The CompTIA SK0-004 exam is a mandatory requirement for obtaining the CompTIA Server+ certification. This certificate validates the individuals’ expertise necessary to become a Server Administrator, including such competencies as security, virtualization, troubleshooting, and storage. After earning this certificate, the professionals will be able to work in any environment, as this vendor-neutral option covers all the core server platforms.
As is known to us, perfect after-sales service for buyers is a very high value. Our SK0-004 guide torrent not only has the high quality and efficiency but also the perfect service system after sale. If you decide to buy our SK0-004 test torrent, we would like to offer you 24-hour online efficient service, you have the right to communicate with us without any worries at any time you need, and you will receive a reply, we are glad to answer your any question about our SK0-004 guide torrent. You have the right to communicate with us by online contacts or by an email. The high quality and the perfect service system after sale of our SK0-004 exam questions have been approbated by our local and international customers. So you can rest assured to buy.
This subject focuses on your skills in describing a troubleshooting methodology and theory; efficiently troubleshooting hardware issues, selecting the relevant methods and tools depending on a particular scenario; efficiently troubleshooting software issues, selecting the relevant methods and tools depending on a particular scenario; efficiently determining network issues, selecting the relevant methods and tools depending on a particular scenario; efficiently troubleshooting storage issues, selecting the relevant methods and tools depending on a particular scenario; efficiently determining security issues, selecting efficiently determining depending on a particular scenario.
The price of the SK0-004 exam is $319 USD.
We will provide you with three different versions of our SK0-004 exam questions on our test platform. You have the opportunity to download the three different versions from our test platform. The three different versions of our SK0-004 test torrent include the PDF version, the software version and the online version.
The three different versions will offer you same questions and answers, but they have different functions. According to your needs, you can choose any one version of our SK0-004 guide torrent. For example, if you need to use our products in an offline state, you can choose the online version; if you want to try to simulate the real examination, you can choose the software. In a word, the three different versions of our SK0-004 test torrent.
Our company deeply knows that product quality is very important, so we have been focusing on ensuring the development of a high quality of our SK0-004 test torrent. All customers who have purchased our products have left deep impression on our SK0-004 guide torrent. Of course, the customer not only has left deep impression on the high quality of our products but also the efficiency of our products. Our SK0-004 exam questions can help you save much time, if you use our products, you just need to spend 20-30 hours on learning, and you will pass your exam successfully. What most important is that you can download our study materials about 5~10 minutes after you purchase.
We all known that most candidates will worry about the quality of our product, In order to guarantee quality of our study materials, all workers of our company are working together, just for a common goal, to produce a high-quality product; it is our SK0-004 exam questions. If you purchase our SK0-004 guide torrent, we can guarantee that we will provide you with quality products, reasonable price and professional after sales service. I think our SK0-004 test torrent will be a better choice for you than other study materials.
| Topic | Details |
|---|
Server Architecture - 12% |
| Explain the purpose and function of server form factors. | 1.Rack mount- Dimensions
1U, 2U, 4U - Cable management arms
- Rail kits
2.Tower
3.Blade technology- Blade enclosure
Backplane/midplane
Power supply sockets
Network modules/switches
Management modules - Blade server
|
| Given a scenario, install, configure and maintain server components. | 1.CPU- Multiprocessor vs. multicore
- Socket type
- Cache levels: L1, L2, L3
- Speeds
Core
Bus
Multiplier - CPU stepping
- Architecture
x86
x64
ARM
2.RAM- ECC vs. non-ECC
- DDR2, DDR3
- Number of pins
- Static vs. dynamic
- Module placement
- CAS latency
- Timing
- Memory pairing
3. Bus types, bus channels and expansion slots- Height differences and bit rate differences
- PCI
- PCIe
- PCI-X
4.NICs
5.Hard drives
6.Riser cards
