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Cisco 300-620 Sample Question Answers
Question # 1
An engineer must create a backup of the Cisco ACI fabric for disaster recovery purposes.The backup must be transferred over a secure and encrypted transport. The backup filemust contain all user and password related information. The engineer also wants toprocess and confirm the backup file validity by using a Python script. This requires the datastructure to have a format similar to a Python dictionary. Which configuration set must beused to meet these requirements?
A. Under the Create Remote location settings, select Protocol: FTP Under the Export policy, select - Format: XML - Modify Global AES Encryption Settings: Enabled B. Under the Create Remote location settings, select Protocol: FTP Under the Export policy, select - Format: XML - Modify Global AES Encryption Settings: Disabled C. Under the Create Remote location settings, select Protocol: SCP Under the Export policy, select - Format: JSON - Modify Global AES Encryption Settings: Disabled D. Under the Create Remote location settings, select Protocol: SCP Under the Export policy, select - Format: JSON - Modify Global AES Encryption Settings: Enabled
Answer: D
Question # 2
An engineer must ensure that Cisco ACI flushes the appropriate endpoints when atopology change notification message is received in an MST domain. Which three stepsare required to accomplish this goal? (Choose three.)
A. Enable the BPDU interface controls under the spanning tree interface policy. B. Configure a new STP interface policy. C. Bind the spanning tree policy to the switch policy group. D. Associate the STP interface policy to the appropriate interface policy group. E. Create a new region policy under the spanning tree policy. F. Map VLAN range to MAT instance number.
Answer: A,B,D
Question # 3
The company’s Cisco ACI fabric hosts multiple customer tenants. To meet a service level
agreement, the company is constantly monitoring the Cisco ACI environment. Syslog is
one of the methods used for monitoring. Only events related to leaf and spine
environmental information without specific customer data should be logged. To which ACI
object must the configuration be applied to meet these requirements?
A. access policy B. infra tenant C. switch profile D. fabric policy
Answer: D
Question # 4
What must be configured to allow SNMP traffic on the APIC controller?
A. out-of-band management interface B. contract under tenant mgmt C. SNMP relay policy D. out-of-band bridge domain
Answer: B
Question # 5
An engineer is in the process of discovering a new Cisco ACI fabric consisting of twospines and four leaf switches. The discovery of leaf 1 has just been completed. Which twonodes are expected to be discovered next? (Choose two.)
A. spine 1 B. leaf 4 C. spine 2 D. leaf 3 E. leaf 2
In the context of VMM, which protocol between ACI leaf and compute hosts ensures thatthe policies are pushed to the leaf switches for immediate and on demand resolutionimmediacy?
A. VXLAN B. LLDP C. ISIS D. STP
Answer: B
Explanation:
Immediate—Specifies that EPG policies (including contracts and filters) are downloaded to
the associated leaf switch software upon ESXi host attachment to a DVS. LLDP or OpFlex
permissions are used to resolve the VM controller to leaf node attachments.
The policy will be downloaded to leaf when you add host to the VMM switch. CDP/LLDP
neighborship from host to leaf is required.
On Demand—Specifies that a policy (for example, VLAN, VXLAN bindings, contracts, or
filters) is pushed to the leaf node only when an ESXi host is attached to a DVS and a VM is
placed in the port group (EPG).
The policy will be downloaded to leaf when host is added to VMM switch and virtual
machine needs to be placed into port group (EPG). CDP/LLDP neighborship from host to
leaf is required.
With both immediate and on demand, if host and leaf lose LLDP/CDP neighborship the
An ACI engineer is implementing a Layer 3 out inside the Cisco ACI fabric that must meetthese requirements:The data center core switch must be connected to one of the leaf switches with asingle 1G link.The routes must be exchanged using a link-state routing protocol that supportshierarchical network design.The data center core switch interface must be using 802.1Q tagging, and eachvlan will be configured with a dedicated IP address.Which set of steps accomplishes these goals?
