Flashcards
Networks
Cards in this deck (22)
- 1What is a computer network?Two or more computers connect together
to share information and resources. - 2Describe a LAN?It is a local area network.
- 3Describe a WAN?It is a Wide Area Network.
- 4What are the advantages of a computer network?Resource sharing , sharing software.
- 5What are the disadvantages of a computer network?Need a qualified person to deal with it.
- 6What devices are needed to produce a LAN?Network Adaptor
Network Medium
Cable Connectors
Power Supply
Hub/Switch/Router
Network Software - 7What is the purpose of a NIC ?The NIC contains the electronic circuitry required to communicate using a wired connection (e.g., Ethernet) or a wireless connection (e.g., WiFi). A network interface card is also known as a network interface controller, network adaptor, or Local Area Network (LAN) adaptor.
- 8What is the purpose of a router?The main purpose of a router is to connect multiple networks and forward packets destined either for its own networks or other networks. A router is considered a layer-3 device because its primary forwarding decision is based on the information in the layer-3 IP packet, specifically the destination IP address.
- 9What is the purpose of a hub?A network hub, is a common connection point for devices in a network. Hubs are devices commonly used to connect segments of a LAN.
- 10What is a purpose of a switch?A switch is supposed to perform is to receive information from any source connected to it and dispatch that information to the appropriate destination only. This thing differentiates switches from hubs.
- 11What is a 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 from a switch and a hub?There are three main devices that work to connect one computer to another computer. A network hub, switch, and router can all perform this function
- 13What is the Internet?a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.
- 14What is the World Wide Web?The world wide web is an information system on the Internet which allows documents to be connected to other documents by hypertext links, enabling the user to search for information by moving from one document to another.
- 15What is the purpose of a Modem?A modem converts digital signals generated by the computer into analog signals which can be transmitted over a telephone or cable line and transforms incoming analog signals into their digital equivalents.
- 16What is the purpose of an ISP?An Internet service provider (ISP) is an organization that provides services accessing and using the Internet.
- 17What 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.
- 18What does HTTP stand for?HTTPS is Hyper Text Transfer Protocol
- 19What is a URL?The address of a World Wide Web page.
- 20How 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.
- 21What are the three different network topologies?Mesh Topology. Mesh Topology: In a mesh network, devices are connected with many redundant interconnections between network nodes.
Star Topology. Star Topology: In a star network devices are connected to a central computer, called a hub.
Bus Topology.
Ring Topology.
Tree Topology. - 22What are the advantages / disadvantages of a Star topology?
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- Flashcards on Networks, created by Saad Farooq on 04/12/2017.
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- Saad Farooq
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