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This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Compilers knowledge and support exam preparation. Choose a topic below to get started.
1. |
The regular expression denote a language comprising all possible strings of even length over the alphabet (0,1) is? |
A. | 1 + 0(1+0)* |
B. | (0+1)(1+0)* |
C. | (1+0) |
D. | (00+0111+10)* |
Answer» E. | |
2. |
The production Grammar is {S->aSbb, S->abb} is? |
A. | type-3 grammar |
B. | type-2 grammar |
C. | type-1 grammar |
D. | type-0 grammar |
Answer» C. type-1 grammar | |
3. |
Give a production grammar for the language L = {x/x ∈ (a,b)*, the number of a’s in x is multiple of 3}. |
A. | {S->bS, S->b,S->aA, S->bA, A->aB, B->bB, B->aS, S->a} |
B. | *, the number of a’s in x is multiple of 3}.a) {S->bS, S->b,S->aA, S->bA, A->aB, B->bB, B->aS, S->a}b) {S->aS,S->bA,A->bB,B->bBa,B->bB} |
C. | {S->aaS,S->bbA,A->bB,B->ba} |
D. | None of the mentioned |
Answer» B. *, the number of a’s in x is multiple of 3}.a) {S->bS, S->b,S->aA, S->bA, A->aB, B->bB, B->aS, S->a}b) {S->aS,S->bA,A->bB,B->bBa,B->bB} | |
4. |
Which of the following String can be obtained by the language L = {ai b2i / i >=1}? |
A. | aaabbbbbb |
B. | aabbb |
C. | abbabbba |
D. | aaaabbbabb |
Answer» B. aabbb | |
5. |
Let R1 and R2 be regular sets defined over alphabet ∑ then? |
A. | R1 UNION R2 is regular |
B. | R1 INTERSECTION R2 is regular |
C. | ∑ INTERSECTION R2 IS NOT REGULAR |
D. | R2* IS NOT REGULAR |
Answer» B. R1 INTERSECTION R2 is regular | |
6. |
Give a production grammar that specified language L = {ai b2i >= 1}. |
A. | {S->aSbb,S->abb} |
B. | {S->aSb, S->b} |
C. | {S->aA,S->b,A->b} |
D. | None of the mentioned |
Answer» B. {S->aSb, S->b} | |