The Linux Foundation LFCA 問題練習

Question No : 1
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

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Question No : 2
What open source tool is used to manage instances in the cloud using infrastructure as code?

• A.SystemsDeplover
• B.Vault
• C.Terraform
• D.Docker

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Question No : 3
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

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Question No : 4
What is an appropriate cost consideration when implementing serverless functions in the cloud?

• A.vCPU resources and disk cache
• B.Elapsed lime of function execution and memory used
• C.Virtual machine configuration and memory allocation
• D.Runtime environment and container configuration

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Question No : 5
Which of these providers host repositories of container images?

• A.Docker Hub
• B.GitHub
• C.Container Index
• D.GitLab

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Question No : 6
In which file are system and user account passwords stored?

• A./etc/passwd
• B./etc/login.defs
• C./etc/shadow
• D./etc/secure

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Question No : 7
Which option will cause ls to display hidden files and folders?

• A.ls -v
• B.ls -l
• C.ls -a
• D.ls -t

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Question No : 8
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.Namespaces
• D.cqroups

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Question No : 9
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

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Question No : 10
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

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Question No : 11
An IT associate would find the log files for syslog in which of the following directories?

• A./var/log
• B./usr/local/logs
• C./home/logs
• D./etc/logs

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Question No : 12
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]

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Question No : 13
What does LVM stand for?

• A.Logical Virtualization Manager
• B.Linux Volume Manager
• C.Logical Volume Manager
• D.Linux Virtualization Manager

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Question No : 14
Which utility is used to create public and private key pairs for SSH authentication?

• A.adduser
• B.ssh-keyqen
• C.keyqen
• D.ssh

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Question No : 15
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.Assign different developers on the team to work on test, pre-prod. and prod code.
• B.Implement peer review for all the changes deployed into any of the environments
• 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.

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