CompTIA Network+ Certification Exam (N10-008日本語版) : N10-008日本語

  • Exam Code: N10-008J
  • Exam Name: CompTIA Network+ Certification Exam (N10-008日本語版)
  • Updated: Sep 06, 2025     Q & A: 1075 Questions and Answers

PDF Version Demo
PDF Price: $69.99

PC Test Engine
Software Price: $69.99

CompTIA N10-008日本語 Value Pack (Frequently Bought Together)

N10-008日本語 Online Test Engine
  • If you purchase CompTIA N10-008日本語 Value Pack, you will also own the free online test engine.
  • PDF Version + PC Test Engine + Online Test Engine
  • Value Pack Total: $139.98  $89.99
  •   Save 49%

About CompTIA N10-008日本語 Exam

Well-organized layout

It's usual for people to pursue a beautiful and ordered study guide. You must be curious about the arrangement of the CompTIA Network+ Certification Exam (N10-008日本語版) practice exam contents. We can tell you that all the type setting is logical and beautiful, which totally accords with your usual reading habits. Our experienced workers have invested a lot of time to design user interface. Many schemes have been made use of. Finally, they have pushed out the ultimate version of the N10-008日本語 exam engine. Learning also should be an enjoyable process of knowledge. That's our purpose of design. Once you enter the user interface of the CompTIA Network+ Certification Exam (N10-008日本語版) updated torrent, you are able to feel the beauty. In return, it will be conducive to learn the knowledge.

After purchase, Instant Download: Upon successful payment, Our systems will automatically send the product you have purchased to your mailbox by email. (If not received within 12 hours, please contact us. Note: don't forget to check your spam.)

The advantages of taking CompTIA N10-008 Exam

CompTIA N10-008 exams are a great way to get the knowledge and experience needed to become a certified expert.

  • Knowledge and Skill Enhancement The certification exams will help provide you with the knowledge and skill enhancement necessary to be successful in your IT career.

  • Another advantage of taking CompTIA N10-008 exams is that they are easy. You can do them anywhere you have access to the Internet, so even if you're at work or in class.

  • Career Advancement Utilizing the information that you learn from the exam will help you advance your career by making you more competitive for advancements and promotions.

  • The first advantage of taking CompTIA N10-008 exams is that it gives you more control over your learning process. By taking the time to study and research, you will have a better understanding of what the subject-matter is all about.

  • Confidence in Your Abilities Passing an exam will help boost your confidence in your abilities because you will have proven what you are capable of accomplishing.

  • Higher Earning Potential With enhanced knowledge and skills comes the ability to earn more money.

Reference: https://www.comptia.org/training/books/network-n10-008-study-guide

Extra service for one year

Have you ever heard of extra service of the CompTIA Network+ Certification Exam (N10-008日本語版) Prep vce? Perhaps you think it hard to believe. Our company truly has such service for our customers. If you have bought our company's CompTIA Network+ training material, you can enjoy our free extra service for one year. The service consists of free renewal and consultation of the CompTIA Network+ Certification Exam (N10-008日本語版) test engine. At present, not so many companies can provide value-added services of the N10-008日本語 latest questions because of lack of money. Actually, after sale service is as important as presale service. It is not easy to serve customer well. We will try our best to advance anyway. Thanks to our customer's supports, our CompTIA prep material can make such accomplishments.

Convenient to revision

Revision is not an easy process for a learner. As for this, our PDF version N10-008日本語 updated material is advantageous to review because you can print the contents on papers and then take notes. As we all know, revision is also a significant part during the preparation for the CompTIA Network+ Certification Exam (N10-008日本語版) exam. At least, you must have a clear understanding for your deficiency. Then great attention should be paid to repetitive training on our CompTIA Network+ test engine. That is the crucial part to pass the N10-008日本語 exam. The notes will help you comprehend easily. Also, you must invest time to review. As time going by, you will have a good command of the weak point of the CompTIA Network+ Certification Exam (N10-008日本語版) training material knowledge. Nothing is too difficult if you put your heart into it.

