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NEW QUESTION # 55
Refer to the exhibits.
Is this how the switch handles the traffic?
Solution: A broadcast arrives in VLAN 10 on Switch-1. Switch 1 forwards the frame on all interfaces assigned to VLAN10, except the incoming interface. It encapsulates the broadcast with VXIAN and sends it to 192.168.1.2. but not 192.168.1.3.
- A. Yes
- B. No
Answer: A
NEW QUESTION # 56
Is this a guideline for establishing a Virtual Switching Extension (V5X) Inter-Switch Link (ISL) between two ArubaOS-CX switches?
Solution: Use the same speed on every link In the ISL.
- A. Yes
- B. No
Answer: A
NEW QUESTION # 57
You are configuring Ethernet Ring Protection Switching (ERPS) on an ArubaOS-CX switch. Is this a guideline for configuring timers?
Solution: The guard interval is set in units of seconds and is used to prevent frequent topology changes due to a link going up and down.
- A. Yes
- B. No
Answer: B
Explanation:
The guard interval is set in units of seconds and is used to prevent frequent topology changes due to a link going up and down is not a guideline for configuring timers for Ethernet Ring Protection Switching (ERPS) on an ArubaOS-CX switch. The guard interval is set in units of milliseconds, not seconds, and it is used to prevent false ring failures due to short link outages or flapping1.
NEW QUESTION # 58
A data center has a three-tier topology with ArubaOS-CX switches at each layer, is this a use case for implementing Virtual Switching Extension (VSX) at the core?
Solution: The aggregation layer operates at Layer 2 only, and the core provides Layer 2 and Layer 3 functions.
- A. Yes
- B. No
Answer: B
NEW QUESTION # 59
Is this part of a valid strategy for load sharing traffic across the links in an Ethernet Ring Protection Switching IERPS) solution?
Solution: Implement Virtual Switching Extension (VSX) on pairs of ERPS switches at the same site.
- A. Yes
- B. No
Answer: B
NEW QUESTION # 60
Your task is to configure an EVPN solution for a dual-stack IPv4 and IPv6 protocol in the overlay networks. Is this statement about EVPN and IPv6 correct?
Solution: The IPv6 and IPv4 overlay networks can be encapsulated with VXLAN and transmitted through the underlay network.
- A. Yes
- B. No
Answer: A
Explanation:
The IPv6 and IPv4 overlay networks can be encapsulated with VXLAN and transmitted through the underlay network is a true statement about EVPN and IPv6 for configuring an EVPN solution for a dual-stack IPv4 and IPv6 protocol in the overlay networks. VXLAN is a feature that provides Layer 2 extension over Layer 3 networks using UDP encapsulation. VXLAN can support both IPv4 and IPv6 overlay networks over an IPv4 or IPv6 underlay network2.
NEW QUESTION # 61
Is this a use case for deploying Ethernet Ring Protection Switching (ERPS)?
Solution: extending Layer 2 communications between data centers that connect over Layer 3 MPLS links
- A. Yes
- B. No
Answer: B
NEW QUESTION # 62
Is this a way that a data center technology can help meet requirements for multi-tenancy?
Solution: Virtual Routing and Forwarding (VRF) enables multiple isolated Layer 3 domains, each with its own routing table, to share a physical network.
- A. Yes
- B. No
Answer: A
Explanation:
Multi-tenancy is the ability to provide network services to multiple independent customers or tenants on a shared physical infrastructure. One of the challenges of multi-tenancy is to ensure isolation and security between different tenants, while also providing scalability and efficiency. Virtual Routing and Forwarding (VRF) is a data center technology that can help meet these requirements by enabling multiple isolated Layer 3 domains, each with its own routing table, to share a physical network1. VRF allows different tenants to use overlapping IP addresses and routing protocols without interfering with each other. Therefore, this is a valid way that a data center technology can help meet requirements for multi-tenancy.
NEW QUESTION # 63
Refer to the exhibits.
Is this how the switch handles the traffic?
Solution: A frame with destination MAC address, 00:50:56:15:16:28, arrives with a VLAN 10 tag on 1/1/1 on Switch-1. Switch-1 encapsulates the frame with VXLAN and an IP header destined to 192.168.1.2.
