Linux Foundation LFCA Online Practice Questions and Exam Preparation

Linux Foundation LFCA Online Questions & Answers

• Question 11:

  Which of the following technologies is supported by the majority of cloud providers in order to support the orchestration of containerized applications?

  A. Kubernetes
  B. Vagrant
  C. Ansible
  D. Terraform
  A. Kubernetes

• Question 12:

  An IT associate is researching technology options to use at a company. The company's application requires a Linux server, features a small memory footprint, and runs mostly web services and a few back-end applications. Which of the following would allow for the most efficient use of system resources and fast startup speeds?

  A. Containers
  B. Hybrid Cloud
  C. Physical hardware
  D. Virtualization
  A. Containers

• Question 13:

  Which of the following best describes serverless computing?

  A. A model of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another
  B. A model where a provider manages the back-end infrastructure management tasks, such as provisioning, scaling, scheduling, and patching
  C. An abstraction layer over computer hardware that allows the hardware elements of a single computer-processors, memory, storage, and more-to be divided into multiple segments
  D. A solution comprised of sensors, software, and other technologies for the purpose of connecting and exchanging data with other devices and systems over the internet
  B. A model where a provider manages the back-end infrastructure management tasks, such as provisioning, scaling, scheduling, and patching

• Question 14:

  By default, the Linux operating system uses what access control to manage files/users?

  A. Discretionary Access Control
  B. Mandatory Access Control
  C. Least Privilege
  D. Full Control
  A. Discretionary Access Control

• Question 15:

  A team just developed a new feature on the company's main web application. An IT associate wants to test this new feature by making it available for only 10% of the users. If everything works without any problems for a week, the associate will then make it available for all users. Which release type should be used to achieve this goal?

  A. Canary release
  B. Experimental release
  C. Alpha release
  D. Beta release
  A. Canary release

• Question 16:

  Which of the following deployment environments is accessed by customers/end-users in a live or real-time fashion?

  A. Production
  B. Runtime
  C. Staging
  D. Website
  A. Production

• Question 17:

  Which port is normally required to be open for secure remote interactive shell access to Linux systems?

  A. 443/tcp
  B. 23/tcp
  C. 22/tcp
  D. 25/tcp
  C. 22/tcp

• Question 18:

  What command is used to view new content as it is written to a log file?

  A. cat
  B. grep -f
  C. cut -f1-5
  D. tail -f
  D. tail -f

• Question 19:

  Encryption that uses both a private key and public key is known as what?

  A. Key Pair Encryption (symmetric cryptography)
  B. HMAC Cryptography (hash based message authentication]
  C. Public Key Cryptography (asymmetric cryptography)
  D. DPE (dual-phased hybrid encryption]
  C. Public Key Cryptography (asymmetric cryptography)

• Question 20:

  Which of the following is a solution to providing Internet access to a private network using only a single public IPv4 address?

  A. Routing gateway
  B. NAT gateway
  C. Local area network
  D. Virtual private network
  B. NAT gateway