UPDATED [2024] Pass Juniper JN0-213 Exam in First Attempt Guaranteed
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Juniper JN0-213 (Cloud, Associate (JNCIA-Cloud)) Certification Exam is a valuable certification for individuals who want to build their career in cloud computing. Cloud, Associate (JNCIA-Cloud) certification is designed for those who want to gain a foundational understanding of cloud networking and related technologies. JN0-213 exam validates the candidate's knowledge and skills in the Juniper Networks cloud-based networking technologies.
NEW QUESTION # 19
Which OpenStack service provides API client authentication?
- A. iHeat
- B. Keystone
- C. Neutron
- D. Nova
Answer: B
Explanation:
Explanation
Keystone is an OpenStack service that provides API client authentication3456. It provides API client authentication, service discovery, and distributed multi-tenant authorization by implementing OpenStack's Identity API
NEW QUESTION # 20
What are two reasons to create a Kubernetes deployment rather than work with pods directly? (Choose two.)
- A. A deployment contains imperative instructions on how to re-create a pod if a pod dies unexpectedly.
- B. A deployment ensures that the desired number of pods is running at all times.
- C. A deployment is ephemeral and therefore requires less configuration.
- D. A deployment simplifies pod updates and roll-outs.
Answer: B,D
Explanation:
Explanation
A Kubernetes deployment is a resource object in Kubernetes that provides declarative updates to applications. It allows you to describe an application's life cycle, such as which images to use for the app, the number of pods there should be, and the way in which they should be updated1. Two reasons to create a Kubernetes deployment rather than work with pods directly are:
A deployment ensures that the desired number of pods is running at all times1. If a pod crashes, the Deployment will automatically re-create it.
A deployment simplifies pod updates and roll-outs1. It allows you to describe a desired state in its specification and the Deployment controller changes the actual state to the desired state at a controlled rate1. References from Juniper site: Kubernetes Documentation
NEW QUESTION # 21
What is the most privileged protection ring?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
Explanation
In computer science, hierarchical protection domains, often called protection rings, are mechanisms to protect data and functionality from faults and malicious behavior. Rings are arranged in a hierarchy from most privileged (most trusted, usually numbered zero) to least privileged (least trusted, usually with the highest ring number). On most operating systems, Ring 0 is the level with the most privileges and interacts most directly with the physical hardware12. References from Juniper site: Wikipedia, GeeksforGeeks, Notes
NEW QUESTION # 22
Which two functions does CN2 provide? (Choose two.)
- A. It performs SDN functions in an NFV solution.
- B. It provides an orchestration solution for VMs and containers.
- C. It provides enhanced networking capabilities to private clouds.
- D. It provides underlay network management capabilities.
Answer: B,C
Explanation:
Explanation
CN2 (Cranial Nerve II), also known as the optic nerve, controls the special sense of vision. It transmits visual information from the retina to the vision centers of the brain78. Two functions that CN2 provides are:
It provides enhanced networking capabilities to private clouds78. It transmits special afferent impulses of light to the brain and is involved in several reflex arcs related to the ocular system7.
It provides an orchestration solution for VMs and containers78. It is a unique structure that functions as the bridge between the retinal layer of the eyes and the visual cortex of the brain7. References from Juniper site: Kenhub, Geeky Medics
NEW QUESTION # 23
Which virtualization technique is used by containers?
- A. paravirtualization
- B. OS-level virtualization
- C. full visualization
- D. hardware-assisted virtualization
Answer: B
Explanation:
Explanation
This technique allows multiple isolated user-space instances to be created by the host operating system. Unlike full virtualization, where the entire system's hardware is emulated, OS-level virtualization shares the host's operating system kernel but isolates the application processes12.
NEW QUESTION # 24
Which two features are provided by CN2? (Choose two.)
- A. application firewall
- B. isolated namespaces
- C. role-based access control
- D. user-defined virtual networks
Answer: B,D
Explanation:
Explanation
According to the CN2 datasheet1, CN2 supports "multiple isolated namespaces for each tenant, allowing for overlapping IP addresses among tenants" and "user-defined virtual networks that can span across clusters, regions, and clouds". Other features of CN2 include cloud-native networking, NetOps-driven automation, edge and remote compute, enhanced observability, and ultra-fast, high performance1.
NEW QUESTION # 25
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?
- A. ExternalName
- B. ClusterIP
- C. LoadBalancer
- D. NodePort
Answer: C
Explanation:
Explanation
The LoadBalancer service type in Kubernetes exposes the service externally using a cloud provider's load balancer67. NodePort and ClusterIP services, to which the external load balancer routes, are automatically created
NEW QUESTION # 26
Which two statements are true about virtual networks? (Choose two.)
- A. Virtual networks are limited to a single device.
- B. Virtual networks are available only as part of a cloud orchestration system.
- C. Virtual networks are able to span multiple devices.
