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NEW QUESTION # 36
You just uploaded a qcow2 image of a vSRX virtual machine in OpenStack.
In this scenario, which service stores the virtual machine (VM) image?
- A. Ironic
- B. Glance
- C. Neutron
- D. Nova
Answer: B
Explanation:
The service that stores the virtual machine (VM) image in OpenStack is Glance. Glance is the image service in OpenStack that allows you to discover, register, retrieve, and store virtual machine images.
NEW QUESTION # 37
What is an OpenShift route?
- A. It allows pods to communicate across namespaces.
- B. It provisions external access to a service.
- C. It provisions endpoints for a service.
- D. It allows pods to communicate across clusters.
Answer: B
Explanation:
An OpenShift route is a way to provision external access to a service. A route exposes a service at a host name, such as www.example.com, that external clients can use to access the service. A route can also specify security options, such as TLS termination, and load balancing options, such as round robin or least connection.
NEW QUESTION # 38
Which two statements are correct about an overlay network? (Choose two.)
- A. The overlay network is the virtual network used to connect multiple virtual machines (VMs).
- B. The overlay network is built using encapsulation tunnels.
- C. The overlay network provides physical connectivity between devices.
- D. The overlay network can only be built using a Layer 3 underlay network.
Answer: A,B
Explanation:
An overlay network is a virtual network that is built on top of another network. Nodes in the overlay network are connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. For example, distributed systems such as peer-to-peer networks and client-server applications often overlay their own network connections over the physical network connections provided by the Internet.
NEW QUESTION # 39
Which two tools are used to deploy a Kubernetes environment for testing and development purposes? (Choose two.)
- A. kind
- B. oc
- C. minikube
- D. OpenStack
Answer: A,C
Explanation:
Minikube and kind are two tools that are commonly used to deploy a Kubernetes environment for testing and development purposes.
NEW QUESTION # 40
Which two statements are correct about Kubernetes resources? (Choose two.)
- A. NodePort service exposes the service externally by using a cloud provider load balancer.
- B. A ClusterIP type service can only be accessed within a Kubernetes cluster.
- C. A deploymentConfig is a Kubernetes resource.
- D. A daemonSet ensures that a replica of a pod is running on all nodes.
Answer: B,D
Explanation:
A daemonSet in Kubernetes ensures that a replica of a pod is running on all nodes. A ClusterIP type service can only be accessed within a Kubernetes cluster.
NEW QUESTION # 41
What are two Kubernetes objects? (Choose two.)
- A. pod
- B. cluster
- C. namespace
- D. service
Answer: A,D
Explanation:
In Kubernetes, a Pod is the smallest and simplest unit in the Kubernetes object model that you create or deploy. A Pod represents processes running on your cluster. A Service in Kubernetes is an abstraction which defines a logical set of Pods and a policy by which to access them.
NEW QUESTION # 42
Which two statements about Kubernetes are correct? (Choose two.)
- A. All containers within a pod share the same IP address.
- B. A ClusterlP service exposes pods to internal and external traffic.
- C. A ClusterlP service exposes pods to internal traffic only.
- D. Each container within a pod has a unique IP address.
Answer: A,C
Explanation:
In Kubernetes, all containers within a pod share the same IP address. A ClusterIP service exposes pods to internal traffic only.
NEW QUESTION # 43
Which OpenStack service provides API client authentication?
- A. Neutron
- B. iHeat
- C. Keystone
- D. Nova
Answer: C
Explanation:
Keystone is an OpenStack service that provides API client authentication. It provides API client authentication, service discovery, and distributed multi-tenant authorization by implementing OpenStack's Identity API.
NEW QUESTION # 44
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:
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 brain. Two functions that CN2 provides are:
It provides enhanced networking capabilities to private clouds. It transmits special afferent impulses of light to the brain and is involved in several reflex arcs related to the ocular system.
It provides an orchestration solution for VMs and containers. It is a unique structure that functions as the bridge between the retinal layer of the eyes and the visual cortex of the brain.
NEW QUESTION # 45
Click the Exhibit button.
You apply the manifest file shown in the exhibit.
Which two statements are correct in this scenario? (Choose two.)
- A. The created pods are receiving traffic on port 80.
- B. Four pods are created as a result of applying this manifest.
- C. This manifest is used to create a
- D. This manifest is used to create a deployment.
