Gate
2
iit
Quiz [ MCQ ]
Questions List
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Lexical Analysis
Question
In a compiler the module that checks every character of the source text is called
Answer
Indicate which of the following well-formed formula are valid:
The proposition p ^ (~ p v q) is
Let E1 and E2 be two entities in an E/R diagram with simple single-valued attributes. R1 and R2 are two relationships between E1 and E2, where R1 is one-to-many and R2 is many-to-many. R1 and R2 do not have any attributes of tables required to represent this situation in the relational model?
Which one of the following is false? Read ^ as AND, v as OR, ~ as NOT, -> as one way implication and <-> as two way implication.
The number of substrings (of all lengths inclusive) that can be formed from a character string of length n is