Cisco® 400-151 Exam Practice Questions (P. 3)
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Question #21
Which two statements about CFS are true? (Choose two.)
- ACFS distributes the local NTP configuration to masteronly which then forwards to all devices in network.
- BAfter enabling CFS, a network-wide lock is applied to NTP whenever an NTP configuration is started and released once after the change has been committed or discarded.
- CIf CFS is used to distribute NTP, all devices in the network must have the different VRFs configured then as used for NTP.
- DYou must manually distribute NTP authentication keys on the NTP server and Cisco NX-OS devices across the network.
- ECFS requires a license to be installed before it can be used to distribute NTP.
Correct Answer:
BD
Cisco Fabric Services (CFS) distributes the local NTP configuration to all Cisco devices in the network. After enabling CFS on your device, a network-wide lock is applied to NTP whenever an NTP configuration is started. After making the NTP configuration changes, you can discard or commit them. In either case, the CFS lock is then released from the NTP application.
References:
BD
Cisco Fabric Services (CFS) distributes the local NTP configuration to all Cisco devices in the network. After enabling CFS on your device, a network-wide lock is applied to NTP whenever an NTP configuration is started. After making the NTP configuration changes, you can discard or commit them. In either case, the CFS lock is then released from the NTP application.
References:
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Question #22
DRAG DROP -
Drag and drop the feature from the lest onto the correct description on the right.
Select and Place:

Drag and drop the feature from the lest onto the correct description on the right.
Select and Place:

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Question #23
Which three limitations or requirements do MP-BGP-based EVPN addresses have compared to the initial IETF VXLAN standard (RFC 7348)? (Choose three.)
- Arequirement to disable multicast for underlay forwarding
- Bnetwork flooding through protocol-based host MAC/IP route distribution and ARP suppression on the local VTEPs
- Cactive-passive multihoming at Layer 2
- Dscalability limitations due to data-driven flood-and-learn behavior
- Econtrol-plane learning of end-host Layer 2 and Layer 3 reachability information, which provides integrated bridging and routing in VXLAN overlay networks.
Correct Answer:
BDE
BDE
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Question #24

Refer to the exhibit. When specifying subnets under a bridge domain for a given tenant, the user can specify the scope of a subnet. Which definition of the public subnet scope is true?
- AIt indicates that this subnet is advertised to the external router by the border leaf.
- BIt indicates that this subnet is advertised to the border leaf in ACI fabric.
- CIt indicates that it must be leaked to one or more private networks within ACI fabric.
- DIt indicates that this subnet is advertised to public Internet and must be protected by a firewall.
Correct Answer:
A
A
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Question #25
Which two statements about policing, queueing, and scheduling are true? (Choose two.)
- AThe WRED algorithm is reactive approach only to a traffic congestion.
- BPolicing is the monitoring of data rates for a particular class of traffic. The device can also monitor associated sizes.
- CYou can apply weighted random early detection to a class of traffic, which allows packets to be dropped based on the CoS field.
- DYou can schedule traffic by imposing a maximum data rate on a class of traffic, so that excess packets are dropped.
Correct Answer:
BC
BC
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Question #26
Which three PVLAN port modes are supported on Cisco Nexus 9000? (Choose three.)
- AFEX port
- Bport channels
- Ccommunity host
- Disolated host trunk
- Eisolated host
- Fvirtual port channels
Correct Answer:
CDE
CDE
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Question #27
After VTEP devices have established BGP neighbor adjacencies with other VTEPs or with Internal BGP route reflectors, which three pieces of information are exchanged through BGP? (Choose three.)
- AVTEP address
- BVTEP peer list
- CVPNv4 prefixes
- Drouter MAC address
- ELayer 3 VNI
Correct Answer:
ADE
ADE
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Question #28
While doing service insertion with vAsA with route peering, which two parts must be configured? (Choose two.)
- AThe chassis must be specified when the L4-L7 device is created.
- BThe path for interfaces must be specified when the L4-L7 device is created.
- CThe VM name must be specified when the L4-L7 device is created.
- DThe route peering profile must be specified when the L4-L7 Service Graph template is created
Correct Answer:
BD
BD
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Question #29
Which definition of Intelligent Service Card Manager is true?
- Amanagement software to manageprovisioning of RISE services on a Cisco Nexus switch
- Bpart of the RISE service that is responsible for establishing initial connectivity with remote appliance (for example, Citrix NetScaler)
- Cpart of the RISE service that resides on a Cisco Nexus switch that is responsible for handling tasks related to receiving Route Health Injection messages from appliance and programming those routes in the universal routing information base
- Dpart of the RISE service that resides on an appliance (for example, Citrix Netscaler) that is responsible for sending Route Health Injection
- Emanagement software to manage Cisco Nexus devices
Correct Answer:
C
C
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Question #30

Refer to the exhibit. The L4-L7 Services were configured in the APIC, but you see this fault under Service Graph. Which actions is the best way to resolve the problem?
- AThis is a configuration issue. Make sure that unicast routing is enabled on the bridge domain that is associated with the interfaces that are connected to the Citrix load balancer.
- BReset the NetScaler load balancer.
- CReimport the device package.
- DDelete the service graph and create it again.
Correct Answer:
A
A
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