Fibre optic - Study guides, Class notes & Summaries

AQA Physics AS Glossary Exam Questions and Answers 100% Pass Antineutrino The antiparticle of a neutrino. Brittle fracture When a stress applied to a brittle material causes tiny cracks at the material's surface to get bigger until the material breaks completely. Absolute refractive index The ratio between the speed of light in a vacuum and the speed of light in a material. Antineutron The antiparticle of a neutron. Antinode A point of maximum amplitude on a stationary...

Digital Convergence is the gradual merger of computing and communications into a new information environment, in which the same information is exchanged among many kinds of equipment, using the language of computers. Digital Signals that computer uses to process a series of datas 0s and 1s, off and on. Analog signals that use wave variations, continuously changing. Can an analog data be converted to digital data? yes, by using modems Modem short for modulate/ d...

COMPUTER SCIENCE EXAM WITH QUESTIONS & VERIED ANSWERS LATEST UPDATE ALREADY GRADED A+ disadvantages of networking computers - management is complicated and expensive - viruses can infiltrate one computer and spread across network quickly topology SDD Solid State Drive - non volatile storage - no moving parts - read/write quicker than HDD - low power consumption ASCII American Standard Code for Information Interchange - substitutes a number for each character - stored in binary usi...

Local area network (LAN) - Answers-A type of network that covers a small area one a single site and are often found in homes, businesses and schools. It allows files to be easily shared, hardware to be shared, updates to be applied to all devices simultaneously. Wide Area Network (WAN) - Answers-A connection of LAN networks that are in different locations. It is more expensive than a LAN but it allows for a organisation to connect multiple places together. Bandwidth - Answers-The amount of...

When the store-and-forward method of switching is in use, what part of the Ethernet frame is used to perform an error check? CRC in the trailer What is the purpose of the OSI physical layer? transmitting bits across the local media Why are two strands of fiber used for a single fiber optic connection? They allow for full-duplex connectivity. Which characteristic describes crosstalk? the distortion of the transmitted messages from signals carried in adjacent wires Which procedure ...

AQA Physics AS Glossary Actual Exam Questions And Correct Answers Antineutrino - ANSWER- The antiparticle of a neutrino. Brittle fracture - ANSWER- When a stress applied to a brittle material causes tiny cracks at the material's surface to get bigger until the material breaks completely. Absolute refractive index - ANSWER- The ratio between the speed of light in a vacuum and the speed of light in a material. Antineutron - ANSWER- The antiparticle of a neutron. Antinode - ANSWER- A po...

A1) Benefits of pentesting -ANSWER Manage risk. Increase business continuity. Minimise client-side attacks. Protect clients, partners and third-parties. Comply with regulation. A1) Pentest structure -ANSWER Reconnaissance (i.e. find live hosts, sweeping, find services, scanning, banner matching, find vulnerabilities). Target prioritisation (e.g. assess servers rather than printers). Testing of services and exploitation if applicable. Consult/Confirm with customer if ok to exploit. Inform cust...

edexcel a level geography paper 2 - advanced information Advantages and disadvantages of globalisation - ANS + Availability of information, increased world trade, prevent conflicts through understanding culture (westernisation) and drive improvement through competition and collaboration - shrinking world - Partially controlled by TNCs, interconnected markets can harm poorer economies, economies can become dependant on superpowers and fraud/cyber crime Development of jet aircraft has created a...

All computers connected to a network that participates directly in network communication are classified as. Hosts known as end devices. What is a server? Servers are computers with s software that enable them to provide services to devices on the network. File Server Stores corporate and user files in a central location. Client devices access this media. Peer to Peer Networking When one computer carries out the role of both client and server. End Device End de...

When the store-and-forward method of switching is in use, what part of the Ethernet frame is used to perform an error check? CRC in the trailer What is the purpose of the OSI physical layer? transmitting bits across the local media Why are two strands of fiber used for a single fiber optic connection? They allow for full-duplex connectivity. Which characteristic describes crosstalk? the distortion of the transmitted messages from signals carried in adjacent wires Which procedure ...