Due to the fierce competition in the job market, most people are keen on getting more certificates in order to stand out. Some people just complain and do nothing. In fact, the most useful solution is to face the problem directly and fight back. Recently, the most popular one is obtaining the CompTIA Network+ Certification Exam (N10-008日本語版) certificate. Only little people can pass the N10-008日本語 exam. Now, our company has developed the CompTIA Network+ Certification Exam (N10-008日本語版) certificate for you to learn, which can add more passing rate. In fact, we surly guarantee you to pass the exam if you practice on our study guide. You will have the wind at your back. We are responsible for every customer. Try to believe us.

Free Download N10-008日本語 exam dumps pdf

New Way To Prepare For Your CompTIA N10-008 Exam

Read Our CompTIA N10-008 Exam Guide That Will Help You Pass in First Try

Is CompTIA N10-008 certification worth it? A Study Guide to help people decide if they should get the certification

You may be wondering what exactly CompTIA Network+ is. Well, it's an internationally recognized certification that validates the abilities of network professionals. The exam is administered by CompTIA and is designated as Exam N10-008. This comprehensive test is intended for individuals wishing to attain CompTIA Network+ certification. The test also serves as an excellent opportunity to demonstrate the knowledge and skills of entry-level IT professionals. CompTIA Network+ certification is widely considered the entry-level standard for a career in IT networking. Interface desktop switch port address layer two and data link layer.

It is a vendor-neutral networking certification that is trusted around the world. Network + certified professionals can design and implement functional networks, identify benefits and drawbacks of existing network configurations, implement network security, troubleshoot network problems, and support the creation of virtualized networks. Optic cable for local subnet engine device and distribution configured plan theory. Package for correct effective simulator and engineer physical locations. CompTIA N10-008 Dumps help you to pass the actual exam and save your time.

If you're interested in becoming CompTIA Network+ certified, the best place to start is with Exam N10-008. This article will guide what you can expect from this exam, so read on to find out more!

Things to do before you decide to take the CompTIA N10-008 Exam

There are a few things to do before you decide to take the CompTIA N10-008 Exam. These tasks will help you gain more confidence when taking the exam and will also help you prepare for it.

Here are some of the things you should do before deciding to take the CompTIA N10-008 Exam:

  • The second thing is to read up on the tools and techniques commonly used by network professionals. A good place to start is with a list of frequently used Linux commands, since these are essential for your success as an IT professional.

  • The first thing is to review the exam objectives that includes a review of all the topics covered on the test and what percentage of questions will be asked about each. This information is available on CompTIA's website and in a number of books and other study materials.

Check out these free resources for test prep and practice exams. You need to make sure that you have the right study materials. Review sample questions and study materials provided by the CompTIA Network+ certification site. CompTIA N10-008 Dumps is the ideal solution for you. The most important things you are required to do before deciding to take the CompTIA N10-008 Exam is to read through the Network+ objectives list that has been given by CompTIA.

Get an idea of how much time you need to study. You can use your own timetable or an online calculator to figure out how much time you need to spend studying. Make sure that you know what your strengths and weaknesses are so that you can focus on them during the test. Get a good night's sleep before taking the test. Don't skip breakfast or lunch as this can lead to fatigue during the test.

CompTIA N10-008 Exam Syllabus Topics:

TopicDetails

Networking Fundamentals - 24%

Compare and contrast the Open Systems Interconnection (OSI) model layers and encapsulation concepts.- OSI model
  • Layer 1 – Physical
  • Layer 2 – Data link
  • Layer 3 – Network
  • Layer 4 – Transport
  • Layer 5 – Session
  • Layer 6 – Presentation
  • Layer 7 – Application

- Data encapsulation and decapsulation within the OSI model context

  • Ethernet header
  • Internet Protocol (IP) header
  • Transmission Control Protocol (TCP)/User Datagram Protocol (UDP) headers
  • TCP flags
  • Payload
  • Maximum transmission unit (MTU)
Explain the characteristics of network topologies and network types.- Mesh
- Star/hub-and-spoke
- Bus
- Ring
- Hybrid
- Network types and characteristics
  • Peer-to-peer
  • Client-server
  • Local area network (LAN)
  • Metropolitan area network (MAN)
  • Wide area network (WAN)
  • Wireless local area network (WLAN)
  • Personal area network (PAN)
  • Campus area network (CAN)
  • Storage area network (SAN)
  • Software-defined wide area network (SDWAN)
  • Multiprotocol label switching (MPLS)
  • Multipoint generic routing encapsulation (mGRE)