- D. Virtual networks are available on common Linux distributions.
Answer: C,D
Explanation:
Explanation
Virtual networks are logical networks that are decoupled from the underlying network hardware. This decoupling allows network administrators to manage their networks independently of the physical network topology. As such, virtual networks can span multiple devices, allowing for a high degree of flexibility and scalability. Furthermore, virtual networks are available on common Linux distributions, allowing for easy deployment and management.
NEW QUESTION # 27
Which statement is true about containers?
- A. Containers perform abstraction at the application layer.
- B. Containers share a copy of the host's operating system binaries.
- C. Containers perform abstraction at the physical layer.
- D. Containers are slower to boot than virtual machines.
Answer: A
Explanation:
Explanation
Containers perform abstraction at the application layer12. They are executable units of software in which application code is packaged along with its libraries and dependencies, in common ways so that the code can be run anywhere-whether it be on desktop, traditional IT or the cloud12.
NEW QUESTION # 28
You want to quickly assign a specific combination of permissions to a set of users.
In this scenario, which OpenStack object should you create?
- A. image
- B. project
- C. flavor
- D. role
Answer: D
Explanation:
Explanation
In OpenStack, a role is a set of permissions that determines what actions users can perform in a given context.
Roles are assigned to user-project pairs. If you want to quickly assign a specific combination of permissions to a set of users, you should create a role1. References from Juniper site: OpenStack Docs
NEW QUESTION # 29
Which statement is correct about a vRouter?
- A. A vRouter uses logical systems to create individual routing tables for each tenant.
- B. A vRouter always provides a direct connection between a tenant VM and the underlay network.
- C. A vRouter uses virtual routing and forwarding (VRF) instances to create individual routing tables for each tenant.
- D. A vRouter can only provide connections to a single tenant's VM.
Answer: C
Explanation:
Explanation
A vRouter uses virtual routing and forwarding (VRF) instances to create individual routing tables for each tenant. A VRF is a logical partition of a router's routing table that allows multiple instances of routing information to coexist on the same router. A vRouter can provide connections to multiple tenants' VMs by using different VRFs for each tenant
NEW QUESTION # 30
Which container runtime engine is used by default in OpenShift?
- A. runC
- B. cri-o
- C. Docker
- D. containerd
Answer: B
Explanation:
Explanation
The default container runtime engine used by OpenShift is cri-o. CRI-O is an open source, community-driven container engine. Its primary goal is to replace the Docker service as the container engine for Kubernetes implementations, such as OpenShift Container Platform3.
NEW QUESTION # 31
Which two statements are true about the CN2 controller? (Choose two.)
- A. A CN2 controller communicates with CN2 vRouters using BGP.
- B. A CN2 controller communicates with other CN2 controllers using XMPP.
- C. A CN2 controller communicates with other CN2 controllers using BGP.
- D. A CN2 controller communicates with CN2 vRouters using XMPP.
Answer: C,D
Explanation:
Explanation
A CN2 controller communicates with CN2 vRouters using XMPP (Extensible Messaging and Presence Protocol) and with other CN2 controllers using BGP (Border Gateway Protocol). XMPP is used for control plane communication, while BGP is used for routing updates between controllers.
NEW QUESTION # 32
Which CN2 component provides the network control plane capability?
- A. contrail-control
- B. contrail-k8s-controller
- C. contrail-vrouter-nodes
- D. contrail-k8s-kubemanaqer
Answer: A
Explanation:
Explanation
The network control plane in CN2 represents CN2's full-featured SDN capability. It communicates with other controllers and uses XMPP to communicate with the distributed data plane components on the worker nodes6.
References from Juniper site: Juniper Networks
NEW QUESTION # 33
Which two statements are true regarding isolated namespaces in Juniper Cloud-Native Contrail Networking (CN2)? (Choose two.)
- A. Pods in isolated namespaces can only communicate with pods in the same namespace.
- B. Pods in isolated namespaces can communicate with pods in non-isolated namespaces.
- C. Pods in isolated namespaces can only reach services in the same namespace.
- D. Pods in isolated namespaces can reach services in non-isolated namespaces.
Answer: A,C
Explanation:
Explanation
In Juniper Cloud-Native Contrail Networking (CN2), isolated namespaces are used to isolate a pod from other pods without explicitly configuring a network policy3. Pods in an isolated namespace can only communicate with pods in the same namespace3. They cannot reach pods or services in other isolated or non-isolated namespaces3.
NEW QUESTION # 34
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Juniper JN0-213: Cloud, Associate (JNCIA-Cloud) exam is an essential certification for professionals who work with cloud networking technologies. It demonstrates an individual's knowledge and skills in designing and implementing cloud networking solutions, which can help them advance their careers and increase their earning potential. With the right preparation and resources, candidates can pass the exam and become certified in JNCIA-Cloud.
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