CompTIA SK0-005 Exam Dumps

Abusiness impact analysis (BIA)is a document that outlines the potential effects of downtime on business operations. It identifies critical business functions and estimates the impact of disruption on the organization's ability to function.

Business impact analysis (Answer D):This document is specifically designed to assess the consequences of downtime and other disruptions.

Service-level agreement (Option A):Defines the expected level of service between a provider and a client but doesn't directly explain downtime consequences.

Business continuity plan (Option B):Outlines how the business will continue operating during a disruption but doesn't focus solely on the consequences of downtime.

Disaster recovery plan (Option C):Focuses on restoring systems after a disaster but doesn't outline the specific impact of downtime.

CompTIA Server+ Reference:This topic relates toSK0-005 Objective 4.1: Explain disaster recovery concepts.

The administrator should close ports 21 and 23 to secure the server properly. Port 21 is used for FTP (File Transfer Protocol), which is an unsecure protocol that allows file transfer between a client and a server over a network connection. FTP does not encrypt the data or the credentials that are transmitted, making them vulnerable to interception or modification by attackers. Port 23 is used for Telnet, which is an unsecure protocol that allows remote login and command execution over a network connection using a CLI. Telnet does not encrypt the data or the credentials that are transmitted, making them vulnerable to interception or modification by attackers.

https://www.csoonline.com/article/3191531/securing-risky-network-ports.html

LVM (Logical Volume Manager) is a tool that allows the technician to increase a partition's size in the future without reformatting it on a Linux server. LVM creates logical volumes that can span across multiple physical disks or partitions and can be resized dynamically without losing data. LVM also provides other features such as snapshots, encryption, and RAID. DiskPart, fdisk, and Format are tools that can be used to partition and format disks, but they do not allow increasing a partition's size without reformatting it. Reference: https://www.howtogeek.com/howto/40702/how-to-manage-and-use-lvm-logical-volume-management-in-ubuntu/ https://www.howtogeek.com/school/using-windows-admin-tools-like-a-pro/lesson2/https://www.howtogeek.com/howto/17001/how-to-format-a-usb-drive-in-ubuntu-using-gparted/

The AVC denial error message indicates that SELinux (Security-Enhanced Linux) is preventing the MySQL update from installing. SELinux is a security module that enforces mandatory access control policies on Linux systems. To install the MySQL update, the technician should issue the setenforce 0 command, which temporarily disables SELinux enforcement until the next reboot. Downloading the update manually, creating a firewall rule, or issuing the yum -y update mysql command will not resolve the error.Reference: [CompTIA Server+ Certification Exam Objectives], Domain 4.0: Server Administration, Objective 4.3: Given a scenario, troubleshoot server issues using appropriate tools.

1U stands for one unit and it is a standard unit of measurement for rack-mounted servers. It is equal to 1.75 inches (4.45 cm) in height. A 42U rack can accommodate 42 1U servers or a combination of servers with different unit sizes. Therefore, the unit size per server should be 1U if there are 19 1U servers in a 42U rack.Reference: https://www.comptia.org/training/resources/exam-objectives/comptia-server-sk0-005-exam-objectives (Objective 1.2)