JN0-214 Dumps PDF – JN0-214 Real Exam Questions Answers [Q27-Q51]

Q27. Which component is directly responsible for running containers in a Kubernetes node?

kubelet

kube-proxy

container runtime

kube controller

Q28. Which CN2 component provides the network control plane capability?

contrail-k8s-kubemanaqer

contrail-vrouter-nodes

contrail-control

contrail-k8s-controller

Q29. Click the Exhibit button.

Referring to the exhibit, which port number would external users use to access the WEB application?

80

8080

31000

5000

Q30. Which cloud automation tool uses YAML playbook to install software and tools on servers?

Python

Ansible

Terraform

Heat

Cloud automation tools streamline the deployment and management of software, tools, and infrastructure in cloud environments. Let’s analyze each option:
A . Python
Incorrect: Python is a general-purpose programming language, not a cloud automation tool. While Python scripts can be used for automation, it is not specifically designed for this purpose.
B . Ansible
Correct: Ansible is a popular automation tool that uses YAML-based playbooks to define and execute tasks. It automates the installation of software, configuration management, and application deployment on servers. Ansible’s simplicity and agentless architecture make it widely adopted in cloud environments.
C . Terraform
Incorrect: Terraform is an infrastructure-as-code (IaC) tool used to provision and manage cloud infrastructure (e.g., virtual machines, networks, storage). It uses HashiCorp Configuration Language (HCL), not YAML, for defining configurations.
D . Heat
Incorrect: Heat is an orchestration tool in OpenStack that uses YAML templates to define and deploy cloud resources. While it supports YAML, it is specific to OpenStack and focuses on infrastructure provisioning rather than server-level software installation.
Why Ansible?
YAML Playbooks: Ansible uses YAML-based playbooks to define tasks, making it easy to read and write automation scripts.
Agentless Architecture: Ansible operates over SSH, eliminating the need for agents on target servers.
Versatility: Ansible can automate a wide range of tasks, from software installation to configuration management.
JNCIA Cloud Reference:
The JNCIA-Cloud certification covers automation tools as part of its cloud operations curriculum. Tools like Ansible are essential for automating repetitive tasks and ensuring consistency in cloud environments.
For example, Juniper Contrail integrates with Ansible to automate the deployment and configuration of network services, enabling efficient management of cloud resources.
Reference:
Ansible Documentation: YAML Playbooks
Juniper JNCIA-Cloud Study Guide: Automation Tools

Q31. Which two statements describe a multitenant cloud? (Choose two.)

Tenants are aware of other tenants using their shared resources.

Servers, network, and storage are separated per tenant.

The entities of each tenant are isolated from one another.

Multiple customers of a cloud vendor have access to their own dedicated hardware.

A multitenant cloud is a cloud architecture where multiple customers (tenants) share the same physical infrastructure or platform while maintaining logical isolation. Let’s analyze each statement:
A . Tenants are aware of other tenants using their shared resources.
Incorrect: In a multitenant cloud, tenants are logically isolated from one another. While they may share underlying physical resources (e.g., servers, storage), they are unaware of other tenants and cannot access their data or applications. This isolation ensures security and privacy.
B . Servers, network, and storage are separated per tenant.
Incorrect: In a multitenant cloud, resources such as servers, network, and storage are shared among tenants. The separation is logical, not physical. For example, virtualization technologies like hypervisors and software-defined networking (SDN) are used to create isolated environments for each tenant.
C . The entities of each tenant are isolated from one another.
Correct: Logical isolation is a fundamental characteristic of multitenancy. Each tenant’s data, applications, and configurations are isolated to prevent unauthorized access or interference. Technologies like virtual private clouds (VPCs) and network segmentation ensure this isolation.
D . Multiple customers of a cloud vendor have access to their own dedicated hardware.
Correct: While multitenancy typically involves shared resources, some cloud vendors offer dedicated hardware options for customers with strict compliance or performance requirements. For example, AWS offers “Dedicated Instances” or “Dedicated Hosts,” which provide dedicated physical servers for specific tenants within a multitenant environment.
JNCIA Cloud Reference:
The Juniper Networks Certified Associate – Cloud (JNCIA-Cloud) curriculum discusses multitenancy as a key feature of cloud computing. Multitenancy enables efficient resource utilization and cost savings by allowing multiple tenants to share infrastructure while maintaining isolation.
For example, Juniper Contrail supports multitenancy by providing features like VPCs, network overlays, and tenant isolation. These capabilities ensure that each tenant has a secure and independent environment within a shared infrastructure.
Reference:
NIST Cloud Computing Reference Architecture
Juniper JNCIA-Cloud Study Guide: Multitenancy

Q32. Which two statements are correct about cloud computing? (Choose two.)

