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Nuage Networks 4A0-N02 Nuage Networks Virtualized Network Services (VNS) Fundamentals Online Training

Question #1

Which of the following is a challenge facing enterprise WAN?

  • A . Manual provisioning slows down the new site turn-up.
  • B . There is no Internet access at the remote office.
  • C . OPEX is very high whereas CAPEX is low.
  • D . MPLS VPN is not supported on CPEs.

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Correct Answer: A
Question #2

Which of the following is NOT a function of Nuage Networks VNS?

  • A . Automation of the enterprise WAN
  • B . Virtualization of the branch office CPE
  • C . Orchestration of cloud networks
  • D . Providing unified policy across the data center and enterprise WAN

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Correct Answer: C
Question #3

Which of the following features is NOT supported by Nuage Networks VNS?

  • A . Service chaining
  • B . Centralized control plane
  • C . MPLS VPN
  • D . IPsec encryption

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Correct Answer: A
Question #4

Which of the following is true regarding the IPsec VPN between the NSGs?

  • A . It encrypts and encapsulates the VXLAN traffic.
  • B . The key for IPsec needs be manually configured on NSGs and must match each other.
  • C . The IPsec tunnel can be directly terminated by VRS in a data center.
  • D . To have IPsec VPN, an encryption function needs to be enabled at each individual NSG.

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Correct Answer: C
Question #5

Which of the following is true regarding the VLAN-based VPN on Nuage Networks NSG?

  • A . The NSGs use OpenFlow to exchange routing information between each other.
  • B . The NSGs use VXLAN to exchange routing information between each other.
  • C . The NSGs forward overlay traffic between each other by using an OpenFlow tunnel.
  • D . The NSGs forward overlay traffic between each other by using a VXLAN tunnel.

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Correct Answer: D
Question #6

Which of the following is false regarding overlay solutions?

  • A . An ‘overlay network’ is a virtual abstraction built on top of an existing physical network.
  • B . Both VXLAN and TRILL are host-centric overlay solutions.
  • C . Nuage Networks VNS uses a VXLAN-based overlay solution.
  • D . Overlay networks are totally transparent to their physical underlay network.

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Correct Answer: B
Question #7

Please, refer to the diagram.

If the two VMs are on the same subnet, what is MAC address X4?

  • A . X4 = MAC1
  • B . X4 = MAC4
  • C . X4 = MAC11
  • D . X4 = MAC12

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Correct Answer: B
Question #8

Which of the following is NOT true regarding the certificate authority component on VSD?

  • A . It provides secure communication (TLS) between NSGs and the VSD by an HTTPS proxy.
  • B . It provides secure communication (TLS) between NSGs and the VSC.
  • C . It provides secure communication (TLS) between NSGs and VRSs.
  • D . It provides secure communication (TLS) between the VSC and VRSs.

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Correct Answer: A
Question #9

Which component of the VNS solution belongs to the data plane?

  • A . VSD (Virtualized Services Directory)
  • B . VSC (Virtualized Services Controller)
  • C . VRS (Virtual Routing and Switching)
  • D . NSG (Network Services Gateway)

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Correct Answer: D
Question #10

Which of the following is true regarding the certificate needed for VNS deployment?

  • A . CA (Certificate Authority) runs as a service on the utility host.
  • B . CA (Certificate Authority) only generates a certificate for the VSC.
  • C . With the certificate, the communication between the VSD and VSC can be encrypted in IPsec.
  • D . With the certificate, the communication between the VSC and NSG can be encrypted in TLS.

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Correct Answer: B

Question #11

During VNS automated site activation, the domain design and attributes are configured on which of the following device?

  • A . VSD (Virtualized Services Directory)
  • B . VSC (Virtualized Services Controller)
  • C . NSG (Network Services Gateway)
  • D . Installer PC

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Correct Answer: C
Question #12

Which of the following is true about Nuage Networks NSG-E?

  • A . It is a virtual appliance.
  • B . It has 4 LAN ports at maximum.
  • C . It supports dual WAN uplinks.
  • D . It can only be deployed in standalone model.

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Correct Answer: C
Question #13

Which statement is FALSE regarding the vport?

  • A . NSG vPorts are associated with access ports.
  • B . There are four types of vPorts: VM, container, host and bridge.
  • C . The NSG’s vPorts are typically host vPorts.
  • D . One vPort can only belong to one subnet or L2 domain.

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Correct Answer: B
Question #14

Which of the following interfaces is not supported on VSC?

  • A . API interface
  • B . BGP interface
  • C . OpenFlow interface
  • D . XMPP interface

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Correct Answer: A
Question #15

Which of the following statements about an egress QoS policy is FALSE?

  • A . It assigns the child queue rate limiters to the queues.
  • B . All 8 forwarding classes must be assigned to one or more queues.
  • C . The sum of the GIR of the queues must be less than or equal to the GIR of the parent.
  • D . The sum of the PIR of the queues must be less than or equal to the PIR of the parent.

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Correct Answer: C
Question #16

Which of the following VSD service abstractions maps to a VRF instance in standard networking terminology?

  • A . Domain
  • B . Zone
  • C . Subnet
  • D . L2 domain

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Correct Answer: A
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