- Service-related entry point

  • Demarcation point
  • Smartjack

- Virtual network concepts

  • vSwitch
  • Virtual network interface card (vNIC)
  • Network function virtualization (NFV)
  • Hypervisor

- Provider links

  • Satellite
  • Digital subscriber line (DSL)
  • Cable
  • Leased line
  • Metro-optical
Summarize the types of cables and connectors and explain which is the appropriate type for a solution.- Copper
  • Twisted pair
    1. Cat 5
    2. Cat 5e
    3. Cat 6
    4. Cat 6a
    5. Cat 7
    6. Cat 8
  • Coaxial/RG-6
  • Twinaxial
  • Termination standards
    1. TIA/EIA-568A
    2. TIA/EIA-568B

- Fiber

  • Single-mode
  • Multimode

- Connector types

  • Local connector (LC), straight tip (ST), subscriber connector (SC), mechanical transfer (MT), registered jack (RJ)
    1. Angled physical contact (APC)
    2. Ultra-physical contact (UPC)
  • RJ11
  • RJ45
  • F-type connector
  • Transceivers/media converters
  • Transceiver type
    1. Small form-factor pluggable (SFP)
    2. Enhanced form-factor pluggable (SFP+)
    3. Quad small form-factor pluggable (QSFP)
    4. Enhanced quad small form-factor pluggable (QSFP+)

- Cable management

  • Patch panel/patch bay
  • Fiber distribution panel
  • Punchdown block
    1. 66
    2. 110
    3. Krone
    4. Bix

- Ethernet standards

  • Copper
    1. 10BASE-T
    2. 100BASE-TX
    3. 1000BASE-T
    4. 10GBASE-T
    5. 40GBASE-T
  • Fiber
    1. 100BASE-FX
    2 .100BASE-SX
    3. 1000BASE-SX
    4. 1000BASE-LX
    5. 10GBASE-SR
    6. 10GBASE-LR
    7. Coarse wavelength division multiplexing (CWDM)
    8. Dense wavelength division multiplexing (DWDM)
    9. Bidirectional wavelength division multiplexing (WDM)
Given a scenario, configure a subnet and use appropriate IP addressing schemes.- Public vs. private
  • RFC1918
  • Network address translation (NAT)
  • Port address translation (PAT)

- IPv4 vs. IPv6

  • Automatic Private IP Addressing (APIPA)
  • Extended unique identifier (EUI-64)
  • Multicast
  • Unicast
  • Anycast
  • Broadcast
  • Link local
  • Loopback
  • Default gateway

- IPv4 subnetting

  • Classless (variable-length subnet mask)
  • Classful
    1. A
    2. B
    3. C
    4. D
    5. E
  • Classless Inter-Domain Routing (CIDR) notation

- IPv6 concepts

  • Tunneling
  • Dual stack
  • Shorthand notation
  • Router advertisement
  • Stateless address autoconfiguration (SLAAC)

