QUESTION: 17

A server administrator is using remote access to update a server. The administrator notices numerous error messages when using YUM to update the applications on a server.
Which of the following should the administrator check FIRST?

Network connectivity on the server
LVM status on the server
Disk space in the /var directory
YUM dependencies

Answer(s): C

Explanation:

The administrator should check disk space in the /var directory first when using YUM to update applications on a server. YUM stands for Yellowdog Updater Modified, which is a software package manager for Linux systems that use RPM (Red Hat Package Manager) packages. YUM downloads and installs packages from online repositories and resolves dependencies automatically. YUM stores its cache files in the /var/cache/yum directory by default. These cache files include metadata and package data for each repository that YUM uses. If there is not enough disk space in the /var directory, YUM may fail to update applications and generate error messages.

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QUESTION: 18

Which of the following is an example of load balancing?

Round robin
Active-active
Active-passive
Failover

Answer(s): A

Explanation:

Round robin is an example of load balancing. Load balancing is the method of distributing network traffic equally across a pool of resources that support an application. Load balancing improves application availability, scalability, security, and performance by preventing any single resource from being overloaded or unavailable. Round robin is a simple load balancing algorithm that assigns each incoming request to the next available resource in a circular order. For example, if there are three servers (A, B, C) in a load balancer pool, round robin will send the first request to server A, the second request to server B, the third request to server C, the fourth request to server A again, and so on.

Reference:

https://simplicable.com/new/load-balancing

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QUESTION: 19

Which of the following is the MOST appropriate scripting language to use for a logon script for a Linux box?

VBS
Shell
Java
PowerShell
Batch

Answer(s): B

Explanation:

Shell is the most appropriate scripting language to use for a logon script for a Linux box. Shell is a generic term for a command-line interpreter that allows users to interact with the operating system by typing commands and executing scripts. Shell scripts are files that contain a series of commands and instructions that can be executed by a shell. Shell scripts are commonly used for automating tasks, such as logon scripts that run when a user logs on to a system. There are different types of shells available for Linux systems, such as Bash, Ksh, Zsh, etc., but they all share a similar syntax and functionality.

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QUESTION: 20

Which of the following tools will analyze network logs in real time to report on suspicious log events?

Syslog
DLP
SIEM
HIPS

Answer(s): C

Explanation:

SIEM is the tool that will analyze network logs in real time to report on suspicious log events. SIEM stands for Security Information and Event Management, which is a software solution that collects, analyzes, and correlates log data from various sources, such as servers, firewalls, routers, antivirus software, etc. SIEM can detect anomalies, patterns, trends, and threats in the log data and generate alerts or reports for security monitoring and incident response. SIEM can also provide historical analysis and compliance reporting for audit purposes.

Reference:

https://www.manageengine.com/products/eventlog/syslog-server.html

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QUESTION: 17

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QUESTION: 18

Explanation:

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QUESTION: 20

Explanation:

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