EMT Practice Test

1. Question Content...

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Question1: Is this a rule for configuring schedule profiles on an ArubaOS-CX switch?
Solution: With the exception of a single strict priority queue, all queues must use the same scheduling algorithm.

Question2: The architect designs a spine and leaf network for a single data center that will use multiple leaf switches as Virtual Tunnel End Points (VTEP). The architect needs to select the type of Integrated Routing & Bridging (IRB) for the solution.
Is this statement about the IRB type true?
Solution: Asymmetric IRB routes packets in the ingress VTEP and then routes packets in the egress VTEP.

Question3: Does this correctly describe the ArubaOS-CX architecture?
Solution: The AtubaOS-CX software is based on the ArubaOS-Switch software and adds data center features.

Question4: The architect designs a spine and leaf network for a single data center that will use multiple leaf switches as Virtual Tunnel End Points (VTEP). The architect needs to select the type of Integrated Routing & Bridging (IRB) for the solution.
Is this statement about the IRB type true?
Solution: In the Asymmetric IRB egress VTEPs bridge the traffic to the destination networks.

Question5: 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.

Question6: Is this a best practice when positioning ArubaOS-CX switches in data center networks?
Solution: Deploy Aruba CX 6300 switches as data center spine switches.

Question7: Is this a difference between a typical data center network's requirements and a typical campus network's requirements?
Solution: Data center network traffic flows are typically east-west whereas while campus networks experience more north-south traffic.

Question8: Does this correctly describe the ArubaOS-CX architecture?
Solution: The Aruba0S-CX Network Analytics Engine (NAE) helps admins to manage multiple Aruba0S-CX switches together using familiar CLI commands.

Question9: Refer to the exhibit. Switch-1, Switch-2, and the router run OSPF on LAG 100, which is a Layer 3 LAG. Does this correctly explain how to control how core-to-access traffic Is forwarded?

Solution: To reduce the amount of traffic sent over the ISI between Switch-1 and Swltch-2. enable active forwarding on LAG 100 on both Switch-1 and Switch-2.

Question10: Does this correctly describe routing information advertised by a VXLAN Tunnel Endpoint (VTEP) that uses EVPN?
Solution: IMET routes advertise the MAC addresses that the VTEP has learned locally in a VXLAN.

Question11: You are using NetEdit to manage AruDaOS-CX switches. You want to deploy a standard config to the switches, but need the config to include a few device-specific settings such as hostname and IP address.
Is this what you should do?
Solution: Create two configuration plans, one with the standard config and one with the device- specific settings.

Question12: 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: IPv6 protocol can be encapsulated in the underlay network's IPv4 packets.

Question13: 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.

Question14: Refer to the exhibit. You want to enable devices in VRF B and VRF C to reach shared resources in VRFA. is this a valid strategy for meeting this goal?

Solution: Create a separate OSPF process for each VRF on Switch-1. Then redistribute each process into the other VRFs' processes.

Question15: Is this a best practice when positioning ArubaOS-CX switches in data center networks?
Solution: Deploy Aruba CX 83xx switches as data center spine switches.

Question16: Your customer is using Nutanix AHV and they need a network orchestration tool to simplify network provisioning. Is this operation supported when Aruba Fabric Composer (AFC) is integrated with Nutanix?
Solution: Automated configuration of Layer 3 MP-BGP protocol on leaf switches

Question17: Refer to the exhibit. You need to set up an ArubaOS-CX switch to implement Virtual Extensible LAN (VXLAN) WITHOUT Ethernet VPN (EVPN). The exhibit Indicates which servers should be part of the same VXLANs and the desired VNls for the VXLANs. Assume that the network is already configured to permit each ArubaOS-CX switch to reach each other switch's loopback interface.

Is this part of the process for setting up VXLAN to meet the requirements?
Solution: On Switch-1, create two VXLAN interfaces, one with ID 5010 and one with 1D 5020; both VXLAN interfaces should use 192.168.1.1 as the source IP address.

Question18: Is this a way that Virtual Switching Extension (VSX) differs from Virtual Switching Framework (VSF)?
Solution: VSX is recommended for the access layer of data centers and campuses while VSF is recommended for the core.

Question19: Is this statement about ARP and ND Suppression true?
Solution: The switch replies to ARP requests with information present in the local ARP Table when ARP-Suppression is enabled.

Question20: Is this a use case for implementing Enhanced Transmission Selection (ETS) on an ArubaOS-CX switch?
Solution: ensures a minimum bandwidth guarantee between two endpoints traffic with various
802.1 p values.

Question21: Is this a use case for implementing Enhanced Transmission Selection (ETS) on an ArubaOS-CX switch?
Solution: to enable the switch to assign the correct priority and bandwidth to traffic that it transmits to servers

Question22: Is this a difference between a typical data center network's requirements and a typical campus network's requirements?
Solution: Data center networks are typically less oversubscribed than campus networks.

Question23: 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.

Question24: Is this a guideline for establishing a Virtual Switching Extension (VSX) Inter-Switch Link (ISL) between two ArubaOS-CX switches?
Solution: Use a link aggregation with multiple 40GbE links or multiple 100GbE links.

