CIS 320 - EXAM 1, CIS 320 FINAL EXAM, CIS
320 - EXAM 2 QUESTIONS AND ANSWERS
network analogy -
correct answer ✅think of postal system (UPS, FEDEX, etc)
if you want to use this system, you need to meet certain criteria
(need to put the item in a box, have an address, etc)
similarly, to send a packet from one computer network to another,
it must be placed in a frame, transported through a network
(changing frames with each new network) until it reaches its
destination
are network standards legally required -
correct answer ✅NO
however, you SHOULD follow the standards in order to fully interact
with the rest of the world
some countries (China, Russia, North Korea) want to deviate from
the standard to have more control over information, which would
mean more control over their citizens
,CIS 320 - EXAM 1, CIS 320 FINAL EXAM, CIS
320 - EXAM 2 QUESTIONS AND ANSWERS
encapsulation and decapsulation -
correct answer ✅enc = wrapping something into something else
dec = unwrapping what was wrapped up
can packets hold a file -
correct answer ✅NO
some can, but the majority don't
delivery analogy used for data file movement -
correct answer ✅datafile = the gift
tcp segment = the gift wrap
ip packet = the brown box you put the gift in
ethernet/WAN frame = the van/plane that transports the gift
when it arrives at it destination, it removes all of the layers until
only the datafile is left
,CIS 320 - EXAM 1, CIS 320 FINAL EXAM, CIS
320 - EXAM 2 QUESTIONS AND ANSWERS
circuit switch environment -
correct answer ✅network used by landline telephones
the wire between each of the phones was only delegated to them
as long as they were in use.
when they cease talking, the circuit will be switched so that
another pair can use it
how to deal with an irrational enemy -
correct answer ✅DOs:
- Speak with power. If you appear strong to them, they will be less
likely to attack for fear of retaliation
DON'Ts:
- DON'T appease them. Don't let them get away with things
packet switched networks (burstiness pathway) -
correct answer ✅what modern networks use
, CIS 320 - EXAM 1, CIS 320 FINAL EXAM, CIS
320 - EXAM 2 QUESTIONS AND ANSWERS
- promotes efficiency since computers share pathways (burstiness
pathways)
- multiple connections, so if one is cut off, there are alternatives to
use
packet switched networks = highway (multiple roads to get to and
from the highway)
efficient and redundant
multiplexing -
correct answer ✅multiple users can use the same routes
think of multiple cars on the highway; packets share connections in
a similar manner
high traffic = slower traffic, low traffic = faster traffic
analogue environment -
correct answer ✅experiencing things around you with our 5
senses
320 - EXAM 2 QUESTIONS AND ANSWERS
network analogy -
correct answer ✅think of postal system (UPS, FEDEX, etc)
if you want to use this system, you need to meet certain criteria
(need to put the item in a box, have an address, etc)
similarly, to send a packet from one computer network to another,
it must be placed in a frame, transported through a network
(changing frames with each new network) until it reaches its
destination
are network standards legally required -
correct answer ✅NO
however, you SHOULD follow the standards in order to fully interact
with the rest of the world
some countries (China, Russia, North Korea) want to deviate from
the standard to have more control over information, which would
mean more control over their citizens
,CIS 320 - EXAM 1, CIS 320 FINAL EXAM, CIS
320 - EXAM 2 QUESTIONS AND ANSWERS
encapsulation and decapsulation -
correct answer ✅enc = wrapping something into something else
dec = unwrapping what was wrapped up
can packets hold a file -
correct answer ✅NO
some can, but the majority don't
delivery analogy used for data file movement -
correct answer ✅datafile = the gift
tcp segment = the gift wrap
ip packet = the brown box you put the gift in
ethernet/WAN frame = the van/plane that transports the gift
when it arrives at it destination, it removes all of the layers until
only the datafile is left
,CIS 320 - EXAM 1, CIS 320 FINAL EXAM, CIS
320 - EXAM 2 QUESTIONS AND ANSWERS
circuit switch environment -
correct answer ✅network used by landline telephones
the wire between each of the phones was only delegated to them
as long as they were in use.
when they cease talking, the circuit will be switched so that
another pair can use it
how to deal with an irrational enemy -
correct answer ✅DOs:
- Speak with power. If you appear strong to them, they will be less
likely to attack for fear of retaliation
DON'Ts:
- DON'T appease them. Don't let them get away with things
packet switched networks (burstiness pathway) -
correct answer ✅what modern networks use
, CIS 320 - EXAM 1, CIS 320 FINAL EXAM, CIS
320 - EXAM 2 QUESTIONS AND ANSWERS
- promotes efficiency since computers share pathways (burstiness
pathways)
- multiple connections, so if one is cut off, there are alternatives to
use
packet switched networks = highway (multiple roads to get to and
from the highway)
efficient and redundant
multiplexing -
correct answer ✅multiple users can use the same routes
think of multiple cars on the highway; packets share connections in
a similar manner
high traffic = slower traffic, low traffic = faster traffic
analogue environment -
correct answer ✅experiencing things around you with our 5
senses
