ISM3004 EXAM 2 WEEK 5 QUESTIONS
& ANSWERS
Network - correct answer ✔✔Definition: collection of devices, connected together via
communication devices and transmission media.
Communication devices are switches, hubs, access points...
Transmission media are wires, radio waves (the way that information gets from point to point)
LAN - correct answer ✔✔Definition: Network that is spread across a limited geographical area
Example: Ethernet and 802.11 (what we know as WIFI)
WAN - correct answer ✔✔Definition: Network that is spread across a large geographical area
- Could be a private, where only the company paying for it can use the network
- Could be public such as the Internet
Workstation - correct answer ✔✔Definition: a device that requires a person to operate it (like
computers, smartphones); used to interact with the network and its resources
Server - correct answer ✔✔Definition: A server that is attached to a network whose primary
purpose is to provide a service to other devices on that network.
Examples: web server, video server (provide a service to users or workstations)
Node - correct answer ✔✔Definition: any device that is connected to a network
Example: laptop, tablet, cellphone... things can be nodes
, Protocol ("rules of the road") - correct answer ✔✔Definition: requirements that make sure that
a given system functions reliably; define how every aspect of the communication happens
Open vs. Proprietary - correct answer ✔✔- Open protocol means that all of the rules for
communication are published for everyone to see (universal use)
- Proprietary means that only the company that invented it was able to use it
Packet - correct answer ✔✔Definition: Networks divide data into packets; sent out and put back
together when they are received by the receiving node.
Bandwidth - bps, kbps, mbps, gbps - correct answer ✔✔Definition: capacity of transmission in a
fixed period of time.
bps: bits per second
kbps: kilobits per second (thousands)
Modern usable communication speeds
- mbps: Megabits per second (millions)
- gbps: Gigabits per second (billions)
What are "CAT" ratings for Ethernet cables? - correct answer ✔✔Definition: rating system that
tells you how that cable has been engineered and how fast it can safely transmit data.
Cat 5: the minimum remotely accessible quality (good for 10megabits and limited to
100megabits, that's it)
Cat 3 and 4: useless
Cat 5e: supports gigabit user internet
Cat 6: also supports gigabit; current standard you'll find in stores today
Fiber Optic cable is non-conducting - why is that good? - correct answer ✔✔It is made of a glass
so it helps with avoiding electrical interference... for example, during Florida summers, lighting
won't affect fiber optic.
& ANSWERS
Network - correct answer ✔✔Definition: collection of devices, connected together via
communication devices and transmission media.
Communication devices are switches, hubs, access points...
Transmission media are wires, radio waves (the way that information gets from point to point)
LAN - correct answer ✔✔Definition: Network that is spread across a limited geographical area
Example: Ethernet and 802.11 (what we know as WIFI)
WAN - correct answer ✔✔Definition: Network that is spread across a large geographical area
- Could be a private, where only the company paying for it can use the network
- Could be public such as the Internet
Workstation - correct answer ✔✔Definition: a device that requires a person to operate it (like
computers, smartphones); used to interact with the network and its resources
Server - correct answer ✔✔Definition: A server that is attached to a network whose primary
purpose is to provide a service to other devices on that network.
Examples: web server, video server (provide a service to users or workstations)
Node - correct answer ✔✔Definition: any device that is connected to a network
Example: laptop, tablet, cellphone... things can be nodes
, Protocol ("rules of the road") - correct answer ✔✔Definition: requirements that make sure that
a given system functions reliably; define how every aspect of the communication happens
Open vs. Proprietary - correct answer ✔✔- Open protocol means that all of the rules for
communication are published for everyone to see (universal use)
- Proprietary means that only the company that invented it was able to use it
Packet - correct answer ✔✔Definition: Networks divide data into packets; sent out and put back
together when they are received by the receiving node.
Bandwidth - bps, kbps, mbps, gbps - correct answer ✔✔Definition: capacity of transmission in a
fixed period of time.
bps: bits per second
kbps: kilobits per second (thousands)
Modern usable communication speeds
- mbps: Megabits per second (millions)
- gbps: Gigabits per second (billions)
What are "CAT" ratings for Ethernet cables? - correct answer ✔✔Definition: rating system that
tells you how that cable has been engineered and how fast it can safely transmit data.
Cat 5: the minimum remotely accessible quality (good for 10megabits and limited to
100megabits, that's it)
Cat 3 and 4: useless
Cat 5e: supports gigabit user internet
Cat 6: also supports gigabit; current standard you'll find in stores today
Fiber Optic cable is non-conducting - why is that good? - correct answer ✔✔It is made of a glass
so it helps with avoiding electrical interference... for example, during Florida summers, lighting
won't affect fiber optic.
