Term
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Definition
| the layer we see/ interact with. client server: HTTP, FTP,DNS, POP3 |
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Definition
| character encoding, encryption and decryption of info. standardizes data formats (pdf. gif. etc.) |
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Definition
| communication management- manages sessions between devices (start, stop, restart)think dial up |
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Definition
| the post office layer,looks inside of packets.responsible for sending segments to a port. TCP(connection oriented) and UDP (connection-less)DEVICES:ports |
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Definition
| the routing layer, forwarding packets based on destination IP. fragments frames into smaller routable pieces. DEVICES: routers |
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Definition
| the network language, foundation of communication- MAC(media access control) address of Ethernet. DEVICES: switches, bridges, NIC cards |
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Term
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Definition
| signaling, cabling, connectors. run loop back tests, test/replace cables, swap adapter cards. DEVICES: hubs and repeaters |
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Term
| TCP/IP application layer protocols |
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Definition
| (FTP, TFTP, DNS, HTTP(S) VoIP, SMTP, Telnet, BOOTP) |
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Term
| TCP/IP transport layer protocols |
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Definition
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Term
| TCP/IP internet layer protocols |
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Definition
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Term
| TCP/IP network interface (link) protocols |
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Definition
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Term
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Definition
| layer 2, found in the Ethernet frame, identifies the NIC on the host 48 bits long |
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Term
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Definition
| layer 3, used by the router to make forwarding decisions, in the packet. 32 bits long (4 octets) |
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Term
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Definition
| layer 2, what packets are encapsulated in to (packets become frames) ethernet, PPP, frame relay. |
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Term
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Definition
| layer 3, where IP addresses are found, where IP is, what the router reads. |
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Term
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Definition
| layer 2 device, segments collision domains (multiport bridge.) makes decisions based on layer 2 MAC address |
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Term
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Definition
| layer 3 device that connects different networks. makes decisions based on network portion of the layer 3 IP address. determines the best path based on routing protocols or static route. segments broadcast domains |
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Term
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Definition
| switch that also acts as a layer 3 device. does everything a switch can do, plus layer 3 functionality (segments broadcast domains) |
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Term
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Definition
| layer 1 device. multiport repeater. increases the size of a collision domain. (adds more hosts to the collision domain) |
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Term
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Definition
| layer 1. Copper (UYP,STP,Coax) fiber (single mode, multi mode) |
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Term
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Definition
| layer 2 (has the BIA -burned in address)MAC address burned into the NIC |
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Term
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Definition
| layer 2 device that segments part of the network based on MAC addresses. Been replaced by the switch. |
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Term
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Definition
| A: 1-126 // B: 128-191 // C:192-223 // D: multicast 224-239 // E: experimental 240-255 |
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Term
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Definition
| A: 10.0.0.0-10.255.255.255 // B: 172.16.0.0-172.31.255.255 // C: 192.168.0.0-192.168.255.255 |
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Term
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Definition
| classless interdomain routing removed the restrictions created by classfull subnet masks. dash notation (192.168.1.1 /23) |
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Term
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Definition
| IPv4: 32 bit format, 4 octets dotted decimal. // IPv6 128 bits long hex format |
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