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64 Cards in this Set
- Front
- Back
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Network segmentation |
Breaking down larger networks into smaller pieces |
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Broadcast domain |
Set of all devices on a network segment |
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WAN interface |
V.35 |
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Collision domain |
Network segment where all devices are forced to pay attention |
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Reference model |
Conceptual blueprint of how communications should take place |
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Layers |
Division of required processes into logical groupings |
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Binding |
Process for a layer should only be concerned with that layer's functions |
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OSI Upper layers |
Application, presentation, session |
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OSI Lower Layers |
Transport, network, data, physical |
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NMS |
Network Management System |
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Simplex Session |
One way communication |
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Half duplex session |
Two way communication, but one at a time. |
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Full duplex session |
Two ways, at the same time with interruptions |
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Call setup |
3 way handshake |
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Buffer |
Stores excess datagrams. Transport layer |
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Flow control |
Prevents buffer overflow at transport layer |
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Types of flow control |
Buffering, windowing, congestion |
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Windowing |
Allowing multiple packets to be sent with acknowledging each individual packet |
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Positive acknowledgement with retransmission |
Requires receiving machine to acknowledge that proper amount of data was received before next segment |
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Session multiplexing |
Transport and session layer separate data e.g. Multiple browser links |
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Data frame |
Formatted message at layer 2 that adds hardware destination and source address |
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Data link sublayers |
MAC and LLC |
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MAC |
Media access control |
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LLC |
Logical link control |
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ASIC |
Application specific integrated circuit |
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Transparent bridging |
Device will only forward frames or limit frames to correct segment |
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Filter table |
Layer 2 version of a router table |
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State transitions |
Layer 1 voltage changes representing binary |
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DTE |
Data terminal equipment - attached device |
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DCE |
Data communication equipment - located at service provider |
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CSU/DSU |
Channel service unit/data service unit - used to access DTE services |
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AP |
Wireless access point |
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CSMA/CD |
Carrier sense multiple access with collision detection |
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Backoff |
Retransmission delay after a collision |
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OUI |
Organizationally unique identifier. 3 bytes |
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CRC |
Cyclical redundancy check |
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SFD |
Start frame delimiter |
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DA |
Destination address |
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SA |
Source address |
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LSB |
Least significant bit |
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FCS |
Frame check sequence. Stores CRC answer |
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10Base-T standard |
IEEE 802.3 |
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100Base Standard |
IEEE 802.3u |
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1000Base-T Standard |
IEEE 802.3ab |
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1000Base Standard |
IEEE 802.3z |
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1000Base-ZX standard |
Cisco standard |
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10GBase-T standard |
IEEE 802.3an |
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Cable that connects pins 1,2,3 and 6 to corresponding pins |
Straight through cable |
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Cable that connects pins 1-3, 2-6 |
Crossover cable |
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Cable that flips pin connections |
Rolled cable |
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PDUs |
Protocol data units |
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Socket |
Virtual circuit with source and destination ports and IP addresses |
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Enable command |
How to enter privileged mode |
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Disable command |
How to exit privileged mode |
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Config t command |
How to enter global configuration mode |
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Interface command |
To make changes to an interface from global configuration mode |
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Line command |
To configure user mode passwords |
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ip access-list standard command |
Used to configure access control lists |
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Sh history command |
Shows last 20 commands |
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Sh terminal command |
Shows terminal configurations |
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hostname command |
Sets hostname of device |
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Service password-encryption command |
Encrypt passwords that are not encrypted by default |
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Description command |
Add description to interface |
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show ip interface brief command |
Shows interfaces on device |
