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| Certification Vendor: | Linux Professional Institute (LPI) |
|---|---|
| Exam Name: | LPIC-3 Exam 305: Virtualization and Containerization |
| Exam Number: | 305-300 |
| Exam Duration: | 90 minutes |
| Available Languages: | English, Japanese |
| Certificate Validity Period: | 5 years |
| Exam Format: | Multiple choice, Fill-in-the-blank |
| Passing Score: | 500 (scaled score, range 200-800) |
| Related Certifications: | LPIC-3 High Availability and Storage Clusters LPIC-2 LPIC-3 Security LPIC-3 Mixed Environments |
| Exam Price: | $200 USD |
| Real Exam Qty: | 60 |
| Recommended Training: | LPI Official Training Resources |
| Exam Registration: | LPI Official Registration Pearson VUE |
| Sample Questions: | Lpi 305-300 Sample Questions |
| Exam Way: | Online proctored (OnVUE) or at Pearson VUE test centers |
| Pre Condition: | Must hold an active LPIC-2 certification |
| Official Syllabus URL: | https://www.lpi.org/our-certifications/exam-305-objectives/ |
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The LPIC-3 Exam 305 covers a wide range of topics related to virtualization and containerization, including the concepts and technologies of virtualization, the configuration and management of virtualized systems, and the deployment and management of containerized applications. Candidates will be tested on their knowledge of various virtualization technologies such as KVM, Xen, and VirtualBox, as well as containerization technologies such as Docker and Kubernetes. They will also be required to demonstrate their understanding of the security and performance considerations involved in virtualization and containerization.
The LPIC-3 Exam 305: Virtualization and Containerization certification exam is a multiple-choice exam that consists of 60 questions. 305-300 Exam is conducted in a proctored environment and requires the candidate to demonstrate their knowledge and skills in virtualization and containerization technologies. The passing score for the exam is 500 out of 800.
NEW QUESTION # 112
After creating a new Docker network using the following command:
docker network create --driver bridge isolated_nw
which parameter must be added todocker createin order to attach a container to the network?
Answer: A
Explanation:
To attach a container to a network when creating it, the --network flag must be used with the name of the network as the argument. The --network flag specifies the network mode for the container. By default, the network mode is bridge, which means the container is connected to the default bridge network. However, if a custom network is created, such as isolated_nw in this case, the container must be explicitly attached to it using the --network flag. For example, to create a container named web1 and attach it to the isolated_nw network, the command would be:
docker create --name web1 --network isolated_nw nginx
The other options are not valid parameters for docker create. The --eth0, --ethernet, and --attach flags do not exist. The --alias flag is used to specify an additional network alias for the container on a user-defined network, but it does not attach the container to the network. References:
* docker network create | Docker Documentation1
* docker create | Docker Documentation
* Networking overview | Docker Docs2
NEW QUESTION # 113
Which CPU flag indicates the hardware virtualization capability on an AMD CPU?
Answer: A
Explanation:
Explanation
The CPU flag that indicates the hardware virtualization capability on an AMD CPU is SVM. SVM stands for Secure Virtual Machine, and it is a feature of AMD processors that enables the CPU to run virtual machines with hardware assistance. SVM is also known as AMD-V, which is AMD's brand name for its virtualization technology. SVM allows the CPU to support a hypervisor, which is a software layer that creates and manages virtual machines. A hypervisor can run multiple virtual machines on a single physical machine, each with its own operating system and applications. SVM improves the performance and security of virtual machines by allowing the CPU to directly execute privileged instructions and handle memory access, instead of relying on software emulation or binary translation. SVM also provides nested virtualization, which is the ability to run avirtual machine inside another virtual machine. To use SVM, the CPU must support it and the BIOS must enable it. The user can check if the CPU supports SVM by looking for the svm flag in the /proc/cpuinfo file or by using the lscpu command. The user can also use the virt-host-validate command to verify if the CPU and the BIOS are properly configured for hardware virtualization123. References:
* How to check if CPU supports hardware virtualization (VT technology)1
* Processor support - KVM3
* How to Enable Virtualization in BIOS for Intel and AMD4
NEW QUESTION # 114
Which of the following values are valid in thefirmwareattribute of a<os>element in a libvirt domain definition?(Choose two.)
Answer: A,B
Explanation:
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 # 115
Which of the following commands executes a command in a running LXC container?
Answer: A
Explanation:
The command lxc-attach is used to execute a command in a running LXC container. It allows the user to start a process inside the container and attach to its standard input, output, and error streams1. For example, the command lxc-attach -n mycontainer -- ls -lh /home will list all the files and directories in the /home directory of the container named mycontainer1. The other options are not valid LXC commands. The command lxc- batch does not exist. The command lxc-run is an alias for lxc-start, which is used to start a container, not to execute a command in it2. The command lxc-enter is also an alias for lxc-attach, but it is deprecated and should not be used3. The command lxc-eval is also not a valid LXC command. References:
* 1: Executing a command inside a running LXC - Unix & Linux Stack Exchange.
* 2: lxc-start: start a container. - SysTutorials.
* 3: lxc-attach: start a process inside a running container. - SysTutorials.
NEW QUESTION # 116
Which of the following statements are true regarding hardware-based virtualization? (Choose TWO correct answers.)
Answer: C,D
Explanation:
Hardware-based virtualization usesCPU-assisted virtualization featuresto improve performance and isolation when running virtual machines. According to virtualization documentation, modern processors such asIntel VT-xandAMD-Vprovide special CPU instructions that allow the processor totrap and transfer control to the hypervisorwhen sensitive or privileged instructions are executed by a guest virtual machine.
This behavior makes statementAcorrect.
Additionally, hardware-based virtualizationrequires explicit CPU and chipset support, which is now standard in most modern x86-based systems. These hardware extensions reduce the need for complex software emulation and enable near-native performance for virtual machines. Therefore, statementCis also correct.
StatementBdescribes full software emulation rather than hardware-assisted virtualization and is incorrect in this context. StatementDis false because hardware-based virtualization is widely available and heavily used on x86 architectures in enterprise, cloud, and desktop environments.
Virtualization notes consistently highlight that hardware-based virtualization is the foundation for platforms such asKVM, Xen, VMware ESXi, and Hyper-V, making it a critical technology in modern computing.
Thus, the correct answers areA and C.
NEW QUESTION # 117
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