CompTIA Server+ (SK0-005) - Learn Tech From Zero

Course Overview:
The CompTIA Server+ (SK0-005) certification is designed for IT professionals who want to validate their knowledge and skills in server hardware, software, storage, best practices, disaster recovery, and troubleshooting in a data center or server environment. Unlike many vendor-specific certifications, Server+ covers a broad range of server technologies, making it highly versatile for careers in IT infrastructure, systems administration, and server management.

Why We Need It:
Servers are the backbone of modern IT environments, powering businesses, websites, applications, and cloud services. Server+ ensures that IT professionals can effectively manage, maintain, and troubleshoot server systems, reducing downtime and improving operational efficiency. Organizations benefit from certified staff who understand hardware, virtualization, security, and disaster recovery.

How It Is Useful:

Validates skills in server architecture, installation, configuration, and maintenance.
Covers network storage, security, disaster recovery, and virtualization concepts.
Prepares professionals to handle troubleshooting and performance optimization.
Enhances career opportunities for roles like Server Administrator, Systems Administrator, IT Technician, and Data Center Technician.

Course Benefits:

Gain hands-on experience with server technologies.
Learn best practices for installation, upgrades, and maintenance.
Understand security and disaster recovery protocols for server environments.
Boost credibility with employers through a globally recognized certification.

Certification Details:

Exam Code: SK0-005
Format: Multiple choice and performance-based questions
Recommended Experience: 18–24 months of IT experience, including server support and administration
Renewal: CompTIA certifications typically require renewal every 3 years through continuing education (CE) or retesting.

Who Should Take This Course:
This course is ideal for IT professionals working with servers, aspiring system administrators, network engineers, or anyone who wants to gain in-depth knowledge of server technologies.

Key Skills Covered:

Server architecture and hardware components
Installation, configuration, and troubleshooting
Storage, virtualization, and cloud concepts
Security and disaster recovery
Best practices for maintenance and operations

CompTIA Server SK0-005 Exam Objectives (5.0)Download

EXAM DOMAINS AND WEIGHTS

Domain	% of Exam
1.0 Server Hardware Installation and Management	18%
2.0 Server Administration	30%
3.0 Security and Disaster Recovery	24%
4.0 Troubleshooting	28%
Total	100%

1.0 Server Hardware Installation and Management (18%)

1.1 Install Physical Hardware

1.2 Given a scenario, deploy and manage storage.

1.3 Given a scenario, perform server hardware maintenance.

2.0 Server Administration (30%)

2.1 Given a scenario, install server operating systems.

2.2 Given a scenario, configure servers to use network infrastructure services.

2.3 Given a scenario, configure and maintain server functions and features.

Server roles requirements
− Print
− Database
− File
− Web
− Application
− Messaging
− Baselining
◦ Documentation
◦ Performance metrics
Directory connectivity
Storage management
− Formatting
− Connectivity
− Provisioning
− Partitioning
− Page/swap/scratch
location and size
− Disk quotas
− Compression
− Deduplication
Monitoring
− Uptime
− Thresholds
− Performance
◦ Memory
◦ Disk
▪ Input output operations
per second (IOPS)
▪ Capacity vs. utilization
◦ Network
◦ Central processing unit (CPU)
− Event logs
◦ Configuration
◦ Shipping
◦ Alerting
◦ Reporting
◦ Retention
◦ Rotation
Data migration and transfer
− Infiltration
− Exfiltration
− Disparate OS data transfer
◦ Robocopy
◦ File transfer
◦ Fast copy
◦ Secure copy protocol (SCP)
Administrative interfaces
− Console
− Remote desktop
− Secure shell (SSH)
− Web interface

2.4 Explain the key concepts of high availability for servers.

Clustering
− Active-active
− Active-passive
− Failover
− Failback
− Proper patching procedures
− Heartbeat
Fault tolerance
− Server-level redundancy vs.
component redundancy
Redundant server network
infrastructure
− Load balancing
◦ Software vs. hardware
◦ Round robin
◦ Most recently used (MRU)
− Network interface card (NIC)
teaming and redundancy
◦ Failover
◦ Link aggregation