Cloud computing eliminates operating expenses.

Cloud computing has the ability to scale elastically

Cloud computing increases the physical control of the data resources.

Cloud computing allows access to data any time from any location through the Internet.

Cloud computing is a model for delivering IT services where resources are provided over the internet on-demand. Let’s analyze each statement:
A . Cloud computing eliminates operating expenses.
Incorrect: While cloud computing can reduce certain operating expenses (e.g., hardware procurement, maintenance), it does not eliminate them entirely. Organizations still incur costs such as subscription fees, data transfer charges, and operational management of cloud resources. Additionally, there may be costs associated with training staff or migrating workloads to the cloud.
B . Cloud computing has the ability to scale elastically.
Correct: Elasticity is one of the key characteristics of cloud computing. It allows resources (e.g., compute, storage, networking) to scale up or down automatically based on demand. For example, during peak usage, additional virtual machines or storage can be provisioned dynamically, and when demand decreases, these resources can be scaled back. This ensures efficient resource utilization and cost optimization.
C . Cloud computing increases the physical control of the data resources.
Incorrect: Cloud computing typically reduces physical control over data resources because the infrastructure is managed by the cloud provider. For example, in public cloud models, the customer does not have direct access to the physical servers or data centers. Instead, they rely on the provider’s security and compliance measures.
D . Cloud computing allows access to data any time from any location through the Internet.
Correct: One of the core advantages of cloud computing is ubiquitous access. Users can access applications, services, and data from anywhere with an internet connection. This is particularly beneficial for remote work, collaboration, and global business operations.
JNCIA Cloud Reference:
The Juniper Networks Certified Associate – Cloud (JNCIA-Cloud) curriculum highlights the key characteristics of cloud computing, including elasticity, scalability, and ubiquitous access. These principles are foundational to understanding how cloud environments operate and how they differ from traditional on-premises solutions.
For example, Juniper Contrail, a software-defined networking (SDN) solution, leverages cloud elasticity to dynamically provision and manage network resources in response to changing demands. Similarly, the ability to access cloud resources remotely aligns with Juniper’s focus on enabling flexible and scalable cloud architectures.
Reference:
NIST Definition of Cloud Computing
Juniper JNCIA-Cloud Study Guide: Cloud Characteristics

Q33. What are two available installation methods for an OpenShift cluster? (Choose two.)

installer-provisioned infrastructure

kubeadm

user-provisioned infrastructure

kubespray

OpenShift provides multiple methods for installing and deploying clusters, depending on the level of control and automation desired. Let’s analyze each option:
A . installer-provisioned infrastructure
Correct:
Installer-provisioned infrastructure (IPI) is an automated installation method where the OpenShift installer provisions and configures the underlying infrastructure (e.g., virtual machines, networking) using cloud provider APIs or bare-metal platforms. This method simplifies deployment by handling most of the setup automatically.
B . kubeadm
Incorrect:
kubeadm is a tool used to bootstrap Kubernetes clusters manually. While it is widely used for Kubernetes installations, it is not specific to OpenShift and is not an official installation method for OpenShift clusters.
C . user-provisioned infrastructure
Correct:
User-provisioned infrastructure (UPI) is a manual installation method where users prepare and configure the infrastructure (e.g., virtual machines, load balancers, DNS) before deploying OpenShift. This method provides greater flexibility and control over the environment but requires more effort from the user.
D . kubespray
Incorrect:
Kubespray is an open-source tool used to deploy Kubernetes clusters on various infrastructures. Like kubeadm, it is not specific to OpenShift and is not an official installation method for OpenShift clusters.
Why These Methods?
Installer-Provisioned Infrastructure (IPI): Automates the entire installation process, making it ideal for users who want a quick and hassle-free deployment.
User-Provisioned Infrastructure (UPI): Allows advanced users to customize the infrastructure and tailor the deployment to their specific needs.
JNCIA Cloud Reference:
The JNCIA-Cloud certification covers OpenShift installation methods as part of its curriculum on container orchestration platforms. Understanding the differences between IPI and UPI is essential for deploying OpenShift clusters effectively.
For example, Juniper Contrail integrates with OpenShift to provide advanced networking features, regardless of whether the cluster is deployed using IPI or UPI.
Reference:
OpenShift Documentation: Installation Methods
Juniper JNCIA-Cloud Study Guide: OpenShift Deployment

Q34. You want to limit the memory, CPU, and network utilization of a set of processes running on a Linux host.
Which Linux feature would you configure in this scenario?

network namespaces

slicing

virtual routing and forwarding instances

control groups

Q35. Which Docker component builds, runs, and distributes Docker containers?

dockerd

docker registry

docker cli

container

Q36. Which cloud service model provides access to networking, storage, servers, and virtualization in a cloud environment?

