ISM3004 Exam 2 Week 5 questions
well answered
Network - correct answer ✔✔"Collection of devices connected together via communications
devices (switches, hubs, access points) and transmissions media (wires, radio waves, the way
info goes from point to point)"
· NETWORK SCOPES: - correct answer ✔✔LAN and WAN
LAN - correct answer ✔✔o Local Area Network (limited geographic area: a building or a
campus)
o Ex: UF Network
o Ethernet- wired networks
o 802.11- wifi
WAN - correct answer ✔✔o Wide Area Network (large geo scale: UF and gville have presence in
Orlando and all over states)
o Could be public (the whole internet) or private.
Workstation - correct answer ✔✔o network computers: laptop, desktop, smartphones
Server - correct answer ✔✔o Device that is attached to the network whose primary purpose is
to provide a service to other devices on that network
o Ex: video server for the lecture
· Node: - correct answer ✔✔o Most general of the 3 (Workstation, Server, Node)
,o Simply any device that is attached to a network (e.g. workstation, smartphone, refrigerator)
Protocol: Open vs. Propietary - correct answer ✔✔§ Open- all of the rules for communication
are published for everyone to see, so multiple companies can create products, hardware, and
software that perfectly interact with one another using these open, published protocols where
there are no secrets whatsoever (this is the WAY to go)
Proprietary-only the company that invented it could use it- nobody else could, so you had to buy
everything from that one company- all the hardware, software, everything
Packets - correct answer ✔✔o Instead of having one large stream, it is divided into packets (or
into a bunch of boxes)
§ Your network breaks down a big file into smaller segments into hundreds, into thousands or
millions of packets (li2le chunks of data shoots across the network for the receiving end to
reassemble to get the original data that was sent out)
· IP - correct answer ✔✔o Internet Protocols (main internet protocol)- foundational protocol
that enables billions of devices on this planet to communicate at high speed around the globe
· MAC vs. IP addresses -- what do they do? how are they different?
Note: MAC address - don't need to define acronym, just know its function - correct answer ✔✔·
Mac Address ("Media Access Control") [On the LAN side for Ethernet and Wi-Fi], permanent
§ Similar to a social security number (uniquely identifies us)
§ Tells nothing about location
· IP Address Internet Protocol not only
· tells who you are
· Tells where you are
· (changes as you move forward place to place)
· First three dotted numbers identify what network youre on
§ Network {128.227.3t}
, · Like mailing address Gainesville, FL 32ft11
§ Node {20fi}
Like apartment #20fi
· Bandwidth - bps, kbps, mbps, gbps - correct answer ✔✔o Capacity of transmission media in
fixed time
§ Bits/sec: bps
§ Kilobits/sec: thousands 1024 bps ff 1 kbps
§ Megabits/sec: millions 1024 kbps ff 1 mbps
§ Gigabits/sec: billions 1024 mbps ff 1 gbps
o Megabits/Gigabits are modern, usable communication speeds
- Copper Cabling (most popular Lan Protocol) - correct answer ✔✔· Copper Ethernet Cabling -
what are "CAT" ratings for Ethernet cables?
o The most popular wired LAN protocol
§ 4 sets of 2 wires each UTP, unshielded Twisted pair
§ Arranged so that the signals going down 1 pair do not mess with the signals going down
another pair.
§ Each node gets its own cable, 1 device, 1 cable=Star Topology.
§ 10 meters of wire, not distance.
o "Cat" ratings- measures quality
§ Cat number tells how the cable is engineered and how fast it can transmit data
§ Cat 5 is the minimum remotely accessible quality
If you rent office space and it has cat 3 o 4 wiring it is useless.
o What are the key differences between copper UTP and fiber Ethernet cabling? - correct
answer ✔✔§ UTP- Unshielded Twisted Pair
well answered
Network - correct answer ✔✔"Collection of devices connected together via communications
devices (switches, hubs, access points) and transmissions media (wires, radio waves, the way
info goes from point to point)"
· NETWORK SCOPES: - correct answer ✔✔LAN and WAN
LAN - correct answer ✔✔o Local Area Network (limited geographic area: a building or a
campus)
o Ex: UF Network
o Ethernet- wired networks
o 802.11- wifi
WAN - correct answer ✔✔o Wide Area Network (large geo scale: UF and gville have presence in
Orlando and all over states)
o Could be public (the whole internet) or private.
Workstation - correct answer ✔✔o network computers: laptop, desktop, smartphones
Server - correct answer ✔✔o Device that is attached to the network whose primary purpose is
to provide a service to other devices on that network
o Ex: video server for the lecture
· Node: - correct answer ✔✔o Most general of the 3 (Workstation, Server, Node)
,o Simply any device that is attached to a network (e.g. workstation, smartphone, refrigerator)
Protocol: Open vs. Propietary - correct answer ✔✔§ Open- all of the rules for communication
are published for everyone to see, so multiple companies can create products, hardware, and
software that perfectly interact with one another using these open, published protocols where
there are no secrets whatsoever (this is the WAY to go)
Proprietary-only the company that invented it could use it- nobody else could, so you had to buy
everything from that one company- all the hardware, software, everything
Packets - correct answer ✔✔o Instead of having one large stream, it is divided into packets (or
into a bunch of boxes)
§ Your network breaks down a big file into smaller segments into hundreds, into thousands or
millions of packets (li2le chunks of data shoots across the network for the receiving end to
reassemble to get the original data that was sent out)
· IP - correct answer ✔✔o Internet Protocols (main internet protocol)- foundational protocol
that enables billions of devices on this planet to communicate at high speed around the globe
· MAC vs. IP addresses -- what do they do? how are they different?
Note: MAC address - don't need to define acronym, just know its function - correct answer ✔✔·
Mac Address ("Media Access Control") [On the LAN side for Ethernet and Wi-Fi], permanent
§ Similar to a social security number (uniquely identifies us)
§ Tells nothing about location
· IP Address Internet Protocol not only
· tells who you are
· Tells where you are
· (changes as you move forward place to place)
· First three dotted numbers identify what network youre on
§ Network {128.227.3t}
, · Like mailing address Gainesville, FL 32ft11
§ Node {20fi}
Like apartment #20fi
· Bandwidth - bps, kbps, mbps, gbps - correct answer ✔✔o Capacity of transmission media in
fixed time
§ Bits/sec: bps
§ Kilobits/sec: thousands 1024 bps ff 1 kbps
§ Megabits/sec: millions 1024 kbps ff 1 mbps
§ Gigabits/sec: billions 1024 mbps ff 1 gbps
o Megabits/Gigabits are modern, usable communication speeds
- Copper Cabling (most popular Lan Protocol) - correct answer ✔✔· Copper Ethernet Cabling -
what are "CAT" ratings for Ethernet cables?
o The most popular wired LAN protocol
§ 4 sets of 2 wires each UTP, unshielded Twisted pair
§ Arranged so that the signals going down 1 pair do not mess with the signals going down
another pair.
§ Each node gets its own cable, 1 device, 1 cable=Star Topology.
§ 10 meters of wire, not distance.
o "Cat" ratings- measures quality
§ Cat number tells how the cable is engineered and how fast it can transmit data
§ Cat 5 is the minimum remotely accessible quality
If you rent office space and it has cat 3 o 4 wiring it is useless.
o What are the key differences between copper UTP and fiber Ethernet cabling? - correct
answer ✔✔§ UTP- Unshielded Twisted Pair
