Flashcards in Chapter 3 - Sheet1 Deck (60)
Name two types of cables used in today's networks
Twisted pair, fiber optic
Name a type of cable mostly not used in today's network, and when they are used.
Coaxial -- still used to connect to cable modems
Name the type of end used for Coax
Name the type of end used for twisted-pair
RJ-11 for voice, RJ-45 for data
Which pins aren't used in 568A or 568B standard?
4, 5, 7, and 8
Subscriber Connector OR Square Connector
Name the two most popular versions of the small form factor fiber-optic connectors (SFF)
Mechanical Transfer Registred Jack (MT-RJ), Local Connector (LC)
Why would you need a T1 crossover cable?
To connect two CSU/DSUs
What pins connect to what pins in a straight-through calbe?
1->1, 2->2, 3->3, 6->6
Picture of ST
Picture of SC
Picture of LC Fiber-Optic
Picture of MT-RJ
Most widely used fiber-optic connectors
MT-RJ / MTRJ
Mechanical Transfer Registred Jack
Name the media converters available
single mode fiber to Ethernet, multimode fiber to Ethernet, fiber to coaxial, and single mode to multimode fiber.
What is a 568A to 568A cable?
Straight-through cable. Connects hosts to switches or hubs
What is a 568A to 568B cable?
Crossover cable. Connects switches to switches, hosts directly to hosts.
A Modem. Channel service unit/data service unit
Describe a T1 crossover cable
568B crossover that connects pins 1, 2, 4, and 5 to 4, 5, 1, and 2, respectively.
Describe why you need a T1 crossover cable
In rare instances, you may have the need to run a cable between two CSU/DSUs
Describe the operation of Broadband over Power Line
BPL allows for the transmission of data over existing power lines, both for networking home computers and for receiving Internet access to a building.
How many lines and twisted pairs are there in the 568A and 568B standards
8 lines divided into 4 twisted pairs
When would you use a straight-through cable?
connect a host to switch/hub, connect a router to a switch/hub
When would you use a crossover cable?
Switch to switch, hub to hub, host to host, router to direct host
Which pairs and colors are swapped between 568A and 568B standards
Pairs 2 and 3 (orange and green)
Which UTP wiring uses four twisted wire pairs (eight wires) and is rated for 250MHz?
Cat 6 UTP