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Question 201. What does WPA3-Personal use?

1. TACACS+
2. WEP
3. SAE
4. SNMP

Correct Answer: 3. SAE

Explanation:

WPA3-Personal uses Simultaneous Authentication of Equals (SAE) instead of the traditional WPA2-Personal pre-shared-key exchange mechanism. SAE provides stronger protection against offline password-guessing attacks because an attacker cannot simply capture one authentication exchange and test large numbers of passwords offline. HPE Aruba Networking supports WPA3-Personal for compatible WLAN clients and recommends migration toward WPA3 where client support allows it. WPA3-Personal still uses a shared passphrase model from the user’s perspective, but the underlying authentication process is significantly stronger than legacy WPA2-PSK authentication.

Question 202. What does WPA3-Enterprise require?

1. Enterprise authentication
2. Open access
3. Shared WEP key
4. No authentication

Correct Answer: 1. Enterprise authentication

Explanation:

WPA3-Enterprise is intended for business environments where users or devices authenticate through an enterprise identity system rather than sharing one common WLAN password. HPE Aruba Networking supports WPA3-Enterprise options with 802.1X-based authentication and stronger encryption modes. In an enterprise WLAN, the AP or gateway works with authentication infrastructure such as a RADIUS server to validate users or devices. This provides better identity accountability and centralized control than shared personal credentials. WPA3-Enterprise can also support strong certificate-based methods such as EAP-TLS.

Question 203. What does Enhanced Open provide?

1. Captive portal only
2. Shared PSK
3. RADIUS authentication
4. Encryption on an open WLAN

Correct Answer: 4. Encryption on an open WLAN

Explanation:

Enhanced Open is the WPA3-related option for open wireless networks. It uses Opportunistic Wireless Encryption to provide encryption between each client and the AP even though users do not need a shared password. This improves privacy compared with a traditional open WLAN, where nearby users may be able to observe unencrypted wireless traffic. Enhanced Open does not provide the same authenticated identity model as WPA3-Enterprise, but it improves confidentiality for public or guest-style wireless access while preserving a passwordless connection experience. HPE lists Enhanced Open as the WPA3 option for Open security mode.

Question 204. What does 802.1X provide?

1. RF optimization
2. Authentication framework
3. DHCP service
4. Link aggregation

Correct Answer: 2. Authentication framework

Explanation:

IEEE 802.1X provides a framework for authenticating users or devices before granting normal network access. In wireless networks, 802.1X uses EAP to carry authentication exchanges between the client and the authentication infrastructure. A RADIUS server commonly acts as the central authentication service. This approach is widely used with WPA2-Enterprise and WPA3-Enterprise because it allows each user or device to have a distinct identity instead of sharing one WLAN password. HPE describes 802.1X as a core enterprise WLAN security mechanism.

Question 205. What is the 802.1X client called?

1. Authenticator
2. Collector
3. Controller
4. Supplicant

Correct Answer: 4. Supplicant

Explanation:

In the 802.1X model, the endpoint requesting network access is called the supplicant. It runs software that participates in EAP authentication and supplies the required identity credentials or certificates. The network access device acts as the authenticator, while the backend authentication server commonly uses RADIUS to validate the user or device. Keeping these roles clear is important during troubleshooting because a failure may originate at the client supplicant, AP or switch authenticator, or backend authentication server rather than in the wireless radio connection itself.

Question 206. What commonly acts as the 802.1X authenticator?

1. AP or access device
2. DNS server
3. NTP server
4. Syslog collector

Correct Answer: 1. AP or access device

Explanation:

The authenticator is the network device controlling whether the supplicant is permitted onto the network. In a wireless deployment, the AP or related wireless infrastructure commonly performs this role. The authenticator carries EAP-related exchanges between the client and the backend authentication service and enforces the result. It does not normally validate the user’s password or certificate itself; that function belongs to the authentication server. This separation allows the WLAN infrastructure to enforce access decisions while identity validation remains centralized.

Question 207. Which server commonly supports 802.1X?

1. DHCP server
2. DNS server
3. RADIUS server
4. Syslog server

Correct Answer: 3. RADIUS server

Explanation:

RADIUS is commonly used as the backend authentication service for enterprise 802.1X WLANs. The AP or other authenticator forwards authentication information toward the RADIUS server, which evaluates the user’s or device’s identity and returns an access decision. It can also provide authorization attributes that influence user roles or access policy. HPE documentation specifically states that WPA2-Enterprise requires user authentication and use of a RADIUS server. This centralized model scales much better than maintaining separate local user databases on every AP.