- Virtual IP (VIP)
- Subinterfaces

Explain common ports and protocols, their application, and encrypted alternatives.- Protocol sand Ports
  • File Transfer Protocol (FTP) 20/21
  • Secure Shell (SSH) 22
  • Secure File Transfer Protocol (SFTP) 22
  • Telnet 23
  • Simple Mail Transfer Protocol (SMTP) 25
  • Domain Name System (DNS) 53
  • Dynamic Host Configuration Protocol (DHCP) 67/68
  • Trivial File Transfer Protocol (TFTP) 69
  • Hypertext Transfer Protocol (HTTP) 80
  • Post Office Protocol v3 (POP3) 110
  • Network Time Protocol (NTP) 123
  • Internet Message Access Protocol (IMAP) 143
  • Simple Network Management Protocol (SNMP) 161/162
  • Lightweight Directory Access Protocol (LDAP) 389
  • Hypertext Transfer Protocol Secure (HTTPS) [Secure Sockets Layer (SSL)] 443
  • HTTPS [Transport Layer Security (TLS)] 443
  • Server Message Block (SMB) 445
  • Syslog 514
  • SMTP TLS 587
  • Lightweight Directory Access Protocol (over SSL) (LDAPS) 636
  • IMAP over SSL 993
  • POP3 over SSL 995
  • Structured Query Language (SQL) Server 1433
  • SQLnet 1521
  • MySQL 3306
  • Remote Desktop Protocol (RDP) 3389
  • Session Initiation Protocol (SIP) 5060/5061
  • IP protocol types
    1. Internet Control Message Protocol (ICMP)
    2. TCP
    3. UDP
    4. Generic Routing Encapsulation (GRE)
    5. Internet Protocol Security (IPSec)
    - Authentication Header (AH)/Encapsulating Security Payload (ESP)

- Connectionless vs. connection-oriented

Explain the use and purpose of network services.- DHCP
  • Scope
  • Exclusion ranges
  • Reservation
  • Dynamic assignment
  • Static assignment
  • Lease time
  • Scope options
  • Available leases
  • DHCP relay
  • IP helper/UDP forwarding

- DNS

  • Record types
    1. Address (A vs. AAAA)
    2. Canonical name (CNAME)
    3. Mail exchange (MX)
    4. Start of authority (SOA)
    5. Pointer (PTR)
    6. Text (TXT)
    7. Service (SRV)
    8. Name server (NS)
  • Global hierarchy
    1. Root DNS servers
  • Internal vs. external
  • Zone transfers
  • Authoritative name servers
  • Time to live (TTL)
  • DNS caching
  • Reverse DNS/reverse lookup/forward lookup
  • Recursive lookup/iterative lookup

- NTP

  • Stratum
  • Clients
  • Servers
Explain basic corporate and datacenter network architecture.- Three-tiered
  • Core
  • Distribution/aggregation layer
  • Access/edge

- Software-defined networking

  • Application layer
  • Control layer
  • Infrastructure layer
  • Management plane

- Spine and leaf

  • Software-defined network
  • Top-of-rack switching
  • Backbone

- Traffic flows

  • North-South
  • East-West

- Branch office vs. on-premises datacenter vs. colocation
- Storage area networks

  • Connection types
    1. Fibre Channel over Ethernet (FCoE)
    2. Fibre Channel
    3. Internet Small Computer Systems Interface (iSCSI)
Summarize cloud concepts and connectivity options.- Deployment models
  • Public
  • Private
  • Hybrid
  • Community

- Service models

  • Software as a service (SaaS)
  • Infrastructure as a service (IaaS)
  • Platform as a service (PaaS)
  • Desktop as a service (DaaS)

- Infrastructure as code

  • Automation/orchestration

- Connectivity options

  • Virtual private network (VPN)
  • Private-direct connection to cloud provider

- Multitenancy
- Elasticity
- Scalability
- Security implications

Network Implementations - 19%

Compare and contrast various devices, their features, and their appropriate placement on the network.- Networking devices
  • Layer 2 switch
  • Layer 3 capable switch
  • Router
  • Hub
  • Access point
  • Bridge
  • Wireless LAN controller
  • Load balancer
  • Proxy server
  • Cable modem
  • DSL modem
  • Repeater
  • Voice gateway
  • Media converter
  • Intrusion prevention system (IPS)/intrusion detection system (IDS) device
  • Firewall
  • VPN headend

- Networked devices

  • Voice over Internet Protocol (VoIP) phone
  • Printer
  • Physical access control devices
  • Cameras
  • Heating, ventilation, and air conditioning (HVAC) sensors
  • Internet of Things (IoT)
    1. Refrigerator
    2. Smart speakers
    3. Smart thermostats
    4. Smart doorbells
  • Industrial control systems/supervisory control and data acquisition (SCADA)
Compare and contrast routing technologies and bandwidth management concepts.- Routing
  • Dynamic routing
    1. Protocols [Routing Internet Protocol (RIP), Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), Border Gateway Protocol (BGP)]
    2. Link state vs. distance vector vs. hybrid
  • Static routing
  • Default route
  • Administrative distance
  • Exterior vs. interior
  • Time to live

