Chapter 18 - Essentials of Networking Flashcards
LAN stands for what?
Local Area Network
Ethernet
The most common type of networking. Defines what kind of cable, hubs and speeds. And data into 1500 bytes.
Frame is what?
a 1500 byte block of data.
What does MAC stand for?
Media Access Control or MAC address. 48-bit address that manifest into 12-hexadecimal characters. That uniquely identifies a host on a LAN.
Every Network card gets what?
A unique MAC address.
What is a Network Card’s OEM ID?
The first six characters of it’s 12-hexdecimal MAC address.
Switches vs Hubs
Switches work a lot better than hubs. Switches are most common today.
Switches and Hubs are what?
Are both repeaters but switches are smart repeaters that only sends data out to the proper destination based on the MAC address.
Hubs
are repeaters that repeat all traffic on the LAN to all nodes
Switches
Are repeaters that filter traffic based on MAC address. And provide full bandwidth for all nodes. Which can connect up to 1024 computers in a LAN.
Hexadecimal
A short hand in the form of 16 numbering system to talk about binary code.
Each character of Hexadecimal represents what?
a 4 number binary combination
In hex number is what?
0-9 and A-F, for 0-15.
WAN stands for what?
Wide Area Network.
Router
Connects multiply LAN switches together into a WAN. That use Logical addressing (IP) to determine local vs. remote traffic.
Logical Addressing
Address for LAN network. or more known as an IP address.
Every computer has what two addresses?
A MAC address and an IP address.
DOCSIS is used for what?
Used for cable modems.
Coaxial Cable
connectors are axial. which uses RG ratings
RG-58
Oldest, very thin coaxial cable, which had BNC connectors
RG-6
Most Common for video and networking
RG-59
Most common for video and networking
F-Type connectors
Are threaded connectors.
Twisted Pair
is more common over coaxial .
UTP stands for what?
Unshielded Twisted Pair(UTP).
RJ-11
old telephone connector.
types of Twisted Pair cabling
RJ-45(common today), RJ-11(old used for telephones).
STP stands for what?
Shielded Twisted Pair(STP).
Fiber Optic Cable
Doesn’t use electricity it uses light.
Kinds to propagate a light signal?
Multimode(LED), and Singlemode(uses lasers).
Cat(Category) ratings.
Are different types of unshielded twisted pair used to carry more information
Types of CAT ratings are?
CAT5(100 Mbps), CAT 5e(1Gbps), CAT 6(1Gbps up to 100 meters, 10 Gbps up to 55 meters), CAT 6a(10 Gbps at 100 meter segments).
Plenum ratings
Plastic heat rating, three ratings, PVC(non-plenum),
TIA 568A and TIA 568B
standards for crimping cables
Straight-Through cable
Has the same standard on each end
Crossover Cable
Has different standards on each end.
110 punchdown tool
tool that allows you to punchdown network cables onto a rack(patch panel).
Fox and Hound
Fox(tone generator) and hound(tone probe).
TDR stands for what?
Time Domain Reflectometer(TDR). uses speed of light to detect how long a cable is.
Types of UTP
Solid core goes into the wall, with a solid piece of copper. Patch cables use Stranded and is flexible.
