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Free HP HPE6-A78 Exam Questions (page: 11)

Page 7 of 35
PDF with 168 Questions

What is one of the roles of the network access server (NAS) in the AAA framewonx?

  1. It authenticates legitimate users and uses policies to determine which resources each user is allowed to access.
  2. It negotiates with each user's device to determine which EAP method is used for authentication
  3. It enforces access to network services and sends accounting information to the AAA server
  4. It determines which resources authenticated users are allowed to access and monitors each users session

Answer(s): C

Explanation:

In the AAA (Authentication, Authorization, and Accounting) framework, the role of the Network Access Server (NAS) is to act as a gateway that enforces access to network services and sends accounting information to the AAA server. The NAS initially requests authentication information from the user and then passes that information to the AAA server. It also enforces the access policies as provided by the AAA server after authentication and provides accounting data to the AAA server based on user activity.
:
Technical literature on AAA protocols which often includes a description of the roles and responsibilities of a Network Access Server.
Network security resources that discuss the NAS function within the AAA framework.



What is a use case for tunneling traffic between an Aruba switch and an AruDa Mobility Controller (MC)?

  1. applying firewall policies and deep packet inspection to wired clients
  2. enhancing the security of communications from the access layer to the core with data encryption
  3. securing the network infrastructure control plane by creating a virtual out-of-band-management network
  4. simplifying network infrastructure management by using the MC to push configurations to the switches

Answer(s): C

Explanation:

Tunneling traffic between an Aruba switch and an Aruba Mobility Controller (MC) allows for the centralized application of firewall policies and deep packet inspection to wired clients. By directing traffic through the MC, network administrators can implement a consistent set of security policies across both wired and wireless segments of the network, enhancing overall network security posture.


Reference:

Aruba Networks documentation details the use cases for tunneling traffic to an MC, including the application of security and access controls on network traffic.



Refer to the exhibit.



A diem is connected to an ArubaOS Mobility Controller. The exhibit snows all Tour firewall rules that apply to this diem
What correctly describes how the controller treats HTTPS packets to these two IP addresses, both of which are on the other side of the firewall
10.1 10.10
203.0.13.5

  1. It drops both of the packets
  2. It permits the packet to 10.1.10.10 and drops the packet to 203 0.13.5
  3. it permits both of the packets
  4. It drops the packet to 10.1.10.10 and permits the packet to 203.0.13.5.

Answer(s): B

Explanation:

Referring to the exhibit, the ArubaOS Mobility Controller treats HTTPS packets based on the firewall rules applied to the client. The rule that allows svc-https service for destination IP range 10.1.0.0 255.255.0.0 would permit an HTTPS packet to 10.1.10.10 since this IP address falls within the specified range. There are no rules shown that would allow traffic to the IP address 203.0.13.5;

hence, the packet to this address would be dropped.
:
ArubaOS firewall configuration guides detailing how firewall rules are interpreted and applied to traffic.
Network security textbooks explaining firewall rule processing and packet filtering based on source and destination IP addresses.



You have detected a Rogue AP using the Security Dashboard Which two actions should you take in responding to this event? (Select two)

  1. There is no need to locale the AP If you manually contain It.
  2. This is a serious security event, so you should always contain the AP immediately regardless of your company's specific policies.
  3. You should receive permission before containing an AP. as this action could have legal Implications.
  4. For forensic purposes, you should copy out logs with relevant information, such as the time mat the AP was detected and the AP's MAC address.
  5. There is no need to locate the AP If the Aruba solution is properly configured to automatically contain it.

Answer(s): C,D

Explanation:

When responding to the detection of a Rogue AP, it's important to consider legal implications and to gather forensic evidence:
You should receive permission before containing an AP (Option C), as containing it could disrupt service and may have legal implications, especially if the AP is on a network that the organization does not own.
For forensic purposes, it is essential to document the event by copying out logs with relevant information, such as the time the AP was detected and the AP's MAC address (Option D). This information could be crucial if legal action is taken or if a detailed analysis of the security breach is required.
Automatically containing an AP without consideration for the context (Options A and E) can be problematic, as it might inadvertently interfere with neighboring networks and cause legal issues. Immediate containment without consideration of company policy (Option B) could also violate established incident response procedures.
:
Aruba Networks security resources that discuss the appropriate steps in responding to security events.
Industry guidelines on responsible handling of rogue access point detections, including legal considerations and incident documentation.



What is a benefit of Protected Management Frames (PMF). sometimes called Management Frame

Protection (MFP)?

  1. PMF helps to protect APs and MCs from unauthorized management access by hackers.
  2. PMF ensures trial traffic between APs and Mobility Controllers (MCs) is encrypted.
  3. PMF prevents hackers from capturing the traffic between APs and Mobility Controllers.
  4. PMF protects clients from DoS attacks based on forged de-authentication frames

Answer(s): D

Explanation:

Protected Management Frames (PMF), also known as Management Frame Protection (MFP), is designed to protect clients from denial-of-service (DoS) attacks that involve forged de-authentication and disassociation frames. These attacks can disconnect legitimate clients from the network. PMF provides a way to authenticate these management frames, ensuring that they are not forged, thus enhancing the security of the wireless network.
:
IEEE 802.11w amendment, which introduces PMF as a security enhancement to protect management frames.
Wi-Fi Alliance security guidelines for Protected Management Frames (PMF).



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