His latest obsession is a toasted sandwich-maker called SN0008022444811. In order to win her affections he plans

His latest obsession is a toasted sandwich-maker called SN0008022444811. In order to win her affections he plans to buy her a chocolate muffin from her favourite shop—Fat Finbar’s World of Cake—before stealing a bunch of flowers from the local cemetery, giftwrapping the presents, and presenting both gifts to her. The solutions in parts (a) and (b) both involve a get() method returning an Object reference. Choose one of these four applications and explain how the underlying distributed system can ensure that the appropriate quality ofthen, When could you utilize both approaches. What standards would you consider while choosing between a model in light of queueing hypothesis and one in view of reenactment? Give all uses of σ τ required in a typing derivation for N1; prove that there does not exist a typing derivation for N2. [7 marks] (v) Relate the bits in the code words forming your prefix code to the ‘yes/no’ questions that you proposed in (i). [2 marks] Explain what is meant by a foreign key in the relational model. How could you use foreign keys to represent a database described by an E-R model in relational form? To what extent are the two approaches to data modelling complementary? [6 marks] Choose two of the above design models, representations or evaluation methods, and explain how they would be done differently if the design project was following an agile rather than spiral project management approach. Better save the new path and work the change in length through the chain of successor nodes if necessary. Distinguish the temperament and figure of each unmitigated logic. Utilizing the absolute logic rules, decide if the it are substantial or invalid to follow contentions. Assuming the logic is invalid, list the rule(s) it disregards. If one developer writes code for the client program and another developer writes code for the server program, and both developers carefully follow the rules of the RFC, then the two programs will be able to interoperate. The lasting romance remains, alas, just a dream. What is a principal type scheme? Give the principal type scheme for N1, or explain informally why it does not have one. [4 marks] By adding protected void add(Object o) {mArray.add(o);} to the ConstrainedArray class, the mArray field can be made private. Show how this would affect your IntListArray class and discuss the advantages of the change from protected to private. [5 marks] (c) The solutions in parts (a) and (b) both involve a get() method returning an Object reference. (i) Explain why this is bad practice. [1 mark] Prolog program to work with binary trees. Your code should not rely on any library predicates and you should assume that the interpreter is running without occurs checking. In each case, would you discard this feature if your employer let you, or insist on retaining it (even covertly) should your employer not value it?