7.RAID controllers
8.BIOS/UEFI
9.Firmware
10.USB interface/port
11.Hotswap vs. non-hotswap components
|
| Compare and contrast power and cooling components. | 1.Power- Voltage
110v vs. 220v vs. -48v
208v vs. 440v/460v/480v - Wattage
- Consumption
- Redundancy
- 1-phase vs. 3-phase power
- Plug types
NEMA
Edison
Twist lock
2.Cooling- Airflow
- Thermal dissipation
- Baffles/shrouds
- Fans
- Liquid cooling
|
Server Administration - 24% |
| Install and configure server operating systems. | 1.Determine server role/purpose
2.Update firmware
3.BIOS/UEFI configuration 4.Disk preparation - RAID setup
- Partitioning
- Formatting
- File system type
Ext 2, 3, 4
NTFS
FAT32
ReiserFS
UFS
VMFS
ZFS - Swap
5.Configure host name
6.Local account setup
7.Connect to network
8.Join domain/directory
9.Address security concerns- Patching
- OS hardening
- Compliance to company procedures/standards
10.Enable services
11.Install features/roles/applications/drivers
12.Performance baseline- Server optimization
- Swap or pagefile optimization
13.Unattended/remote installations- Deploying images and cloning
- Scripted installs
PXE boot
TFTP
|
| Compare and contrast server roles and requirements for each. | 1.Web server
2.Application server
3.Directory server
4.Database server
5. File server
6.Print server
7.Messaging server
8.Mail server
9.Routing and remote access server
10.Network services server |
| Given a scenario, use access and control methods to administer a server. | 1.Local hardware administration- KVM
- Serial
- Virtual administration console
2.Network-based hardware administration3. Network-based operating system administration- RDP
- SSH
- VNC
- Command line/shell
|
| Given a scenario, perform proper server maintenance techniques. | 1.Change management
2.Patch management- Operating system updates
- Application updates
- Security software updates
- Firmware updates
- Device drivers updates
- Compatibility lists
Operating systems
Hardware
Applications - Testing and validation
3.Outages and service level agreements- Scheduled downtime
- Unscheduled downtime
- Impact analysis
- Client notification
- MTTR
4.Performance monitoring- CPU utilization
- Memory utilization
- Network utilization
- Disk utilization
Disk IOPS
Storage capacity - Comparison against performance baseline
- Processes and services monitoring
- Log monitoring
5.Hardware maintenance- Check system health indicators
LEDs
Error codes
Beep codes
LCD messages - Replace failed components
Fans
Hard drives
RAM
Backplanes
Batteries - Preventive maintenance
Clearing dust
Check proper air flow - Proper shut down procedures
6. Fault tolerance and high availability techniques- Clustering
Active/active
Active/passive - Load balancing
Round robin
Heartbeat
|
| Explain the importance of asset management and documentation. | 1.Asset management- Licensing
- Labeling
- Warranty
- Life cycle management
Procurement
Usage
End of life
Disposal/recycling - Inventory
Make
Model
Serial number
Asset tag
2.Documentation- Service manuals
- Network diagrams
- Architecture diagrams
- Dataflow diagrams
- Recovery documentation
- Baseline documentation
- Change management policies
- Service level agreement
- Server configuration
3. Secure storage of sensitive documentation
|
| Explain the purpose and operation of virtualization components. | 1.Hosts and guests
2.Management interface for virtual machines
3.Hypervisor4.Hardware compatibility list- BIOS/UEFI compatibility and support
- CPU compatibility support
- AMD-V/Intel VT
5. Resource allocation between guest and host- CPU
- Storage
- Memory
- Network connectivity
Direct access (bridging) vs. NAT
Virtual NICs
Virtual switches - Video
|
Storage - 12% |
| Given a scenario, install and deploy primary storage devices based on given specifications and interfaces. | 1.Disk specifications- RPM
- Dimensions/form factor
- Capacity
- Bus width
- IOPS
- Seek time and latency
- Hotswap vs. non-hotswap components
2.Interfaces- SAS
- SATA
- SCSI
- USB
- Fibre channel
3.Hard drive vs. SSD
|
| Given a scenario, configure RAID using best practices. | 1. RAID levels and performance considerations2.Software vs. hardware RAID- Performance considerations
3.Configuration specifications - Capacity
- Bus types
- Drive RPM
4.Hotswap support and ramifications
5.Hot spare vs. cold spare
6.Array controller- Memory
- Battery backed cache
- Redundant controller
|
| Summarize hardware and features of various storage technologies. | 1.DAS
2.NAS3.SAN- iSCSI
- FCoE
- Fibre channel
- LUN and LUN masking
- HBAs and fabric switches
4.JBOD
5.Tape6.Optical drive
7.Flash, compact flash and USB drive
|
| Given a scenario, calculate appropriate storage capacity and plan for future growth. | 1. Base10 vs. Base2 disk size calculation (1000 vs. 1024)