- A. Yes
- B. No
Answer: B
NEW QUESTION # 64
Is this a use case for disabling split-recovery mode on ArubaOS-CX switches in a Virtual Switching Extension (VSX) fabric?
Solution: You are not concerned about split brain Issues in your environment, so you want the secondary member to keep its links up if the ISL falls.
- A. Yes
- B. No
Answer: A
Explanation:
You are not concerned about split brain issues in your environment, so you want the secondary member to keep its links up if the ISL fails is a use case for disabling split-recovery mode on ArubaOS-CX switches in a Virtual Switching Extension (VSX) fabric. VSX is a feature that provides active-active forwarding and redundancy for ArubaOS-CX switches. The ISL is the inter-switch link that connects two VSX nodes and carries data traffic. The split-recovery mode is a feature that prevents split-brain scenarios when both VSX nodes lose connectivity with each other but remain up. When split-recovery mode is disabled, if the ISL fails but both VSX nodes remain up,
NEW QUESTION # 65
Can you attach this type of ArubaOS-CX interface to a VRF?
Solution: a GRE tunnel interface
- A. Yes
- B. No
Answer: A
Explanation:
A GRE tunnel interface is a virtual interface that can encapsulate different network layer protocols inside point-to-point or point-to-multipoint links over an IP network1. It can be assigned an IP address and attached to a VRF. A VRF allows multiple instances of a routing table to co-exist within the same router2. By attaching a GRE tunnel interface to a VRF, you can isolate the traffic of that tunnel from other tunnels and routing domains2.
NEW QUESTION # 66
Is this correct positioning of AtubaOS-CX switches in the data center?
Solution: Aruba CX 8325 switches are an appropriate choice for leaf switches in a leaf-spine topology that uses Virtual Extensible LAN (VXLAN) with Ethernet VPN (EVPN).
- A. Yes
- B. No
Answer: B
NEW QUESTION # 67
Two ArubaOS-CX switches ate part of a Virtual Switching Extension (V5X) fabric. Is this a guideline for configuring the switches' link-up delay settings?
Solution: Set the link-up delay timer based on the number of MAC forwarding, ARP, and routing table entries.
- A. Yes
- B. No
Answer: B
NEW QUESTION # 68
You want to use NetEdit to configure an AtubaOS-CX switch.
Is this a minimum requirement for setting up communications between the switch and NetEdit?
Solution: Enable the REST interface in read-only mode.
- A. Yes
- B. No
Answer: B
NEW QUESTION # 69
Is this correct positioning of AtubaOS-CX switches in the data center?
Solution: A data center will use a leaf-spine topology and requires 64 leaf switches. Aruba CX 8325 switches can be a good choice for both the leaf and spine switches.
- A. Yes
- B. No
Answer: A
Explanation:
ArubaOS-CX switches are designed for enterprise campus, aggregation, and data center networking use cases1. ArubaOS-CX switches support a leaf-spine topology, which is a two-layer network architecture that provides high performance, scalability, and reliability for data center networks2. Aruba CX 8325 switches are compact 1U switches that offer high density and high speed connectivity for both leaf and spine switches3. Aruba CX 8325 switches can support up to 32 ports of 100GbE or 48 ports of 25GbE and 8 ports of 100GbE3. For a data center that requires 64 leaf switches, Aruba CX 8325 switches can be a good choice for both the leaf and spine switches, as they can provide enough bandwidth and port density for the network traffic3. Therefore, this is a correct positioning of ArubaOS-CX switches in the data center, and the correct answer is yes. For more information on ArubaOS-CX switches and data center solutions, refer to the Aruba Data Center Network Specialist (ADCNS) certification datasheet and the Aruba CX Switch Series datasheets3 .
NEW QUESTION # 70
Is this a requirement for implementing Priority Flow Control (PFC) on an ArubaOS-CX switch interface?
