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Linux Foundation LFCA Exam Syllabus Topics:
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NEW QUESTION # 26
On systemd-based Linux systems, what are runlevels called?
- A. Units
- B. Targets
- C. Services
- D. Modes
Answer: B
NEW QUESTION # 27
When using vi or vim to edit a file, how do you exit without saving?
- A. :q!
- B. :exit
- C. :wq!
- D. ZZ
Answer: A
NEW QUESTION # 28
What technology could be used to address software dependency conflicts between applications on the same host operating system?
- A. Type 2 hvpervisors
- B. cgroups
- C. Containers
- D. Type 1 hvpervisors
Answer: C
NEW QUESTION # 29
A host seems to be running slowly. What command would help diagnose which processes are using system resources?
- A. lop
- B. df
- C. uptime
- D. free
Answer: A
NEW QUESTION # 30
A server on the network is unreachable. What is the best method to verify connectivity between your computer and the remote server?
- A. lookup
- B. find
- C. ping
- D. netstat
Answer: C
NEW QUESTION # 31
In which file are system and user account passwords stored?
- A. /etc/shadow
- B. /etc/login.defs
- C. /etc/passwd
- D. /etc/secure
Answer: A
NEW QUESTION # 32
What command is used to set or change permission attributes of files (such as read, write, execute)?
- A. chown
- B. setattr
- C. chmod
- D. chacl
Answer: C
NEW QUESTION # 33
What command is used to view new content as it is written to a log file?
- A. tail -f
- B. grep -f
- C. cat
- D. cut -f1-5
Answer: A
NEW QUESTION # 34
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. auditd
- B. chown
- C. setcap
- D. chmod
Answer: D
NEW QUESTION # 35
By default, the Linux operating system uses what access control to manage files/users?
- A. Mandatory Access Control
- B. Full Control
- C. Discretionary Access Control
- D. Least Privilege
Answer: C
NEW QUESTION # 36
Which of the following is a non-functional requirement?
- A. The system must adhere to all security requirements and regulations.
- B. The system must allow the user to upload a profile image.
- C. The system must provide the user the option to enable multi-factor authentication.
- D. The system must allow the administrator to disable user accounts.
Answer: A
NEW QUESTION # 37
Which of the following best describes serverless computing?
- A. A model where a provider manages the back-end infrastructure management tasks, such as provisioning, scaling, scheduling, and patching
- B. 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
- C. 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
- 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
Answer: A
NEW QUESTION # 38
Which of the following deployment environments is accessed by customers/end-users in a live or real-time fashion?
- A. Production
- B. Runtime
- C. Website
- D. Staging
Answer: A
NEW QUESTION # 39
Which of these providers host repositories of container images?
- A. Container Index
- B. Docker Hub
- C. GitHub
- D. GitLab
Answer: B
NEW QUESTION # 40
What command do you use to view the structure of system directory hierarchies?
- A. ls -t
- B. ls tree
- C. fee | ls /etc
- D. tree
Answer: D
NEW QUESTION # 41
What is an appropriate cost consideration when implementing serverless functions in the cloud?
- A. Virtual machine configuration and memory allocation
- B. vCPU resources and disk cache
- C. Elapsed lime of function execution and memory used
- D. Runtime environment and container configuration
Answer: C
NEW QUESTION # 42
A software development team uses a single physical server for testing the latest code in multiple environments: development, pre-production, and production.
What is the recommended approach to maintain the basic security of these environments?
- A. Implement peer review for all the changes deployed into any of the environments
- B. Assign different developers on the team to work on test, pre-prod. and prod code.
- C. Develop and deploy each environment with its own set of software tools.
- D. Use different user/group IDs for deploying and running workload in each environment.
Answer: D
NEW QUESTION # 43
What is the underlying technology that allows containers to be restricted to defined limits for system resource usage such as CPU, memory, and network bandwidth?
- A. UnionFS
- B. cqroups
- C. Namespaces
- D. climits
Answer: B
NEW QUESTION # 44
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
Answer: A
NEW QUESTION # 45
What is the Linux kernel?
- A. It is the firmware for the computer's processor.
- B. It contains all the applications and software installed on the computer.
- C. It is the core interface between a computer's hardware and its processes.
- D. It is another name for the operating system.
Answer: C
NEW QUESTION # 46
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