2633990
Description
Flashcards by biericheleonora, updated more than 1 year ago
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Created by biericheleonora
almost 9 years ago
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| Question | Answer |
| Auxport | - standard communication port - transmit/receive data one bit at a time |
| TCP | - Transmission Control Protocol - provides reliable, ordered, and error-checked delivery (segmenting) |
| UDP | - User Datagram Protocol - connectionless datagram service - reduced latency, less reliable |
| OSI model | |
| ISP | - Internet Service Provider |
| DSL | - Digital Subscriber Line - transmitting digital data over telephone lines - mostly ADSL (asymmetric) with 500-800 Mbits broadband |
| Ethernet | - used for LANs and MANs (IEEE 802.3) - data transfer via cable (twisted pair or fiber optic) |
| Frame | - digital data transmission unit - data packet in Layer 2 of the OSI model |
| QoS | - Quality of Service - network delivers services predictable and measurable |
| Circuit-switched networks | - if all circuits are busy, a new call cannot be placed - finite capacity to create new circuits - all parts of single message are transmitted through one circuit |
| Cloud computing | - applications can be accessed over the internet through a subscription |
| Passwords for modes and interfaces | - VTY interface - console interface - privileged EXEC mode |
| VTY interface | - Virtual teletype = command line interface (CLI) - used to facilitate a connection to the daemon via Telnet |
| DHCP | - Dynamic Host Configuration Protocol - provides automatic IP address configuration to hosts on a network |
| Ping 10.1.1.1 | - determining if there is connectivity with the destination device |
| Flow control | - ensures that data is not send too fast - manages the rate of data transmission between two nodes |
| ETS | - Engineering Tool Software |
| HTTP | -Hypertext Transfer Protocol - application protocol for distributed, collaborative, hypermedia information systems - foundation of data communication for the www |
| ARP | - Address Resolution Protocol - used to determine the MAC address of destination host |
| Proprietary protocols | - protocols developed by organizations who have control over their definition and operation |
| IEEE 802.11 | - defines how wireless LANs operate |
| PDU | - Protocol Data Unit - piece of data at any layer of a network model |
| Packet | - PDU at the network layer |
| Frame | - PDU at the data link layer |
| Segment | - PDU at the transport layer |
| TCP/IP encapsulation process | - segments are sent from the transport layer to the internet layer |
| MAC | - Media Access Control address - unique identifier of network interfaces for communication on the physical network segment |
| NIC | - Network Information Center - maintains all administrative data of the domain |
| LAN | - Local Area Network - covering a small local area (home, office) |
| WAN | - Wide Area Network - covering a broad area (regional, national or international telecommunication networks) |
| MAN | - Metropolitan Area Networks - covering rooms, buildings, cities |
| Flash memory | - electronic non-volatile computer storage - can be electronically erased and reprogrammed |
| SSH | - Secure Shell - cryptographic network protocol |
| NVRAM | - Non-Volatile Random-Access Memory |
| Switch | - computer networking device that connects devices together - uses packet switching to receive, process and forward data to the destination device |
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