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18 Cards in this Set
- Front
- Back
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Coaxial Cable comes in what two variants, and what are their attributes?
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Thinnet and Thicknet.
Thinnet uses RG-58 grade coax, uses a BNC connector, has a maximum distance of 185 Meters, and has a maximum speed of 10 Mbps. Thicknet is made from RG-8 grade coax, uses a Vampire Tap, has a maximum distance of 500 meters, and also has a speed of 10 Mbps. Thinnet is 1/4" while Thicknet is 1/2" |
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Where does Twisted-Pair cabling get its name from?
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It gets its name form having eight wires divided into 4 pairs, with each wire in the pair being twisted around the another throughout the length of the cable. This helps protect against interference.
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There are two types of twisted-pair cabling, what are they and what are their differences.
What are the common traits? |
Shielded Twisted Pair (STP) and Unshielded Twisted Pair (UTP).
Both types of cabling use eight wires that are placed inside a jacket to cover the wires, but STP has an extra layer of shielding in the jacket to help protect against interference. Twisted-pair cabling has a maximum distance of 100 meters and uses what is known as an RJ-45 connector to connect the cable to a system. |
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How many categories of UTP cabling should you have studied?
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7 (Cat1 - Cat6 - but don't forget it goes Cat 4 - Cat 5 - Cat 5e - Cat 6
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What is the basics of Fiber-Optic cabling?
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A glass or plastic core, and pulses of light travel the core as opposed to electrical signal that travel through a copper core.
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There are two types of Fiber-Optic cable commonly used today, what are they and what are their differences?
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Single-Mode Fiber and Multimode Fiber (MMF)
SMF uses a single ray of light, or mode, to transmit the data. SMF is the fiber-optic cable type used for long distances, such as 40 kilometers. MMF sends multiple rays of light at a time, with each ray of light running on different reflection angles. MMF is the fiber-optic cable type used for short distances, such as 2 kilometers. |
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What is the purpose of a Straight-through cable, and how does it work?
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A straight-through cable is a normal twisted-pair cable that connect a system a switch. It gets name from the fact that the wires retain the same position at both heads. This allows connections from the systems TX (transmit pins) and RX (receive pins) to connect to the inverse pins on the switch. (TX + -> RX+)
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What is the CSMA/CD algorithm (in simple terms)?
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Step 1: A Device with a Frame to send listens until Ethernet is not busy
Step 2: When Ethernet is not busy, the sender begins sending the frame. Step 3: The Sender(s) listen to make sure no collision occured. Step 4: If a collision does occur, the device that had been seding the frame sends out a jamming signal to ensure that all stations recognize the colision. Step 5: After the jamming is complete, each sender randomizes a timer and then waits that long to resend Step 6: When timer expires begin at Step 1 again. |
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What does half duplex refer too in terms of an Ethernet Hub?
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This is the logic of waiting until the LAN is silent, it refers to the fact that the device either sends or receives at any point, but never both.
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What does a collision domain refer too?
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A set of devices whose frames could collide.
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What are the four layers of the TCP/IP Model?
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Application, Transport, Internet, Network Access
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Ethernet uses ____ as its access method?
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CSMA/CD
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What layer of the OSI model is responsible for reliable and unreliable delivery?
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The Transport layer
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Data traveling on Cat ______ UTP cabling runs at 1 Gbps?
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Cat 5e
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Data traveling on Cat ______ UTP cabling runs at 10 Gbps.
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Cat 6
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Data traveling on Cat ______ UTP cabling runs at 100 Mbps.
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Cat 5
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Data traveling on Cat ______ UTP cabling runs at 16 Mbps.
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Cat 4
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Data traveling on Cat ______ UTP cabling runs at 10 Mbps.
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Cat 3
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