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- 1WHAT IS NICa NIC is It is an expansion card that enables a computer to connect to a network
- 2what is a routera router is a networking device that forwards data
- 3what is a wireless access pointa wireless access point is as hardware device
- 4what is a switchA network switch (also called switching hub, bridging hub, officially MAC bridge) is a computer networking device that connects devices together on a computer network by using packet switching to receive, process, and forward data to the destination device.
- 5what is a huba hub is a most basic networking device that connects multiple computers or other network devices together.
- 6what is a computer network?A computer network is a group of computer systems and other computing hardware devices that are linked together through communication
- 7describe LANA local area network (LAN) is a group of computers and associated devices that share a common communications line or wireless link to a server
- 8describe WanA wide area network (WAN) is a geographically distributed private telecommunications network that interconnects multiple local area networks (LANs). In an enterprise, a WAN may consist of connections to a company's headquarters
- 9What are the advantages of a computer networkAdvantages of computer networking. There are several distinct advantages to networking, including: ... Resource sharing – using network-connected peripheral devices like printers, scanners and copiers, or sharing software between multiple users, saves money.
- 10What are the disadvantages of a computer networkPurchasing 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.
If the file server breaks down the files on the file server become inaccessible. Email might still work if it is on a separate server. The computers can still be used but are isolated.
Viruses can spread to other computers throughout a computer network.
There is a danger of hacking, particularly with wide area networks. Security procedures are needed to prevent such abuse, eg a firewall - 11What devices are needed to produce a LANNetwork 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. ...
Network Software. - 12What is the difference between a Hub and a SwitchWhat's the difference between a Ethernet hub, a switch, and a router? Ethernet hubs, switches, and routers are all devices that let you connect one or more computers to other computers, networked devices, or even other network
- 13What is the Internetis a network of networks
- 14What is the World Wide Weba 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 ModemA 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 ISPAn Internet service provider (ISP) is an organization that provides services accessing and using the Internet. Internet service providers may be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned.
- 17What is an IP addressa unique string of numbers separated by full stops that identifies each computer using the Internet Protocol to communicate over a network
- 18what does HTTPSHTTPS stands for Hypertext Transfer Protocol Secure
- 19What is a URLhe address of a World Wide Web page.
- 20How is a URL constructedURL 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 th
- 21What are the three different network topologiesBus Topology. ...
Ring Topology. ...
Tree Topology - 22What are the advantages / disadvantages of a Star topologyn Star topology, all the components of network are connected to the central device called “hub” which may be a hub, a router or a switch. ... So it can be said that every computer is indirectly connected to every other node by the help of hub
- 23What are the advantages / disadvantages of a Ring topologyDisadvantages of 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 hardware needed to connect each workstation to the network is more expensive than Ethernet cards and hubs/switches
- 24What are the advantages / disadvantages of a Bus topologyAlternatively referred to as a line topology, a bus topology is a network setup in which each computer and network device are connected to a single cable or backbone. The following sections contain both the advantages and disadvantages of using a bus topology with your devices
- 25examples of data that need to be kept securemaking regular backups of files (backup copies should be stored in fireproof safes or in another building)
protecting yourself against viruses by running anti-virus software
using a system of passwords so that access to data is restricted
safe storage of important files stored on removable disks, eg locked away in a fireproof and waterproof safe - 26hat is HTTPS and what is it used forHTTP 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.
- 27What is encryptionthe process of converting information or data into a code, especially to prevent unauthorized access.
- 28What is decryptionDefinition - What does Decryption mean?
Decryption is the process of transforming data that has been rendered unreadable through encryption back to its unencrypted form.
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- Flashcards on Untitled, created by Harry Roper on 13/10/2017.
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- Harry Roper
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