Classic Classic Quiz Backus-Naur Form by 047551 047551 90 played - 8 yrs ago Explain the need for, and be able to create and apply BNF (Backus-Naur Form) and syntax diagrams. QUIZ 9 QUESTIONS hard 1 What does : : = mean? Is equalIs defined byIs like 2 What is | ? AndDivOr 3 Which one is a recursive statement? : : = |: : = |: : = | 4 State the need for BNF. To explain syntax diagramTo unambiguously define the syntax of a computer languageTo show the rules of the system 5 : : = 0|1|2|3|4|5|6|8|9 : : = A|B|C|D|E : : = | State how the rules have been broken by the invalid staff code A2c? Only one letter is allowedThere's a digitThere are letters 6 State the purpose of syntax diagrams. To demonstrate the flow of the systemTo show how the system worksTo define terms unambiguously for a computer language 7 What does the arrow show in syntax diagram? Go right.The arrow indicates the flow.The arrow indicates the direction in which you are allowed to read the overall diagram. 8 What do you call the circle in syntax diagram? Terminal symbolStartInstruction 9 How do you read this diagram? Read the digits from the top to bottom.Begin to read from left and follow a single path.Read the digits from the bottom to top. A mistake in this Quiz ? Contact the author Commentaires