Platform as a Service (PaaS)

Software as a Service (SaaS)

Infrastructure as a Service (IaaS)

Database as a Service (DaaS)

Cloud service models define how services are delivered and managed in a cloud environment. The three primary models are:
Infrastructure as a Service (IaaS): Provides virtualized computing resources such as servers, storage, networking, and virtualization over the internet. Customers manage their own operating systems, applications, and data, while the cloud provider manages the underlying infrastructure.
Platform as a Service (PaaS): Provides a platform for developers to build, deploy, and manage applications without worrying about the underlying infrastructure. Examples include Google App Engine and Microsoft Azure App Services.
Software as a Service (SaaS): Delivers fully functional applications over the internet, eliminating the need for users to install or maintain software locally. Examples include Salesforce CRM, Google Workspace, and Microsoft Office 365.
Database as a Service (DaaS): A specialized subset of PaaS that provides managed database services.
In this question, the focus is on access to networking, storage, servers, and virtualization , which are the core components of IaaS . IaaS allows customers to rent infrastructure on-demand and build their own environments without investing in physical hardware.
Why IaaS?
Flexibility: Customers have full control over the operating systems, applications, and configurations.
Scalability: Resources can be scaled up or down based on demand.
Cost Efficiency: Pay-as-you-go pricing eliminates upfront hardware costs.
JNCIA Cloud Reference:
The JNCIA-Cloud certification emphasizes understanding the different cloud service models and their use cases. IaaS is particularly relevant for organizations that want to leverage cloud infrastructure while maintaining control over their applications and data.
For example, Juniper Contrail integrates with IaaS platforms like OpenStack to provide advanced networking and security features for virtualized environments.
Reference:
NIST Cloud Computing Reference Architecture
Juniper JNCIA-Cloud Study Guide: Cloud Service Models

Q37. You are asked to run a container in a Kubernetes environment.
What should you do to accomplish this task?

Define a YAML manifest for the container and its resources.

Create a JINJA2 template for the container and its resources.

Create a WYSYG definition for the container and its resources.

Define an XML configuration for the container and its resources.

Q38. Click the Exhibit button.

Referring to the exhibit, which statement is correct?

There are no projects.

There are no services.

There are no compute nodes.

There are no virtual machines.

Q39. Your company has a Web app hosted in Kubernetes with a fluctuating number of pods.
In this scenario, which Kubernetes service type would provide equal access to all nodes using a single URL?

ExternalName

NodePort

LoadBalancer

ClusterIP

Q40. What is the most privileged protection ring?

3

2

0

1

Q41. Which two tools are used to deploy a Kubernetes environment for testing and development purposes? (Choose two.)

kind

minikube

oc

OpenStack

Q42. Which two statements are true about virtual networks? (Choose two.)

Virtual networks are available only as part of a cloud orchestration system.

Virtual networks are able to span multiple devices.

Virtual networks are limited to a single device.

Virtual networks are available on common Linux distributions.

Q43. You want to view pods with their IP addresses in OpenShift.
Which command would you use to accomplish this task?

oc get pods -o yaml

oc get pods

oc get all

oc get pods -o wide

Q44. Which OpenStack service provides API client authentication?

Keystone

Nova

Neutron

iHeat

Q45. Click the Exhibit button.

You apply the manifest file shown in the exhibit.
Which two statements are correct in this scenario? (Choose two.)

The created pods are receiving traffic on port 80.

This manifest is used to create a deployment.

This manifest is used to create a

Four pods are created as a result of applying this manifest.

Q46. Click the Exhibit button.

Referring to the exhibit, which two statements are correct? (Choose two.)

The c using a custom flavor.

The myvSRX instance is part of a default network.

The myvSRX instance is using a default image.

The myvSRX instance is currently running.

Q47. Click to the Exhibit button.

Referring to the exhibit, which two statements are correct? (Choose two.)

The myvSRX instance is using a default image.

The myvSRX instance is a part of a default network.

The myvSRX instance is created using a custom flavor.

The myvSRX instance is currently running.

