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| Section | Objectives |
|---|---|
| Topic 1: Aruba Campus Access Architecture | - Campus network design principles - Aruba OS-CX switching fundamentals - Aruba access layer components |
| Topic 2: Networking Fundamentals | - IP addressing and subnetting - Basic switching and routing concepts - OSI model and TCP/IP basics |
| Topic 3: Security and Access Control | - Authentication methods (802.1X) - Network segmentation (VLANs, policies) - Role-based access control |
| Topic 4: Operations and Troubleshooting | - Basic network troubleshooting tools - Monitoring and logging concepts |
| Topic 5: Wireless LAN Fundamentals | - Wi-Fi standards and concepts - SSID and WLAN configuration basics - Access point operation and roaming concepts |
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NEW QUESTION # 118
What does the status of "ALFOE" mean when checking LACP with "show lacp interfaces'"?
Answer: B
Explanation:
Explanation
The status of "ALFOE" means that LACP Link Aggregation Control Protocol (LACP) is a network protocol that provides dynamic negotiation of link aggregation between two devices. LACP allows multiple physical links to be combined into a single logical link for increased bandwidth, redundancy, and load balancing. LACP is defined in IEEE 802.3ad standard. is working fine with no problems when checking LACP with "show lacp interfaces". The status of "ALFOE" is an acronym that stands for:
A: Active - The interface is actively sending LACP packets to negotiate link aggregation with the peer device.
L: Link Up - The interface has physical connectivity with the peer device.
F: Aggregatable - The interface can be aggregated with other interfaces into a single logical link.
D: Synchronized - The interface has successfully negotiated link aggregation parameters with the peer device and can transmit or receive traffic on the logical link.
E: Collecting/Distributing - The interface is collecting incoming traffic from the peer device and distributing outgoing traffic to the peer device on the logical link.
The other options are not correct because:
The interface on the local switch is configured as static-LAG: This option is false because static-LAG does not use LACP to negotiate link aggregation. Static-LAG requires manual configuration of link aggregation parameters on both devices and does not have any status indicators.
LACP is not configured on the peer side: This option is false because if LACP is not configured on the peer side, the status of the interface would be "ALF-" instead of "ALFOE". This means that the interface would not be synchronized or collecting/distributing with the peer device.
LACP is in a synchronizing process: This option is false because if LACP is in a synchronizing process, the status of the interface would be "ALF-O" instead of "ALFOE". This means that the interface would not be collecting/distributing with the peer device.
References:
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/lag/lag-overview.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/lag/lag-lacp.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/lag/lag-lacp-status.htm
NEW QUESTION # 119
You have been asked to onboard a new Aruba 6300M in a customer deployment. You are working remotely rather than on-site. You have a colleague installing the switch. The colleague has provided you with a remote console session to configure the edge switch. You have been asked to configure a link aggregation going back to the cores using interfaces 1/1/51 and 1/1/52.
The Senior Engineer of the project has asked you to configure the switch and IQ uplink with these guidelines:
1. Add VLAN 20 to the local VLAN database with name Mgmt
2. Add L3 SVl on VLAN 20 for Management using address 10 in the
10.1.1.0/24 subnet
3. Add LAG 1 using LACP mode active for the uplink
4. Use vlan 20 as the native vlan on the LAG
5. Make sure the interfaces are all ON.
Which configuration script will achieve the task?
Answer: A
Explanation:
This configuration script will achieve the task as it follows the guidelines given by the Senior Engineer. It creates VLAN 20 with name Mgmt, adds L3 SVI on VLAN 20 with IP address
10.1.1.10/24, creates LAG 1 with LACP mode active for the uplink, uses VLAN 20 as the native VLAN on the LAG, and ensures that the interfaces are all ON.
NEW QUESTION # 120
How does a single Aruba CX 6300M switch configuration use L3 connectivity to establish routing traffic between switch virtual interfaces 120 and 130?
Answer: D
Explanation:
On an Aruba CX 6300M switch, routing between Switch Virtual Interfaces (SVIs) is enabled by default. Therefore, traffic between SVIs, like 120 and 130, can be routed internally without the need for additional configuration such as route leaking or static routes, as long as there is no 'no routing' configuration present on the SVIs.
NEW QUESTION # 121
What does WPA3-Personal use as the source to generate a different Pairwise Master Key (PMK) each time a station connects to the wireless network?
Answer: B
Explanation:
WPA3-Personal enhances the security of wireless networks by using Simultaneous Authentication of Equals (SAE), which is a more secure replacement for the Pre-Shared Key (PSK) method used in WPA2. SAE strengthens the initial key exchange, providing better protection against offline dictionary attacks and ensuring that each session has a unique Pairwise Master Key (PMK), derived from the interaction between the client and the access point, including session-specific information like MAC addresses and nonces.
NEW QUESTION # 122
Which part of the WPA Key Hierarchy is used to encrypt and/or decrypt data''
Answer: C
Explanation:
The part of WPA Key Hierarchy that is used to encrypt and/or decrypt data is Pairwise Temporal Key (PTK). PTK is a key that is derived from PMK Pairwise Master Key (PMK) is a key that is derived from PSK Pre-shared Key (PSK) is a key that is shared between two parties before communication begins, ANonce Authenticator Nonce (ANonce) is a random number generated by an authenticator (a device that controls access to network resources, such as an AP), SNonce Supplicant Nonce (SNonce) is a randomnumber generated by supplicant (a device that wants to access network resources, such as an STA), AA Authenticator Address (AA) is MAC address of authenticator, SA Supplicant Address (SA) is MAC address of supplicant using Pseudo-Random Function (PRF).
PTK consists of four subkeys:
- KCK Key Confirmation Key (KCK) is used for message integrity check
- KEK Key Encryption Key (KEK) is used for encryption key distribution
- TK Temporal Key (TK) is used for data encryption
- MIC Message Integrity Code (MIC) key
The subkey that is specifically used for data encryption is TK Temporal Key (TK). TK is also known as Pairwise Transient Key (PTK). TK changes periodically during communication based on time or number of packets transmitted.
The other options are not part of WPA Key Hierarchy because:
- PMK: PMK is not part of WPA Key Hierarchy, but rather an input for deriving PTK.
- KCK: KCK is part of WPA Key Hierarchy, but it is not used for data encryption, but rather for message integrity check.
- Nonce: Nonce is not part of WPA Key Hierarchy, but rather an input for deriving PTK.
References:
https://en.wikipedia.org/wiki/Wi-Fi_Protected_Access#WPA_key_hierarchy_and_management
https://www.cwnp.com/wp-content/uploads/pdf/WPA2.pdf
NEW QUESTION # 123
......
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