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

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

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

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

What does IaaS stand for?

A. IT as a Service

B. Integration as a Service

C. Infrastructure as a Service

D. Information as a Service

What software application architecture allows teams to iterate quickly and to develop software applications to scale rapidly?

A. Serverless architecture

B. Container architecture

C. SOA architecture

D. Micro-service architecture

A company's IT associate lists the contents of a directory and sees this line:

-rwsr-x--x 2 bob sales 2047 Oct 10 09:44 sales-report

What happens when Alice from the accounting team tries to execute this file?

A. The script executes using Bob's account.

B. The script executes, but Alice cannot see the results.

C. The script executes and Bob is notified.

D. The script fails to execute; Alice is not on the sales team.

Which of the following best describes open source compliance?

A. A process by which software components are compiled in a development environment, pushed to staging, and then finally moved to production

B. A process in which various users of open source software observe copyright notices and satisfy license obligations for their open source software components

C. A process by which users of open source software evaluate each line of their code against an open source dictionary to determine which components have been plagiarized

D. A process by which open source software is first initiated by a requirements analysis, followed by design and then implementation, with a final testing step

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