The more you know
We do not use these devices anymore due to how the retransmit all data to all connected devices
What are hubs?
You will use this tool to determine if an ethernet cable has been properly wired on both ends
What is a cable tester?
This network topology consists of all nodes being interconnected
What is a full mesh?
This device separates collision domains based on the port a device is connected to.
What is a Switch?
This is the OSI Model Layer where MAC addresses are found
What is Layer 2 Data Link?
This is the maximum payload size of a standard ethernet frame minus the header
What is 1500 Bytes? Referred to as the MTU.
These are two devices that operate at OSI Layer 2 Data Link
What are NICs, Bridges, Switches, or Wireless Access Points?
The first 6 digits of a MAC address can be used to identify this in most scenarios
What is the Device Manufacturer, also known as the OUI Organizationally Unique Identifier?
This tool is used to find where a conductor is connected to, gives an audible tone and/or light when the tester end of the tool is at or near the conductor
What is a Network Tone Generator (or Toner) and Probe or Fox and Hound?
You built this kind of cable if you used T568A wiring on one end of a cable and T568B wiring on the other end of the cable
What is a Crossover Cable?
This is the name we give to the drop in voltage of a wired signal or strength of a wireless signal over distance, unexpected levels of this may indicate a wiring fault or unexpected/undiscovered wireless interference
What is Attenuation?
This is the recommended maximum effective distance of copper wiring for Ethernet
What is 90 Meters?
A Cat 6 cable is referred to as this specification
What is 10GBASE-T?
These are the layers of the OSI model starting from Layer 7
What are Application, Presentation, Session, Transport, Network, Data Link, Physical?
This type of cabling is used in ceilings and floors to reduce the harmful chemicals produced and the spread of a fire
What is plenum cabling?
This is the name we give to network distribution points near employee endpoint computers
What is an IDF (Intermediate Distribution Point)?
You will use this tool to specifically test for a bad port on a networking device
What is a loopback tester?
This kind of copper cable is used for short, very high-speed interconnects, usually in datacenters
What is Twin-Axial/Twinax?
This is the acronym for the primary network location within a building, usually near the demarcation point
What is the MDF (Main Distribution Frame)?
This network topology features interconnects between most but not all devices
What is a partial mesh?
This CIDR (/xx) is found between many routers
What is /30?
This is the name we give to cabling that connects IDFs to MDFs, typically between floors (not the type of cable itself)
What is Backbone Cabling?
You will use this kind of copper ethernet cable if you are making runs past power equipment or fluorescent lighting when fiber is either not an option or not within your budget
What is shielded?
This technology is used in fiber cables to send multiple channels separated by their wavelengths
What is Wavelength Division Multiplexing?
This protocol is used to establish a single logical network channel between two or more separate physical cabled links
What is LACP Link Aggregation Control Protocol