CompTIA Server+ SK0-005 Book

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.

Overprovisioning is a situation where the allocated resources for a virtual machine exceed the available resources of the physical host. In this case, the storage allocated for Server 1 and Server 2 on VM01 is 8TB and 10TB respectively, which adds up to 18TB. However, the storage available on the VM01 host is only 16TB, which means there is a 2TB deficit. This can cause performance issues and errors for the virtual machines.

Retention policiesdefine how long data should be kept before being archived or deleted and help in determining the frequency of backups to ensure data is available when needed. These policies are crucial for compliance, storage management, and disaster recovery planning.

Retention policies (Answer A):These directly address how long data is kept and how often it should be backed up.

Service-level agreement (Option B):SLAs define performance expectations and uptime, not specific data retention or backup schedules.

Life-cycle management (Option C):This refers to managing data from creation to disposal but doesn’t specifically address backup frequency or retention periods.

Mean time to recover (Option D):This metric measures how long it takes to restore services after a failure, not backup scheduling.

CompTIA Server+ Reference:This topic relates toSK0-005 Objective 4.2: Explain the importance of data security concepts.

To free up storage space on a SAN with minimal effort and no additional cost, the following methods can be used:

Configuring compression (Answer A):Compression reduces the size of files stored on the SAN, allowing more data to be stored in the same space.

Enabling deduplication (Answer E):Deduplication identifies and removes duplicate copies of data, reducing the amount of space required for storage.

Deleting old and unused files (Option B):While effective, this requires manual effort and may not be the best long-term solution.

Increasing the number of IOPS (Option C):This relates to improving performance, not reducing storage space.

Decreasing the RAID level (Option D):Lowering the RAID level could reduce redundancy, which may free up space but also decreases fault tolerance.

Upgrading the filesystem type (Option F):This is a complex process that doesn’t directly reduce storage usage.

CompTIA Server+ Reference:This topic is covered underSK0-005 Objective 3.2: Summarize storage technologies and solutions.