ITN 100 CORE MAIN QUESTIONS AND ANSWERS SET
A+
✔✔Network interface cards (NICs) - ✔✔Missing LAN Components:
1. Clients
2. Servers
3. ____________
4. Network cables
5. Hubs / switches / access points
6. Software
✔✔Network Cables - ✔✔Missing LAN Components:
1. Clients
2. Servers
3. Network Interface Cards (NICs)
4.___________
5. Hubs / switches / access points
6. Software
✔✔Hubs / switches / access points - ✔✔Missing LAN Components:
,1. Clients
2. Servers
3. Network Interface Cards (NICs)
4. Network cables
5.________________
6. Software
✔✔Software - ✔✔Missing LAN Components:
1. Clients
2. Servers
3. Network Interface Cards (NICs)
4. Network cables
5. Hubs / switches / access points
6.___________
✔✔Clients - ✔✔Devices on the network that request information from servers
✔✔Servers - ✔✔Devices on the network that deliver information or provide services to
clients
✔✔Network interface cards (NIC) - ✔✔-Also called network cards and network adapters
-Operate at layers 1 and 2
-Commonly built into motherboards
-Ethernet NICs contain unique MAC address
What is this?
✔✔Hubs and switches - ✔✔-Link cables from different devices, sometimes more than
one type of cabling
-Act as repeaters, reconstructing and strengthening incoming signals
, What is this?
✔✔Access Points (APs) - ✔✔Use radio waves to connect wireless clients to the wired
network (instead of connecting using hubs/switches)
✔✔Network Operating System (NOS) - ✔✔-Runs on devices and manage networking
functions
-E.g., Novel NetWare, Microsoft Windows Server, Linux
-E.g., Cisco IOS or JUNOS on routers
What is this?
✔✔Software - ✔✔-Provides directory services about LAN resources
-Network profiles specify resources that devices and users can access
What is this?
✔✔Logical - ✔✔How the network works conceptually?
✔✔Physical - ✔✔How the network is physically installed?
✔✔Physical star - ✔✔Hub-based Ethernet uses ______________ topology.
✔✔Switch-based Ethernet - ✔✔-Switch reads destination address of the frame and only
sends it to the interface (physical port) connected to a circuit
-Uses forwarding tables (also called MAC or CAM tables), which are similar to routing
tables
-Breaks up the collision domain
What is this?
✔✔Store and forward switching - ✔✔Frames re-transmitted after entire frame is
received and error check is complete.
HINT: slower, but fewer errors
✔✔Cut through switching - ✔✔Frames re-transmitted as soon as destination address
read
A+
✔✔Network interface cards (NICs) - ✔✔Missing LAN Components:
1. Clients
2. Servers
3. ____________
4. Network cables
5. Hubs / switches / access points
6. Software
✔✔Network Cables - ✔✔Missing LAN Components:
1. Clients
2. Servers
3. Network Interface Cards (NICs)
4.___________
5. Hubs / switches / access points
6. Software
✔✔Hubs / switches / access points - ✔✔Missing LAN Components:
,1. Clients
2. Servers
3. Network Interface Cards (NICs)
4. Network cables
5.________________
6. Software
✔✔Software - ✔✔Missing LAN Components:
1. Clients
2. Servers
3. Network Interface Cards (NICs)
4. Network cables
5. Hubs / switches / access points
6.___________
✔✔Clients - ✔✔Devices on the network that request information from servers
✔✔Servers - ✔✔Devices on the network that deliver information or provide services to
clients
✔✔Network interface cards (NIC) - ✔✔-Also called network cards and network adapters
-Operate at layers 1 and 2
-Commonly built into motherboards
-Ethernet NICs contain unique MAC address
What is this?
✔✔Hubs and switches - ✔✔-Link cables from different devices, sometimes more than
one type of cabling
-Act as repeaters, reconstructing and strengthening incoming signals
, What is this?
✔✔Access Points (APs) - ✔✔Use radio waves to connect wireless clients to the wired
network (instead of connecting using hubs/switches)
✔✔Network Operating System (NOS) - ✔✔-Runs on devices and manage networking
functions
-E.g., Novel NetWare, Microsoft Windows Server, Linux
-E.g., Cisco IOS or JUNOS on routers
What is this?
✔✔Software - ✔✔-Provides directory services about LAN resources
-Network profiles specify resources that devices and users can access
What is this?
✔✔Logical - ✔✔How the network works conceptually?
✔✔Physical - ✔✔How the network is physically installed?
✔✔Physical star - ✔✔Hub-based Ethernet uses ______________ topology.
✔✔Switch-based Ethernet - ✔✔-Switch reads destination address of the frame and only
sends it to the interface (physical port) connected to a circuit
-Uses forwarding tables (also called MAC or CAM tables), which are similar to routing
tables
-Breaks up the collision domain
What is this?
✔✔Store and forward switching - ✔✔Frames re-transmitted after entire frame is
received and error check is complete.
HINT: slower, but fewer errors
✔✔Cut through switching - ✔✔Frames re-transmitted as soon as destination address
read