A. Set up the ElGRP Protocol policy with the selected Autonomous System number. Set upthe Routed External Network object ana Node Profile, selecting ElGRP Create the Switchprofile, selecting Port-channel and the appropriate interfaces Create the default networkand associate it with the Routed Outside object B. Set up the BGP Protocol policy with the Autonomous System number of 0. Configure an interface policy and an External Bridged Domain. Create an External Bridged Network using the configured VLAN pool. Build the Leaf profile, selecting Routed sub-interface and the appropriate VLAN. C. Configure the OSPF Protocol policy with an area of 0. Create Routed Outside object and Node Profile, selecting OSPF as the routing protocol.Build the Interface profile, selecting Routed Sub-interface and the appropriate VLAN.Configure the External Network object with a network of 0.0.0.0/0. D. Set up the ElGRP Protocol policy with the selected Autonomous System number. Createthe Routed Outside object and Node Profile selecting ElGRP Configure the Interface profileselecting Routed Interface and the appropriate interfaces. Create the External Networkobject with a network of 0.0.0.0/0.
Answer: C
Question # 8
New ESXi hosts are procured in a data center compute expansion project. An engineermust update theconfiguration on the Cisco APIC controllers to support the addition of the new servers tothe existing VMMdomain. Which action should be taken to support this change?
A. Create a range of internal VLANs in the associated VLAN pool. B. Set the encapsulation mode as VXLAN. C. Enable infrastructure VLAN in the associated AEP. D. Map the leaf interface selector to the AEP that is associated with the VMM domain.
Answer: D
Question # 9
A network engineer configures the Cisco ACI fabric to connect to vCenter with theserequirements:Port groups must be automatically created on the distributed virtual switch.Port groups must use the VLAN allocation in the range between 20-30.The deployment must optimize the CAM space on the leaf switches.Which set of actions meets these criteria?
A. Create a dynamic VLAN pool with the VLAN range of 20-30. Create a VMM domain and associate it with the VLAN pool. Create the EPG and associate the domain. Set the deployment immediacy to On Demand. B. Create a dynamic VLAN pool with the VLAN range of 20-30. Create a physical domain and associate it with the VLAN pool. Create the EPG and associate the domain. Set the deployment immediacy to On Demand C. Create a static VLAN pool with the VLAN range of 20-30. Create a physical domain and associate it with the VLAN pool. Create the EPG and associate the domain. Set the deployment immediacy to Immediate. D. Create a static VLAN pool with the VLAN range of 20-30. Create a VMM domain and associate it with the VLAN pool. Create the EPG and associate the domain. Set the deployment immediacy to Immediate.
Answer: A
Question # 10
A Cisco ACI bridge domain and VRF are configured with a default data-plane learningconfiguration. Which two endpoint attributes are programmed in the leaf switch whenreceiving traffic? (Choose two.)
A. Remote MAC. IP B. Remote Subnet C. Local IP, not MAC D. Local MAC, IP E. Local Subnet F. Remote IP
Answer: A,D
Question # 11
An engineer configures a Cisco ACI Multi-Pod for disaster recovery. Which action shouldbe taken for the new nodes to be discoverable by the existing Cisco APICs?
A. Configure IGMPv3 on the interfaces of IPN routers that face the Cisco ACI spine. B. Enable subinterfaces with dot1q tagging on all links between the IPN routers. C. Enable DHCP relay on all links that are connected to Cisco ACI spines on IPN devices. D. Configure BGP as the underlay protocol in IPN
Answer: A
Question # 12
An engineer must configure a group of servers with a contract that uses TCP port 80. TheEGP that contains the web servers requires an external Layer 3 cloud to initiatecommunication. Which action must be taken to meet these requirements?
A. Configure the EGP as a provider and L3 out as consumer of the contract. B. Configure OSPF to exchange routes between the L3 out and EGP. C. Configure a taboo contract and apply it to the EPG. D. Configure the EPG as a consumer and L3 out as a provider of the contract.
Answer: A
Question # 13
As part of a migration, legacy non-ACI switches must be connected to the Cisco ACI fabric.All non-ACI switches run per-VLAN RSTP. After the non-ACI switches are connected toCisco ACI, the STP convergence caused a microloop and significant CPU spike on allswitches. Which configuration on the interfaces of the external switches that face the CiscoACI fabric resolves the problem?
A. BPDU guard B. aggressive STP timers C. BPDU filtering D. STP type link shared
Answer: D
Question # 14
A RADIUS user resolves its role via the Cisco AV Pair. What object does the Cisco AV Pairresolve to?
A. tenant B. security domain C. primary Cisco APIC D. managed object class
An engineer is creating a configuration import policy that must terminate if the importedconfiguration is incompatible with the existing system. Which import mode achieves thisresult?
Which statement regarding ACI Multi-Pod and TEP pool is true?
