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(a) List all strings of lengths 2, 3, 4, 5 and 6 that are accepted by the DFA of Fig. 2. (b) From your answer to part (a), you can see that all accepted strings can be described using the substrings ab and aba. Use this observation to derive a regular expression description of the language accepted by the DFA of Fig. 2. (c) Use your answer to part (b) to construct an equivalent 3-state NFA that recognizes the same language. Explain why your NFA is correct.

(a) List all strings of lengths 2, 3, 4, 5 and 6 that are accepted by the DFA of Fig. 2. (b) From your answer to part (a), you can see that all accepted strings can be described using the substrings ab and aba. Use this observation to derive a regular expression description of the language accepted by the DFA of Fig. 2. (c) Use your answer to part (b) to construct an equivalent 3-state NFA that recognizes the same language. Explain why your NFA is correct.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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a b a 90 92) a 94 Figure 2: Figure For Qn. 6 Qn.6 (a) List all strings of lengths 2, 3, 4, 5 and 6 that are accepted by the DFA of Fig. 2. (b) From your answer to part (a), you can see that all accepted strings can be described using the substrings ab and aba. Use this observation to derive a regular expression description of the language accepted by the DFA of Fig. 2. (c) Use your answer to part (b) to construct an equivalent 3-state NFA that recognizes the same language. Explain why your NFA is correct.
Transcribed Image Text:a b a 90 92) a 94 Figure 2: Figure For Qn. 6 Qn.6 (a) List all strings of lengths 2, 3, 4, 5 and 6 that are accepted by the DFA of Fig. 2. (b) From your answer to part (a), you can see that all accepted strings can be described using the substrings ab and aba. Use this observation to derive a regular expression description of the language accepted by the DFA of Fig. 2. (c) Use your answer to part (b) to construct an equivalent 3-state NFA that recognizes the same language. Explain why your NFA is correct.
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