- Bandwidth management

  • Traffic shaping
  • Quality of service (QoS)
Given a scenario, configure and deploy common Ethernet switching features.- Data virtual local area network (VLAN)
- Voice VLAN
- Port configurations
  • Port tagging/802.1Q
  • Port aggregation
    1. Link Aggregation Control Protocol (LACP)
  • Duplex
  • Speed
  • Flow control
  • Port mirroring
  • Port security
  • Jumbo frames
  • Auto-medium-dependent interface crossover (MDI-X)

- Media access control (MAC) address tables
- Power over Ethernet (PoE)/Power over Ethernet plus (PoE+)
- Spanning Tree Protocol
- Carrier-sense multiple access with collision detection (CSMA/CD)
- Address Resolution Protocol (ARP)
- Neighbor Discovery Protocol

Given a scenario, install and configure the appropriate wireless standards and technologies.- 802.11 standards
  • a
  • b
  • g
  • n (WiFi 4)
  • ac (WiFi 5)
  • ax (WiFi 6)

- Frequencies and range

  • 2.4GHz
  • 5GHz

- Channels

  • Regulatory impacts

- Channel bonding
- Service set identifier (SSID)

  • Basic service set
  • Extended service set
  • Independent basic service set (Ad-hoc)
  • Roaming

- Antenna types

  • Omni
  • Directional

- Encryption standards

  • WiFi Protected Access (WPA)/WPA2 Personal [Advanced Encryption Standard (AES)/Temporal Key Integrity Protocol (TKIP)]
  • WPA/WPA2 Enterprise (AES/TKIP)

- Cellular technologies

  • Code-division multiple access (CDMA)
  • Global System for Mobile Communications (GSM)
  • Long-Term Evolution (LTE)
  • 3G, 4G, 5G

- Multiple input, multiple output (MIMO) and multi-user MIMO (MU-MIMO)

Network Operations - 16%

Given a scenario, use the appropriate statistics and sensors to ensure network availability.- Performance metrics/sensors
  • Device/chassis
    1. Temperature
    2. Central processing unit (CPU) usage
    3. Memory
  • Network metrics
    1. Bandwidth
    2. Latency
    3. Jitter

- SNMP

  • Traps
  • Object identifiers (OIDs)
  • Management information bases (MIBs)

- Network device logs

  • Log reviews
    1. Traffic logs
    2. Audit logs
    3. Syslog
  • Logging levels/severity levels

- Interface statistics/status

  • Link state (up/down)
  • Speed/duplex
  • Send/receive traffic
  • Cyclic redundancy checks (CRCs)
  • Protocol packet and byte counts

- Interface errors or alerts

  • CRC errors
  • Giants
  • Runts
  • Encapsulation errors

- Environmental factors and sensors

  • Temperature
  • Humidity
  • Electrical
  • Flooding

- Baselines
- NetFlow data
- Uptime/downtime

Explain the purpose of organizational documents and policies.- Plans and procedures
  • Change management
  • Incident response plan
  • Disaster recovery plan
  • Business continuity plan
  • System life cycle
  • Standard operating procedures

- Hardening and security policies

  • Password policy
  • Acceptable use policy
  • Bring your own device (BYOD) policy
  • Remote access policy
  • Onboarding and offboarding policy
  • Security policy
  • Data loss prevention

- Common documentation

  • Physical network diagram
    1. Floor plan
    2. Rack diagram
    3. Intermediate distribution frame (IDF)/main distribution frame (MDF) documentation
  • Logical network diagram
  • Wiring diagram
  • Site survey report
  • Audit and assessment report
  • Baseline configurations

- Common agreements

  • Non-disclosure agreement (NDA)
  • Service-level agreement (SLA)
  • Memorandum of understanding (MOU)
Explain high availability and disaster recovery concepts and summarize which is the best solution.- Load balancing
- Multipathing
- Network interface card (NIC) teaming
- Redundant hardware/clusters
  • Switches
  • Routers
  • Firewalls

