LFCA問題集PDFでLFCAリアル試験問題解答 [Q22-Q41]

LFCA問題集PDFでLFCAリアル試験問題解答

時間限定！今すぐ試そうLFCA試験 [2024] 問題集でLinux FoundationのPDF問題

質問 # 22
In which file are system and user account passwords stored?

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

正解：A

質問 # 23
Which utility is used to create public and private key pairs for SSH authentication?

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

正解：A

質問 # 24
Which of the following best describes the DevOps methodology of Continuous Delivery?

A. The focus is on automating releases of projects as soon as possible.
B. The focus is on coding, building, integrating, and testing software.
C. The focus is on product releases but also includes coding, building, integrating and testing software
D. The focus is on configuration management and continuous monitoring.

正解：A

質問 # 25
Which measures can be taken to prevent unauthorized access to cloud instances and services?

A. Replicate data to another datacenter, use multi-factor authentication, and encrypt data on storage systems.
B. Implement firewall rules, authentication, authorization, and encrypted protocols.
C. Implement block-chain tokens, use encrypted protocols, and encrypt the data on storage systems.
D. Use multi-factor authentication, implement firewall rules, and back up data off-site.

正解：B

質問 # 26
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/boot.log
B. /var/log/kern.log
C. /var/log/svslog
D. /var/log/auth.log

正解：B

質問 # 27
By default, the Linux operating system uses what access control to manage files/users?

A. Full Control
B. Discretionary Access Control
C. Least Privilege
D. Mandatory Access Control

正解：B

質問 # 28
The Linux kernel uses a:

A. hybrid microkernel architecture
B. dual architecture
B microkernel architecture
C. monolithic architecture

正解：C

質問 # 29
Which of the following best describes open source compliance?

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

正解：A

質問 # 30
What is an appropriate cost consideration when implementing serverless functions in the cloud?

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

正解：C

質問 # 31
Which of the following technologies is supported by the majority of cloud providers in order to support the orchestration of containerized applications?

A. Kubernetes
B. Terraform
C. Ansible
D. Vagrant

正解：A

質問 # 32
What command is used to set or change permission attributes of files (such as read, write, execute)?

A. chmod
B. setattr
C. chacl
D. chown

正解：A

質問 # 33
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 # 34
Encryption that uses both a private key and public key is known as what?

A. Public Key Cryptography (asymmetric cryptography)
B. Key Pair Encryption (symmetric cryptography)
C. DPE (dual-phased hybrid encryption]
D. HMAC Cryptography (hash based message authentication]

正解：A

質問 # 35
What does LVM stand for?

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

正解：C

質問 # 36
On systemd-based Linux systems, what are runlevels called?

A. Modes
B. Targets
C. Services
D. Units

正解：B

質問 # 37
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 application that requires a regionally- or globally-distributed file system
D. An event-driven application with dynamic scaling

正解：D

質問 # 38
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. chmod
B. auditd
C. setcap
D. chown

正解：A

質問 # 39
What technology could be used to address software dependency conflicts between applications on the same host operating system?

A. cgroups
B. Containers
C. Type 1 hvpervisors
D. Type 2 hvpervisors

正解：B

質問 # 40
An IT associate is researching technology options to use at a company. The company's application requires a Linux server, features a small memory footprint, and runs mostly web services and a few back-end applications. Which of the following would allow for the most efficient use of system resources and fast startup speeds?