Solution: configuring a DCBX application priority on the interface
- A. Yes
- B. No
Answer: A
Explanation:
Priority Flow Control (PFC) is a feature of ArubaOS-CX that eliminates packet loss due to congestion on a network link1. PFC uses IEEE 802.1Qbb standard to pause traffic on a per-priority basis1. PFC can be configured to operate in symmetric or asymmetric mode1. Symmetric mode applies PFC to both the receiving and sending of pause frames1. Asymmetric mode applies PFC to either the receiving or sending of pause frames1. To configure PFC on an interface, you need to enable flow control with a priority value and configure a DCBX application priority on the interface1. A DCBX application priority maps a traffic class to a priority group and enables the switch to negotiate PFC parameters with the peer device1. Therefore, this is a requirement for implementing PFC on an ArubaOS-CX switch interface, and the correct answer is yes. For more information on PFC and DCBX, refer to the Aruba Data Center Network Specialist (ADCNS) certification datasheet2 and the QoS Guide for your switch model1.
NEW QUESTION # 71
You enter this command on an ArubaOS-CX switch:
Switch# show erps status ring 1
Is this what the specified status means?
Solution: The status is Idle, which means that the ring is up and fully connected with the RPL port blocked.
- A. Yes
- B. No
Answer: B
Explanation:
The status is Idle, which means that the ring is up and fully connected with the RPL port blocked is not what the specified status means for Ethernet Ring Protection Switching (ERPS) on an ArubaOS-CX switch. Idle is one of the possible statuses for an ERPS ring instance, but it indicates that the ring is not operational and no port is blocked. This can happen when the ring is not configured properly or when there is a miscommunication between the nodes1.
NEW QUESTION # 72
Is this how you should position switches in the ArubaOS-CX portfolio for data center networks?
Solution: Deploy Aruba 8400 switches as data center leaf switches.
- A. Yes
- B. No
Answer: B
Explanation:
The ArubaOS-CX portfolio for data center networks consists of different switches for different roles. The Aruba 8400 switches are designed for the core and aggregation layers, while the Aruba CX 6300 and CX 6400 switches are designed for the leaf layer1. Therefore, deploying Aruba 8400 switches as data center leaf switches is not how you should position switches in the ArubaOS-CX portfolio for data center networks. Reference: https://www.arubanetworks.com/solutions/data-center-modernization/
NEW QUESTION # 73
Refer to the exhibit.
which shows the topology tot an Ethernet Ring Protection Switching (ERPS) solution.
Is this a valid design for the control and protected VLANs on the VSX fabric 1 switches?
Solution: Ring l, instance 1:
control VLAN: 1000 protected VLANs: 51-135 Ring 1, Instance 2:
control VLAN: 1000 protected VLANs: 136-220 Ring 2, Instance 1: control VLAN: 1001 protected VLANs: 181 -200 Ring 2, Instance 2: control VLAN: 1001 protected VLANs: 201 -220
- A. Yes
- B. No
Answer: A
NEW QUESTION # 74
Refer to the exhibits.
Is this how the switch handles the traffic?
Solution: A broadcast arrives in VLAN 10 on Switch-1. Switch 1 forwards the frame on all interfaces assigned to VLAN10, except the incoming interface. It encapsulates the broadcast with VXIAN and sends it to 192.168.1.2. but not 192.168.1.3.
- A. Yes
- B. No
Answer: B
Explanation:
A broadcast arrives in VLAN 10 on Switch-1. Switch 1 forwards the frame on all interfaces assigned to VLAN10, except the incoming interface. It encapsulates the broadcast with VXLAN and sends it to 192.168.1.2, but not 192.168.1.3 is not a correct explanation of how the switch handles the traffic. Switch-1, Switch-2, and Switch-3 are ArubaOS-CX switches that use VXLAN and EVPN to provide Layer 2 extension over Layer 3 networks. VXLAN is a feature that uses UDP encapsulation to tunnel Layer 2 frames over Layer 3 networks using VNIs. EVPN is a feature that uses BGP to advertise multicast information for VXLAN networks using IMET routes. Switch-1 receives a broadcast in VLAN 10, which belongs to VNI 5010. Switch-1 forwards the frame on all interfaces assigned to VLAN 10, except the incoming interface, as per normal Layer 2 switching behavior. However, Switch-1 does not encapsulate the broadcast with VXLAN and send it only to 192.168.1.2, which is Switch-3's loopback interface, but rather replicates the broadcast, encapsulates each broadcast with VXLAN, and sends the VXLAN traffic to both 192.168.1.2 and 192.168.1.3, which are Switch-3's and Switch-2's loopback interfaces respectively1.
