BTEC-ICT questions and answers with accurate solution.Latest 2023

BTEC-ICT questions and answers with accurate solution.Latest 2023 what is a database A database is a structured collection of related data What is VOIP it stands for voice over internet proticol. an example would be skype. it is uesd for free conrisations over the internet. Two limitations of VOIP you need acecces to the internet, and a good signal. Netiquette agreed set of rules/protocols on the internet to keep a order society. TCP transmission control protocol. it is uesd to find wedsites and transfer thier data to the browser so you can see the web pages. what is Spam spam is a type of junk mail. it is a eamil sent to many resivers and is normal identical, they can be uesed mostly for advtising . read-only access it is the permission to access files or directories, but the user is not allowed to make changes they can only read them. what is a blog blogs are web-logs, they are fequently updated online jornals/ diarys. what is a chatrooms. large-scale interactive conferncing with many people involed in the same conversation at the same time. what is HTML HTML, is the computer language used to creat wed page it stands for, HyperText Markup Language ubiquitous computing The condition in which computing is so woven into the fabric of everyday life that it becomes indistinguishable. It could be in clothing and cars. ubiquitous means existing everywhere. cloud computing. cloud computing- a 'host' company provides an orgaisation with cloud space. the cloud alows users to access data anywhere, if they have internet conection. cloud storage. cloud storage- only the staorage access and retrievel are provided by the host. client slide processing Client slide processing is the use of a scripting language to create code that provides interactivity on a web page. the code is downloaded to the uesr's computer. An example would be a roll over. This is were some code is triggerd when the mouse moves over it, normally used for advertisment. benefits and disavantages of client -slide processing. benifits; speed,it is faster once the code has been downloaded and secrity, it more secure, because all actions take place in the downlaoaded page and not from the browser that could cause corruption and secury problems. Disadvantages. it is browser specific, it will not work the same on all browers so you might need differnrt versions for differnet browsers. computer speed, the speed of the downloaded depend on your computer speed. what is ISP They provided a gataway to the interne. They can provide additionals like, emails, and ever wep space for site development, technical support and troubleshooting. Troubleshooting Analyse and solve serious problems for a company or other organization. boolean logic (also kow as yes/no) It is a data type that repasents a vaule that is either true or fale. A good example of this is when a customer on a site is asked by a online company if thay have happy to recevie marketing material. the answer is then stored in a logical field as true for yes and false for no. what is an algorithm? A mathmatical step- by-step sequence used to work out calcuations or carry out instructions. Abstraction 'Computer scientists use abstraction to understand and solve problems, such as organizing data to be stored in a database.' What is programming? The process of developing and implementing various sets of instructions to enable a computer to do a certain task. These instructions are know as computer programs. Transmission modes. Devices on networks use many methods to communicate with each other and to transmit data. The three main types of transmission modes; they are simplex transmission, half-duplex transmission and full duplex transmission. simplex transmission a good example of simplex transmission is a radio broadcast; it only sends data in one direction. half-duplex transmission this allows two-way transmissions but not at the same time. For example a system could be being used to monitor and control manufacturing processes would be a half-duplex transmission. It sends messages to the control computer, which will respond with new settings; however they cannot send messages at the same time. Some networks use half-duplex to maximise bandwidth. Bandwidth A way of measuring how much data can be carried over a network. full duplex transmission A full duplex transmission allows two way communication at the same times, a good example would be telephone system (land or mobile). transmission modes diagram. Primary Key A single unique key uesed to identify each record in a database table. Purpose of Network protocols they allow mechians like computers to communicate with each other role of a web sever to store process and deliver web pages to clients packet switching a way of tranmissting data that breaks the message in to samll packets that will all be sent over in many differnet networks packet switching Benefits 1. reliable 2. cheap what is VLE. VLE stads fro Virtual learning emrovoment. e.g a wedsite were teacher and students can interacted, and discuse a subject. What is File Transfer Protocol (FTP) The File Transfer Protocol (FTP) is a standard network protocol used to transfer computer files from one host to another host over a TCP-based network, such as the Internet. RFID Radio-frequency identification (RFID) is the wireless use of electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects.