Practice Free HPE7-A01 Exam Online Questions
Which statements are true regarding a VXLAN implementation on Aruba Switches? (Select two.)
- A . MTU size must be increased beyond the default
- B . VNIs encapsulate and decapsulate VXLAN traffic
- C . VTEPs encapsulate and decapsulate VXLAN traffic
- D . They are only available for datacenter switches (CX 8k, 9k,10k)
- E . All Aruba CX switches support VXLAN.
A C
Explanation:
Option A: MTU size must be increased beyond the default
This is because option A shows how to configure the MTU size for VXLAN tunnels on Aruba switches using the interface command and the vxlan command. The MTU size must be increased beyond the default value of 1500 bytes to accommodate the VXLAN header and payload2.
Therefore, option A is true regarding a VXLAN implementation on Aruba switches. Option B: VNIs encapsulate and decapsulate VXLAN traffic
This is also true regarding a VXLAN implementation on Aruba switches. VNIs are used to encapsulate and decapsulate VXLAN traffic between two devices, such as a switch and a server. VNIs are also used to map VXLAN tunnels to overlay networks3.
Therefore, option B is also true regarding a VXLAN implementation on Aruba switches.
VXLAN is a Layer 2 encapsulation technology that substitutes the usage of VLAN numbers to label Ethernet broadcast domains with VXLAN numbers. VXLAN supports 224 Ethernet broadcast domains or VXLAN numbers. A VXLAN number ID is referred to as VNI. There is a one-to-one relationship between an Ethernet broadcast domain and a VNI. A single Ethernet broadcast domain can’t have more than one VNI.
A customer has a site with 200 AP-515 access points 75AP-565 access points installed. The customer is rolling out new mobile phones with Wi-Fi-calling. 802.1X is in use for authentication.
What should be enabled to ensure the best roaming experience?
- A . 802.1X
- B . 802. 11r
- C . 802.11W
- D . 802 .11h
B
Explanation:
https://www.howtogeek.com/794724/what-is-wi-fi-calling/ 2:
https://www.networkcomputing.com/networking/your-network-optimized-wifi-calling 3:
https://www.arubanetworks.com/techdocs/AOS-CX/10.10/HTML/monitoring_6300-6400/Content/Chp_LEDs/fr Wi-Fi calling is a feature that allows you to make or receive voice calls over Wi-Fi instead of cellular network.
Wi-Fi calling can provide better voice quality and reliability in areas with poor or no cellular coverage.
A customer is using Aruba Cloud Guest, but visitors keep complaining that the captive portal page keeps coming up after devices go to sleep Which solution should be enabled to deal with this issue?
- A . MAC Caching under the splash page
- B . MAC Caching under the user-role
- C . Wireless Caching under the splash page
- D . MAC Caching under the WLAN
You are helping an onsite network technician bring up an Aruba 9004 gateway with ZTP for a branch office The technician was to plug in any port for the ZTP process to start Thirty minutes after the gateway was plugged in new users started to complain they were no longer able to get to the internet. One user who reported the issue stated their IP address is 172.16 0.81 However, the branch office network is supposed to be on 10.231 81.0/24.
What should the technician do to alleviate the issue and get the ZTP process started correctly?
- A . Turn off the DHCP scope on the gateway, and set DNS correctly on the gateway to reach Aruba Activate
- B . Move the cable on the gateway from port G0/0V1 tc port GO 0.0
- C . Move the cable on the gateway to G0/0/1. and add the device’s MAC and Serial number in Central
- D . Factory default and reboot the gateway to restart the process.
When setting up an Aruba CX VSX pair, which information does the Inter-Switch Link Protocol configuration use in the configuration created?
- A . hello interval is disabled by default
- B . hello interval is based on the value set by dead interval
- C . hello interval 100ms by default
- D . hello interval is 1s by default
D
Explanation:
The reason is that the Inter-Switch Link Protocol (ISLP) is a protocol that enables VSX stack join and synchronization between two VSX peer switches. ISLP uses a hello interval to exchange control messages between the switches.
The hello interval is a parameter that specifies the time interval between sending hello messages.
The default value of the hello interval is 1 second. The hello interval can be configured from 1 second to 10 seconds.
https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/index.html
Refer to the exhibit.
With Core-1. what is the default value for config-revision?
