1.1-1.9 Flashcards
What is it?
(All People Seem To Need Data Processing)
Comptuer network standard developed by the ISO and ITU-T
Physical layer
-Over what?
transmits and receives bits of information
-Ethernet, DSL, ISDN, RS-232,DOCSIS
Data link
-Examples
transmits frames to nodes(computers)
-MAC, PPP,ATM, MPLS, IEEE, 802.2, L2TP, LLDP
Network
-Examples
Packets, and managing a network, Ip, routing and traffic control
-IPv4, Ipv6,IPsec, ICMP
Transport
transmission of network segments between network entities, with segmenting , multiplexing and acknowledgment
-TCP and UDP
Session
-Ex
Session management and continous exchange of data between 2 nodes
-TLS, FTP,HTTP,HTTPS, SMTP,Telent, SCP,RPC
Presentation
-Ex
Translate data between network services and applications
-JSON,XML, HTML, S/MIME, CSS, GIF
Application
Host applicaitons and API
-SSH,SNMP, Web Service ,REST, SOAP
4 layers(App At InLink)
Application, Transport, Internet, Link
Application
Layer 5-7 OSI
Layer 4 OSI
Layer 3 OSI
Layer 1-2 OSI
Dynamic Host Configuration Protocol
-What kind of protocol is DHCP?
Provides dynamic assignment of IP addresses
-Client server protocol, allowing automatic setup of a network config to client device
BOOTP Protocol
Legacy protocol for assigning dynamic IP addresses
Used in simple networks
What is it’s server address range?
-Leasing(describe)
- 10.1.10 to 10.10.1.254
- Renting out an IP address for a certain time
What does it use by default?
UDP as transport protocol on port 67, and port 68 for a client
Routes that are dynamically learned using an IP protocol exchange
-What does this help build?
protocol that allows the exchange of information among Layer 3 devices
-routing table
Ex
Operate within the org’s boundary
-Open Short Path First(OSPF), (IS-IS) Intermediate System to Intermediate System ,Enhanced Interior Gateway Protocol, or EIGRP,Routing Information Protocol
Autonomous System(AS)
-Collection of routing information under the administration of a single organization entity
AS Number
IGP’s run within them
Run across AS boundaries
Distance Vector in RIPv2,
Link-State in OSPF or IS-IS
Advanced Distance Sector
number is distance between a router and a specific network