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| Address resolution protocol - an arp request is a broadcast asking for the mac address corresponding to a known ip address, an arp reply contains the requested mac address |
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| Made in 1999. 54 mbps. other supported data rates 6-9-12-18-24-36-48mbps. uses 5ghz band and OFDM transmission |
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| 11mbps, and 5.5mbps is supported. uses 2.4ghz band and DSSS transmission |
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Definition
| supports 54mbps, same supported at A, 6-9-12-18-24-36-48. operates in the 2.4ghz band, has backwards comp w/ 802.11b. uses either OFDM or DSSS |
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Definition
| can approach 300mbps (through channel bonding) many devices range from 130-150mbps. operates in the 2.4ghz band, and 5ghz band or both. uses OFDM |
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| Advanced encryption standard. preferred symmetric encryption algorithm. aes is available in 128--bit, 192-bit, 256-bit key |
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| Application Layer. provides app services to a network.supports services used by end user apps. (mail programs, ftp programs) |
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| used in windows/unix enviro to se what a layer 2 mac address corresponds to a layer 3 ip address. |
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| the sender and receiver of the packet use different keys |
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| Asynchronous Transfer Mode - layer 2 WAN tech that interconnects sites using virtual circuits. Virt circuits are id'd as VPI/VCI. Virt path ID, and Virt circuit id. VPI id's a logical path which can contain multi virt circuits.VCI id's the unique logical circuit within a virtual path. |
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| authentication header - IPSEC protocol that provides authentication and integrity services. does not provide encryption. |
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| Auto private IP addressing - allows a networked device to self assign and IP address from the 169.254.0.0/16 network. this address is only usable on the dvice's local subnet. ip address is not routatable. |
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| collection of data portraying the characteristics of a network under normal operation conditions. |
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| Basic Rate Interface - bri circuit contains 2 64-kbps b channels and 1, 16kbps d channel. |
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| Basic Service Set - WLANS w/ 1 Access Point. |
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| Bit-Error rate tester - used in troubleshooting a link where you suspect BER (bit-error rate) |
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Definition
| number of ip addresses in a subnet, including the subnet's address and the subnet's directed broadcast address |
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| Bootstrap protocol - legacy broadcast-based proto used by networked devices to obtain ip address info |
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| Media Access Unit - used in token rings |
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Term
| Bits pertain to what layer of the OSI model? |
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Definition
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| Frames are from what layer in the OSI model? |
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Definition
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Term
| Packets are from what layer in the OSI model? |
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Definition
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| segments are from what layer in the osi model? |
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| Open Systems Interconnection |
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Definition
| Common address redundancy proto - can run on routers and multi-layer switches. uses virt ip and mac addresses |
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Definition
| Hot standby router protocol - same as CARP, uses virt ip and mac addresses. |
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Definition
| Spanning Tree Protocol - prevents a layer 2 loop from forming in a switched topology. |
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| Network address translation - allows private ip addresses to be translated into IP addresses, RFC 1918 |
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Definition
| demilitarized zone - allow users on the internet to initiate an email or web session coming into and org's email or web server, other protocols would be blocked. |
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Term
| Speed of a T1 dig circuit |
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Definition
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Term
| speed of an E1 dig circuit |
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Definition
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| speed of a T3 dig circuit |
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Definition
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| speed of an E3 dig circuit |
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| Secure sockets layer - provides crypto and reliabliity for the upper layers (OSI 5-7) can provide secure web browsing via HTTPS |
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Definition
| Transport Layer security - VPN probocol of choice for providing crypto and reliablitly to the uppers layers of OSI. used in HTTPS |
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Definition
| Layer 2 tunneling protocol - is a vpn protocol that lacks security features, such as encryption. l2tp can still be used for a secure VPN connection, if its combined w/ another proto that does encryption |
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Definition
| Point to point tunneling protocol - older VPN proto. old, and lacks security features. |
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Definition
| Simple network management protocol - used to manage network nodes, such as work servers, routers, switches and hubs. |
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Definition
| Simple network management proto agent - software which runs on a manage devices, ie server, router, or switch |
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Definition
| simple network management protocol - runs a networked management app, this SNMP manager is sometimes referred to as the NMS, network management system |
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Definition
| when open wlan, wlan whos ssid and auth cred's are known, is found in a public place a user might write a symbol on a wall letting others know the char's of the network. hobo's |
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Definition
| AKA war dialing, old method of dialing numbers until you got a answer |
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Definition
| Intrusion detection system - sits inline w/ traffic being analyzed notices an attack and responds, same as IPS, intrusion prevention system |
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Definition
| intrusion prevention system - receives a copy of traffic, notices an attack and responds, same as IDS |
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Definition
| Optical time domain reflectometer - can locate a cable fault in fiber |
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Definition
| time domain reflectometer, can locate a cable fault in copper cabling |
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Definition
| uses mmf, bandwidth cap of 10gbps, distance max of 300m |
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Definition
| uses SMF, bandwidth cap of 10gbps, distance max of 10km. |
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Term
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Definition
| SMF, bandwidth cap of 10gbps, distance max of 25km |
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Term
| 10gbase-er, 10gbase-ew, 10gbase-er4 |
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Definition
| smf, bandwidth cap 10gbps, mas distance of 40km. |
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Definition
| Physical layer - concerned w/ how bits are rep'd on the medium, wirign, physical topology, sync'n bits, bandwidth usage, multiplexing |
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Definition
| command, can determine dns record is correct, verify your dns server is operating. resolve a fully-qualified domain name, fqdn |
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Term
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Definition
| pings every router hop from a source ip address to a specified destination ip address. reports time. |
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Term
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Definition
| Prepare, plan, design, implement, operate, and optimize. asset management |
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Definition
| Thicknet - coax Bandwidth cap at 10mbps, distance 500m |
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Definition
| thinnet, coax - 10mbps, distance 185m |
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Definition
| cat 3, UTP - 10mbps, 100m |
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Definition
| cat 5, utp - 100mbps - 100m |
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Definition
| independent basic service set - Wlan can be created w/o the use of an AP. a type of Ad Hoc wlan. |
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Term
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Definition
| basic service set - wlan uses a single AP bss wlans are said to run in infrastructure mode, opposed to ad hoc. |
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Term
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Definition
| Diffie-hellman - securely establishes a shared secret key over an unsecured medium |
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Term
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Definition
| security association - is an agreement between the two ipsec peeers about the crypto para to be used in an isakmp session, Internet security association and key management protocol. |
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Term
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Definition
| security association - is an agreement between the two ipsec peeers about the crypto para to be used in an isakmp session, Internet security association and key management protocol. |
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Term
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Definition
| perfect forward secrecy - makes ure that a session key will remain secure, even if one of the private keys used to drive the session key becomes compromised |
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Term
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Definition
| Internet secuirty association and key management protocol, is a secure session within which parameters for an ipsec session are negotiated |
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Definition
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Term
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Definition
| medium dependent interface crossover - allows a switch port to properly configure its leads as transmit (tx) or receive (rx). |
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Definition
| classless inter-domain routing - shortens a classful subnet mask by removing 1's from the class full mask. |
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