniStreamNG. Which of the following is a standard method for copying that traffic to the appliance?
Correct answer: C - A network TAP or a SPAN (mirror) port
ASI is the core technology behind nGeniusONE. Which option correctly expands the acronym and identifies where ASI processing primarily takes place?
Correct answer: A - Adaptive Service Intelligence, running on the data sources themselves
While triaging a slow application, nGeniusONE shows a normal network round-trip time but a significantly elevated server response time. This pattern most strongly indicates the delay originates:
Correct answer: D - At the server or application tier processing the request
An analyst observes a sudden spike in TCP retransmissions for a monitored service. Within nGeniusONE's metrics, this most commonly signals:
Correct answer: A - Packet loss or congestion along the network path
A team currently switches between separate tools for network, application, and voice/video troubleshooting. Which nGeniusONE component is designed to bring all of these into a single interface?
Correct answer: C - The Unified Performance Management Console
Users report a business web application is slow. Investigation shows the application itself is healthy, but DNS name resolution is failing intermittently. In nGeniusONE terminology, the failing DNS is an example of a:
Correct answer: B - Service Enabler
A service desk must track voice and video call quality for the organization's Unified Communications platform, including metrics such as MOS. Which type of Service Monitor is appropriate for this?
Correct answer: C - UC monitor
An analyst wants to visualize how a front-end application depends on its back-end tiers and infrastructure services, so the full chain is visible during troubleshooting. Which nGeniusONE capability provides this?
Correct answer: D - Service Dependency Mapping
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