TM129 1-3 Flashcards
What are the 4 network types in regard to size?
- small home network. 2. SOHO 3. Medium to large network. 4.World Wide network
Types of personal data?
Volunteered, Observed and Inferred.
Common methods of Data Transmission? (types of signals)
- Electrical Signals. (electrical pulses through copper or aluminium wires.
- Optical Signals (light pulses through optic-fiber wires.
- Wireless Signals (infrared, microwave or radio wave signals through the air)
What is Bandwidth and how do we usually measure it?
Bandwidth is the capacity of a medium to carry data and we measure it with bits. For example. Kbps or Mbps or Gbps.
What influences Throughput?
1) Amount of data sent and received through the network
2) types of data transmitted
3) The latency between source and destination(the amount of network devices to reach the destination)
What are three advantages and disadvantages of peer-to-peer networks?
Positives: 1) Easy to set-up, 2)Cheap 3) We usually use other computers or printers in the network Negatives: 1) no central administration 2) no security 3) not scalable
What are the network infrastructure categories? Examples?
1) End devices(pc, laptop, tablet etc.) 2) Intermediate Devices(hub,switch, router) 3) Network Media (WAN signal, LAN signal, Wireless signal)
Give 6 examples of wireless networks
GPS, GSM(Global System for Mobile Communications), Bluetooth, NFC, 3G/4G, Wi-Fi
What are the 4 LAN components? Examples?
1) Hosts(PC, Server, Network printer), 2)Peripherals (webcam, local printer) 3)Network devices (router, hubs, switch) 4) Network Media(Wireless, cabling)
What are the three parts of the IP configuration, so a device can communicate with the network?
IP address (identifies the host), Subnet Mask (identifies the host’s network, Default Gateway (identifies the networking device that the host uses to access the internet or another remote network)
What is DNS?
Translates domain name to its IP address.
Where is the NIC installed, what does it mean and what do we use it for?
The Network Interface Card(NIC) is either integrated at the motherboard or it is a sperately installed card. We use it to physically connect to a network.
Explain the Manual(Static) and the automatic IP configuration.
The manual (or static) IP confirguratoin happens when an administrator provides and IP address manually.
The automatic IP configuration happens with the DHCP server that automatically provides and IP address when the host asks for one.
What are the two (2) Topologies for networks?
We have the physical and the logical Topology. a) With the Physical we can observe the exact position of each device and where the cables are exactly positioned in a building. b) The Logical Topology provides the IP addresses and how the devices are logically connected to each other.
Why is documentation crucial?
We need documentation when we grow our network. Such examples are when a) For troubleshooting b) To know where to add end devices and cables c) Structure the network, so that the traffic goes where it needs to.
