Karteikarten
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Karten in diesem Stapel (31)
- 1Can all disks work on computersIt depends what type of disk it is
- 2What is a computer network?Two or more computers connected together to share information and resources.
- 3Describe a LANA LAN is a local area network
- 4Describe a WANA WAN is a wide area network
- 5What are the advantages of a computer network?Resource sharing – using network-connected peripheral devices like printers, scanners and copiers, or sharing software between multiple users, saves money.
- 6What are the disadvantages of a computer network?Purchasing the network cabling and file servers can be expensive. Managing a large network is complicated, requires training and a network manager usually needs to be employed
- 7What devices are needed to produce a LAN?Network Adapter. A computer needs a network adapter to connect to a network. ...
Network Medium. Wired networks need cable. ...
Cable Connectors. ...
Power Supply. ...
Hub/Switch/Router. ... - 8What is the purpose of a NIC?The NIC contains the electronic circuitry required to communicate using a wired connection or a wireless connection .
- 9What 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.
- 10What is the purpose of a Hub?A hub, also called a network hub, is a common connection point for devices in a network.
- 11What is the purpose of a Switch?The basic function that any switch is supposed to perform is to receive information from any source connected to it and dispatch that information to the appropriate destination only.
- 12What 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.
- 13What is the difference between a Hub and a Switch?Each has two or more connectors called ports into which you plug in the cables to make the connection.
- 14What is the Internet?The Internet is the global system of interconnected computer networks that use the Internet protocol suite to link devices worldwide.
- 15What is the World Wide Web?The internet is a huge network of computers all connected together.
- 16What 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.
- 17What is the purpose of an ISP?An Internet service provider (ISP) is an organization that provides services accessing and using the Internet.
- 18What is an IP address?An Internet Protocol address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
- 19What does HTTP stand forHTTP stands for Hypertext Transfer Protocol Secure
- 20What is a URL?A Uniform Resource Locator, colloquially termed a web address, is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it.
- 21How is a URL constructed?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.
- 22What are the three different network topologies?Star, Bus and Ring.
- 23What are the advantages of a Star topology?As compared to Bus topology it gives far much better performance, signals don’t necessarily get transmitted to all the workstations.
- 24What are the disadvantages of a Star topology?Too much dependency on central device has its own drawbacks. If it fails whole network goes down.
- 25What are the advantages of a Ring topology?Even when the load on the network increases, its performance is better than that of Bus topology.
- 26What are the disadvantages of a Ring topology?Each packet of data must pass through all the computers between source and destination. This makes it slower than Star topology.
- 27What are the advantages of a Bus topology?Cable length required for this topology is the least compared to other networks.
- 28What are the disadvantages of a Bus topology?There is a limit on central cable length and number of nodes that can be connected.
- 29What 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.
- 30What is encryptionencryption is the process of encoding a message or information in such a way that only authorised parties can access it.
- 31What is decryption?Decryption is the process of taking encoded or encrypted text or other data and converting it back into text that you or the computer can read and understand.
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- Karteikarten am Ohne Titel, erstellt von Qayum Soyed am 06/10/2017.
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