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Nokia 4A0-M05 - Questions & Answers

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Question 1
Single choice

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)

Question 2
Single choice

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

Question 3
Single choice

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

Question 4
Single choice

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

Question 5
Single choice

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.

Question 6
Single choice

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.

Question 7
Single choice

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.

Question 8
Single choice

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.

Question 9
Single choice

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.

Question 10
Single choice

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

A.

Neutron

B.

Nova

C.

Keystone

D.

Horizon

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