In NFV, what is service chaining?

A process of installing VNFs on physical servers

A protocol used to encrypt traffic between VNFs

A method of connecting VNFs in a specific order to deliver a composite network service

A technique for backing up VNF configurations

A cloud provider is deploying a service chain that includes a firewall, a load balancer, and a WAN optimizer. The provider wants to ensure that the service chain is automatically configured when a new customer subscribes. Which component is responsible for automating the service chain configuration?

The Virtualized Infrastructure Manager (VIM)

A network engineer is designing a VNF deployment for a latency-sensitive application. The engineer must choose between a VM-based VNF and a container-based VNF. Which factor is most important to consider in this decision?

Containers are always faster than VMs.

VMs provide better isolation than containers, which is more important for security.

Containers have lower overhead than VMs, which can result in lower latency.

VMs are easier to manage than containers.

A network engineer is troubleshooting a VNF that is experiencing high latency. The VNF is running on a shared host with other VMs. Which action is most likely to reduce the latency?

Moving the VNF to a different availability zone.

Dedicating CPU cores to the VNF using CPU pinning.

Disabling the VNF's management interface.

Increasing the VNF's memory allocation.

Juniper NetworksCertified Associate, Cloud

Domain 2Objective 3

Virtual Network Functions (VNFs) JN0-214 Practice Questions (Page 4)

Part of the Cloud Infrastructure (NFV and SDN) domain, which makes up ~19% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–11 in this domain), expect 1–2 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

6concepts

Questions 16–20

16foundation · easy
In NFV, what is service chaining?
Select an answer first
17application · medium
A VNF is no longer needed and must be removed from the NFVI. Which lifecycle stage is this?
Select an answer first
18expert · hard
A cloud provider is deploying a service chain that includes a firewall, a load balancer, and a WAN optimizer. The provider wants to ensure that the service chain is automatically configured when a new customer subscribes. Which component is responsible for automating the service chain configuration?
Select an answer first
19expert · hard
A network engineer is designing a VNF deployment for a latency-sensitive application. The engineer must choose between a VM-based VNF and a container-based VNF. Which factor is most important to consider in this decision?
Select an answer first
20application · medium
A network engineer is troubleshooting a VNF that is experiencing high latency. The VNF is running on a shared host with other VMs. Which action is most likely to reduce the latency?
Select an answer first

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Virtual Network Functions (VNFs) JN0-214 Practice Questions (Page 4)

Questions 16–20

In NFV, what is service chaining?

A VNF is no longer needed and must be removed from the NFVI. Which lifecycle stage is this?

A network engineer is designing a VNF deployment for a latency-sensitive application. The engineer must choose between a VM-based VNF and a container-based VNF. Which factor is most important to consider in this decision?

A network engineer is troubleshooting a VNF that is experiencing high latency. The VNF is running on a shared host with other VMs. Which action is most likely to reduce the latency?

Keep studying — Cloud Infrastructure (NFV and SDN)