UNIVERSITY EXAMINATIONS: 2020/2021
EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN
INFORMATION TECHNOLOGY / BUSINESS I. T/ APPLIED
COMPUTING/ INFO. SECURITY & FORENSICS/ SOFTWARE DEV.
BIT 3207/ BBIT 2110/ BAC 3106/ BSD 2207/ BISF 2106:
ARTIFICIAL INTELLIGENCE/ PRINCIPLES OF A.I
FULLTIME/ PART TIME/DISTANCE LEARNING
DATE: DECEMBER, 2021 TIME: 2 HOURS
INSTRUCTIONS: Question ONE IS COMPULSORY, Choose TWO OTHER Questions
QUESTION ONE (20 Marks) Compulsory
a). Expert systems is one of the main branches artificial intelligence, discuss five ways in which
it can be applied in commerce (5 Marks)
b). Describe each of the following inference techniques as applied in artificial intelligence
i). Forward chaining
ii). Inductive reasoning
iii). Case based reasoning (6 Marks)
c). The diagram below shows a directed graph, determine the order in which the nodes will be
printed using the depth first algorithm starting with node H (4 Marks)
d). Outline four test items that a computer needs to pass in order to be considered intelligent
QUESTION TW0 (15 marks)
a). Using an example in each case, explain the following elements of an intelligence agent
v). Agent function (5 Marks)
b). Construct a semantic network representations of the following statements
• Martha is Kenyan and she is a scientist.
• Scientists work in a research lab (5 Marks)
c). Write predicate logic statements for the following statements. Indicate the knowledge that
is inferred from the statements;– (5 Marks)
i). Tilapia is a name of fish.
ii). All fishes belong to the class of vertebrates
iii). All vertebrates either live on land or in water.
QUESTION THREE (15 marks)
a). Convert the following argument into symbolic representation using propositional logic
If Edith eats her vegetables, then she can have a cookie. Edith ate her vegetables.
Therefore, Edith gets a cookie. (5 Marks)
b). Describe five characteristics of a good knowledge representation technique
c). Given the sample prolong program, explain clearly the meaning of each statement
❖ Happy (joy).
❖ Listen to Music (Mary) .
❖ Plays Keyboard (joy);- Listens to music (joy).
❖ Happy (joy)
❖ Play keyboard (many):- happy (Mary).
❖ Listens to music (Mary).
QUESTION FOUR (15 marks)
a). Show that the following expression are logically equivalent using a truth table
¬ (P ∧ Q) = (¬P) ∨ (¬Q) (6 Marks)
b). Discuss the possible dangers of artificial intelligence as expressed by critics of
advancements in artificial intelligence (3 Marks)
c). Explain the following terms as used in Artificial intelligence (6 Marks)
i). Natural Language processing
ii). Machine vision