The openstack server list command provides information about virtual machine (VM) instances in the OpenStack environment. Let’s analyze the exhibit and each statement:
Key Information from the Exhibit:
The output shows details about the myvSRX instance:
Status: ACTIVE (indicating the instance is running).
Networks: VN-A-10.1.0.3 (indicating the instance is part of a specific network).
Image: vSRX3 (indicating the instance was created using a custom image).
Flavor: vSRX-Flavor (indicating the instance was created using a custom flavor).
Option Analysis:
A . The myvSRX instance is using a default image.
Incorrect: The image name vSRX3 suggests that this is a custom image, not the default image provided by OpenStack.
B . The myvSRX instance is a part of a default network.
Incorrect: The network name VN-A-10.1.0.3 indicates that the instance is part of a specific network, not the default network.
C . The myvSRX instance is created using a custom flavor.
Correct: The flavor name vSRX-Flavor indicates that the instance was created using a custom flavor, which defines the CPU, RAM, and disk space properties.
D . The myvSRX instance is currently running.
Correct: The ACTIVE status confirms that the instance is currently running.
Why These Statements?
Custom Flavor: The vSRX-Flavor name clearly indicates that a custom flavor was used to define the instance’s resource allocation.
Running Instance: The ACTIVE status confirms that the instance is operational and available for use.
JNCIA Cloud Reference:
The JNCIA-Cloud certification emphasizes understanding OpenStack commands and outputs, including the openstack server list command. Recognizing how images, flavors, and statuses are represented is essential for managing VM instances effectively.
For example, Juniper Contrail integrates with OpenStack Nova to provide advanced networking features for VMs, ensuring seamless operation based on their configurations.
Reference:
OpenStack CLI Documentation: openstack server list Command
Juniper JNCIA-Cloud Study Guide: OpenStack Compute

Q48. Which two functions does CN2 provide? (Choose two.)

It performs SDN functions in an NFV solution.

It provides enhanced networking capabilities to private clouds.

It provides an orchestration solution for VMs and containers.

It provides underlay network management capabilities.

Q49. Which two Linux commands would you use to show the amount of RAM in your system? (Choose two.)

cat /proc/cpuinfo

free -h

cat /proc/meminto

df -h

Q50. Which two CPU flags indicate virtualization? (Choose two.)

lvm

vmx

xvm

kvm

Q51. You are asked to deploy a cloud solution for a customer that requires strict control over their resources and data. The deployment must allow the customer to implement and manage precise security controls to protect their data.
Which cloud deployment model should be used in this situation?

private cloud

hybrid cloud

dynamic cloud

public cloud

Cloud deployment models define how cloud resources are provisioned and managed. The four main models are:
Public Cloud: Resources are shared among multiple organizations and managed by a third-party provider. Examples include AWS, Microsoft Azure, and Google Cloud Platform.
Private Cloud: Resources are dedicated to a single organization and can be hosted on-premises or by a third-party provider. Private clouds offer greater control over security, compliance, and resource allocation.
Hybrid Cloud: Combines public and private clouds, allowing data and applications to move between them. This model provides flexibility and optimization of resources.
Dynamic Cloud: Not a standard cloud deployment model. It may refer to the dynamic scaling capabilities of cloud environments but is not a recognized category.
In this scenario, the customer requires strict control over their resources and data, as well as the ability to implement and manage precise security controls. A private cloud is the most suitable deployment model because:
Dedicated Resources: The infrastructure is exclusively used by the organization, ensuring isolation and control.
Customizable Security: The organization can implement its own security policies, encryption mechanisms, and compliance standards.
On-Premises Option: If hosted internally, the organization retains full physical control over the data center and hardware.
Why Not Other Options?
Public Cloud: Shared infrastructure means less control over security and compliance. While public clouds offer robust security features, they may not meet the strict requirements of the customer.
Hybrid Cloud: While hybrid clouds combine the benefits of public and private clouds, they introduce complexity and may not provide the level of control the customer desires.
Dynamic Cloud: Not a valid deployment model.
JNCIA Cloud Reference:
The JNCIA-Cloud certification covers cloud deployment models and their use cases. Private clouds are highlighted as ideal for organizations with stringent security and compliance requirements, such as financial institutions, healthcare providers, and government agencies.
For example, Juniper Contrail supports private cloud deployments by providing advanced networking and security features, enabling organizations to build and manage secure, isolated cloud environments.
Reference:
Juniper JNCIA-Cloud Study Guide: Cloud Deployment Models
NIST Cloud Computing Reference Architecture

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