2.1 Layers of communication An internetwork is a network of networks, composed of terminals, switches and communication media. The overall objective of an internetwork is to allow communication between two (or more) networks. This simple description hides the complications that arise in real networks, in which the types of medium vary, transmission errors occur, transmission links fail, switches fail or become congested, equipment is produced by different manufacturers, networks are owned and maintained by differ
1.1 Abbreviations used within this unit While reading this subject you may come across the following abbreviations.
AAL – ATM adaptation layer
API – application program interface
ARP –
address resolution protocol
ATM –
asynchronous transfer mode
B-ISDN –
broadband ISDN
CLP –
cell loss priority
DNS –
domain name system
FTP –
file transfer protocol
HTTP –
hypertext transfer protocol
Next steps
BBC News 24, Sky News, CNN – we live in an era where news has become almost instantaneous. This unit will look at how news is gathered and the technology used for its dissemination. You will also be encouraged to examine how information might be manipulated by questioning its reliability.
7 Summary
BBC News 24, Sky News, CNN – we live in an era where news has become almost instantaneous. This unit will look at how news is gathered and the technology used for its dissemination. You will also be encouraged to examine how information might be manipulated by questioning its reliability.
6.4 Pictures
BBC News 24, Sky News, CNN – we live in an era where news has become almost instantaneous. This unit will look at how news is gathered and the technology used for its dissemination. You will also be encouraged to examine how information might be manipulated by questioning its reliability.
Exploring The Forces of Tension
Students will review their knowledge of tension and focus on tensile loads and failure caused by them.
Strum Along
Music and sound are two different concepts that share much in common. Determining the difference between the two can sometimes be difficult due to the subjective nature of deciding what is or is not music. The goal of this activity is to take something constructed by students, that would be normally classified as just sound and have the class work together to make what can be perceived to be music. Students will construct a basic stringed instrument made of a shoebox and rubber bands. This activ
Floating and Falling Flows
Students discover fluid dynamics related to buoyancy through experimentation and optional photography. Using one set of fluids, they make light fluids rise through denser fluids. Using another set, they make dense fluids sink through a lighter fluid. In both cases, they see and record beautiful fluid motion. Activities are also suitable as class demonstrations. The natural beauty of fluid flow opens the door to seeing the beauty of physics in general.
Introduction to Statistics
Introduction to Statistics. Random Variable, Mean, Variance, Standard Deviation and Mathematical Expectation. Discrete Distributions: Bernoulli trials and Bernoulli distribution, geometric distribution, Poisson distribution. Continuous Distributions: random variables of the continuous type, uniform distribution, exponential distribution, gamma distribution, chi-square distribution, normal distribution, t-distributions. Estimation: biased and unbiased esimators, convidence intervals for means, co
Estructura dels mercats turístics
En aquesta assignatura s'ofereixen els conceptes bàsics que han de permetre a l'estudiant introduir-se plenament en l'àmbit de coneixement de l'economia turística i situar l'estudi del turisme a partir la comprensió de l'operativitat dels seus mercats i de les decisions que adopten els agents econòmics. En un país eminentment turístic com el nostre té un interès indubtable la observació del funcionament d'aquests mercats, observant amb detall l'estructura ja sigui dels denominats merca
Kidney Physiology
Introduction to the physiology of the kidney, examining the processes by which the kidneys filter blood, control body pH and eliminate the waste products of metabolism from the body.
Zuivere stoffen en mengsels Wat zijn zuivere stoffen en mengsels? Welke soorten mengsels bestaan er? Hoe gebeurt het scheiden van mengsels? In dit pakketje vind je een toets, lesvoorbereiding en leerlingenbundel.
Het Gravensteen Tijdens een bezoek aan het Gravensteen (Gent) kunnen de leerlingen een opgavenblad invullen. Het Poortgebouw, het Opperhof, de grafelijke kamers, de kelder, de audiëntiezaal, de kerker, de grote zaal... worden achtereenvolgens besproken. Er …
