Lpi 701-100 Online Practice Questions and Exam Preparation

Lpi 701-100 Online Questions & Answers

• Question 51:

  Which of the following statements describes the principal concept behind test driven development?

  A. Tests may not be written by the same development team that wrote the tested code.
  B. All tests are generated automatically from the tested source code.
  C. Tests are written before the function / method is implemented.
  D. The only acceptable reason to write a test is to prevent fixed bugs from occurring again.
  E. Instead of testing software automatically, manual tests are performed and logged daily.
  C. Tests are written before the function / method is implemented.

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  Explanation/Reference:

  https://en.wikipedia.org/wiki/Test-driven_development

• Question 52:

  If docker stack is to be used to run a Docker Compose file on a Docker Swarm, how are the images referenced in the Docker Compase configuration made available on the Swarm nodes?

  A. Docker stack intructs the Swarm nodes to pull the images from a registry, although it does not upload the images to the registry.
  B. Docker stack transfers the image from its local Docker cache to each Swarm node.
  C. Docker stack passes the images to the Swarm master which distributes the images to all other Swarm nodes.
  D. Docker stack builds the images locally and copies them to only those Swarm nodes which run the service.
  E. Docker stack triggers the build process for the images on all nodes of the Swarm.
  B. Docker stack transfers the image from its local Docker cache to each Swarm node.

• Question 53:

  The file myapp.yml exists with the following content:

  version: "3" services: frontend: image: frontend ports:

  "80:80" backend: image: backend deploy: replicas: 2

  Given that file was successfully processed by docker stack deploy myapp -compose--file myapp.yml, which of the following objects might be created? (Choose THREE correct answers)

  A. An overlay network called myapp_default.
  B. A node called myapp_frontend.
  C. A container called myapp_backend.2.ymia7v7of5g02j3j3i1btt8z.
  D. A volumen called myapp_frontend.1.
  E. A service called myapp_frontend.
  A. An overlay network called myapp_default.
  B. A node called myapp_frontend.
  D. A volumen called myapp_frontend.1.

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  Explanation/Reference:

• Question 54:

  How does Packer interact with system images?

  A. Packer creates an instance based on a source image, prepares the instance through a network connection and bundles the resulting.
  B. Packer has to be installed within the target image and is executed during the image's first boot in order to execute preparation tasks.
  C. Packer installs a client within the image which has to be run periodically via cron in order to retrieve the latest template from the Packer server and appy it locally.
  D. Packer downloads and extracts an image in order to make changes to the image's file system, repack the modified image and upload it again.
  E. Packer periodically connects through the network to the Packer daemons of all running Packer images in order to re-apply the wholw template to the running instance.
  A. Packer creates an instance based on a source image, prepares the instance through a network connection and bundles the resulting.

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  Explanation/Reference:

• Question 55:

  When creating a new Docker network, which mechanisms are available for address assignments to containers on the new nerwork? (Choose TWO correct answers.)

  A. By default, Docker chooses an unused private address space and assigns addresses from this network to containers.
  B. All networked containers must contain at least one IPADDRESS statement in their Dockerfile specifying the container's address.
  C. Docker does not configure IP addresses and relies on the containers to configure their network interface with a calid IP address.
  D. By defaulr, Docker requests one address per container using DHCP on the interface used by the host system's default route.
  E. Docker network create allows specifying a network to be used for container addressing using --subnet.
  A. By default, Docker chooses an unused private address space and assigns addresses from this network to containers.
  D. By defaulr, Docker requests one address per container using DHCP on the interface used by the host system's default route.

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  Explanation/Reference:

• Question 56:

  Consider the following Kubernetes Deployment:

  

  With the ReplicaSet:

  

  And the Pods:

  

  What happens if one of the Pods is terminated with the command kubect1 pod delete?

  A. The remaining Pods are stopped and the Deployment switches to the state Failed.
  B. The number of replicas in the ReplicaSet is changed to 4.
  C. The ReplicaSet immediately starts a new replacement Pod.
  D. The remaining Pods are stopped and a new ReplicaSet is started.
  E. The Deployment switches to the state Degraded.
  C. The ReplicaSet immediately starts a new replacement Pod.

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  Explanation/Reference:

• Question 57:

  What is tested by unit tests?

  A. The syntactical correctness of the source code of a software component.
  B. The formal validity of a service's external REST API.
  C. The integration of multiple component of the same software.
  D. The correctness of a specific function of a software component.
  E. The throughput, load capacity and latency of a service.
  D. The correctness of a specific function of a software component.

• Question 58:

  Which variable is used in the Ansible inventory file to specify the location of an SSH private key file?

  A. ansible_ssh_private_key_file
  B. ansible_ssh_key_file
  C. ansible_private_key
  D. ansible_private_key_file
  E. ansible_ssh_login_credentials
  A. ansible_ssh_private_key_file

• Question 59:

  If a Dockerfile references the container's base image without a specific version tag, which tag of that image is used to create the container?

  A. latest
  B. default
  C. current
  D. nightly
  E. lts
  A. latest

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  Explanation/Reference:

  https://docs.docker.com/engine/reference/commandline/build/

• Question 60:

  Which of the following elements are presents in a Vagrant box file? (Choose two correct answers.)

  A. A Vagrant guest configuration file that is used to create instances of the box.
  B. Configuration files for provisioners such as Ansible.
  C. The installer for the Vagrant version which is required to run the box.
  D. A metadata file describing the box and its requirements.
  E. A base file system image in a format supported by the provider of the box.
  D. A metadata file describing the box and its requirements.
  E. A base file system image in a format supported by the provider of the box.

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  Explanation/Reference: