NetworkingEssentials Flashcards
Networking Essentials
LAN computer connect with
Ethernet
Networking Essentials
Ethernet Frames are standardized as
DoLSS
1500 bytes
Networking Essentials
Uniquely identifies a host on a LAN
MAC address
Networking Essentials
To see Mac address on windows
ipconfig
Networking Essentials
To see Mac address on Linux
ifconfig
Networking Essentials
These are dumb and repeat all traffic on the LAN to all nodes
HUB
Networking Essentials
Filter traffic based on MAC addresses
Switch
Networking Essentials
Switches provide this for all nodes
Full Bandwidth
Networking Essentials
Base 16
0000: 0h
0001: 1h
0010: 2h
0011: 3h
0100: 4h
0101: 5h
0110: 6h
0111: 7h
1000: 8h
1001: 9h
1010: Ah
1011: Bh
1100: Ch
1101: Dh
1110: Eh
1111: Fh
Hexidecimal
Equals 4 data values
Mac address = 48
Networking Essentials
enables discussion of long strings of 1s and 0s
Hexadecimal (base 16)
Networking Essentials
Each hex character represents this many binary numbers
4
0000 - 1111
Networking Essentials
Hex numbering
0-9
a-f
0 - 15
Networking Essentials
Can connect up to 1024 computers in a LAN
Switch
Networking Essentials
Connect multiple LANs together in a
WAN
Networking Essentials
Use logical addressing (IP addressing) to determine local VS
Remote Trafficking
Networking Essentials
These cables use RG ratings and F-type connectors
Coaxial cables
Networking Essentials
Twisted pair cabling is used by
most networks
Networking Essentials
These cables use light rather than electrical pulses
Fiber optics
Networking Essentials
Twisted pair cabling have different
Cat ratings
Networking Essentials
Cat designed for 100 MB per second
Mike100
Cat 5
Networking Essentials
Cat designed for 1GB at up to 100 meters
-OR-
10GB up to 55 meters
Cat 6
Networking Essentials
Cat designed for 10GBS at one hundred meter segments
Cat 6a
Networking Essentials
To attach UTP cables to crimp like RJ-45 use
Crimping tool
Networking Essentials
Two crimping standards
T568A
T568B
Networking Essentials
Cable with same standard on each end
Straight through cable
Networking Essentials
Cable with different standards on each end
Crossover cables
used to connect computers to each other.
Networking Essentials
Runs from wall outlet to patch panel through walls/ceilings
Horizontal runs
Networking Essentials
Tool used to connect cables to patch panel
Punchdown tool
Networking Essentials
Tone generators and tone probes are used to
Locate cables
Networking Essentials
For testing cable runs use
TDR
Networking Essentials Quiz
Goes at the end of an Ethernet frame
FaCeS
Frame Check Sequence (FCS)
Networking Essentials Quiz
FCS includes
Destination Mac Address
Source Mac Address
Data payload
FCS
Networking Essentials Quiz
Made up of 48 bits
RaVe Mac
MAC addresses
Networking Essentials Quiz
Switches watch all inbound frames to
Learn MAC addresses from them.
Networking Essentials Quiz
Made up of 12 hexadecimal characters
MAC addresses
Networking Essentials Quiz
Identified by logical addresses (IP address)
Networks
Networking Essentials Quiz
Physical / MAC / Ethernet Addresses
Different names for the same thing.
Networking Essentials Quiz
Describes any type of cable with a fire-resistant jacket.
Plenum
Networking Essentials Quiz
Coaxial, Unshielded Twisted Pair (UTP) and Shielded Twisted Pair (STP)
Types of network cable
Networking Essentials Quiz
Multimode fiber cables use these to generate light pulses
LEDs
Networking Essentials Quiz
Can easily identify a specific cable within a bundle
Tone Probe / Tone Generator
AKA
Fox and Hound
Networking Essentials Quiz
Used in walls and horizontal runs because it it is good for long runs and is not exposed to frequent bending.
Solid-core cable.
