Chapter 6 - Networking Fundamentals Flashcards
list the four different networks from smallest to largest
6-265
PAN
LAN
MAN
WAN
how large is a MAN?
6-268
spans a city or a large campus
according to the book’s definition, tell me 2 things about servers
6-269
they are a core component of the network
the provide a link to the resources necessary to perform any task
tell me the most important resources
6-271
printers and other peripherals
disk storage and file access
applications
what does NOS stand for and what does it do?
6-272
network operating system
controls the communication with resources and the flow of data across the network
there are two models for network resource access. what are they?
6-273
peer to peer
client server
tell me the 5 primary topologies
6-275
bus star ring mesh hybrid
does a ring topology have a unidirectional path or a bidirectional path?
6-277
unidirectional
tell me the formula for calculating how many cables you’ll need in a full mesh topology
6-278
(n(n-1))/2 where n is the number of computers in the mesh
tell me the seven layers of the OSI model from top to bottom
6-280,281
- application
- presentation
- session
- transport
- network
- data link
- physical
what does CSMA/CD stand for?
6-283
carrier sense multiple access / collision detection
what 5 factors do you take into account when evaluating a NIC?
6-284
compatibility performance sending and controlling data configuration drivers
for 2 computers to send and receive data, they have to agree on 5 things. tell me what they are.
6-284
max size of data frame
amount of data sent before giving confirmation
time needed between transmissions
amount of time to wait before sending confirmation
speed at which data transmits
at what layer of the OSI model to NIC drivers operate?
6-285
the media access control sublayer of the data link layer
tell me the 4 sections of a coax cable, going outside to inside
6-286
outer insulation
wire mesh conductor
inner insulation
center wire
of all the Coax RG types, all have a solid copper cable except for one in particular. what is that coax type and what cable type does it use?
6-287
RG-58 AU (Thinnet)
stranded copper
what’s the difference between thicknet and thinnet?
6-287
thicknet required vampire taps and thinnet uses BNC connectors instead
BNC, T connector, terminator and F connector. where do you find these things?
6-287,288
BNC, T, and terminator are part of the thinnet (therefore internet)
F connector is for cable TV
tell me the two types of twisted pair. which one will you find in the plenum of a building?
6-288
STP (shielded)
UTP (unshielded)
there are 8 categories of unshielded twisted pair cables. run through them and tell me either what they’re used for or what their speed is
6-289
1 - voice only 2 - 4 Mbps 3 - 10 Mbps 4 - 16 Mbps 5 - 100 Mbps 5e - 1 Gbps 6 - 10 Gbps 6a - 10 Gbps
run through the colors of a patch cable (568A)
6-291
white/green green white/orange blue white/blue orange white/brown brown
now run through the colors of the cross over cable (568B)
6-291
white/orange orange white/green blue white/blue green white/brown brown
you have a choice between multimode fiber and single mode fiber. which one will you use for long distance and what’s the max that distance can be?
6-292
single mode
40 kilometers
you are looking at fiber optic connector types. which one is the square one?
6-293
the SC, subscriber connector
what fiber optic connector is the most widely used?
6-292
the straight tip (ST)
by default, are most firewalls configured as default deny or implicit deny?
6-301
default deny
