IS 410 Final Exam Questions with Correct Answers Latest Update 2025/2026
Framing in Data Link Layer - Answers - Data link layer uses Ethernet protocol
- PDU: Ethernet Frame
- Frame header includes MAC address of he next computer/router to which the messages will
be sent
Address Resolution Protocol (ARP) - Answers Resolves IP address to MAC address
Bluetooth - Answers - Creates a Personal Area Network (PAN)
- Links up to 8 devices within 10 meter area
Personal Area Network (PAN) - Answers Within range of an individual person, typically within a
range of 10 meters
Local Area Network (LAN) - Answers Up to 500 meters; an office or floor of a building
Campus Area Network (CAN) - Answers Up to 1000 meters; a college campus or corporate
facility
Metropolitan Area Network (MAN) - Answers A city or metropolitan area
Wide Area Network (WAN) - Answers Transcontinental or global area
Why use a LAN? - Answers 1. Information sharing
- improves decision making
- reduce data duplication and inconsistency
2. Resource sharing
- printers can be shared by many clients
3. Software sharing
- reduces costs, simplifies maintenance and upgrades
LAN Components - Answers 1. Clients
2. Servers
3. Network Interface Cards (NICs)
4. Network Circuits
5. Switches / access points
, 6. Software
Network Interface Card (NIC) - Answers - Also called network cards and network adaptors
- Commonly built into motherboards
- NICs contain unique MAC address
Network Circuit - Answers - Physical matter used to carry data transmissions
- Guided media: transmission flows along physical medium
- Wireless (Radiated) media: transmission flows through air
Guided Media - Answers - Coaxial
- Twisted Pair
- Fiber Optic
Wireless Media - Answers Radio
Switches - Answers Link network cables from different devices
Access Points - Answers Radio waves to connect wireless clients to the wired network
What is a Backbone Network? - Answers - High speed network linking organization's LANs
- Makes information transfer possible between departments
- Provides connections to MANs and WANs
Twisted Pair - Answers Functions in the same way as in LANs
Fiber Optic - Answers More commonly chosen because it provides higher data rates
Examples of Network Design - Answers - Customer service department
- Accounting department
- HR department
Tier 1 ISPs - Answers Connect and exchange data at Internet exchange points (e.g. AT&T, Sprint)
Tier 2 ISPs - Answers Rely on tier 1 ISPs to transmit their messages to other ISPs (e.g. Comcast,
BellSouth) and provide services to their customers and to tier 3 ISPs
Tier 3 ISPs - Answers Sell internet access to individuals
Peering - Answers ISPs at the same tier do not charge each other
Framing in Data Link Layer - Answers - Data link layer uses Ethernet protocol
- PDU: Ethernet Frame
- Frame header includes MAC address of he next computer/router to which the messages will
be sent
Address Resolution Protocol (ARP) - Answers Resolves IP address to MAC address
Bluetooth - Answers - Creates a Personal Area Network (PAN)
- Links up to 8 devices within 10 meter area
Personal Area Network (PAN) - Answers Within range of an individual person, typically within a
range of 10 meters
Local Area Network (LAN) - Answers Up to 500 meters; an office or floor of a building
Campus Area Network (CAN) - Answers Up to 1000 meters; a college campus or corporate
facility
Metropolitan Area Network (MAN) - Answers A city or metropolitan area
Wide Area Network (WAN) - Answers Transcontinental or global area
Why use a LAN? - Answers 1. Information sharing
- improves decision making
- reduce data duplication and inconsistency
2. Resource sharing
- printers can be shared by many clients
3. Software sharing
- reduces costs, simplifies maintenance and upgrades
LAN Components - Answers 1. Clients
2. Servers
3. Network Interface Cards (NICs)
4. Network Circuits
5. Switches / access points
, 6. Software
Network Interface Card (NIC) - Answers - Also called network cards and network adaptors
- Commonly built into motherboards
- NICs contain unique MAC address
Network Circuit - Answers - Physical matter used to carry data transmissions
- Guided media: transmission flows along physical medium
- Wireless (Radiated) media: transmission flows through air
Guided Media - Answers - Coaxial
- Twisted Pair
- Fiber Optic
Wireless Media - Answers Radio
Switches - Answers Link network cables from different devices
Access Points - Answers Radio waves to connect wireless clients to the wired network
What is a Backbone Network? - Answers - High speed network linking organization's LANs
- Makes information transfer possible between departments
- Provides connections to MANs and WANs
Twisted Pair - Answers Functions in the same way as in LANs
Fiber Optic - Answers More commonly chosen because it provides higher data rates
Examples of Network Design - Answers - Customer service department
- Accounting department
- HR department
Tier 1 ISPs - Answers Connect and exchange data at Internet exchange points (e.g. AT&T, Sprint)
Tier 2 ISPs - Answers Rely on tier 1 ISPs to transmit their messages to other ISPs (e.g. Comcast,
BellSouth) and provide services to their customers and to tier 3 ISPs
Tier 3 ISPs - Answers Sell internet access to individuals
Peering - Answers ISPs at the same tier do not charge each other
