Question # 1
What is a guideline for creating certificate signing requests (CSRs) and deploying server Certificates on ArubaOS Mobility Controllers (MCs)?
| A. Create the CSR online using the MC Web Ul if your company requires you to archive the private key.
| B. if you create the CSR and public/private Keypair offline, create a matching private key online on the M
| C. Create the CSR and public/private keypair offline If you want to install the same certificate on multiple MCs.
| D. Generate the private key online, but the public key and CSR offline, to install the same certificate on multiple MCs.
|
C. Create the CSR and public/private keypair offline If you want to install the same certificate on multiple MCs.
Question # 2
What are some functions of an AruDaOS user role?
| A. The role determines which authentication methods the user must pass to gain network access
| B. The role determines which firewall policies and bandwidth contract apply to the clients traffic
| C. The role determines which wireless networks (SSiDs) a user is permitted to access
| D. The role determines which control plane ACL rules apply to the client's traffic
|
B. The role determines which firewall policies and bandwidth contract apply to the clients traffic
Explanation:
An ArubaOS user role determines the firewall policies and bandwidth contracts that apply to the client’s traffic. When a user is authenticated, they are assigned a role, and this role has associated policies that govern network access rights, Quality of Service (QoS), Layer 2 forwarding, Layer 3 routing behaviors, and bandwidth contracts for users or devices.
References:
• Aruba Networks official documentation on user roles in ArubaOS.
• Technical guides that detail user role definitions and their impact on network policies.
Question # 3
What is one way that Control Plane Security (CPsec) enhances security for me network?
| A. It protects wireless clients' traffic tunneled between APs and Mobility Controllers, from eavesdropping
| B. It prevents Denial of Service (DoS) attacks against Mobility Controllers' (MCs") control plane.
| C. It prevents access from unauthorized IP addresses to critical services, such as SSH on Mobility Controllers (MCs).
| D. It protects management traffic between APs and Mobility Controllers (MCs) from eavesdropping.
|
D. It protects management traffic between APs and Mobility Controllers (MCs) from eavesdropping.
Explanation:
Control Plane Security (CPsec) enhances security in the network by protecting management traffic between APs and Mobility Controllers (MCs) from eavesdropping. CPsec ensures that all control and management traffic that transits the network is encrypted, thus preventing potential attackers from gaining access to sensitive management data. It helps in securing the network's control plane, which is crucial for maintaining the integrity and privacy of the network operations.
References:
• Aruba Networks' CPsec documentation.
Question # 4
How can ARP be used to launch attacks?
| A. Hackers can use ARP to change their NIC's MAC address so they can impersonate legiti-mate users.
| B. Hackers can exploit the fact that the port used for ARP must remain open and thereby gain remote access to another user's device.
| C. A hacker can use ARP to claim ownership of a CA-signed certificate that actually belongs to another device.
| D. A hacker can send gratuitous ARP messages with the default gateway IP to cause devices to redirect traffic to the hacker's MAC address.
|
D. A hacker can send gratuitous ARP messages with the default gateway IP to cause devices to redirect traffic to the hacker's MAC address.
Explanation:
ARP (Address Resolution Protocol) can indeed be exploited to conduct various types of attacks, most notably ARP spoofing/poisoning. Gratuitous ARP is a special kind of ARP message which is used by an IP node to announce or update its IP to MAC mapping to the entire network. A hacker can abuse this by sending out gratuitous ARP messages pretending to associate the IP address of the router (default gateway) with their own MAC address. This results in traffic that was supposed to go to the router being sent to the attacker instead, thus potentially enabling the attacker to intercept, modify, or block traffic.
Question # 5
What is a use case for implementing RadSec instead of RADIUS?
| A. A university wants to protect communications between the students' devices and the network access server.
| B. A corporation wants to implement EAP-TLS to authenticate wireless users at their main office.
| C. A school district wants to protect messages sent between RADIUS clients and servers over an untrusted network.
| D. A organization wants to strengthen the encryption used to protect RADIUS communications without increasing complexity.
|
C. A school district wants to protect messages sent between RADIUS clients and servers over an untrusted network.
Question # 6
Which scenario requires the Aruba Mobility Controller to use a Server Certificate?
| A. Obtain downloadable user roles (DURs) from ClearPass.
| B. Synchronize its clock with an NTP server that requires authentication.
| C. Use RadSec for enforcing 802.1X authentication to ClearPass.
| D. Use RADIUS for enforcing 802.1X authentication to ClearPass.
|
C. Use RadSec for enforcing 802.1X authentication to ClearPass.
Question # 7
What is a vulnerability of an unauthenticated Dime-Heliman exchange?
| A. A hacker can replace the public values exchanged by the legitimate peers and launch an MITM attack.
| B. A brute force attack can relatively quickly derive Diffie-Hellman private values if they are able to obtain public values
| C. Diffie-Hellman with elliptic curve values is no longer considered secure in modem networks, based on NIST recommendations.
| D. Participants must agree on a passphrase in advance, which can limit the usefulness of Diffie- Hell man in practical contexts.
|
A. A hacker can replace the public values exchanged by the legitimate peers and launch an MITM attack.
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