NEW QUESTION # 75
AtubaOS-CX switches are acting as Virtual Extensible LAN (VXLAN) Tunnel Endpoints (VTEPs) WITHOUT Ethernet VPN (EVPN).
Does this correctly describe how the VTEPs handle VXLAN traffic forwarding?
Solution: VTEPs that use headend replication forward broadcast as multicast to each VTEP in the same VNI.
- A. Yes
- B. No
Answer: A
Explanation:
VXLAN is a tunneling protocol that encapsulates layer 2 traffic over an IP network using VXLAN Network Identifiers (VNIs) to identify different layer 2 segments. VXLAN Tunnel Endpoints (VTEPs) are devices that perform the encapsulation and decapsulation of VXLAN packets. VTEPs can use different methods to handle broadcast, unknown unicast, and multicast (BUM) traffic within a VNI. One of these methods is headend replication, which means that the VTEP that receives a BUM packet replicates it and sends it as a unicast to each remote VTEP in the same VNI1. This method does not require multicast routing in the underlay network, but it can increase the load on the ingress VTEP. Therefore, this correctly describes how the VTEPs handle VXLAN traffic forwarding without EVPN.
NEW QUESTION # 76
Refer to the exhibits.
Is this how the switch handles the traffic?
Solution: A broadcast arrives with a VLAN 10 tag on 1/1/1 on Switch-1. Switch 1 drops the frame.
- A. Yes
- B. No
Answer: B
Explanation:
Based on the exhibits, Switch-1 has a trunk port on 1/1/1 that allows VLANs 10 and 20. Switch-2 has an access port on 1/1/2 that belongs to VLAN 10. Switch-3 has an access port on 1/1/3 that belongs to VLAN 20. If a broadcast arrives with a VLAN 10 tag on 1/1/1 on Switch-1, Switch-1 does not drop the frame. Instead, Switch-1 forwards the frame to all ports that belong to VLAN 10, which includes the trunk port 1/1/2 and the access port 1/1/4. Switch-2 receives the frame on its access port 1/1/2 and forwards it to all ports in VLAN 10, which includes the access port 1/1/5. Switch-3 does not receive the frame because it is not in VLAN 10. Therefore, this is not how the switch handles the traffic, and the correct answer is no.
NEW QUESTION # 77
Is this part of a valid strategy for load sharing traffic across the links in an Ethernet Ring Protection Switching (ERPS) ring?
Solution: Combine multiple links between two data centers into link aggregations (but not multi-chassis ones).
- A. Yes
- B. No
Answer: B
NEW QUESTION # 78
Your task is to configure an EVPN solution for a dual-stack IPv4 and IPv6 protocol in the overlay networks. Is this statement about EVPN and IPv6 correct?
Solution: Different virtual MAC must be used for IPv4 and IPv6 Active Gateway.
- A. Yes
- B. No
Answer: B
Explanation:
Different virtual MAC must be used for IPv4 and IPv6 Active Gateway is not a true statement about EVPN and IPv6 for configuring an EVPN solution for a dual-stack IPv4 and IPv6 protocol in the overlay networks. Active Gateway is a feature that provides first-hop redundancy for hosts connected to VTEPs using anycast gateway addresses. Active Gateway can use the same virtual MAC address for both IPv4 and IPv6 protocols on the same VNI2.
NEW QUESTION # 79
You are configuring Ethernet Ring Protection Switching (ERPS) on an ArubaOS-CX switch. Is this a guideline for configuring timers?
Solution: The wait to restore timer (WTR) Is set in units of minutes; you can set it to prevent frequent topology changes due to a link going up and down.
- A. Yes
- B. No
Answer: A
Explanation:
The wait to restore timer (WTR) Is set in units of minutes; you can set it to prevent frequent topology changes due to a link going up and down is a guideline for configuring timers for Ethernet Ring Protection Switching (ERPS) on an ArubaOS-CX switch. The WTR timer is set in units of minutes, and it defines how long a node must wait before restoring traffic on a previously failed link that has recovered1.
NEW QUESTION # 80
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