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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: IT Project Management & Open Source | 10% | - Application Architecture Basics - Software Project Management - Open Source Licensing & Compliance - Functional Analysis Concepts |
| Topic 2: Security Fundamentals | 14% | - System Security Best Practices - Network Security Principles - Information Security Basics - Data Protection & Privacy - Access Control & Authentication |
| Topic 3: DevOps Fundamentals | 12% | - Continuous Integration & Deployment Basics - Version Control with Git - Introduction to Containers - DevOps Core Concepts |
| Topic 4: System Administration Fundamentals | 30% | - Networking Basics - System Troubleshooting - Disaster Recovery Concepts - System Administration Tasks - Software Installation & Management |
| Topic 5: Cloud Computing Fundamentals | 18% | - Cloud Service Models - Cloud Deployment Models - Cloud Networking Basics - Performance & Availability - Cloud Cost Management |
| Topic 6: Linux Fundamentals | 16% | - Linux Operating System Concepts - File System Hierarchy - Basic System Commands - Command Line Interface Usage |
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NEW QUESTION # 142
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?
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 # 143
A server reports that a partition is full, but adding up the file sizes in the directory does not appear to account for the used space. Which pair of commands should the administrator use to compare filesystem-level usage with directory-level usage?
Answer: D
Explanation:
The df command reports usage at the filesystem level, while du reports the disk space consumed by directories and files. Comparing the two often reveals discrepancies caused by deleted files still held open by running processes.
NEW QUESTION # 144
An LVM snapshot named db_snapshot was created for the logical volume
/dev/vg_data/lv_database. After testing, the logical volume needs to be reverted to the state captured in the snapshot. Which command should be used?
Answer: A
Explanation:
The lvconvert --merge command merges an LVM snapshot back into its origin logical volume, reverting the logical volume to the state captured when the snapshot was created. This is the standard method for rolling back changes using an LVM snapshot.
NEW QUESTION # 145
An IT associate created a new account for a user on a server. When the user attempts to log in via SSH, the following error appears in the logs:
User foo from 192.168.2.25 not allowed because not listed in AllowUsers Which option will fix this error?
Answer: A
Explanation:
The SSH daemon restricts login based on the AllowUsers directive in sshd_config. Adding the user to AllowUsers explicitly permits them to log in. After modifying the configuration, restarting sshd applies the changes.
NEW QUESTION # 146
Which of the following tools is best suited for reviewing failed login attempts on a Linux system with timestamp and source information?
Answer: C
Explanation:
lastb displays failed login attempts by reading the system's failed login records. It provides details such as usernames, source IP addresses or hosts, and timestamps, making it a useful tool for reviewing authentication failures and investigating potential unauthorized access attempts.
NEW QUESTION # 147
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