ACSP Network Monitoring and Management 4 — Questions and Answers
Question 1: Which ArubaOS-CX feature allows administrators to write custom Python scripts that react to network events and automatically remediate issues?
- Network Analytics Engine (NAE) (Correct answer)
- REST API webhooks
- OpenConfig streaming telemetry
- SNMP inform messages
Correct answer: Network Analytics Engine (NAE)
NAE on ArubaOS-CX enables Python-based monitoring agents that can trigger automated actions in response to network events and threshold violations.
Question 2: An Aruba switch is configured with SNMP but the NMS is not receiving traps. Which configuration element is most likely missing?
- SNMP community string for read access
- SNMP trap receiver host address and version (Correct answer)
- SNMP MIB files installed on the switch
- SNMP port 161 open on the switch firewall
Correct answer: SNMP trap receiver host address and version
SNMP traps require the trap receiver's IP address and SNMP version to be explicitly configured on the switch; without this, traps have no destination.
Question 3: What is streaming telemetry's primary advantage over traditional SNMP polling for network monitoring?
- It uses less bandwidth than SNMP
- It pushes data continuously in real time rather than requiring periodic requests (Correct answer)
- It requires no configuration on the managed device
- It encrypts data using SNMPv3 automatically
Correct answer: It pushes data continuously in real time rather than requiring periodic requests
Streaming telemetry uses a push model to deliver continuous, high-frequency operational data to collectors, providing lower latency visibility than poll-based SNMP.
Question 4: Which protocol does ArubaOS-CX use for streaming telemetry to modern monitoring platforms?
- SNMP v3 with informs
- gRPC with OpenConfig or gNMI (Correct answer)
- NetFlow v9 over UDP
- Syslog over TCP with TLS
Correct answer: gRPC with OpenConfig or gNMI
ArubaOS-CX supports gRPC-based streaming telemetry using OpenConfig data models and gNMI (gRPC Network Management Interface) for integration with modern collectors.
Question 5: A switch administrator wants to identify which MAC addresses are present on each VLAN. Which command provides this on an Aruba switch?
- show arp vlan <id>
- show mac-address-table vlan <id> (Correct answer)
- show ip interface brief
- show port-security
Correct answer: show mac-address-table vlan <id>
The 'show mac-address-table vlan <id>' command displays all MAC addresses learned on the specified VLAN along with their associated ports.
Question 6: What does the 'show logging' command display on an Aruba switch?
- The NTP server synchronization status
- Buffered syslog messages stored in the switch's memory (Correct answer)
- The SNMP trap log sent to external servers
- The debug output of active troubleshooting sessions
Correct answer: Buffered syslog messages stored in the switch's memory
The 'show logging' command displays the syslog messages that have been stored in the switch's internal logging buffer.
Question 7: An engineer configures port mirroring on an Aruba switch but notices the monitor port is dropping packets. What is the most likely cause?
- The SPAN destination port is also a trunk port
- The mirrored traffic volume exceeds the monitor port bandwidth (Correct answer)
- LLDP is enabled on the monitor port
- The source port uses jumbo frames
Correct answer: The mirrored traffic volume exceeds the monitor port bandwidth
When mirrored traffic from high-speed or multiple source ports exceeds the capacity of the monitor port, packet drops occur at the destination port.
ACSP Network Monitoring and Management 4
Which ArubaOS-CX feature allows administrators to write custom Python scripts that react to network events and automatically remediate issues?