Fichas
network
Fichas del conjunto (29)
- 1What is a computer network?two or more computers connected together to share information and resources.
- 2Describe a LANa LAN is a local area network and works is local areas
- 3Describe a WANa WAN is a wide area network which works in a large area
- 4What are the advantages of a computer network?file sharing
resource sharing
increasing storage capacity - 5What are the disadvantages of a computer network?viruses
hacking
firewall - 6What devices are needed to produce a LAN?network adaptor
network medium
cable connectors
power supply's
hub/switch/router
network software - 7What is the purpose of a NIC?it makes your computer connect to the network
- 8What is the purpose of a Router?they send data between networks
- 9What is the purpose of a Hub?connects multiple computers or other networks devices together
- 10What is the purpose of a Switch?a device that connects nodes together also it reduces network traffic to make the network run faster
- 11What is the purpose of a WAP?A wireless access point (WAP) is a hardware device or configured node on a local area network (LAN) that allows wireless capable devices and wired networks to connect through a wireless standard, including Wi-Fi or Bluetooth.
- 12What is the difference between a Hub and a Switch?Ethernet hubs, switches, and routers are all devices that let you connect one or more computers to other computers, networked devices, or even other networks.
- 13Identify what the Internet and World Wide Web areThe Internet is a massive network of networks, a networking infrastructure. It connects millions of computers together globally, forming a network in which any computer can communicate with any other computer as long as they are both connected to the Internet
- 14Identify the purpose of ISP’sa company that provide access to the internet for a monthly fee
- 15What is an IP address?a unique string of numbers separated by full stops that identifies each computer using the Internet Protocol to communicate over a network
- 16What does HTTP stand for?Hyper Text Transfer Protocol
- 17What is a URL?the address of a World Wide Web page.
- 18How is a URL constructed?A URL can be thought of as the "address" of a web page and is sometimes referred to informally as a "web address." ... A URL is made up of several parts. The first part is the protocol, which tells the web browser what sort of server it will be talking to in order to fetch the URL
- 19What are the three different network topologies?bus
ring
tree - 20What are the advantages of a Star topology?Easy to install and wire.
No disruptions to the network when connecting or removing devices.
Easy to detect faults and to remove parts. - 21What are the disadvantages of a Star topology?Requires more cable length than a linear topology.
If the hub, switch, or concentrator fails, nodes attached are disabled.
More expensive than linear bus topologies because of the cost of the hubs, etc - 22What are the advantages of a Ring topology?All data flows in one direction, reducing the chance of packet collisions.
A network server is not needed to control network connectivity between each workstation.
Data can transfer between workstations at high speeds.
Additional workstations can be added without impacting performance of the network. - 23What are the disadvantages of a Ring topology?All data being transferred over the network must pass through each workstation on the network, which can make it slower than a star topology.
The entire network will be impacted if one workstation shuts down.
The hardware needed to connect each workstation to the network is more expensive than Ethernet cards and hubs/switches. - 24What are the advantages of a bus topologyIt works well when you have a small network.
Easiest network topology for connecting computers or peripherals in a linear fashion.
Requires less cable length than a star topology. - 25What are the disadvantages of a Bus topologyDifficult to identify the problems if the whole network goes down.
It can be hard to troubleshoot individual device issues.
Not great for large networks.
Terminators are required for both ends of the main cable.
Additional devices slow the network down.
If a main cable is damaged, the network fails or splits into two. - 26List examples of data that need to be kept securemaking regular backups of files
protecting yourself against viruses by running anti-virus software
using a system of passwords so that access to data is restricted - 27What is HTTPS and what is it used for?HTTP is the underlying protocol used by the World Wide Web and this protocol defines how messages are formatted and transmitted, and what actions Web servers and browsers should take in response to various commands
- 28What is encryptionthe process of converting information or data into a code, especially to prevent unauthorized access
- 29What is decryption?DE scrambling
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- Descripción
- Fichas sobre network, creado por Harley Fieldhouse el 04/12/2017.
- Creado por
- Harley Fieldhouse
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