Name: CompTIA SK0-005日本語 Exam
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SKU: SK0-005日本語
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CompTIA SK0-005 Exam Syllabus Topics:

Topic	Details
Server Hardware Installation and Management - 18%
Given a scenario, install physical hardware.	- Racking Enclosure sizes Unit sizes - 1U, 2U, 3U, etc. Rack layout - Cooling management - Safety 1. Proper lifting techniques 2. Rack balancing 3. Floor load limitations - Power distribution unit (PDU) - Keyboard-video-mouse (KVM) placement - Rail kits - Power cabling Redundant power - Uninterruptible power supply (UPS) - Separate circuits - Separate providers Power connector types Cable management - Network cabling Redundant networking Twisted pair Fiber - SC - LC - Single mode - Multimode Gigabit 10 GigE Small form factor pluggable (SFP) SFP+ Quad small form factor pluggable (QSFP) Cable management - Server chassis types Tower Rack mount Blade enclosure - Server components Hardware compatibility list (HCL) Central processing unit (CPU) Graphics processing unit (GPU) Memory Bus types Interface types Expansion cards
Given a scenario, deploy and manage storage.	- RAID levels and types 0 1 5 6 10 Just a bunch of disks (JBOD) Hardware vs. software - Capacity planning - Hard drive media types Solid state drive (SSD) - Wear factors 1. Read intensive 2. Write intensive Hard disk drive (HDD) - Rotations per minute (RPM) 1. 15,000 2. 10,000 3. 7,200 Hybrid - Interface types Serial attached SCSI (SAS) Serial ATA (SATA) Peripheral component interconnect (PCI) External serial advanced technology attachment (eSATA) Universal serial bus (USB) Secure digital (SD) - Shared storage Network attached storage (NAS) - Network file system (NFS) - Common Internet file system (CIFS) Storage area network (SAN) - Internet small computer systems interface (iSCSI) - Fibre Channel - Fibre Channel over Ethernet (FCoE)
Given a scenario, perform server hardware maintenance.	- Out-of-band management Remote drive access Remote console access Remote power on/off Internet protocol keyboard-video-mouse (IP KVM) - Local hardware administration Keyboard-video-mouse (KVM) Crash cart Virtual administration console Serial connectivity Console connections - Components Firmware upgrades - Drives - Hot-swappable hardware Drives Cages Cards Power supplies Fans - Basic input/output system (BIOS)/Unified Extensible Firmware Interface (UEFI)
Server Administration - 30%
Given a scenario, install server operating systems.	- Minimum operating system (OS) requirements - Hardware compatibility list (HCL) - Installations Graphical user interface (GUI) Core Bare metal Virtualized Remote Slip streamed/unattended - Scripted installations - Additional drivers - Additional applications and utilities - Patches Media installation type - Network - Optical - Universal serial bus (USB) - Embedded Imaging - Cloning 1. Virtual machine (VM) cloning 2. Physical clones 3. Template deployment 4. Physical to virtual (P2V) - Partition and volume types Global partition table (GPT) vs. master boot record (MBR) Dynamic disk Logical volume management (LVM) - File system types ext4 New technology file system (NTFS) VMware file system (VMFS) Resilient file system (ReFS) Z file system (ZFS)
Given a scenario, configure servers to use network infrastructure services.	- IP configuration - Virtual local area network (VLAN) - Default gateways - Name resolution Domain name service (DNS) Fully qualified domain name (FQDN) Hosts file - Addressing protocols IPv4 - Request for comments (RFC) 1918 address spaces IPv6 - Firewall Ports - Static vs. dynamic Dynamic host configuration protocol (DHCP) - MAC addresses
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 1. Input output operations per second (IOPS) 2. 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
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
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
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
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
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
Security and Disaster Recovery - 24%
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
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 - Mantraps - Safes - Environmental controls Fire suppression Heating, ventilation, and cooling (HVAC) Sensors
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)
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 1. Personally identifiable information (PII) 2. Payment Card Industry DataSecurity Standard (PCI DSS) Legal considerations - Data retention - Subpoenas
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
Summarize proper server decommissioning concepts.	- Proper removal procedures Company policies Verify non-utilization Documentation - Asset management - Change management - Media destruction Disk wiping Physical - Degaussing - Shredding - Crushing - Incineration Purposes for media destruction - Media retention requirements - Cable remediation Power Networking - Electronics recycling Internal vs. external Repurposing
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
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
Troubleshooting - 28%
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.
Given a scenario, troubleshoot common hardware failures.	- Common problems Predictive failures Memory errors and failures - System crash 1. Blue screen 2. Purple screen 3. Memory dump - Utilization - Power-on self-test (POST) errors - Random lockups - Kernel panic Complementary metal-oxide-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
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 - Insufficient disk space Misconfigured RAID Media failure Drive failure Controller failure Hot 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 inspections
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 application-level permissions Improper CPU affinity and priority - OS and software tools and techniques Patching - Upgrades - Downgrades Package management Recovery - Boot options 1. Safe mode 2. 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)
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
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)

Reference: https://www.comptia.org/certifications/server

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