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| Section | Objectives |
|---|---|
| Container Virtualization | - Container lifecycle management
|
| Container Orchestration | - Kubernetes fundamentals
|
| Virtualization Concepts and Implementation | - Hypervisors and architectures
|
| Storage, Networking, and Security | - Networking
|
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NEW QUESTION # 100
Which of the following values are valid in thefirmwareattribute of a<os>element in a libvirt domain definition?(Choose two.)
Answer: C,E
Explanation:
The firmware attribute of the <os> element in a libvirt domain definition specifies the type of firmware used to boot the virtual machine. The valid values for this attribute are efi and bios, which correspond to the Extensible Firmware Interface (EFI) and the Basic Input/Output System (BIOS) respectively. EFI is a newer standard that supports more features and security than BIOS, such as Secure Boot and faster boot times. BIOS is an older standard that is widely compatible and supported by most hypervisors and operating systems. The other values, scsi, virtio, and pcie, are not related to firmware, but to different types of devices or drivers that can be used in a virtual machine. References: 1 (search for firmware enum)
NEW QUESTION # 101
Which of the following statements are true regarding a Pod in Kubernetes? (Choose two.)
Answer: B,C
Explanation:
Explanation
A Pod in Kubernetes is a collection of one or more containers that share the same network and storage resources, and a specification for how to run the containers. A Pod is the smallest unit of workload Kubernetes can run, meaning that it cannot be divided into smaller units. Therefore, option C is correct. All containers of a Pod run on the same node, which is the smallest unit of computing hardware in Kubernetes. A node is a physical or virtual machine that hosts one or more Pods. Therefore, option A is also correct. Pods are not always created automatically and cannot be explicitly configured. Pods can be created manually using YAML or JSON files, or using commands like kubectl run or kubectl create. Pods can also be created automatically by higher-level controllers, such as Deployment, ReplicaSet, or StatefulSet. Therefore, option B is incorrect.
When a Pod fails, Kubernetes does not restart the Pod on another node by default. Pods are ephemeral by nature, meaning that they can be terminated or deleted at any time. If a Pod is managed by a controller, the controller will create a new Pod to replace the failed one, but it may not be on the same node. Therefore, option D is incorrect. systemd is not used to manage individual Pods on the Kubernetes nodes. systemd is a system and service manager for Linux operating systems that can start and stop services, such as docker or kubelet. However, systemd does not interact with Podsdirectly. Pods are managed by the kubelet service, which is an agent that runs on each node and communicates with the Kubernetes control plane. Therefore, option E is incorrect. References:
* Pods | Kubernetes
* What is a Kubernetes pod? - Red Hat
* What's the difference between a pod, a cluster, and a container?
* What are Kubernetes Pods? | VMware Glossary
* Kubernetes Node Vs. Pod Vs.Cluster: Key Differences - CloudZero
NEW QUESTION # 102
Which cloud management tools are known for their infrastructure-as-code (IaC) approach? (Select all that apply)
Answer: A,B,C,D
Explanation:
Infrastructure as Code (IaC) is an approach where infrastructure is defined and managed usingmachine- readable configuration files. According to DevOps and cloud documentation,Puppet, Terraform, AWS CloudFormation, and Ansibleall support IaC principles.
Terraform and AWS CloudFormation are declarative IaC tools used to provision cloud infrastructure. Puppet and Ansible are configuration management and automation tools that also enable infrastructure definition through code.
All listed tools are widely recognized in IaC workflows, makingA, B, C, and Dcorrect.
NEW QUESTION # 103
When setting up a KVM virtualization host, which one of the following components is NOT required?
Answer: E
Explanation:
When configuring a KVM-based virtualization host, several core components are mandatory to enable and manage virtual machines. According to KVM and virtualization documentation,KVM kernel modulesare essential because they provide hardware-assisted virtualization support within the Linux kernel.QEMUis required to perform hardware emulation and manage virtual machine execution.Libvirtacts as the virtualization management API, enabling centralized and secure control of virtual machines. Additionally, bridgeutilsis commonly required to configure network bridges, allowing virtual machines to communicate with external networks.
However,virshisnot strictly required. Virsh is acommand-line utilitythat interacts with libvirt to manage virtual machines, but it is only amanagement interface, not a core dependency. Virtual machines can still be created and managed using alternative tools such asvirt-manager, Ansible, OpenStack, or custom API- based solutionswithout virsh being installed.
Virtualization documentation clearly distinguishes betweenessential backend components(KVM, QEMU, libvirt) andoptional management tools(virsh). Therefore, while virsh is widely used and highly recommended for administrative convenience, it isnot a mandatory componentfor a functional KVM virtualization host.
NEW QUESTION # 104
What is Packer?
Answer: D
Explanation:
Packer is animage automation and building tooldeveloped by HashiCorp. According to virtualization and DevOps documentation, Packer is used to createmachine imagesfor multiple platforms from a single configuration file.
Packer is not an orchestration platform, configuration management tool, or hypervisor. Its primary role is to ensureconsistent, repeatable, and automated image creation, makingBthe correct answer.
NEW QUESTION # 105
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