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LFCA Exam Prep Guide: Prep guide for the LFCA Exam
NEW QUESTION # 29
Which option will cause ls to display hidden files and folders?
- A. ls -a
- B. ls -t
- C. ls -l
- D. ls -v
Answer: A
NEW QUESTION # 30
Which of the following best describes the technical term "Elasticity"?
- A. The ability to meet the business's needs through a variety of cloud offerings
- 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 degree to which a system can adapt to dynamic computing demands
Answer: D
NEW QUESTION # 31
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. climits
- B. UnionFS
- C. cqroups
- D. Namespaces
Answer: C
NEW QUESTION # 32
Which of the following would be the most appropriate use-case for a Function as a Service (FaaS) implementation?
- A. An application that requires a local file system
- B. An application that continuously polls for work to process
- C. An event-driven application with dynamic scaling
- D. An application that requires a regionally- or globally-distributed file system
Answer: C
NEW QUESTION # 33
Which of these providers host repositories of container images?
- A. Docker Hub
- B. Container Index
- C. GitHub
- D. GitLab
Answer: A
NEW QUESTION # 34
What open source tool is used to manage instances in the cloud using infrastructure as code?
- A. SystemsDeplover
- B. Vault
- C. Docker
- D. Terraform
Answer: D
NEW QUESTION # 35
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. Use different user/group IDs for deploying and running workload in each environment.
- 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. Implement peer review for all the changes deployed into any of the environments
Answer: A
NEW QUESTION # 36
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 maximum to 6
- B. Increase the minimum to 2
- C. Change to scale based on number of requests
- D. Decrease the AZs to 2
Answer: B
NEW QUESTION # 37
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. Dockerfile
- B. ImageFile
- C. BuildFile
- D. DockerBuild
Answer: A
NEW QUESTION # 38
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. firewalld --add-service=https
- C. firewall-cmd --add-service=https --permanent --reload
- D. iptables --add-service=https --permanent
Answer: C
NEW QUESTION # 39
Encryption that uses both a private key and public key is known as what?
- A. Key Pair Encryption (symmetric cryptography)
- B. DPE (dual-phased hybrid encryption]
- C. HMAC Cryptography (hash based message authentication]
- D. Public Key Cryptography (asymmetric cryptography)
Answer: D
NEW QUESTION # 40
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
Answer: A
NEW QUESTION # 41
What command do you use to view the structure of system directory hierarchies?
- A. fee | ls /etc
- B. ls tree
- C. ls -t
- D. tree
Answer: D
NEW QUESTION # 42
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
Answer: B
NEW QUESTION # 43
An IT associate would find the log files for syslog in which of the following directories?
- A. /var/log
- B. /usr/local/logs
- C. /etc/logs
- D. /home/logs
Answer: A
NEW QUESTION # 44
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. usermod
- B. userdel
- C. lock
- D. chmod
Answer: A
NEW QUESTION # 45
Which of the following is a commonly used open source software used to connect to SSL/TLS VPN services?
- A. OpenVPN
- B. GNUVPN
- C. NordVPN
- D. VPNConnect
Answer: A
NEW QUESTION # 46
After installing the package 'postfix', what command would you run in order to ensure that Postfix is started on reboot?
- A. svstemctl enable postfix
- B. /etc/init.d/enable postfix
- C. enable postfix on
- D. postfix -onboot yes
Answer: A
NEW QUESTION # 47
An IT associate is creating a business case to adopt a DevOps approach in an organization. Which of the following is a benefit of DevOps to include in the business case?
- A. Developers take on the work of the operations team. The operations team, therefore, needs fewer people, reducing the number of people the organization needs to pay.
- B. The new DevOps team takes over the work the development team does not have time to complete. The developers then have time to create new features.
- C. The frequency and stability of software deployments will be increased, which can lead to faster time to market.
- D. The DevOps tool framework reduces the mean time to recovery and number of outaqes, which results in increased sales.
Answer: C
NEW QUESTION # 48
An IT associate is working with a video streaming provider. What is a common approach to reduce bandwidth cost while supporting the same or an increasing number of video streams and customers?
- A. Serve the video streams only to a limited number of users at a time.
- B. Stop serving the video streams when a certain price limit is reached.
- C. Use a content delivery network to distribute the streams.
- D. Reduce the bitrate to reduce the size of the video streams.
Answer: C
NEW QUESTION # 49
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
Answer: C
NEW QUESTION # 50
Which of the following best describes the DevOps methodology of Continuous Delivery?
- A. The focus is on product releases but also includes coding, building, integrating and testing software
- B. The focus is on coding, building, integrating, and testing software.
- C. The focus is on configuration management and continuous monitoring.
- D. The focus is on automating releases of projects as soon as possible.
Answer: D
NEW QUESTION # 51
A host seems to be running slowly. What command would help diagnose which processes are using system resources?
- A. lop
- B. uptime
- C. df
- D. free
Answer: A
NEW QUESTION # 52
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LFCA Practice Exam - 62 Unique Questions: https://drive.google.com/open?id=15tamHe7NMv6BM8ah5jqK4P0rh-xzXSNs