Answer: B,D
Explanation:
This manifest is used to create a deployment, which is a Kubernetes resource that manages a set of pods with the same configuration. A deployment can also provide declarative updates, scaling, and rolling back for the pods. The created pods are not receiving traffic on port 80, because the manifest does not specify a service or a selector for the deployment. A service is another Kubernetes resource that defines a logical set of pods and a policy to access them. A selector is a label query that matches the pods that belong to the service. Four pods are created as a result of applying this manifest, because the manifest specifies replicas: 4 in the spec section of the deployment.
NEW QUESTION # 46
You are deploying CN2 using Kubernetes as your orchestrator.
In this scenario, which component contains the vRouter agent?
- A. kube-manager
- B. Contrail controller
- C. Ikube-scheduler
- D. worker node
Answer: D
Explanation:
In a CN2 deployment using Kubernetes as the orchestrator, the vRouter agent is contained in the worker node. The vRouter agent is responsible for managing the forwarding plane on each node in a Contrail cluster. It interacts with the kernel to manage the services and interfaces within the virtual networks.
NEW QUESTION # 47
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. project
- B. image
- C. role
- D. flavor
Answer: C
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 role.
NEW QUESTION # 48
Which two features are provided by CN2? (Choose two.)
- A. role-based access control
- B. application firewall
- C. user-defined virtual networks
- D. isolated namespaces
Answer: C,D
Explanation:
According to the CN2 datasheet, 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 performance.
NEW QUESTION # 49
Which two statements are correct about OpenStack networks? (Choose two.)
- A. It is not possible to add host routes in the DHCP settings in an OpenStack network.
- B. It is possible to enable DHCP for a subnet in an OpenStack network.
- C. It is possible to share networks with other projects in an OpenStack network.
- D. It is not possible to specify a subnet address in an OpenStack network.
Answer: B,C
Explanation:
In OpenStack networks, it is possible to share networks with other projects. Also, it is possible to enable DHCP for a subnet in an OpenStack network.
NEW QUESTION # 50
Which two tools are used to deploy a Kubernetes environment for testing and development purposes? (Choose two.)
- A. kind
- B. oc
- C. minikube
- D. OpenStack
Answer: A,C
Explanation:
Minikube and kind are two tools that are commonly used to deploy a Kubernetes environment for testing and development purposes.
NEW QUESTION # 51
Which cloud automation tool uses YAML playbooks to install software and tools on servers?
- A. Ansible
- B. Terraform
- C. Python
- D. Heat
Answer: A
Explanation:
According to the Ansible documentation4, Ansible playbooks are "automation blueprints, in YAML format, that Ansible uses to deploy and configure nodes in an inventory". Other cloud automation tools that are mentioned in the question are Terraform, which uses HCL (HashiCorp Configuration Language) or JSON files to provision infrastructure resources; Python, which is a general-purpose programming language that can be used for various automation tasks; and Heat, which is an orchestration service for OpenStack that uses HOT (Heat Orchestration Template) or CFN (AWS CloudFormation) formats to describe stacks of cloud resources.
NEW QUESTION # 52
The openstack user list command uses which OpenStack service?
- A. Neutron
- B. Keystone
- C. Nova
- D. Cinder
Answer: B
Explanation:
The openstack user list command uses the Keystone service, which is the identity service for OpenStack. Keystone provides authentication, authorization, and service discovery for OpenStack. It also manages projects, users, roles, and endpoints for the OpenStack services.
NEW QUESTION # 53
Click the Exhibit button.
Referring to the exhibit, what does port: 8080 represent?
- A. It is the port on which the webapp pod is listening.
- B. It is the port that is exposed to clients that are internal to the cluster.
- C. It is the port that is exposed to clients that are external to the cluster.
- D. It is the port that is used by the external load balancer.
Answer: B
Explanation:
In the context of a Kubernetes service, port: 8080 represents the port that is exposed to clients that are internal to the cluster. This is the stable port the Service exposes inside the cluster -- other Pods in the cluster send traffic to this port.
NEW QUESTION # 54
Which two statements are true regarding isolated namespaces in Juniper Cloud-Native Contrail Networking (CN2)? (Choose two.)
- A. Pods in isolated namespaces can reach services in non-isolated namespaces.
- B. Pods in isolated namespaces can only reach services in the same namespace.
- C. Pods in isolated namespaces can communicate with pods in non-isolated namespaces.
- D. Pods in isolated namespaces can only communicate with pods in the same namespace.
Answer: B,D
Explanation:
In Juniper Cloud-Native Contrail Networking (CN2), isolated namespaces are used to isolate a pod from other pods without explicitly configuring a network policy. Pods in an isolated namespace can only communicate with pods in the same namespace. They cannot reach pods or services in other isolated or non-isolated namespaces.
NEW QUESTION # 55
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