- Facilities and infrastructure support

  • Uninterruptible power supply (UPS)
  • Power distribution units (PDUs)
  • Generator
  • HVAC
  • Fire suppression

- Redundancy and high availability (HA) concepts

  • Cold site
  • Warm site
  • Hot site
  • Cloud site
  • Active-active vs. active-passive
    1. Multiple Internet service providers (ISPs)/diverse paths
    2. Virtual Router Redundancy Protocol (VRRP)/First Hop Redundancy Protocol (FHRP)
  • Mean time to repair (MTTR)
  • Mean time between failure (MTBF)
  • Recovery time objective (RTO)
  • Recovery point objective (RPO)

- Network device backup/restore

  • State
  • Configuration

Network Security - 19%

Explain common security concepts.- Confidentiality, integrity, availability (CIA)
- Threats
  • Internal
  • External

- Vulnerabilities

  • Common vulnerabilities and exposures (CVE)
  • Zero-day

- Exploits
- Least privilege
- Role-based access
- Zero Trust
- Defense in depth

  • Network segmentation enforcement
  • Screened subnet [previously known as demilitarized zone (DMZ)]
  • Separation of duties
  • Network access control
  • Honeypot

- Authentication methods

  • Multifactor
  • Terminal Access Controller Access-Control System Plus (TACACS+)
  • Single sign-on (SSO)
  • Remote Authentication Dial-in User Service (RADIUS)
  • LDAP
  • Kerberos
  • Local authentication
  • 802.1X
  • Extensible Authentication Protocol (EAP)

- Risk Management

  • Security risk assessments
    1. Threat assessment
    2. Vulnerability assessment
    3. Penetration testing
    4. Posture assessment
  • Business risk assessments
    1. Process assessment
    2. Vendor assessment

- Security information and event management (SIEM)

Compare and contrast common types of attacks.- Technology-based
  • Denial-of-service (DoS)/distributed denial-of-service (DDoS)
    1. Botnet/command and control
  • On-path attack (previously known as man-in-the-middle attack)
  • DNS poisoning
  • VLAN hopping
  • ARP spoofing
  • Rogue DHCP
  • Rogue access point (AP)
  • Evil twin
  • Ransomware
  • Password attacks
    1. Brute-force
    2. Dictionary
  • MAC spoofing
  • IP spoofing
  • Deauthentication
  • Malware

- Human and environmental

  • Social engineering
    1. Phishing
    2. Tailgating
    3. Piggybacking
    4. Shoulder surfing
Given a scenario, apply network hardening techniques.- Best practices
  • Secure SNMP
  • Router Advertisement (RA) Guard
  • Port security
  • Dynamic ARP inspection
  • Control plane policing
  • Private VLANs
  • Disable unneeded switchports
  • Disable unneeded network services
  • Change default passwords
  • Password complexity/length
  • Enable DHCP snooping
  • Change default VLAN
  • Patch and firmware management
  • Access control list
  • Role-based access
  • Firewall rules
    1. Explicit deny
    2. Implicit deny

- Wireless security

  • MAC filtering
  • Antenna placement
  • Power levels
  • Wireless client isolation
  • Guest network isolation
  • Preshared keys (PSKs)
  • EAP
  • Geofencing
  • Captive portal

- IoT access considerations

Compare and contrast remote access methods and security implications.- Site-to-site VPN
- Client-to-site VPN
  • Clientless VPN
  • Split tunnel vs. full tunnel

- Remote desktop connection
- Remote desktop gateway
- SSH
- Virtual network computing (VNC)
- Virtual desktop
- Authentication and authorization considerations
- In-band vs. out-of-band management

Explain the importance of physical security.- Detection methods
  • Camera
  • Motion detection
  • Asset tags
  • Tamper detection

- Prevention methods

  • Employee training
  • Access control hardware
    1. Badge readers
    2. Biometrics
  • Locking racks
  • Locking cabinets
  • Access control vestibule (previously known as a mantrap)
  • Smart lockers