A. The IP addresses used in the IPN network can overlap TEP pool of the APIC. B. A different TEP pool must be assigned to each Pod. C. The Pod1 TEP pool must be split and a portion of the TEP pool allocated to each Pod. D. The same TEP pool is used in all Pods.
A Cisco ACI environment consists of multiple silent hosts that are often relocated betweenleaf switches. When the host is relocated, the bridge domain takes more than a fewseconds to relearn the host’s new location. The requirement is to minimize the relocationimpact and make the ACI fabric relearn the new location of the host faster. Which actionmust be taken to meet these requirements?
A. Set Unicast Routing to Enabled. B. Configure ARP Flooding to Enabled. C. Set L2 Unknown Unicast to Hardware Proxy. D. Configure IP Data-Plane Learning to No.
Answer: B
Question # 18
An engineer is implementing Cisco ACI at a large platform-as-a-service provider usingAPIC controllers, 9396PX leaf switches, and 9336PQ spine switches. The leaf switch portsare configured as IEEE 802.1p ports. Where does the traffic exit from the EPG in IEEE802.1p mode in this configuration?
A. from leaf ports tagged as VLAN 0 B. from leaf ports untagged C. from leaf ports tagged as VLAN 4094 D. from leaf ports tagged as VLAN 1
Answer: A
Question # 19
What is the advantage of implementing an active-active firewall cluster that is stretchedacross separate pods when anycast services are configured?
A. A cluster is capable to be deployed in transparent mode across pods. B. A different MAC/IP configuration combination is configurable for the firewall in each pod. C. Local traffic in a pod is load-balanced between the clustered firewalls. D. The local pod anycast node is preferred by the local spines.
Answer: B
Question # 20
In-band is currently configured and used to manage the Cisco ACI fabric. The requirementis for leaf and spine switches to use out-of-band management for NTP protocol. Which action accomplishes this goal?
A. Select Out-of-Band as Management EPG in the default DateTimePolicy. B. Create an Override Policy with NTP Out-of-Band for leaf and spine switches. C. Change the interface used for APIC external connectivity to ooband. D. Add a new filter to the utilized Out-of-Band-Contract to allow NTP protocol.
A network engineer must integrate VMware vCenter cluster with Cisco ACI. Therequirement is for the management traffic of the hypervisors and VM controllers to use thevirtual switch associated with the Cisco Application Policy. The EPG called "VmwareMGMT" with VLAN 300 has been created for this purpose. Which set of steps must betaken to complete the configuration?
A. Add VLAN 300 with static allocation to the VLAN POOL that is used for VMM integration. Attach the VMM domain to the target EPG with resolution preprovision, mode static,untagged access VLAN, and Port-Encap 300. B. Associate the target EPG with the VMM domain with default settings. Enable Infrastructure VLAN on AAEP used toward VMware hypervisors. C. Enable Infrastructure VLAN on AAEP used toward VMware hypervisors. Associate the target EPG with the VMM domain with default settings. D. Enable Infrastructure VLAN on AAEP used toward VMware hypervisors. Create a static binding in the target EPG toward VMware hypervisors with VLAN 300,untagged access VLAN, and Untagged 802.1P mode
Answer: A
Question # 22
Which feature should be disabled on a bridge domain when a default gateway forendpoints is on an external device instead of a Cisco ACI bridge domain SVI?
A. unknown unicast flooding B. ARP flooding C. unicast routing D. proxy ARP
Answer: A
Question # 23
A customer is deploying a new application across two ACI pods that is sensitive to latencyand jitter. The application sets the DSCP values of packets to AF31 and CS6, respectively.Which configuration changes must be made on the APIC to support the new applicationand prevent packets from being delayed or dropped between pods?
A. disable DSCP mapping on the IPN devices B. disable DSCP translation policy C. align the ACI QoS levels and IPN QoS policies D. align the custom QoS policy on the EPG site in the customer tenant
Answer: C
Explanation: This will ensure that the Quality of Service (QoS) levels and policies within
the ACI fabric and the IPN devices match, preventing packets from being delayed or
dropped between pods. Additionally, it is important to align the DSCP values of the packets
with the configured QoS levels to ensure that the application's requirements for latency and
jitter are met.
Question # 24
Which type of profile needs to be created to deploy an access port policy group?
A. attachable entity B. Pod C. module D. leaf interface