2.Disk quotas
3.Compression
4.Capacity planning considerations- Operating system growth
Patches
Service packs
Log files
Temporary directories
Databases
Application servers
File servers
Archival
|
Security - 13% |
| Compare and contrast physical security methods and concepts. | 1.Multifactor authentication- Something you have
- Something you know
- Something you are
2.Security concepts- Mantrap
- RFID chip
- ID card
- Biometric
- Keypad
- Access list
- Security guard
- Security camera
- Keys and locks
Cabinet
Rack mount
Server - Safe
|
| Given a scenario, apply server hardening techniques. | 1.OS hardening- Stopping unneeded services/ closing unneeded ports
- Install only required software
- Install latest operating system patches
2.Application hardening- Install latest patches
- Disabling unneeded services/roles/features
3.Endpoint security4. Remediate security issues based on a vulnerability scan
5.Hardware hardening- Disabling unneeded hardware and physical ports/devices
- BIOS password
- Disable WOL (Wake on LAN)
- Setup boot order
- Chassis locks/intrusion detection
|
| Explain basic network security systems and protocols. | 1.Firewall2.Port security/802.1x/NAC
3.Router access list
4.NIDS
5.Authentication protocols6.PKI
- Private key
- Public key
- Certificate authority
- SSL/TLS
7.VPN
8.IPSec
9.VLAN
10. Security zones- DMZ
- Public and private
- Intranet and extranet
|
| Implement logical access control methods based on company policy. | 1.ACLs- Users
- Groups
Roles - Resources
File system
Network ACLs
Peripheral devices
Administrative rights
Distribution lists
2.Permissions- Read
- Write/modify
- Execute
- Delete
- Full control/superuser
- File vs. share
|
| Implement data security methods and secure storage disposal techniques. | 1.Storage encryption- File level encryption
- Disk encryption
- Tape encryption
2.Storage media- Soft wipe
File deletion - Hard wipe
Zero out all sectors
Physical destruction
Remote wipe
|
| Given a scenario, implement proper environmental controls and techniques. | 1.Power concepts and best practices- UPS
Runtime vs. capacity
Automated graceful shutdown of attached devices
Periodic testing of batteries
Maximum load
Bypass procedures
Remote management - PDU
Connect redundant rackPDUs to separate circuits - Capacity planning
PDU ratings
UPS ratings
Total potential power draw - Multiple circuits
Connect redundant power supplies to separate PDUs
2.Safety- ESD procedures
- Fire suppression
- Proper lifting techniques
- Rack stability
- Floor load limitations
- Sharp edges and pinch points
3.HVAC- Room and rack temperature and humidity
Monitoring and alert notifications - Air flow
Rack filler/baffle/blanking panels - Hot aisle and cold aisle
|
Networking - 10% |
| Given a scenario, configure servers to use IP addressing and network infrastructure services. | 1.IPv4 vs. IPv6
2.Default gateway
3.CIDR notation and subnetting
4.Public and private IP addressing
5.Static IP assignment vs. DHCP
6.DNS- FQDN
- Default domain suffix/search domain
7.WINS
8.NetBIOS
9.NAT/PAT
10.MAC addresses
11.Network Interface Card configuration- NIC teaming
- Duplexing
Full
Half
Auto - Speeds
10/100/1000 Mbps
10 Gbps
|
| Compare and contrast various ports and protocols. | 1. TCP vs. UDP2. SNMP 161
3. SMTP 25
4. FTP 20/21
5. SFTP 22
6. SSH 22
7. SCP 22
8.NTP 123
9. HTTP 80
10. HTTPS 443
11. TELNET 23
12. IMAP 143
13. POP3 110
14.RDP 3389
15.FTPS 989/990
16.LDAP 389/3268
17. DNS 53
18.DHCP 67/68 |
| Given a scenario, install cables and implement proper cable management procedures. | 1.Copper- Patch cables
Crossover
Straight through
Rollover
2.Fiber3.Connectors4.Cable placement and routing- Cable channels
- Cable management trays
Vertical
Horizontal
5.Labeling
6.Bend radius
7.Plenum cables
8.Cable ties
|
Disaster Recovery - 9% |
| Explain the importance of disaster recovery principles. | 1.Site types- Hot site
- Cold site
- Warm site
2.Replication methods- Disk-to-disk
- Server-to-server
- Site-to-site
3.Continuity of operations- Disaster recovery plan
- Business continuity plan
- Business impact analysis
Who is affected
What is affected
Severity of impact
|
| Given a scenario, implement appropriate backup techniques. | 1.Methodology- Full/normal
Copy - Incremental
- Differential
- Snapshot
- Selective
- Bare metal
- Open file
- Data vs. OS restore
2.Backup media- Linear access
Tape - Random access
Disk
Removable media
Optical media
3.Media and restore best practices- Labeling
- Integrity verification
- Test restorability
- Tape rotation and retention
4.Media storage location- Offsite
- Onsite
- Security considerations
- Environmental considerations
|
Troubleshooting - 20% |
