Free HPE6-A85: Aruba Certified Campus Access Associate Exam Questions and Answers
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Last updated: September 19, 2026
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Question #1
You need to troubleshoot an Aruba CX 6200 4-node VSF stack switch that fails to boot correctly Select the option that allows you to access the switch and see the boot options available for OS images and ServiceOS.
Please select an optionIncorrectCorrect answer: C
The option that allows you to access the switch and see the boot options available for OS images and ServiceOS is Conductor USB-C console port. This option provides direct access to ServiceOS, which is an operating system that runs on Aruba CX switches independently of AOS-CX Aruba Operating System CX (AOS- CX) is an operating system that runs on Aruba CX switches . ServiceOS provides low-level functions such as booting, firmware upgrades, password recovery, hardware diagnostics, switch stacking, and system recovery. ServiceOS can be accessed through one of two methods: • Conductor USB-C console port: This method allows you to connect your PC or laptop to the USB-C console port on any member switch in a VSF stack using a USB-C cable. This method provides direct access to ServiceOS without requiring any configuration or authentication on AOS-CX. • AOS-CX CLI: This method allows you to access ServiceOS through AOS-CX CLI using SSH or Telnet protocols. This method requires you to configure an IP address on AOS-CX and authenticate with your username and password. To see the boot options available for OS images and ServiceOS, you need to access ServiceOS through Conductor USB-C console port and enter boot menu command at ServiceOS prompt. The other options do not allow you to access the switch and see the boot options available for OS images and ServiceOS because: • Member 2 RJ-45 console port: This option allows you to connect your PC or laptop to the RJ-45 console port on any member switch in a VSF stack using an RJ-45 cable. This option provides direct access to AOS-CX CLI, not ServiceOS. • Member 2 switch mgmt port: This option allows you to connect your PC or laptop to the switch mgmt port on any member switch in a VSF stack using an Ethernet cable. This option provides indirect access to AOS-CX CLI through SSH or Telnet protocols, not ServiceOS. • Conductor mgmt port using SSH: This option allows you to connect your PC or laptop to the mgmt port on any member switch in a VSF stack using an Ethernet cable. This option provides indirect access to AOS-CX CLI through SSH protocol, not ServiceOS. References: https://www.arubanetworks.com/techdocs/AOS- CX_10_08/NOSCG/Content/cx-noscg/serviceos/serviceos-overview.htm https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx- noscg/serviceos/access-serviceos.htm https://www.arubanetworks.com/techdocs/AOS- CX_10_08/NOSCG/Content/cx-noscg/serviceos/boot-menu.htm
Was this answer correct?Question #2
When performing live firmware upgrades on Aruba APs. which technology partitions all the APs based on RF neighborhood data minimizing the impact on clients?
Please select an optionIncorrectCorrect answer: C
Aruba AirMatch is a feature that optimizes RF Radio Frequency. RF is any frequency within the electromagnetic spectrum associated with radio wave propagation. When an RF current is supplied to an antenna, an electromagnetic field is created that then is able to propagate through space. performance and user experience by using machine learning algorithms and historical data to dynamically adjust AP power levels, channel assignments, and channel width. AirMatch performs live firmware upgrades on Aruba APs by partitioning all the APs based on RFneighborhood data and minimizing the impact on clients. AirMatch uses a rolling upgrade process that upgrades one partition at a time while ensuring that adjacent partitions are not upgraded simultaneously. References: https://www.arubanetworks.com/assets/ds/DS_AirMatch.pdfhttps://www.arubanetworks.co m/techdocs/ArubaOS_86_Web_Help/Content/arubaos- solutions/arm/AirMatch.htm
Was this answer correct?Question #3
Based on the "show ip route" output on an Aruba CX 8400, what type of route is "10.1.20.0/24, vrf default via 10.1.12.2, [1/0]"?
Please select an optionIncorrectCorrect answer: B
A static route is a route that is manually configured on a router or switch and does not change unless it is modified by an administrator. Static routes are used to specify how traffic should reach specific destinations that are not directly connected to the device or that are not reachable by dynamic routing protocols. In Aruba CX switches, static routes can be configured using the ip route command in global configuration mode. Based on the ??show ip route?? output on an Aruba CX 8400 switch, the route ??10.1 20 0/24, vrf default via 10.1.12.2, [1/0]?? is a static route because it has an administrative distance of 1 and a metric of 0, which are typical values for static routes. References: https://en.wikipedia.org/wiki/Static_routing https://www.arubanetworks.com/techdocs/AOS- CX_10_04/NOSCG/Content/cx-noscg/ip-routing/static- routes.htmhttps://www.arubanetworks.com/techdocs/AOS-CX_10_04/NOSCG/Content/cx- noscg/ip- routing/show-ip-route.htm
Was this answer correct?Question #4
Which field in a Layer 3 IPv4 packet header is used to mitigate Layer 3 route loops?
