LPI DevOps Tools Engineer 701-100 Exam Dumps: Updated Questions & Answers (October 2025)

Service discovery is crucial in container environments to enable containers to find and communicate with each other. The common mechanisms for service discovery in container platforms include:

Environment Variables: Container platforms often set environment variables within containers to provide information about services. This method is simple and allows containers to access necessary details without additional configuration.

DNS Records: Many container platforms maintain DNS records that map service names to container IP addresses. This allows services to be discovered and accessed using standard DNS queries, which is a scalable and widely used approach.

The other options are not standard methods for service discovery:

A: There is no docker service discover command for service discovery.

C: Listing localhost ports in /etc/services is not a typical method used by container platforms.

D: Mounting sockets for all services into containers’ file systems is not a common practice for service discovery.

References:

Docker Documentation - Service Discovery

Kubernetes Documentation - Service Discovery

A. The apt module in Ansible can be used to ensure that an installed package is updated to the latest version.

B. It can also be used to update the list of available packages from the configured repositories using the update_cache parameter.

References: Ansible Documentation - apt module

A Vagrant box file is a compressed archive containing all the necessary components to launch a virtual machine with Vagrant. It typically includes:

Metadata file: This file describes the box, its version, and the provider it supports. It contains information needed by Vagrant to understand how to use the box.

Base file system image: This is the core component of the box, which is a file system image in a format supported by the provider (e.g., VirtualBox, VMware).

The other options are incorrect:

A: Vagrant guest configuration files are not used to create instances of the box.

B: Configuration files for provisioners are not typically included in the box file itself.

C: The installer for the Vagrant version is not included in the box file.

References:

Vagrant Documentation - Box Format

Agile software development methodologies prioritize flexibility and adaptability over strict adherence to plans. They encourage self-organizing teams and flexible processes to quickly respond to change and deliver value incrementally.

Self-organization: Teams are empowered to organize their work and make decisions collaboratively without heavy-handed management.

Flexibility: Agile methodologies advocate for adapting processes and plans as necessary to meet the needs of the project and stakeholders.

References:

Agile Manifesto

Principles behind the Agile Manifesto

In Git, several commands are used to manage files within a repository. These include adding, removing, and moving files. The correct commands for managing files as per the options given are:

git rm: This command removes files from the working directory and the index (staging area). This is used to delete files from the repository.

git mv: This command moves or renames files in the working directory and the index. This is essentially a combination of git rm (remove) and git add (add) in one command.

The other options are not valid Git commands:

git cp and git copy: There are no Git commands for copying files directly. File copying is typically done using standard file system commands, and then using git add to track the new files.

git move: This is not a valid Git command; the correct command for moving or renaming files is git mv.

References:

Git Documentation - git rm

Git Documentation - git mv

When a Docker container is started and the Dockerfile contains both COPY and VOLUME instructions as follows:

COPY data/ /data/

VOLUME /data

C. Existing files from /data/ in the image are copied to the new volume: Docker will copy the contents of /data in the image into the volume when the container is started. This ensures that the initial state of the volume includes the files that were copied into /data during the build process.

E. A new volume is created and mounted to /data/ within the new container: Docker creates a new volume if none is specified and mounts it to /data in the container. This volume persists data outside the container's lifecycle.

The other options are incorrect:

A: Files in /data/ in the image are made available in the running container via the volume.

B: Changes to files within /data/ do not affect the Docker image; they only affect the volume.

D: Docker does not raise an error when mounting a volume to a directory that already contains data.

References:

Docker Documentation - Managing Data in Containers

The correct answers to the question "Which of the statements below are true about the volume created by the following command? docker run -v /data -ti debian" are:

D. The /data volume can be attached to another Docker container.E. If the command is run a second time, another volume for /data is created.

When you run docker run -v /data -ti debian, Docker creates a volume for /data inside the container. This volume can be managed in the following ways:

Volume Attachment: Volumes are designed to be shared between containers. The volume /data can be attached to other Docker containers, allowing them to read from and write to the same data store.

Multiple Volumes: If you run the command again, Docker will create a new volume for /data, as volumes are specific to the container instance unless explicitly shared.

The other options are incorrect:

A: The new volume does not contain a copy of the complete container's base image; it is an empty volume.

B: The volume containing the container’s root filesystem is not retained until the /data volume is deleted.

C: Volumes are persistent and are not discarded when the container terminates unless explicitly removed.

References:

Docker Documentation - Manage Data in Containers

In Kubernetes, the highest level of the definition of every object includes elements like apiVersion, kind, and metadata. The metadata element is used to define the unique attributes of the object, such as its name, namespace, labels, and annotations.

References: Kubernetes Documentation - Object Management

A Logstash configuration file is typically divided into three main sections: input, filter, and output. Each section serves a distinct purpose in the data processing pipeline.

input: This section defines where Logstash will collect data from, such as files, syslog, or beats.

filter: This section processes the data collected from inputs. It can include parsing, modification, and enrichment of the data using various filter plugins.

output: This section specifies where the processed data should be sent, such as Elasticsearch, files, or other endpoints.

The other options are incorrect:

D. forward: This is not a standard section in Logstash configuration.

E. generate: This is not a standard section in Logstash configuration.

References:

Logstash Documentation - Configuration

C. Using a certificate issuing service (e.g., Let's Encrypt) allows each server to obtain a valid, trusted certificate, ensuring secure HTTPS communication.

D. A load balancer can handle HTTPS termination, decrypting incoming HTTPS requests and forwarding them as plain HTTP to backend servers.

E. Installing a wildcard certificate on all backend servers ensures that each server can handle HTTPS requests using the same certificate, simplifying management.

References:

Let's Encrypt Documentation

AWS Documentation - Load Balancer HTTPS Listener

Wildcard Certificates - SSL.com