2.5 Summarize the purpose and operation of virtualization.

Host vs. guest
Virtual networking
− Direct access (bridged)
− Network address translation (NAT)
− vNICs
− Virtual switches
Resource allocation and provisioning
− CPU
− Memory
− Disk
− NIC
− Overprovisioning
− Scalability
Management interfaces
for virtual machines
Cloud models
− Public
− Private
− Hybrid

2.6 Summarize scripting basics for server administration.

Script types
− Bash
− Batch
− PowerShell
− Virtual basic script (VBS)
Environment variables
Comment syntax
Basic script constructs
− Loops
− Variables
− Conditionals
− Comparators
Basic data types
− Integers
− Strings
− Arrays
Common server administration
scripting tasks
− Startup
− Shut down
− Service
− Login
− Account creation
− Bootstrap

2.7 Explain the importance of asset management and documentation.

Asset management
− Labeling
− Warranty
− Leased vs. owned devices
− Life-cycle management
◦ Procurement
◦ Usage
◦ End of life
◦ Disposal/recycling
− Inventory
◦ Make
◦ Model
◦ Serial number
◦ Asset tag
Documentation management
− Updates
− Service manuals
− Architecture diagrams
− Infrastructure diagrams
− Workflow diagrams
− Recovery processes
− Baselines
− Change management
− Server configurations
− Company policies and procedures
◦ Business impact analysis (BIA)
◦ Mean time between
failure (MTBF)
◦ Mean time to recover (MTTR)
◦ Recovery point objective (RPO)
◦ Recovery time objective (RTO)
◦ Service level agreement (SLA)
Uptime requirements
Document availability
Secure storage of sensitive
documentation

2.8 Explain licensing concepts.

Models
− Per-instance
− Per-concurrent user
− Per-server
− Per-socket
− Per-core
− Site-based
− Physical vs. virtual
− Node-locked
− Signatures
Open source
Subscription
License vs. maintenance
and support
Volume licensing
License count validation
− True up
Version compatibility
− Backward compatible
− Forward compatible

3.0 Security and Disaster Recovery (24%)

3.1 Summarize data security concepts.

Encryption paradigms
− Data at rest
− Data in transit
Retention policies
Data storage
− Physical location storage
− Off-site vs. on-site
UEFI/BIOS passwords
Bootloader passwords
Business impact
− Data value prioritization
− Life-cycle management
− Cost of security vs. risk
and/or replacement

3.2 Summarize physical security concepts.

Physical access controls
− Bollards
− Architectural reinforcements
◦ Signal blocking
◦ Reflective glass
◦ Datacenter camouflage
− Fencing
− Security guards
− Security cameras
− Locks
◦ Biometric
◦ Radio frequency
identification (RFID)
◦ Card readers
− Access control vestibules
− Safes
Environmental controls
− Fire suppression
− Heating, ventilation, and
cooling (HVAC)
− Sensors

3.3 Explain important concepts pertaining to identity and access management for server
administration.

User accounts
User groups
Password policies
− Length
− Lockout
− Enforcement
Permissions and access controls
− Role-based
− Rule-based
− Scope based
− Segregation of duties
− Delegation
Auditing
− User activity
− Logins
− Group memberships
− Deletions
Multifactor authentication (MFA)
− Something you know
− Something you have
− Something you are
Single sign-on (SSO)

3.4 Explain data security risks and mitigation strategies.

Security risks
− Hardware failure
− Malware
− Data corruption
− Insider threats
− Theft
◦ Data loss prevention (DLP)
◦ Unwanted duplication
◦ Unwanted publication
− Unwanted access methods
◦ Backdoor
◦ Social engineering
− Breaches
◦ Identification
◦ Disclosure
Mitigation strategies
− Data monitoring
− Log analysis
◦ Security information and
event management (SIEM)
− Two-person integrity
◦ Split encryption keys tokens
◦ Separation of roles
− Regulatory constraints
◦ Governmental
◦ Individually privileged information
▪ Personally identifiable
information (PII)
▪ Payment Card Industry Data
Security Standard (PCI DSS)
− Legal considerations
◦ Data retention
◦ Subpoenas

3.5 Given a scenario, apply server hardening methods.

OS hardening
− Disable unused services
− Close unneeded ports
− Install only required software
− Apply driver updates
− Apply OS updates
− Firewall configuration
Application hardening
− Install latest patches
− Disable unneeded services,
roles, or features
Host security
− Antivirus
− Anti-malware
− Host intrusion detection
system (HIDS)/Host intrusion
prevention system (HIPS)
Hardware hardening
− Disable unneeded hardware
− Disable unneeded physical
ports, devices, or functions
− Set BIOS password
− Set boot order
Patching
− Testing
− Deployment
− Change management

