Term
| Width of networking equipment rack |
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Definition
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Term
| Used to measure height in an equipment rack |
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Definition
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Term
| 110block advantages over the 66block |
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Definition
Less Crosstalk
Can exceed 10Mbps |
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Term
| Any two stands of bare copper touching. |
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Definition
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Term
| Any broken wires in a your cabling. |
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Definition
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Term
| Wiring error where two wires of a twisted pair are instead connected using two wires from different pairs and can cause crosstalk |
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Definition
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Term
| Multimeter on each end of a cable, showing infinite Ohms |
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Definition
| No connection, as opposed to 0Ohms which signals a connection |
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Term
| Testing for crosstalk on the same end of cable |
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Definition
| Near end cross talk (NEXT) |
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Term
| Testing for crosstalk at the other end of the cable |
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Definition
| Far end cross talk (FEXT) |
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Term
These can cause _______
Broken cables / Open connections
SFP/GBIC (s)
Dirty connector
Connector mismatch |
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Definition
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Term
| Plugging a singlemode into a switch that expects multimode or viceversa |
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Definition
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Term
| Plugging a 1310nm wavelength into a switch that expects 1530 |
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Definition
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Term
| Controls how multiple network devices send and receive data as a single connection |
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Definition
| LACP Link aggregation control protocol |
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Term
| Used to extend a cable past its distance limitations |
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Definition
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Term
| Test a cable to ensure it can handle its rated amount of capactity |
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Definition
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Term
| Save the amount of light loss in fiber optic cable |
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Definition
| Optical Power Meter / Light Meter |
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Term
| Monitors protocols running on different layers of the network (commonly 2-7 excluding presentation) |
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Definition
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Term
| Used to locate particular cables from a mess of cables |
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Definition
| Tone Probe AND Tone Generator |
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Term
| Format for adding an IP to the arp table |
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Definition
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Term
| Ping sent using frames on the same network rather than with ICMP |
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Definition
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Term
| Command to view a systems local routing table |
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Definition
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Term
| Windows only command for displaying other systems on your windows network |
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Definition
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Term
| Displays current state information on running IP processes |
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Definition
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Term
| Checks and logs the state of all ports on a network, used to fix vulnerabilities or even by hackers to find them |
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Definition
| Port scanner (nmap is a popular port scanning tool) |
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Term
| 7 Steps of troubleshooting method |
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Definition
Identify
Establish theory of probable cause
Test theory to determine cause
Establish plan of action
Implement plan of action
Verify full system functionality
Document findings |
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Term
| Explain NIC teaming misconfiguration in a LACP setup |
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Definition
2 or more NICs all set in (Passive/Passive)
(Active/Passive) or (Active/Active) would work fine |
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Term
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Definition
Virtual Router Redundancy Protocol
Hot Standby Router Protocol (Cisco) |
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Term
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Definition
Path MTU Discovery
Sends a set size ICMP with a (DF) Dont fragment header if it fails it decreases size and sends again until it works to fine the max/best MTU size. Routers that block ICMP will not cooperate with PMTU making the router a MTU black hole |
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Term
| Network appliance configured incorrectly, some or all data is blocked or sent out a wrong interface |
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Definition
| Interface misconfiguration |
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Term
-Every activity light on nodes are solid
-Computers on other broadcast domains work
-Every computer under one broadcast domain cant connect to eachother
These are symptoms of ________ |
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Definition
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Term
| After a router learns a route through a certain interface it will not communicate that route out the same interface |
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Definition
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Term
-Huge amounts of traffic between routers
-Usually caused by static routes
Symptoms of ____ ___ |
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Definition
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Term
| Most VPN concentrators also hold ___ ___ information so that remote VPN clients can truly behave as if they were on the LAN |
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Definition
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Term
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Definition
| Creates a networking hybrid mesh of Wifi Ethernet MoCA and powerline (HomePlug IEEE1901) |
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