Question: State and explain the four structural layers of a programming Language. lexical, syntactic, contextual, and semantic. Differentiate between Structured and Unstructured Programming b ) What

State and explain the four structural layers of a programming Language.
lexical, syntactic, contextual, and semantic.
Differentiate between Structured and Unstructured Programming
b) What are the constructs of structured programming
c) State advantages and disadvantages of structured programming
10. How does Finite Automata help build lexical analysers? Illustrate with a DFA that identifies variable names and integers in a language.

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