Question 208. What does EAP-TLS use?

1. Shared password only
2. Digital certificates
3. MAC address only
4. Captive portal

Correct Answer: 2. Digital certificates

Explanation:

EAP-TLS uses digital certificates for authentication and can provide strong mutual authentication between the client and authentication infrastructure. Because credentials are based on certificates rather than a reusable password, EAP-TLS reduces exposure to many password-based attacks. HPE identifies EAP-TLS as a certificate-based authentication method and uses it in strong enterprise security designs, including WPA3-Enterprise. Proper certificate deployment and trust configuration are essential because the security depends on correctly issued and validated certificates.

Question 209. What does Client Isolation block?

1. Peer-to-peer client traffic
2. AP management
3. Gateway access
4. Internet routing

Correct Answer: 1. Peer-to-peer client traffic

Explanation:

Client Isolation prevents wireless clients in the same WLAN or VLAN context from communicating directly with one another. HPE describes the feature as allowing client-to-gateway traffic while blocking peer-to-peer communication. This is particularly useful on guest or public WLANs where unrelated users should not be able to contact each other’s devices directly. The clients can still reach permitted gateways or configured services. Client Isolation therefore reduces lateral exposure without requiring each guest to be placed into a completely separate physical network.

Question 210. What does MFP protect against?

1. DHCP starvation
2. VLAN hopping
3. BGP hijacking
4. Forged management frames

Correct Answer: 4. Forged management frames

Explanation:

Management Frame Protection helps protect wireless sessions from forged or spoofed 802.11 management frames that could otherwise disrupt valid client connections. Attackers can abuse management frames such as deauthentication or disassociation messages to force clients off a WLAN. HPE describes MFP as increasing wireless security by protecting management-frame confidentiality and authenticity. It is configured per SSID on supported deployments. MFP is unrelated to DHCP starvation, VLAN hopping, or BGP route manipulation because those occur in different parts of the network stack.

Question 211. What does OKC improve?

1. PoE delivery
2. WLAN roaming
3. VLAN creation
4. Switch stacking

Correct Answer: 2. WLAN roaming

Explanation:

Opportunistic Key Caching improves roaming by allowing a client to reuse cached key information when moving among APs under common administrative control. Instead of performing a complete authentication exchange every time the station moves, the client can establish new transient encryption keys more quickly. HPE notes that an OKC client may only need the four-way handshake when roaming to another AP. This reduces roaming delay and is useful for applications such as voice where interruptions during AP transitions can noticeably affect the user experience.

Question 212. What does 802.11r provide?

1. DHCP security
2. AP discovery
3. Fast BSS transition
4. VLAN routing

Correct Answer: 3. Fast BSS transition

Explanation:

IEEE 802.11r defines Fast BSS Transition, a mechanism designed to reduce authentication and key-establishment delay when a wireless client roams between APs. Faster roaming is particularly important for latency-sensitive applications such as Wi-Fi voice. HPE documentation identifies 802.11r clients as fast-roaming users whose authentication key information can be cached and synchronized. 802.11r does not provide DHCP security, routing, or AP discovery; it specifically addresses the transition process between wireless Basic Service Sets.

Question 213. What does Enforce DHCP do?

1. Forces AP reboot
2. Disables DHCP
3. Enables static IPs
4. Blocks clients without DHCP-learned IPs

Correct Answer: 4. Blocks clients without DHCP-learned IPs

Explanation:

The Enforce DHCP option helps ensure that wireless clients obtain their IP configuration through DHCP rather than simply assigning themselves arbitrary static addresses. HPE states that enabling the feature blocks traffic for AP clients that do not obtain an IP address through DHCP. This can improve policy consistency and make client tracking more reliable because the WLAN infrastructure observes the address-assignment process. Enforce DHCP does not turn off DHCP or force an AP reboot; it controls whether clients that bypass DHCP are permitted to pass normal traffic.

Question 214. What can repeated auth failures trigger?

1. Dynamic denylisting
2. VRRP failover
3. LACP removal
4. AP firmware upgrade

Correct Answer: 1. Dynamic denylisting

Explanation:

HPE Aruba Networking WLAN security settings can dynamically denylist a client after it exceeds a configured number of authentication failures. The administrator can define the maximum allowed failures within the supported range. This reduces repeated unsuccessful access attempts and can help limit certain brute-force or misconfigured-client behaviors. Denylisting is a client-access security action and has nothing to do with VRRP, LACP, or firmware operations. Administrators should still investigate repeated failures because they may indicate either malicious attempts or legitimate client configuration problems.