Please select an optionIncorrectCorrect answer: B
The field in a Layer 3 IPv4 packet header that is used to mitigate Layer 3 route loops is Time To Live (TTL). TTL is an 8-bit field that indicates the maximum number of hops that a packet can traverse before being discarded. TTL is set by the source device and decremented by one by each router that forwards the packet. If TTL reaches zero, the packet is dropped and an ICMP Internet Control Message Protocol (ICMP) Internet Control Message Protocol (ICMP) is a network protocol that provides error reporting and diagnostic functions for IP networks. ICMP is used to send messages such as echo requests and replies (ping), destination unreachable, time exceeded, parameter problem, source quench, redirect, etc. ICMP messages are encapsulated in IP datagrams and have a specific format that contains fields such as type, code, checksum, identifier, sequence number, data, etc. ICMP messages can be verified by using commands such as ping , traceroute , debug ip icmp , etc . message is sent back to the source device. TTL is used to mitigate Layer 3 route loops because it prevents packets from circulating indefinitely in a looped network topology. TTL also helps to conserve network resources and avoid congestion caused by looped packets. The other options are not fields in a Layer 3 IPv4 packet header because: • Checksum: Checksum is a 16-bit field that is used to verify the integrity of the IP header. Checksum is calculated by the source device and verified by the destination device based on the values of all fields in the IP header. Checksum does not mitigate Layer 3 route loops because it does not limit the number of hops that a packet can traverse. • Protocol: Protocol is an 8-bit field that indicates the type of payload carried by the IP datagram. Protocol identifies the upper-layer protocol that uses IP for data transmission, such as TCP Transmission Control Protocol (TCP) Transmission Control Protocol (TCP) is a connection-oriented transport layer protocol that provides reliable, ordered, and error-checked delivery of data between applications on different devices . TCP uses a three-way handshake to establish a connection between two endpoints , and uses sequence numbers , acknowledgments , and windowing to ensure data delivery and flow control . TCP also uses mechanisms such as retransmission , congestion avoidance , and fast recovery to handle packet loss and congestion . TCP segments data into smaller units called segments , which are encapsulated in IP datagrams and have a specific format that contains fields such as source port , destination port , sequence number , acknowledgment number , header length , flags , window size , checksum , urgent pointer , options , data , etc . TCP segments can be verified by using commands such as telnet , ftp , ssh , debug ip tcp transactions , etc . , UDP User Datagram Protocol (UDP) User Datagram Protocol (UDP) is a connectionless transport layer protocol that provides
Was this answer correct?Question #5
Which device configuration group types can a user define in Aruba Central during group creation? (Select two.)
Select 2 answers.
Please select an optionIncorrectCorrect answer: B, D
When you create a device configuration group in Aruba Central you choose its type: a Template group, configured through CLI-style templates with variables, or a UI group, configured through the Central web interface. The default group is created automatically and is not a user-defined type.
Was this answer correct?Question #6
Describe the purpose of the administrative distance
Please select an optionIncorrectCorrect answer: B
Administrative distance is a trust or believability rating applied to routes from different sources, and when the same prefix is learned twice the route with the lower distance is installed.
Was this answer correct?Question #7
Refer to the exhibit. In the given topology, a pair of Aruba CX 8325 switches are in a VSX stack using the active gateway What is the nature and behavior of the Virtual IP for the VSX pair if clients are connected to the access switch using VSX as the default gateway?
Please select an optionIncorrectCorrect answer: B
Virtual Switching Extension (VSX) is a feature that allows two Aruba CX switches to operate as a single logical device with a single control plane and data plane. VSX provides high availability, scalability, and simplified management for campus and data center networks3. In VSX, one switch is designated as the primary switch and the other as the secondary switch. The primary switch owns and responds to ARP Address Resolution Protocol. ARP is a communication protocol used for discovering the link layer address, such as a MAC address, associated with a given internet layer address, typically an IPv4 address. This mapping is a critical function in the Internet protocol suite. requests for the virtual IP address of the VSX pair4. The virtual IP address is used as the default gateway for clients connected to the access switch. If the primary switch fails, the secondary switch takes over the virtual IP address and continues to forward traffic for the clients5. References: 3 https://www.arubanetworks.com/techdocs/AOS- CX_10_04/UG/Content/cx-ug/vsx/vsx-overview.htm 4 https://www.arubanetworks.com/techdocs/AOS-CX_10_04/UG/Content/cx-ug/vsx/vsx-ip- addressing.htm 5 https://www.arubanetworks.com/techdocs/AOS- CX_10_04/UG/Content/cx-ug/vsx/vsx-failover.htm
Was this answer correct?Question #8
Which part of the WPA Key Hierarchy is used to encrypt and/or decrypt data?
Please select an optionIncorrectCorrect answer: A
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
Was this answer correct?Question #9
Which statement about manual switch provisioning with Aruba Central is correct?
Please select an optionIncorrectCorrect answer: B
Manual provisioning is a method to add switches to Aruba Central without using DHCP or DNS. It requires the user to enter the switch serial number, MAC address, and activation code in Aruba Central, and then configure the switch with the same activation code and Aruba Central's IP address. References:https://help.central.arubanetworks.com/latest/documentation/online_help/conte nt/devices/switches/provisioning/manual-provisioning.htm
Was this answer correct?Question #10
A customer has just implemented user and device certificates via a company-wide Group Based Policy (GPO) Which EAP method requires client certificates when authenticating to the network?
Please select an optionIncorrectCorrect answer: B
EAP-TLS is an authentication method that requires client certificates when authenticating to the network. It provides mutual authentication between the client and the server using public key cryptography and digital certificates. References:https://www.arubanetworks.com/techdocs/ClearPass/6.9/Guest/Content/CPPM _UserGuide/EAP-TLS/EAP-TLS.htm
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