LFCA Online Practice Questions and Answers

Which type of cloud computing combines on-premise infrastructure with a public cloud?

A. Super cloud

B. Combination cloud

C. Hybrid cloud

D. Mixed cloud

A company's IT associate has been asked to switch to single-user mode on a running Linux server in order to perform some troubleshooting. Of the options below, which is the best way of doing this?

A. su single

B. init singleuser

C. Isu 1

D. linit 1

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

A. SystemsDeplover

B. Vault

C. Terraform

D. Docker

The Linux kernel uses a:

A. dual architecture

B. microkernel architecture

C. monolithic architecture

D. hybrid microkernel architecture

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

Which of the following Git commands creates a new, empty Git repository?

A. git clone

B. git fork

C. git pull

D. git in it

An IT associate has a web application running on multiple servers, configured to scale based on CPU usage. The current configuration has a minimum size of 1 and a maximum size of 5 servers, designed to launch and spread the instances across 3 Availability Zones (AZ). During a low utilization period, an entire AZ went down, and the application experienced downtime. What can the IT associate do to increase the availability of the application?

A. Increase the minimum to 2

B. Change to scale based on number of requests

C. Decrease the AZs to 2

D. Increase the maximum to 6

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

Which of these providers host repositories of container images?

A. Docker Hub

B. GitHub

C. Container Index

D. GitLab

Which of the following commands can be used to lock a user's account so that they cannot log into a Linux server without removing any files, folders, or data?

A. lock

B. usermod

C. userdel

D. chmod