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Nokia 4A0-M05 Nokia Cloud Packet Core Online Training

Question #1

Which of the following management tools performs the function of virtual infrastructure manager (VIM) in the CPC NFV architecture?

  • A . NetAct
  • B . CloudBand Infrastructure Software (CBIS)
  • C . Operations Support System (OSS)
  • D . Network Service Platform (NSP)

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Correct Answer: B
Question #2

Which of the following statements about the network service platform (NSP) is FALSE?

  • A . Acts as an element management system (EMS) for CPC components
  • B . Performs fault, performance, and security management
  • C . Has a northbound interface with the NFV orchestrator (NFVO)
  • D . Allows monitoring events associated with the NFV environment

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Correct Answer: C
Question #3

Which of the following network elements is implemented by the Nokia CPC?

  • A . Policy and charging rules function (PCRF)
  • B . Equipment Identity Registration (EIR)
  • C . Application Function (AF)
  • D . eNodeB

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Correct Answer: A
Question #4

What is the main benefit of splitting the core network into separate user-plane and control-plane nodes?

  • A . Independent configuration of user-plane and control-plane nodes
  • B . Independent scaling of user-plane and control-plane nodes
  • C . User of a shared data repository for storing user states.
  • D . Creation of networks with isolated properties over a common infrastructure

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Correct Answer: B
Question #5

Which of the following statements about SR-IOV is FALSE?

  • A . VMs using OVS and SR-IOV can be instantiated on the same compute node.
  • B . SR-IOV offers comparable performance to non-visualized hardware.
  • C . The VM must be attached to the PF to achieve highest performance.
  • D . Using SR-IOV restricts VM mobility.

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Correct Answer: D
Question #6

Which of the following best describes the reason for CPU pinning?

  • A . To ensure that a VM is assigned to high performance CPU cores.
  • B . To ensure that a VM’s CPU cores area all allocated on the same NUMA node.
  • C . To ensure that a VM is assigned to a compute node with adequate resources.
  • D . To ensure that a VM is assigned a sufficient number of CPU cores.

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Correct Answer: A
Question #7

Which of the following describes the benefit of using huge pages?

  • A . Huge pages improves the performance of mapping virtual memory addresses to physical memory addresses.
  • B . Huge pages improves the performance of decreasing the number of memory accesses involved in a page table walk.
  • C . Huge pages improves the performance of page swapping by increasing the number of TLB cache hits.
  • D . Huge pages improves the performance of page swapping by optimizing the loading of pages to main memory.

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Correct Answer: C
Question #8

Which of the following describes the 2N model for VM redundancy?

  • A . There is one active VM and one standby VM that takes over if the active VM fails.
  • B . Thera are N active VMs and a pool of standby VMs that can take over if one or more active VMs fail.
  • C . There are N active VMs, each one paired with a standby VM that takes over if its active VM fails.
  • D . There are 2N active VMs deployed to support a service that needs N active VMs, with extra capacity in case one or more VMs fail.

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Correct Answer: C
Question #9

Which of the following statements about interface redundancy with OVS is FALSE?

  • A . OVS provides redundancy through a Linux bonded interface on the hypervisor.
  • B . Guest VMs have two virtual NICs connected to OVS through a Linux bridge.
  • C . Ethernet frames are sent between the redundant interfaces to verify connectivity.
  • D . OVS connects to two physical ports connected to distinct leaf switches.

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Correct Answer: C
Question #10

Which of the following OpenStack projects provides networking services to VMs?

  • A . Neutron
  • B . Nova
  • C . Keystone
  • D . Horizon

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Correct Answer: A

Question #11

Which of the following provides the virtual hardware environment for the guest OS on a Linux system?

  • A . libvirt
  • B . QEMU
  • C . virsh
  • D . ESXi

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Correct Answer: B
Question #12

Which of the following best describes the function of CBAM in the Nokia CPC?

  • A . Provides the EMS function for element management of individual CPC components.
  • B . Provides the NFVO function to support the definition and management of end-to-end services.
  • C . Provides the VNFM function to manage the life cycle of VNFs including deployment and scaling.
  • D . Provides the VIM function to manage the compute and network resources required by VNFs.

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Correct Answer: C
Question #13

Which of the following Nokia products is used to perform lifecycle management operations on CMM?

  • A . CloudBand infrastructure software (CBIS)
  • B . CloudBand application manager (CBAM)
  • C . CloudBand network director (CBND)
  • D . Network services platform (NSP)

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Correct Answer: B
Question #14

Which of the following lifecycle management operations is NOT supported by CMM?

  • A . Healing of all CMM VMs
  • B . Scale out of CPPS, PAPS, and IPPS VMs
  • C . Scale in of NECC and IPDS VMs
  • D . Instantiation of all CMM VMs

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Correct Answer: C
Question #15

Which of the following statements regarding CMM scaling is TRUE?

  • A . DBS VMs can scale out in steps of a single VM.
  • B . NECC VMs can scale out in steps of a single VM.
  • C . CPPS VMs can scale out in steps of a single VM.
  • D . IPDS VMs can scale out in steps of a single VM.

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Correct Answer: C
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