answer all Defifine the terms circuit and packet in the context of…
Question Answered step-by-step answer all Defifine the terms circuit and packet in the context of… answer all Defifine the terms circuit and packet in the context of communication systems.[5 marks](b) What sort of guarantee does circuit switching provide? [5 marks](c) What advantages does packet switching provide over circuit switching?[5 marks](d) Which of frequency division multiplexing, time division multiplexing and codedivision multiplexing lend themselves to circuit switching? Which to packetswitching? Explain why or why not in each case. [5 marks]4 Computer Graphics and Image Processing(a) Describe the z-buffffer polygon scan conversion algorithm. [10 marks](b) In ray tracing, once we have determined where a ray strikes an object, theillumination at the intersection point can be calculated using the formula:I = Iaka +XiIikd(Li · N) +XiIiks(Ri · V)nExplain what real effffect each of the three terms is trying to model and explainwhat each of the following symbols means, within the context of this formula:I, Ia, i, Ii , ka, kd, ks,Li, N, Ri, V, n[10 marks]3[TURN OVERCST.2001.6.4SECTION B5 Comparative Programming Languages(a) Brieflfly explain the concept of coroutines as used in BCPL and outlinethe effffect of the library functions createco(f, size), deleteco(ctpr),callco(cptr, val) and cowait(val). [10 marks](b) Outline how you would design a coroutine to merge, in increasing order, twoinfifinite streams of increasing integers supplied by two other coroutines.[5 marks](c) Brieflfly outline how you would implement an analogous merging mechanism inan object-oriented language, such as Java, that does not provide a coroutinemechanism. [5 marks]6 Compiler Construction(a) Describe one possible structure (e.g. ELF) of an object fifile. Illustrate youranswer by considering the form of object fifile which might result from thefollowing C program.int a = 1, b = -1;extern int g(int);extern int c;int f() { return g(a-b) + c; }It is not necessary to consider the exact instruction sequence, just issuesconcerning its interaction with the object fifile format. [10 marks](b) Describe how a linker takes a sequence of such programs and produces anexecutable fifile. [4 marks](c) Compare and contrast static and dynamic linking in a system using your objectfifile format. [6 marks]4CST.2001.6.57 Prolog for Artifificial IntelligenceA weighted binary tree can be defifined using compound terms in the following way.A node of the tree is represented by the term n(V, L, R), where V stands for thevalue of the node, and L and R stand for the left and right branches, respectively.A terminal node has the R and L components instantiated to the null list.Given an input tree T, write a Prolog program that constructs a tree of the sameshape as T, but in which the value of each node has been set to the value of themaximum value node in T.[Note: Maximum marks are available only for programs that perform this task inone recursive descent of the input tree, and which use no more than four clauses.] Computer Science Engineering & Technology Networking COMPUTER S 103 Share QuestionEmailCopy link Comments (0)
