Linux Foundation LFCA Online Practice Questions and Exam Preparation

Linux Foundation LFCA Online Questions & Answers

• Question 21:

  Which measures can be taken to prevent unauthorized access to cloud instances and services?

  A. Use multi-factor authentication, implement firewall rules, and back up data off-site.
  B. Implement block-chain tokens, use encrypted protocols, and encrypt the data on storage systems.
  C. Replicate data to another datacenter, use multi-factor authentication, and encrypt data on storage systems.
  D. Implement firewall rules, authentication, authorization, and encrypted protocols.
  D. Implement firewall rules, authentication, authorization, and encrypted protocols.

• Question 22:

  An IT associate is responsible for protecting and maintaining the integrity of a set of configuration files. What command could be used to prevent users from modifying these files?

  A. setcap
  B. auditd
  C. chmod
  D. chown
  C. chmod

• Question 23:

  When working on a Linux system with firewalld enabled, how can other systems be allowed to access the HTTPS port on the system in the default firewall zone so that the access is granted immediately and persists across reboots?

  A. firewallctl --add-port=https --reload
  B. iptables --add-service=https --permanent
  C. firewalld --add-service=https
  D. firewall-cmd --add-service=https --permanent --reload
  D. firewall-cmd --add-service=https --permanent --reload

• Question 24:

  An IT team needs to synchronize large amounts of data between two nodes on the company's local network. This data changes daily and it is not feasible to copy the entire directory tree each time. Which is the best option to securely copy files in the most timely and efficient manner?

  A. rsync
  B. scp
  C. fsync
  D. netcp
  A. rsync

• Question 25:

  What open source tool is used to manage instances in the cloud using infrastructure as code?

  A. SystemsDeplover
  B. Vault
  C. Terraform
  D. Docker
  C. Terraform

• Question 26:

  After installing the package `postfix', what command would you run in order to ensure that Postfix is started on reboot?

  A. /etc/init.d/enable postfix
  B. enable postfix on
  C. postfix -onboot yes
  D. svstemctl enable postfix
  D. svstemctl enable postfix

• Question 27:

  When using rsync to mirror a local directory to a remote server, what is the significance of the --delete option?

  A. Files absent from the remote directory will be restored from the local directory.
  B. Files present in the local directory, but not present in the remote directory, will be deleted.
  C. Files absent from the local directory will be restored from the remote directory.
  D. Files present in the remote directory, but not present in the local directory, will be deleted.
  D. Files present in the remote directory, but not present in the local directory, will be deleted.

• Question 28:

  Which of the following best describes the technical term "Elasticity"?

  A. The degree to which a system can adapt to dynamic computing demands
  B. The degree to which a business accommodates larger loads just by adding resources
  C. The degree to which a system consistently performs according to its specifications
  D. The ability to meet the business's needs through a variety of cloud offerings
  A. The degree to which a system can adapt to dynamic computing demands

• Question 29:

  Which option will cause ls to display hidden files and folders?

  A. ls -v
  B. ls -l
  C. ls -a
  D. ls -t
  C. ls -a

• Question 30:

  What file is created to assemble a Docker image, which contains all the commands a user has to run to make the image from start to finish?

  A. DockerBuild
  B. Dockerfile
  C. BuildFile
  D. ImageFile
  B. Dockerfile