3.6 Summarize proper server decommissioning concepts.

Proper removal procedures
− Company policies
− Verify non-utilization
− Documentation
գ Asset management
գ Change management
Media destruction
− Disk wiping
− Physical
գ Degaussing
գ Shredding
գ Crushing
գ Incineration
− Purposes for media destruction
Media retention requirements
Cable remediation
− Power
− Networking
Electronics recycling
− Internal vs. external
− Repurposing

3.7 Explain the importance of backups and restores.

Backup methods
− Full
− Synthetic full
− Incremental
− Differential
− Archive
− Open file
− Snapshot
Backup frequency
Media rotation
Backup media types
− Tape
− Cloud
− Disk
− Print
File-level vs. system-state backup
Restore methods
− Overwrite
− Side by side
− Alternate location path
Backup validation
− Media integrity
− Equipment
− Regular testing intervals
Media inventory before restoration

3.8 Explain the importance of disaster recovery.

Site types
− Hot site
− Cold site
− Warm site
− Cloud
− Separate geographic locations
Replication
− Constant
− Background
− Synchronous vs. asynchronous
− Application consistent
− File locking
− Mirroring
− Bidirectional
Testing
− Tabletops
− Live failover
− Simulated failover
− Production vs. non-production

4.0 Troubleshooting (28%)

4.1 Explain the troubleshooting theory and methodology.

Identify the problem and
determine the scope.
− Question users/stakeholders
and identify changes to the
server/environment.
− Collect additional
documentation/logs.
− If possible, replicate the
problem as appropriate.
− If possible, perform backups
before making changes.
− Escalate, if necessary.
Establish a theory of probable
cause (question the obvious).
− Determine whether there is a
common element or symptom
causing multiple problems.
Test the theory to
determine the cause.
− Once the theory is confirmed,
determine the next steps
to resolve the problem.
− If the theory is not confirmed,
establish a new theory.
Establish a plan of action
to resolve the problem.
− Notify impacted users.
Implement the solution or escalate.
− Make one change at a time
and test/confirm the change
has resolved the problem.
− If the problem is not resolved,
reverse the change, if appropriate,
and implement a new change.
Verify full system functionality
and, if applicable, implement
preventive measures.
Perform a root cause analysis.
Document findings, actions, and
outcomes throughout the process.

4.2 Given a scenario, troubleshoot common hardware failures.

Common problems
− Predictive failures
− Memory errors and failures
◦ System crash
▪ Blue screen
▪ Purple screen
▪ Memory dump
◦ Utilization
◦ Power-on self-test (POST) errors
◦ Random lockups
◦ Kernel panic
− Complementary metaloxide-semiconductor
(CMOS) battery failure
− System lockups
− Random crashes
− Fault and device indication
◦ Visual indicators
− Light-emitting diode (LED)
− Liquid crystal display
(LCD) panel readouts
◦ Auditory or olfactory cues
◦ POST codes
− Misallocated virtual resources
Causes of common problems
− Technical
◦ Power supply fault
▪ Malfunctioning fans
▪ Improperly seated heat sink
▪ Improperly seated cards
▪ Incompatibility of components
▪ Cooling failures
▪ Backplane failure
▪ Firmware incompatibility
▪ CPU or GPU overheating
− Environmental
◦ Dust
◦ Humidity
◦ Temperature
Tools and techniques
− Event logs
− Firmware upgrades or downgrades
− Hardware diagnostics
− Compressed air
− Electrostatic discharge
(ESD) equipment
− Reseating or replacing
components and/or cables