- Asset disposal

Network Troubleshooting - 22%

Explain the network troubleshooting methodology.- Identify the problem
  • Gather information
  • Question users
  • Identify symptoms
  • Determine if anything has changed
  • Duplicate the problem, if possible
  • Approach multiple problems individually

- Establish a theory of probable cause

  • Question the obvious
  • Consider multiple approaches
    1. Top-to-bottom/bottom-to-top OSI model
    2. Divide and conquer

- Test the theory to determine the cause

  • If the theory is confirmed, determine the next steps to resolve the problem
  • If the theory is not confirmed, reestablish a new theory or escalate

- Establish a plan of action to resolve the problem and identify potential effects
- Implement the solution or escalate as necessary
- Verify full system functionality and, if applicable, implement preventive measures
- Document findings, actions, outcomes, and lessons learned

Given a scenario, troubleshoot common cable connectivity issues and select the appropriate tools.- Specifications and limitations
  • Throughput
  • Speed
  • Distance

- Cable considerations

  • Shielded and unshielded
  • Plenum and riser-rated

- Cable application

  • Rollover cable/console cable
  • Crossover cable
  • Power over Ethernet

- Common issues

  • Attenuation
  • Interference
  • Decibel (dB) loss
  • Incorrect pinout
  • Bad ports
  • Open/short
  • Light-emitting diode (LED) status indicators
  • Incorrect transceivers
  • Duplexing issues
  • Transmit and receive (TX/RX) reversed
  • Dirty optical cables

- Common tools

  • Cable crimper
  • Punchdown tool
  • Tone generator
  • Loopback adapter
  • Optical time-domain reflectometer (OTDR)
  • Multimeter
  • Cable tester
  • Wire map
  • Tap
  • Fusion splicers
  • Spectrum analyzers
  • Snips/cutters
  • Cable stripper
  • Fiber light meter
Given a scenario, use the appropriate network software tools and commands.- Software tools
  • WiFi analyzer
  • Protocol analyzer/packet capture
  • Bandwidth speed tester
  • Port scanner
  • iperf
  • NetFlow analyzers
  • Trivial File Transfer Protocol (TFTP) server
  • Terminal emulator
  • IP scanner

- Command line tool

  • ping
  • ipconfig/ifconfig/ip
  • nslookup/dig
  • traceroute/tracert
  • arp
  • netstat
  • hostname
  • route
  • telnet
  • tcpdump
  • nmap

- Basic network platform commands

  • show interface
  • show config
  • show route
Given a scenario, troubleshoot common wireless connectivity issues.- Specifications and limitations
  • Throughput
  • Speed
  • Distance
  • Received signal strength indication (RSSI) signal strength
  • Effective isotropic radiated power (EIRP)/power settings

- Considerations

  • Antennas
    1. Placement
    2. Type
    3. Polarization
  • Channel utilization
  • AP association time
  • Site survey

- Common issues

  • Interference
    1. Channel overlap
  • Antenna cable attenuation/signal loss
  • RF attenuation/signal loss
  • Wrong SSID
  • Incorrect passphrase
  • Encryption protocol mismatch
  • Insufficient wireless coverage
  • Captive portal issues
  • Client disassociation issues
Given a scenario, troubleshoot general networking issues.- Considerations
  • Device configuration review
  • Routing tables
  • Interface status
  • VLAN assignment
  • Network performance baselines

- Common issues

  • Collisions
  • Broadcast storm
  • Duplicate MAC address
  • Duplicate IP address
  • Multicast flooding
  • Asymmetrical routing
  • Switching loops
  • Routing loops
  • Rogue DHCP server
  • DHCP scope exhaustion
  • IP setting issues
  • Missing route
  • Low optical link budget
  • Certificate issues
  • Hardware failure
  • Host-based/network-based firewall settings
  • Blocked services, ports, or addresses
  • Incorrect VLAN
  • DNS issues
  • NTP issues
  • BYOD challenges
  • Licensed feature issues
  • Network performance issues

What Clients Say About Us

LEAVE A REPLY

Your email address will not be published. Required fields are marked *

Why Choose Us