LPI LPIC-3 (305-300) Certification Sample Questions
The purpose of this Sample Question Set is to provide you with information about the LPI Virtualization and Containerization exam. These sample questions will make you very familiar with both the type and the difficulty level of the questions on the 305-300 certification test. To get familiar with real exam environment, we suggest you try our Sample LPI LPIC-3 Certification Practice Exam. This sample practice exam gives you the feeling of reality and is a clue to the questions asked in the actual LPIC-3 Virtualization and Containerization certification exam.
These sample questions are simple and basic questions that represent likeness to the real LPI 305-300 exam questions. To assess your readiness and performance with real time scenario based questions, we suggest you prepare with our Premium LPI LPIC-3 Certification Practice Exam. When you solve real time scenario based questions practically, you come across many difficulties that give you an opportunity to improve.
LPI 305-300 Sample Questions:
01. A vendor ships an appliance as an OVA file for import into several hypervisors. Which statement about the Open Virtualization Format (OVF) is true?
a) OVF is a disk image format that, like qcow2, stores guest blocks together with internal snapshots
b) An OVF descriptor stores the running guest's memory state, so that it resumes on the target host
c) OVF is a proprietary VMware format that only VMware products can import or export
d) An XML descriptor defines the VM's hardware and disks; an OVA is one tar of the package
02. An image was built locally as inventory:2.1. It must be stored in the private registry registry.example.com:5000, and the administrator has already run docker login registry.example.com:5000 successfully.
How is the image uploaded to that registry?
a) Run docker push inventory:2.1, since the login made that registry the default
b) Run docker tag inventory:2.1 inventory:registry.example.com:5000, then push the new name
c) Tag it as registry.example.com:5000/inventory:2.1, then push the image under that name
d) Pipe docker save inventory:2.1 into docker push registry.example.com:5000
03. QEMU refuses to start a guest launched with this command line:
qemu-system-x86_64 -enable-kvm -m 2048 -drive file=vm1.qcow2,if=virtio -netdev tap,id=net0,ifname=tap0,script=no,downscript=no -device virtio-net-pci,netdev=net1,mac=52:54:00:12:34:56
The tap device tap0 already exists and is attached to the bridge br0. What causes the failure?
a) script=no stops QEMU from opening tap0, leaving the back end without an interface
b) -device asks for the back end net1, but the only -netdev option present defines net0
c) if=virtio also needs a separate -device virtio-blk-pci option for the disk
d) A mac= property on -device is accepted only with a -netdev user back end
04. Which statement describes a PVH guest on a Xen host?
a) It runs an unmodified kernel on emulated firmware and devices supplied by a QEMU device model
b) It runs without CPU virtualization extensions and updates its page tables through hypercalls
c) It uses hardware extensions and a Xen-aware kernel, with no emulated firmware
d) It runs as a container that shares the Dom0 kernel and is isolated only by namespaces
05. The running domain app1 has this element in its XML, and its guest supports vCPU hot-plug:
<vcpu placement='static' current='2'>4</vcpu>
The guest must get all four vCPUs now, without a reboot. Which command meets this requirement?
a) virsh setvcpus app1 4 --live
b) virsh setvcpus app1 4 --maximum --config
c) virsh vcpupin app1 2 4
d) virsh setvcpus app1 4 --config
06. A disk-only snapshot of a running database VM is taken through the hypervisor, with no guest agent and no flush inside the guest. Weeks later the VM is reverted to that snapshot, and on start-up the database runs crash recovery and has lost its last uncommitted transactions.
Why did this happen?
a) Reverting a disk-only snapshot also discards the guest file system journal
b) A disk-only snapshot pauses the guest for its whole run and aborts open transactions
c) It captured the disk as a power cut leaves it, without RAM or unflushed data
d) qcow2 overlays keep only metadata, so data written before the snapshot is dropped
07. As root, an administrator runs unshare --pid --fork bash. In the new shell, echo $$ prints 1, yet ps aux still lists every host process with its host PID.
What causes the ps output?
a) Without --user, the kernel ignores --pid and keeps the shell in the PID namespace of the host
b) With --fork, bash stays in the parent namespace and only the processes it starts enter the new one
c) ps obtains its list through a system call that is not aware of PID namespaces
d) The shell still reads the host's /proc; --mount-proc mounts a procfs for the new PID namespace
08. An administrator wants to run KVM guests inside the guest lab1, which itself runs with KVM acceleration on a host with an Intel CPU. Inside lab1, grep -c vmx /proc/cpuinfo prints 0. On the host, these results are observed:
grep -c vmx /proc/cpuinfo prints 16
cat /sys/module/kvm_intel/parameters/nested prints N
What is the root cause?
a) VT-x is disabled in the host firmware, so no guest on this host can be shown the vmx flag
b) The kvm_intel module inside lab1 is not loaded yet, and the guest kernel hides vmx until it is
c) The host's kvm_intel module has nested virtualization disabled, so the vCPUs of lab1 are never offered the vmx flag
d) lab1 uses virtio disk and network devices, which leave no room for a second hypervisor layer inside the guest
09. On a host with AppArmor enabled, a Docker container started with --cap-add SYS_ADMIN gets "permission denied" when it runs mount -t tmpfs none /mnt. The host kernel log shows:
apparmor="DENIED" operation="mount" profile="docker-default"
Which mechanism refuses the mount?
a) The AppArmor profile confining the container
b) The capability bounding set, which --cap-add cannot extend at container start
c) The seccomp filter, which drops the mount() call before any capability check
d) The user namespace, since a mount needs CAP_SYS_ADMIN in the initial namespace
10. User alice (host UID 1001) runs a rootless Podman container. Inside it:
$ cat /proc/self/uid_map
0 1001 1
1 100000 65536
A process in the container runs as UID 1000 and creates a file in a bind-mounted host directory. Which host UID owns the file?
a) 101000
b) 100999
c) 1000
d) 1001
Answers:
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Question: 01 Answer: d |
Question: 02 Answer: c |
Question: 03 Answer: b |
Question: 04 Answer: c |
Question: 05 Answer: a |
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Question: 06 Answer: c |
Question: 07 Answer: d |
Question: 08 Answer: c |
Question: 09 Answer: a |
Question: 10 Answer: b |
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