[2023年最新] 最高の試験LFCA問題集は無料サイトの資料を試そう
無料Certified IT Associate (LFCA) LFCAオフィシャル認証ガイドPDFをダウンロード
質問 # 26
When using vi or vim to edit a file, how do you exit without saving?
- A. :exit
- B. ZZ
- C. :q!
- D. :wq!
正解：C
質問 # 27
What software application architecture allows teams to iterate quickly and to develop software applications to scale rapidly?
- A. Container architecture
- B. Micro-service architecture
- C. SOA architecture
- D. Serverless architecture
正解：B
質問 # 28
Which of the following best describes the DevOps methodology of Continuous Delivery?
- A. The focus is on configuration management and continuous monitoring.
- B. The focus is on product releases but also includes coding, building, integrating and testing software
- C. The focus is on automating releases of projects as soon as possible.
- D. The focus is on coding, building, integrating, and testing software.
正解：C
質問 # 29
In which file are system and user account passwords stored?
- A. /etc/passwd
- B. /etc/login.defs
- C. /etc/shadow
- D. /etc/secure
正解：C
質問 # 30
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. chown
- B. setcap
- C. chmod
- D. auditd
正解：C
質問 # 31
Which of the following is a solution to providing Internet access to a private network using only a single public IPv4 address?
- A. NAT gateway
- B. Virtual private network
- C. Local area network
- D. Routing gateway
正解：A
質問 # 32
A supervisor instructs an IT associate to encrypt all data on a particular partition on a Linux database host. What open source technology would be used to encrypt the data?
- A. BitLocker
- B. MD5
- C. ext4
- D. LUKS
正解：A
質問 # 33
What technology could be used to address software dependency conflicts between applications on the same host operating system?
- A. cgroups
- B. Type 1 hvpervisors
- C. Type 2 hvpervisors
- D. Containers
正解：D
質問 # 34
Encryption that uses both a private key and public key is known as what?
- A. Public Key Cryptography (asymmetric cryptography)
- B. HMAC Cryptography (hash based message authentication]
- C. Key Pair Encryption (symmetric cryptography)
- D. DPE (dual-phased hybrid encryption]
正解：A
質問 # 35
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. 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.
- B. The frequency and stability of software deployments will be increased, which can lead to faster time to market.
- C. The DevOps tool framework reduces the mean time to recovery and number of outaqes, which results in increased sales.
- D. 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.
正解：B
質問 # 36
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. Reduce the bitrate to reduce the size of the video streams.
- B. Stop serving the video streams when a certain price limit is reached.
- C. Use a content delivery network to distribute the streams.
- D. Serve the video streams only to a limited number of users at a time.
正解：C
質問 # 37
An IT associate would find the log files for syslog in which of the following directories?
- A. /usr/local/logs
- B. /home/logs
- C. /etc/logs
- D. /var/log
正解：D
質問 # 38
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. Beta release
- C. Experimental release
- D. Alpha release
正解：A
質問 # 39
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. postfix -onboot yes
- C. svstemctl enable postfix
- D. enable postfix on
正解：C
質問 # 40
By default, the Linux operating system uses what access control to manage files/users?
- A. Discretionary Access Control
- B. Least Privilege
- C. Full Control
- D. Mandatory Access Control
正解：A
質問 # 41
Which measures can be taken to prevent unauthorized access to cloud instances and services?
- A. Implement firewall rules, authentication, authorization, and encrypted protocols.
- B. Implement block-chain tokens, use encrypted protocols, and encrypt the data on storage systems.
- C. Replicate data to another datacenter, use multi-factor authentication, and encrypt data on storage systems.
- D. Use multi-factor authentication, implement firewall rules, and back up data off-site.
正解：A
質問 # 42
Which is a common best practice to automatically reduce disk usage associated with the storage of log files?
- A. Create a cron job that deletes all log files in the folder every day.
- B. Delete the Vvar/log" directory so the log files are prevented from being created.
- C. Manually empty the log files every day of the week.
- D. Use the loqrotate utility to periodically rotate the loq files.
正解：D
質問 # 43
What command is used to view new content as it is written to a log file?
- A. cut -f1-5
- B. grep -f
- C. tail -f
- D. cat
正解：C
質問 # 44
Which of the following standard log files would provide the most detailed information on why a recently upgraded custom kernel failed to boot?
- A. /var/log/svslog
- B. /var/log/kern.log
- C. /var/log/auth.log
- D. /var/log/boot.log
正解：B
質問 # 45
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
正解：A
質問 # 46
Which of the following is considered a best practice for hardening SSHD?
- A. Completely disabling ssh access
- B. Renaming root to a random name
- C. Using portknocking to protect ssh access for root
- D. Disabling ssh access for root
正解：D
質問 # 47
Which option will cause ls to display hidden files and folders?
- A. ls -a
- B. ls -v
- C. ls -l
- D. ls -t
正解：A
質問 # 48
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. cqroups
- B. climits
- C. UnionFS
- D. Namespaces
正解：A
質問 # 49
Which of the following best describes open source compliance?
- A. 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
- B. 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
- C. A process by which software components are compiled in a development environment, pushed to staging, and then finally moved to production
- D. A process in which various users of open source software observe copyright notices and satisfy license obligations for their open source software components
正解：D
質問 # 50
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Linux Foundation LFCAオフィシャル認証ガイドPDF：https://jp.fast2test.com/LFCA-premium-file.html