Question25: Is this part of the process for using NetEdit to update firmware on ArubaOS-CX switches?
Solution: Use a firmware update plan to manage both updating the Image on selected devices and reboot.

Question26: Is this a way that a data center technology can help meet requirements for multi-tenancy?
Solution: Virtual Extensible LAN (VXLAN) provides millions of IDs to scale for the needs of a multi-tenant environment

Question27: 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.

Question28: Refer to the exhibits. Is this how the switch-1 handles the traffic?


Solution: A broadcast arrives in VLAN 10 on Switch-1. Switch 1 forwards the frame on all interfaces assigned to VLAN 10, except the incoming interface. It encapsulates the broadcast with VXIAN and sends it to 192.168.1.3, out not 192.168.1.2.

Question29: 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.

Question30: A customer's servers use ISCSI, and they send data and storage traffic on the same pair of I OGbE links. Is this a best practice for supporting the ISCSI requirements?
Solution: Use Virtual Routing and Forwarding (VRF) to tunnel iSCSI traffic through the network spine on the same links that data traffic uses.

Question31: Can you attach this type of ArubaOS-CX interface to a VRF?
Solution: a layer 2 VLAN

Question32: Is this a use case for implementing Enhanced Transmission Selection (ETS) on an ArubaOS-CX switch?
Solution: to help the switch to look inside tunneled traffic and apply different quality of service (QoS) settings to different types of traffic

Question33: Does this correctly describe Network Analytics Engine (NAE) limitations on ArubaOS-CX switches?
Solution: You can run NAE with VSX, but only the primary VSX member will actually run agents during normal operation.

Question34: Refer to the exhibit. Switch-1, Switch-2, and the router run OSPF on LAG 100, which is a Layer 3 LAG. Does this correctly explain how to control how core-to-access traffic Is forwarded?

Solution: To reduce the amount of traffic sent over the ISL between Switch-1 and Switch-2.
enable Equal Cost Multi Path (ECMP) on both Switch-1 and Switch-2.

Question35: Is this something that NetEdit 2.0 does after it discovers a switch?
Solution: It enables SNMP on the switch, if disabled.

Question36: Is this how you should position switches in the ArubaOS-CX portfolio for data center networks?
Solution: Deploy Aruba 83xx switches as data center leaf switches.

Question37: Is this statement about ARP and ND Suppression true?
Solution: ARP-Suppression and ND-Suppression must be enabled together.

Question38: Is this how you should position switches in the ArubaOS-CX portfolio tor data center networks?
Solution: Deploy Aruba CX 8400 switches as core switches for very large three-tier data center networks.

Question39: 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.

Question40: Does this correctly describe NetEdit's notification capabilities?
Solution: NetEdit notifies admins of errors using Its Internal email server.

Question41: Is this something that NetEdit 2.0 does after it discovers a switch?
Solution: It enables the switch REST API Interface, if disabled.

Question42: Is this a rule for configuring schedule profiles on an ArubaOS-CX switch?
Solution: If the profile mixes strict priority scheduling with another scheduling algorithm, the strict priority queue must be the highest numbered queue.

Question43: 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 10 ms and should exceed the maximum expected delay for forwarding a frame around the complete ring.

Question44: An ArubaOS-CX is \ssmq DCBX on Interface 1/1/1. You enter this command:
show dcbx interface 1/1/1
Is this where you can see whether the connected converged network adapter (CNA) has accepted the application priorities advertised with DCBX?
Solution: in the Enhanced Transmission Selection (ETS) Local advertisement section

Question45: 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.

Question46: Is this part of the process for using NetEdit to update firmware on ArubaOS-CX switches?
Solution: Upload firmware images to the NetEdit firmware repository.

Question47: The architect designs a spine and leaf network for a single data center that will use multiple leaf switches as Virtual Tunnel End Points (VTEP). The architect needs to select the type of Integrated Routing & Bridging (IRB) for the solution.
Is this statement about the IRB type true?
Solution: Asymmetric IRB requires a third L3 VNI to route packets between ingress and egress VTEPs.

Question48: You are configuring Ethernet Ring Protection Switching (ERPS) on an ArubaOS-CX switch. Is this a guideline for configuring timers?
Solution: The hold off timer causes ERPS switches to delay unblocking a failed link after the link is restored. This can be useful to prevent frequent topology changes.

Question49: Does this correctly describe how the Virtual Switching Extension (VSX) fabric reacts to various component failure scenarios?
Solution: The ISL goes down, and after a few seconds, the keepalive link goes down too. Switch-
1 and Switch-2 remains up.
The Split-recovery mode is enabled. In this case the secondary switch first shutdowns and then enables SVis.

Question50: You are using NetEdit to manage AruDaOS-CX switches. You want to deploy a standard config to the switches, but need the config to include a few device-specific settings such as hostname and IP address.
Is this what you should do?
Solution: Create a conformance validation test to deploy the standard part of the configuration.

Question51: 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.

Question52: Does this correctly describe how Network Analytics Engine (NAE) agents work?
Solution: Agents collect data every minute and send the data to a centralized SNMP server in SNMP traps.

Question53: Is this a use case for deploying Ethernet Ring Protection Switching (ERPS)?
Solution: connecting multiple data centers at Layer 2 while minimizing the number of dark fiber connections required