- A . 0
- B . 1
- C . 1-0
- D . 0. 0
A
Explanation:
The default value for config-revision on Core-1 is 0. Config-revision is a parameter that indicates the configuration version of a VSX pair. It is used to synchronize the configuration between the VSX peers and to detect any configuration mismatch. The config-revision value is set to 0 by default on both VSX peers and is incremented by 1 every time a configuration change is made on either peer. The other options are incorrect because they do not reflect the default value of config-revision.
References:
https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch07.html
https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch02.html
You are troubleshooting an issue with a pair of Aruba CX 8360 switches configured with VSX Each switch has multiple VRFs. You need to find the IP address of a particular client device with a known MAC address You run the "show arp" command on the primary switch in the pair but do not find a matching entry for the client MAC address.
The client device is connected to an Aruba CX 6100 switch by VSX LAG.
Which action can be used to find the IP address successfully?
A)
B)
C)
D)
- A . Option A
- B . Option B
- C . Option C
- D . Option D
B
Explanation:
The show arp command displays the ARP table for a specific VRF or all VRFs on the switch. The ARP table contains the IP address to MAC address mappings for hosts that are directly connected to the switch or reachable through a gateway. If the client device is connected to another switch by VSX LAG, the ARP entry for the client device will not be present on the primary switch unless it has communicated with it recently.
Therefore, to find the IP address of the client device, the administrator should run the show arp command on the secondary switch in the VSX pair, specifying the VRF name that contains the client device’s subnet.
References: https://techhub.hpe.com/eginfolib/Aruba/OS-CX_10.04/5200-6692/GUID-9B8F6E8F-9C7A-4F0D-AE7B-9D8E
Y ou need to have different routing-table requirements With Aruba CX 6300 VSF configuration.
Assuming the correct layer-2 VLAN already exists, how would you create a new SVI for a separate routing table?
- A . create a new VLAN, and attach the VRF to it.
- B . Create a new routing table, and attach VLANS to it
- C . Create a new SVI and use attach command.
- D . Create a new VLAN. and attach the routing table to it
C
Explanation:
The correct answer is C. Create a new SVI and use attach command.
To create a new SVI for a separate routing table, you need to use the attach command to associate the SVI with a VRF (Virtual Routing and Forwarding) instance. A VRF is a logical entity that allows multiple routing tables to coexist on the same switch. Each VRF has its own set of interfaces, routing protocols, and routes that are isolated from other VRFs.
According to the AOS-CX Virtual Switching Framework (VSF) Guide1, one of the steps to configure VRF-aware VSF is:
Configure the VRFs on each member switch and assign the SVIs to the respective VRFs using the attach command.
For example:
switch(config)# vrf red
switch(config-vrf)# exit
switch(config)# interface vlan 10
switch(config-if-vlan)# ip address 10. 1.1. 1/24
switch(config-if-vlan)# attach vrf red
The above commands create a VRF named red and assign VLAN 10 SVI to it. The SVI has an IP address of 10. 1.1. 1/24.
The other options are incorrect because:
A) You cannot attach a VRF to a VLAN directly. You need to create an SVI for the VLAN and then attach the VRF to the SVI.
B) You cannot create a new routing table manually. You need to create a VRF and then use routing protocols or static routes to populate the routing table for the VRF.
D) You cannot attach a routing table to a VLAN directly. You need to create an SVI for the VLAN and then attach a VRF that has a routing table associated with it.
With the Aruba CX 6100 48G switch with uplinks of 1/1/47 and 1/1/48.
H ow do you automate the process of resuming the port operational state once a loop on a client port is cleared?
- A . Configure int 1/1/1-1/1/52 loop-protect disable timer.
- B . Configure global loop-protect disable timer.
- C . Configure int 1/1/1-1/1/46 loop-protect re-enable-timer.
- D . Configure global loop-protect re-enable-timer.
D
Explanation:
In the Aruba CX 6100 48G switch, to automate the resumption of the operational state of a client port once a loop is cleared, the loop protection re-enable timer should be used. This timer setting allows for the automatic re-enabling of the port after a specified time once it has been automatically disabled due to the detection of a loop.
By configuring the global loop-protect re-enable timer, the process of automatically resuming the port’s operation can be automated across the entire switch. When any port detects a loop and then the loop is cleared, the port will automatically return to operational status after the set time.
List the WPA 4-Way Handshake functions in the correct order.
Explanation:
* Proves knowledge of the PMK
* Exchanges messages for generating PTK
* Distributes an encrypted GTK to the client
* Sets first initialization vector (IV)