IST 220 Exam 3 Marc Rigas Penn State
2026 Questions and Answers
difference between routers and switches - Correct answer-router uses IP addresses
and MAC, switch uses MAC, router connects a local network to other local
networks, switch connects many devices together on a computer network
Characteristics of Ethernet Frame - Correct answer-Source MAC address,
destination MAC address, Cyclic Redundancy Check for error checking
What is ethernet link technology - Correct answer-wired technology with
simultaneous transmission and no collision
what numbers mean Personal Area Network (Bluetooth) - Correct answer-802.15
What protocol does bluetooth use - Correct answer-"taking turns" multiple access
protocol with slave/ master dynamic
Bluetooth characteristics - Correct answer-low power and short range wireless
connection
what kind of network is bluetooth - Correct answer-ad hoc - no central network
infrastructure, set up wireless connection without connecting to WIFI ap or router
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, 3 issues with wireless networks - Correct answer-1.) signal strength
2.) interference from other sources
3.) multipath progagation
characteristics of 4G LTE - Correct answer-5 - 20 KM, 100+ Mbps
characteristics of 3G - Correct answer-5 - 20 KM, 4 mbps
characteristics of 802.11b - Correct answer-10 - 50 M, 5 - 11 mbps
characteristics of 802.11n - Correct answer-30M, 200 mbps
characteristics of 802.15 - Correct answer-10-30M, 1 mbps
what does 802.11n mean - Correct answer-WiFi- faster!!
what does 802.11b mean - Correct answer-WiFi- slower!!
what does 802.3 mean - Correct answer-ethernet
what is 802.15 - Correct answer-bluetooth
difference between 4G and 3G - Correct answer-- 4G is much faster, 3G has
separate voice and data, LTE relies directly on internet for voice and data
similarity of 3G and 4G - Correct answer-both cover same area
what is 4G MME - Correct answer-- mobile management entity
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
2026 Questions and Answers
difference between routers and switches - Correct answer-router uses IP addresses
and MAC, switch uses MAC, router connects a local network to other local
networks, switch connects many devices together on a computer network
Characteristics of Ethernet Frame - Correct answer-Source MAC address,
destination MAC address, Cyclic Redundancy Check for error checking
What is ethernet link technology - Correct answer-wired technology with
simultaneous transmission and no collision
what numbers mean Personal Area Network (Bluetooth) - Correct answer-802.15
What protocol does bluetooth use - Correct answer-"taking turns" multiple access
protocol with slave/ master dynamic
Bluetooth characteristics - Correct answer-low power and short range wireless
connection
what kind of network is bluetooth - Correct answer-ad hoc - no central network
infrastructure, set up wireless connection without connecting to WIFI ap or router
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, 3 issues with wireless networks - Correct answer-1.) signal strength
2.) interference from other sources
3.) multipath progagation
characteristics of 4G LTE - Correct answer-5 - 20 KM, 100+ Mbps
characteristics of 3G - Correct answer-5 - 20 KM, 4 mbps
characteristics of 802.11b - Correct answer-10 - 50 M, 5 - 11 mbps
characteristics of 802.11n - Correct answer-30M, 200 mbps
characteristics of 802.15 - Correct answer-10-30M, 1 mbps
what does 802.11n mean - Correct answer-WiFi- faster!!
what does 802.11b mean - Correct answer-WiFi- slower!!
what does 802.3 mean - Correct answer-ethernet
what is 802.15 - Correct answer-bluetooth
difference between 4G and 3G - Correct answer-- 4G is much faster, 3G has
separate voice and data, LTE relies directly on internet for voice and data
similarity of 3G and 4G - Correct answer-both cover same area
what is 4G MME - Correct answer-- mobile management entity
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
