Section B (40 marks): This section has 3 questions. Answer all questions in this section. 1.(10 marks) Given the following relation schema T, with attribute A as the primary key, answer the questions below. T Relation A B D al a2 a3 a4 61 b1 b2 b2 c2 c2 c1 c3 d1 di d1 d1 (1) (ii) What functional dependencies FD can you see exist between the attributes of this relation above? What update, (iii) delete and (iv) insertion anomalies may or not be present in this T relation above. Explain with specific examples using FDs, keys and the specific attributes affected in this database. Que 1 (2.5 marks for each of to iv for a total of 10 marks) FDs (2.5 marks) (i) Update anomalies (2.5 marks) (111) Delete anomalies (2.5 marks) (iv) Insertion anomalies (2.5 marks) Section B (40 marks): This section has 3 questions. Answer all questions in this section. 1.(10 marks) Given the following relation schema T, with attribute A as the primary key, answer the questions below. T Relation A B D al a2 a3 a4 61 b1 b2 b2 c2 c2 c1 c3 d1 di d1 d1 (1) (ii) What functional dependencies FD can you see exist between the attributes of this relation above? What update, (iii) delete and (iv) insertion anomalies may or not be present in this T relation above. Explain with specific examples using FDs, keys and the specific attributes affected in this database. Que 1 (2.5 marks for each of to iv for a total of 10 marks) FDs (2.5 marks) (i) Update anomalies (2.5 marks) (111) Delete anomalies (2.5 marks) (iv) Insertion anomalies (2.5 marks)