4.3 Given a scenario, troubleshoot storage problems.

Common problems
− Boot errors
− Sector block errors
− Cache battery failure
− Read/write errors
− Failed drives
− Page/swap/scratch file or partition
− Partition errors
− Slow file access
− OS not found
− Unsuccessful backup
− Unable to mount the device
− Drive not available
− Cannot access logical drive
− Data corruption
− Slow I/O performance
− Restore failure
− Cache failure
− Multiple drive failure
Causes of common problems
− Disk space utilization
գ Insufficient disk space
− Misconfigured RAID
− Media failure
− Drive failure
− Controller failure
− Host bus adapter (HBA) failure
− Loose connectors
− Cable problems
− Misconfiguration
− Corrupt boot sector
− Corrupt filesystem table
− Array rebuild
− Improper disk partition
− Bad sectors
− Cache battery failure
− Cache turned off
− Insufficient space
− Improper RAID configuration
− Mismatched drives
− Backplane failure
Tools and techniques
− Partitioning tools
− Disk management
− RAID and array management
− System logs
− Disk mounting commands
◦ net use
◦ mount
− Monitoring tools
− Visual inspections
− Auditory inspection

4.4 Given a scenario, troubleshoot common OS and software problems.

Common problems
− Unable to log on
− Unable to access resources
− Unable to access files
− System file corruption
− End of life/end of support
− Slow performance
− Cannot write to system logs
− Service failures
− System or application hanging
− Freezing
− Patch update failure
Causes of common problems
− Incompatible drivers/modules
− Improperly applied patches
− Unstable drivers or software
− Server not joined to domain
− Clock skew
− Memory leaks
− Buffer overrun
− Incompatibility
◦ Insecure dependencies
◦ Version management
◦ Architecture
− Update failures
− Missing updates
− Missing dependencies
− Downstream failures due to updates
− Inappropriate applicationlevel permissions
− Improper CPU affinity and priority
OS and software tools
and techniques
− Patching
◦ Upgrades
◦ Downgrades
− Package management
− Recovery
◦ Boot options
▪ Safe mode
▪ Single user mode
◦ Reload OS
◦ Snapshots
− Proper privilege escalations
◦ runas/Run As
◦ sudo
◦ su
− Scheduled reboots
− Software firewalls
◦ Adding or removing ports
◦ Zones
− Clocks
◦ Network time protocol (NTP)
◦ System time
− Services and processes
◦ Starting
◦ Stopping
◦ Status identification
◦ Dependencies
− Configuration management
◦ System center configuration
manager (SCCM)
◦ Puppet/Chef/Ansible
◦ Group Policy Object (GPO)
− Hardware compatibility list (HCL)

4.5 Given a scenario, troubleshoot network connectivity issues.

Common problems
− Lack of Internet connectivity
− Resource unavailable
− Receiving incorrect
DHCP information
− Non-functional or unreachable
− Destination host unreachable
− Unknown host
− Unable to reach remote subnets
− Failure of service provider
− Cannot reach server by hostname/
fully qualified domain name (FQDN)
Causes of common problems
− Improper IP configuration
− IPv4 vs. IPv6 misconfigurations
− Improper VLAN configuration
− Network port security
− Component failure
− Incorrect OS route tables
− Bad cables
− Firewall (misconfiguration,
hardware failure, software failure)
− Misconfigured NIC
− DNS and/or DHCP failure
− DHCP server misconfigured
− Misconfigured hosts file
Tools and techniques
− Check link lights
− Confirm power supply
− Verify cable integrity
− Check appropriate cable selection
− Commands
◦ ipconfig
◦ ip addr
◦ ping
◦ tracert
◦ traceroute
◦ nslookup
◦ netstat
◦ dig
◦ telnet
◦ nc
◦ nbtstat
◦ route

4.6 Given a scenario, troubleshoot security problems.

Common concerns
− File integrity
− Improper privilege escalation
◦ Excessive access
− Applications will not load
− Cannot access network fileshares
− Unable to open files
Causes of common problems
− Open ports
− Services
◦ Active
◦ Inactive
◦ Orphan/zombie
− Intrusion detection configurations
− Anti-malware configurations
− Improperly configured
local/group policies
− Improperly configured firewall rules
− Misconfigured permissions
− Virus infection
− Malware
− Rogue processes/services
− Data loss prevention (DLP)
Security tools
− Port scanners
− Sniffers
− Telnet clients
− Anti-malware
− Antivirus
− File integrity
◦ Checksums
◦ Monitoring
◦ Detection
◦ Enforcement
− User access controls
◦ SELinux
◦ User account control (UAC)

EXAM DOMAINS AND WEIGHTS

1.0 Server Hardware Installation and Management (18%)

2.0 Server Administration (30%)

3.0 Security and Disaster Recovery (24%)

4.0 Troubleshooting (28%)

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