CompTIA Network+ Notes

By: Raul Pop | Related Course: CompTIA Network+
Join Cybrary

Module 1.1 - OSI and TCP/IP Models (Click to View Notes)

Layer 2 -Data link-Access-Transfer From Point->Point+MAC Address-Package bits/Data into frames-Need to map this Point->Point [view]

Module 2.3 (Click to View Notes)

Options(DNS,Suffixes)-Options are coded values-Provide Network settings:050-IP Address051-Lease Time006-DNS Servers003-Default Gateway001-Subnet mask015-Domain Name(suffix) [view]

Module 2.4 (Click to View Notes)

1)Interference-from objects/signal interfacesignal going in/outintermittent connectivty -connectingcloser to WAPmove WAP Higher/more centralizedDifferent Antenna5 Ghz FrequencyCheck for interference w/ softwareAdd access points 2) Signal Strength-T [view]

Module 2.5 (Click to View Notes)

1) Wrong Subnet mask-Subnet indicates net portion vs host-Can throw off an addressing scheme-Check CIDR Notation 2) Wrong Gateway-Device sends packets for other nets-Typically Router-Routers only address direct packets 3) Duplicate IP Address-Windo [view]

Module 1.2 - Devices & Protocols in Relation to OSI Model (Click to View Notes)

Layer 1 -Physical-touch,measure,see Layer 2-Data link-provide the point to point connectivity Layer 3-Network-IP Addressing/Routing Layer 4-Transport-TCP/UDP Layer 5-Session-Connection Management Layer 6-Presentation-Formatting data Layer 7-App [view]

Module 1.3 (Click to View Notes)

Multicast-IPv4: Sending 1->Many-IPv6 : 1->1 Many(Multicast groups,to replace broadcast) Unicast :-IPv4 1=>1-IPv6 Link Local,Site Local,Unique Local,Global Unicast Broadcast/Anycast:IPv4:Broadcast to all in Broadcast DomainIPv6: Anycast=> [view]

Module 1.4 (Click to View Notes)

Routing Metrics-Qualities used to determine best path+Hop Count=>Trace Router+MTM-Maximum transmission unit+Lasts-Realibility,foundtrip,etc+Latency-amount of delay on this link Linkstate/Distance vector/Hybrid Link state-$$ last based-Multiple f [view]

Module 1.5 and 1.6 (Click to View Notes)

a) SIP-5060-Session Initiation Protocol-Initiates a session but no data-Indicates to remote computer to open port for communication b) RTP-varies depending on customization-Real Time Protocol-Stream Video,Audio-Detects out of Segment Arrival Used f [view]

Module 1.7 (Click to View Notes)

A-Address Record(forward lookups) Address AddressCNAME-Canonical fake sales.microsoftt.local)MX-Mail ExchangeMail server for the domain.PTR-Poin [view]

Module 1.8 (Click to View Notes)

Documents findings actions outcomes-Should be documenting from startsymptomscausestroubleshootingdiscovered issueresolution-Write documentation clearly-Avoid skipping steps/slang or acronyms [view]

Module 1.9 (Click to View Notes)

Network as a service a) Offsite Network-just need a computer,link to ISP and Naas-Hosts apps,data,services etc. Pros-Less management-Business continuity/backups-Powerfull resources for less $$-Scalable Cons-Less Control/Security Conceps-Does cost- [view]

Module 2.1 (Click to View Notes)

1) Managed-additional control of data flow/configurations-web interface/special cable 2) Unmanaged-Plug and Play-No additional functionality-Managed switch may have a button 3) Interface Configuration-Full Duplex-Both Directions-Half Duplex-One at [view]

Join Cybrary

Our Revolution

We believe Cyber Security training should be free, for everyone, FOREVER. Everyone, everywhere, deserves the OPPORTUNITY to learn, begin and grow a career in this fascinating field. Therefore, Cybrary is a free community where people, companies and training come together to give everyone the ability to collaborate in an open source way that is revolutionizing the cyber security educational experience.

Support Cybrary

Donate Here to Get This Month's Donor Badge


We recommend always using caution when following any link

Are you sure you want to continue?