CIT342 TMA

CIT342 List of Questions

Q1 A grammar G is ambiguous if there exists some string w ?? L(G) for which ?��?��?..
there are two or more distinct derivation trees
there are two or more distinct leftmost derivations
there are two or more distinct rightmost derivations.
All of the options

Q2 The reduction u ??v is called a ?��?��?��?��?��?..
direct production
direct variable
direct function
None of the Options

Q3 The pumping lemma is based on the ?��?��?��?��?. principle and it can be used to prove that an infinite language is not regular.
pigeon hose
pigeon pole
pigeon hole
None of the Options

Q4 The Pumping Lemma says that: ?��?��?��?.
If an infinite language is regular, it can be defined by a DFA.
The DFA has some finite number of states (say, n).
Since the language is infinite, some strings of the language must have length > n.
All of the options

Q5 A regular language is given in a standard representation if it is specified by one of:
A regular expression.
A regular notion.
A regular grammar.
A finite automaton (DFA or NFA).

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