| Explain troubleshooting theory and methodologies. | 1. 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
2. Establish a theory of probable cause (question the obvious)- Determine whether there is a common element of symptom causing multiple problems
3.Test the theory to determine cause- Once theory is confirmed, determine next steps to resolve problem
- If theory is not confirmed, establish new theory or escalate
4. Establish a plan of action to resolve the problem and notify impacted users
5. Implement the solution or escalate as appropriate- 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 new change
6. Verify full system functionality and if applicable implement preventative measures
7.Perform a root cause analysis
8. Document findings, actions and outcomes throughout the process
|
| Given a scenario, effectively troubleshoot hardware problems, selecting the appropriate tools and methods. | 1. Common problems- Failed POST
- Overheating
- Memory failure
- Onboard component failure
- Processor failure
- Incorrect boot sequence
- Expansion card failure
- Operating system not found
- Drive failure
- Power supply failure
- I/O failure
2.Causes of common problems- Third-party components or incompatible components
- Incompatible or incorrect BIOS
- Cooling failure
- Mismatched components
- Backplane failure
3.Environmental issues- Dust
- Humidity
- Temperature
- Power surge/failure
4.Hardware tools- Power supply tester (multimeter)
- Hardware diagnostics
- Compressed air
- ESD equipment
|
| Given a scenario, effectively troubleshoot software problems, selecting the appropriate tools and methods. | 1.Common problems- User unable to log on
- User cannot access resources
- Memory leak
- BSOD/stop
- OS boot failure
- Driver issues
- Runaway process
- Cannot mount drive
- Cannot write to system log
- Slow OS performance
- Patch update failure
- Service failure
- Hangs no shut down
- Users cannot print
2.Cause of common problems- User Account Control (UAC/SUDO)
- Corrupted files
- Lack of hard drive space
- Lack of system resources
- Virtual memory (misconfigured, corrupt)
- Fragmentation
- Print server drivers/services
- Print spooler
3.Software tools- System logs
- Monitoring tools (resource monitor, performance monitor)
- Defragmentation tools
- Disk property tools (usage, free space, volume or drive mapping)
|
| Given a scenario, effectively diagnose network problems, selecting the appropriate tools and methods. | 1.Common problems- Internet connectivity failure
- Email failure
- Resource unavailable
- DHCP server misconfigured
- Non-functional or unreachable
- Destination host unreachable
- Unknown host
- Default gateway misconfigured
- Failure of service provider
- Cannot reach by host name/FQDN
2.Causes of common problems- Improper IP configuration
- VLAN configuration
- Port security
- Improper subnetting
- Component failure
- Incorrect OS route tables
- Bad cables
- Firewall (misconfiguration, hardware failure, software failure)
- Misconfigured NIC, routing/switch issues
- DNS and/or DHCP failure
- Misconfigured hosts file
- IPv4 vs. IPv6 misconfigurations
3.Networking tools- ping
- tracert/traceroute
- ipconfig/ifconfig
- nslookup
- net use/mount
- route
- nbtstat
- netstat
|
| Given a scenario, effectively troubleshoot storage problems, selecting the appropriate tools and methods. | 1.Common problems- Slow file access
- OS not found
- Data not available
- Unsuccessful backup
- Error lights
- 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
2.Causes of common problems- Media failure
- Drive failure
- Controller failure
- HBA failure
- Loose connectors
- Cable problems
- Misconfiguration
- Improper termination
- Corrupt boot sector
- Corrupt file system table
- Array rebuild
- Improper disk partition
- Bad sectors
- Cache battery failure
- Cache turned off
- Insufficient space
- Improper RAID configuration
- Mismatched drives
- Backplane failure
3.Storage tools- Partitioning tools
- Disk management
- RAID array management
- Array management
- System logs
- Net use/mount command
- Monitoring tools
|
| Given a scenario, effectively diagnose security issues, selecting the appropriate tools and methods. | 1.Common problems- File integrity issue
- Privilege escalation
- Applications will not load
- Cannot access network file/shares
- Unable to open files
- Excessive access
- Excessive memory utilization
2.Causes of common problems- Open ports
- Active services
- Inactive services
- Intrusion detection configurations
- Anti-malware configurations
- Local/group policies
- Firewall rules
- Misconfigured permissions
- Virus infection
- Rogue processes/services
3.Security tools- Port scanners
- Sniffers
- Cipher
- Checksums
- Telnet client
- Anti-malware
|
1039 Customer Reviews
