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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Analyze | 38% | - Threat Analysis and Monitoring
|
| Topic 2: Protect and Defend | 58% | - PKI and Certificate-Based Authentication
|
| Topic 3: Forensics | 4% | - Security Incident Investigation
|
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NEW QUESTION # 74
An organization wants an AOS-CX switch to trigger an alert when its RADIUS server (cp.acnsxtest.local) rejects an unusual number of client authentication requests each hour. After discussions with other HPE Aruba Networking administrators, you still do not know how many rejections are normal or unusual. You expect the value might differ on every switch.
You are helping the developer understand how to create an NAE script for this use case.
Refer to the scenario.
The developer explains that they intend to define the rule with logic like this: `monitor > value` However, the developer asks what value to include.
What should you recommend?
Answer: B
Explanation:
A key strength of the AOS-CX Network Analytics Engine (NAE) is dynamic anomaly detection using statistical baselining. When writing an NAE rule to alert on metrics where normal operating thresholds cannot be predicted-such as RADIUS rejection rates that vary between high-density and branch switches- hardcoding static integer values (such as 10 per hour) yields false positives or missed anomalies.
NAE provides the `Baseline` class (`aruba_cx.baseline`), which continuously learns network operational parameters over a specified learning duration (e.g., 24 hours or 7 days). The baseline tracks average rates and standard deviations for the target monitor URI (RADIUS rejects).
In the rule condition, referencing the dynamic baseline instead of a fixed integer allows the agent to evaluate deviation thresholds (e.g., `monitor > baseline.value * 1.5`). If client rejections spike abnormally relative to that specific switch's historical normal baseline, an alert is triggered automatically.
References: AOS-CX NAE Python Framework Reference - Baseline Creation and Dynamic Anomaly Detection.
NEW QUESTION # 75
A customer uses an AOS-10 architecture that includes HPE Aruba Networking APs. Administrators recently enabled WIDS at the High level and also enabled alerts and email notifications for several events.
Administrators report receiving so many emails that they must ignore them and are considering disabling all notifications. What is one step you could recommend trying first?
Answer: D
Explanation:
In HPE Aruba Networking Central, configuring Wireless Intrusion Detection System (WIDS) at the High profile enables every available client and infrastructure detection signature. In real-world enterprise environments, aggressive signature sets (such as frame flood detectors, sequence number jumps, and client disconnect thresholds) generate frequent false positives caused by client driver bugs, background roaming, and RF noise. When paired with automated email alerting, this causes alert fatigue, often leading administrators to ignore alerts entirely.
Disabling critical alert classes (such as Rogue AP or Client Attack notifications) removes core defense-in- depth controls. The architecturally sound remediation is to transition the WIDS policy from the pre-packaged
"High" profile to the Custom profile.
Under the Custom policy, security teams maintain granular control over individual detection engines.
Administrators can disable high-noise, low-fidelity checks (such as EAP handshake timeouts or rate anomaly detection) while keeping high-confidence, actionable threat signatures enabled (such as AP spoofing, rogue AP detection, and evil twin attacks). This eliminates false alarms while preserving visibility into actionable threats.
References: ArubaOS 10 WIDS/WIPS Configuration Guide - Custom Security Profiles and Alarm Tuning.
NEW QUESTION # 76
How does HPE Aruba Networking Central secure site-to-site connections between AOS-10 gateways?
Answer: C
Explanation:
In an AOS-10 SD-WAN enterprise deployment, site-to-site network interconnectivity between Branch Gateways (VPNC clients) and Headend Gateways / VPNCs (Hubs) is established using automated IPsec overlay tunnels.
HPE Aruba Networking Central acts as the cloud orchestrator and control plane for this overlay fabric. Rather than requiring manual IKE phase 1/2 preshared key (PSK) negotiation, crypto-map binding, or complex public key infrastructure (PKI) enrollment across hundreds of distributed gateways, Central automates the entire IPsec lifecycle. Central securely generates, provisions, and distributes dynamic keying material and encryption parameters to all authorized gateways over encrypted management channels.
Gateways leverage these keys to dynamically establish standard authenticated IPsec VPN tunnels across public Internet, broadband, and private transport circuits. Central does not use proprietary encryption schemes (relying instead on industry-standard AES-GCM/CBC IPsec standards) nor does it encapsulate site-to-site WAN overlays inside TLS tunnels.
References: AOS-10 Architecture Guide - SD-WAN Overlay Orchestration and Automated IPsec Tunneling.
NEW QUESTION # 77
A customer uses an AOS-10 architecture managed by HPE Aruba Networking Central. HPE Aruba Networking infrastructure devices authenticate clients against an HPE Aruba Networking ClearPass cluster.
In HPE Aruba Networking Central, you are reviewing network traffic flows for a wireless IoT device categorized as a "Raspberry Pi" client. You observe SSH traffic. You then inspect several additional wireless IoT clients and find that they are also sending SSH.
Refer to the scenario.
What potential issue does this indicate?
Answer: C
Explanation:
In standard enterprise architectures, wireless IoT devices (such as Raspberry Pi controllers, sensors, or display nodes) operate as endpoints or servers receiving management connections, or they initiate outbound application transactions using lightweight protocols such as MQTT, HTTPS, or CoAP. Under normal operations, IoT endpoints do not originate outbound SSH (TCP port 22) connections to external destinations.
Observing outbound SSH traffic originating from multiple IoT devices strongly indicates the establishment of reverse SSH tunnels. State-sponsored adversaries and botnet operators routinely compromise embedded Linux IoT devices running default or weak credentials and script them to open persistent outbound SSH tunnels to external command-and-control (C2) servers. Because stateful perimeter and role-based firewalls typically permit outbound connections while blocking unsolicited inbound sessions, an outbound reverse SSH tunnel allows remote attackers to establish an interactive shell back into the enterprise network, effectively bypassing edge ingress firewall protections.
References: HPE Aruba Networking Threat Analysis Guide - IoT Security and Tunneling Indicators of Compromise.
NEW QUESTION # 78
You are helping a developer create a custom NAE script for an AOS-CX switch. What information might you need to provide so the developer can define the parameters correctly?
Answer: C
Explanation:
The Aruba Network Analytics Engine (NAE) framework separates monitoring logic from operational configuration by allowing developers to write generalized Python scripts that can be instantiated into multiple distinct NAE agents.
To make an NAE script adaptable across different switch roles, access layers, or monitoring points, developers utilize the `ParameterDefinitions` dictionary within the NAE manifest. Parameters define input variables-such as specific interface identifiers, utilization thresholds, target RADIUS server IPs, or BGP autonomous system numbers-that operators configure during agent creation.
To define these parameters accurately, the developer requires input on which operational values must be adjusted on a per-agent basis. This ensures the script provides the necessary input types, default values, and validation boundaries. Actions, Solution Exchange tags, and global switch hardware limits do not govern parameter dictionary construction.
References: AOS-CX Network Analytics Engine (NAE) Developer Guide - Manifest and Parameter Definitions.
NEW QUESTION # 79
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