Question 215. Which security fits public Wi-Fi without a password?

1. WPA2-PSK
2. Enhanced Open
3. WPA3-Enterprise
4. EAP-TLS

Correct Answer: 2. Enhanced Open

Explanation:

Enhanced Open is designed for open networks that do not require users to enter a shared Wi-Fi password but still benefit from per-session wireless encryption. This makes it well suited to public-access environments where ease of connection is important but sending wireless frames in clear text is undesirable. HPE lists Enhanced Open as the WPA3 encryption option corresponding to Open security. It does not authenticate user identity like WPA3-Enterprise or EAP-TLS, but it provides significantly better wireless privacy than a traditional completely open SSID.

Question 216. What is a mesh portal?

1. Wireless-only mesh AP
2. RADIUS server
3. Mesh AP with a wired uplink
4. Captive portal server

Correct Answer: 3. Mesh AP with a wired uplink

Explanation:

A mesh portal is an AP that connects the wireless mesh network to the enterprise wired LAN through a valid wired uplink. Mesh points without wired uplinks establish wireless paths toward a portal so their traffic can ultimately reach the wired network. HPE states that APs with valid wired uplinks function as mesh portals and that multiple portals can provide redundant paths. The portal therefore acts as the gateway between mesh backhaul and the wired infrastructure, not as an authentication or captive portal service.

Question 217. What is a mesh point?

1. AP using wireless backhaul
2. Wired-only gateway
3. RADIUS client
4. PoE injector

Correct Answer: 1. AP using wireless backhaul

Explanation:

A mesh point is an AP that reaches the wired LAN through one or more wireless mesh links instead of using its own direct wired uplink. It discovers suitable mesh neighbors and selects a path toward a mesh portal. HPE describes mesh points as capable of supporting WLAN clients while also performing wireless backhaul functions. If the preferred path becomes unavailable, the mesh can select another suitable path where the topology allows it. This self-healing behavior improves coverage flexibility and resiliency in locations where installing Ethernet cabling is difficult.

Question 218. What improves mesh resilience?

1. One portal only
2. Multiple mesh portals
3. Disabling AES
4. Removing backup paths

Correct Answer: 4. Multiple mesh portals

Explanation:

Deploying multiple mesh portals gives mesh points alternative paths to the wired network. HPE describes a redundant mesh scenario in which mesh points can fail over to a second portal when the first portal loses its uplink. Depending on RF conditions and topology, traffic can also traverse intermediate mesh points. This redundancy improves wireless backhaul availability and reduces dependency on one wired mesh gateway. Using only one portal creates a larger single point of failure, while multiple valid uplink portals increase the number of recovery options available to the mesh.

Question 219. Which mesh profile has highest priority?

1. Priority 15
2. Priority 10
3. Priority 1
4. Priority 5

Correct Answer: 3. Priority 1

Explanation:

HPE mesh cluster profiles use a priority value in which a lower numeric value represents a higher priority. Therefore, priority 1 is preferred over values such as 5, 10, or 15. When multiple mesh cluster profiles are available, mesh points can use these priority values when identifying primary and backup choices. This allows administrators to influence which mesh profile should be preferred without removing alternate profiles that can support resiliency. The priority convention is opposite to many networking features where larger numeric values are preferred, so it is important to remember.

Question 220. Which design BEST secures an enterprise WLAN?

1. Open WLAN for all users
2. WPA3-Enterprise, 802.1X, RADIUS, and client isolation where needed
3. WEP and shared accounts
4. No authentication

Correct Answer: 2. WPA3-Enterprise, 802.1X, RADIUS, and client isolation where needed

Explanation:

An enterprise WLAN benefits from multiple complementary controls. WPA3-Enterprise provides modern wireless encryption and enterprise authentication capabilities. 802.1X provides the authentication framework, while a RADIUS server centralizes identity verification and authorization. Certificate-based EAP methods can further strengthen authentication. Client Isolation can be enabled on guest or other shared WLANs when direct peer-to-peer communication should be blocked. This layered approach provides substantially better confidentiality, identity assurance, and lateral-movement protection than open wireless access, legacy WEP, or shared credentials.