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| Topic | Details |
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| Topic 1 | - Supporting Applications and Developers: This topic introduces Software Project Management principles for effective project execution, Software Application Architecture for designing robust systems, and Functional Analysis to understand requirements. It also discusses Open-source Software and Licensing, offering insights into collaborative development. This section enhances the ability to support software development initiatives effectively.
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| Topic 2 | - Security Fundamentals: This section emphasizes critical security practices, covering Security Basics to understand threats, Data Security for protecting sensitive information, Network Security for securing connections, and System Security to safeguard systems. IT administrators gain practical knowledge to maintain secure IT environments and defend against vulnerabilities.
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| Topic 3 | - Linux Fundamentals: In this topic, IT administrators or engineers explore the foundational principles of the Linux operating system. The subject delves into Linux Operating System basics, File Management Commands, and System Commands, equipping learners with skills for effective system navigation. Additionally, General Networking Commands are covered to enable seamless communication between systems.
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Linux Foundation Certified IT Associat Sample Questions (Q120-Q125):
NEW QUESTION # 120
How do you display the first 10 lines of a file in Linux?
- A. cat
- B. tail
- C. less
- D. head
Answer: D
NEW QUESTION # 121
A stateful web app stores session data in each server's memory. To support more users by adding servers, which common technique enables horizontal scaling and what is its trade-off?
- A. Sharding the application logic, which is a quick and simple process.
- B. Using a load balancer with sticky sessions, which can lead to uneven load distribution across servers.
- C. Replicating the server's entire memory in real-time, which is a low-overhead solution.
- D. Vertical scaling, which avoids the stateful problem entirely.
Answer: B
Explanation:
For a stateful web application that stores session data in server memory, sticky sessions ensure that a user's requests are consistently directed to the same server. This enables horizontal scaling by allowing multiple servers behind a load balancer. The trade-off is that traffic may not be distributed evenly, as some servers can accumulate more active sessions and load than others.
NEW QUESTION # 122
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. Use different user/group IDs for deploying and running workload in each environment.
- D. Develop and deploy each environment with its own set of software tools.
Answer: C
NEW QUESTION # 123
A user needs to grant the file owner read, write, and execute permissions, the group read and execute permissions, and no permissions to others. Which command achieves this?
- A. chmod 700 report.sh
- B. chmod 640 report.sh
- C. chmod 755 report.sh
- D. chmod 750 report.sh
Answer: D
Explanation:
In octal notation, read = 4, write = 2, and execute = 1. The owner requires 4+2+1 = 7, the group requires 4+1 = 5, and others require 0. Therefore chmod 750 produces rwxr-x---, which matches the stated requirement exactly.
NEW QUESTION # 124
Which of the following is a true statement about the Command and Query Responsibility Segregation (CQRS) pattern?
- A. CQRS separates front-end and back-end operations.
- B. The main goal of CQRS is to reduce complexity.
- C. CQRS separates network access from filesystem access.
- D. CQRS separates read and update operations for a data store.
Answer: D
Explanation:
CQRS is a design pattern that separates read (query) and write (command) operations for a data store. This allows optimization of read and write workloads independently, improves scalability, and can simplify handling of complex business logic without affecting the other operation type.
NEW QUESTION # 125
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