
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Each of the following languages are composed of two simpler
languages over the alphabet Σ = {a, b, c}. For both, construct the
DFA’s for the simpler languages, then combine them using the
construction of the closure proof:
a. {w : w starts with a and has at most one b}
b. {w : w has an odd number of b’s or ends in c}
Expert Solution

arrow_forward
Step 1
A DFA, or deterministic finite automaton, is a type of finite automaton where the computation is unique. In other words, for any given input string, the machine will always follow the same path and end up in the same state. This property is why they are called "deterministic". DFAs read input strings one symbol at a time, and are therefore known as deterministic finite automata.
Step by stepSolved in 3 steps

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-engineering and related others by exploring similar questions and additional content below.Similar questions
- Find CFGs that for these regular languages over the alphabet Σ = {a, b}. Draw a Finite Automatafirst and use this to create the CFG.(a) The language of all words that contain the substring aba.(b) The language of all words that have an odd number letters and contains the string bb.(c) The language of all words that begin with the substring ba and contains an odd number ofletters.arrow_forwardFast plzarrow_forwardb) Write the CFG for the following language over alphabet Σ= {p,q ,r} L={ pqr, ppqrr, pppqrrr, ppppqrrrr, pppppqrrrrr, ……………..} Hint : pn q rn where n>=1 Note: derive at least four strings for the given CFGarrow_forward
- “Construct npda’s that accept the following regular languages: L1 = L(aaa*bab). L2 = L(aab*aba*). The union of L1 and L2.”arrow_forward(III) Assume the alphabet >= {a,b). Give the set all strings over Σ of length less than or equal to 2 including the null string. For each of the following languages, which of the above strings are in the language defined by the following regular expressions. (Show your work clearly). (i) (ii) (iii) (iv) (v) (vi) (vii) (viii) a*b* a(ba)*b a* + b* (aaa)* (a+b)*a(a+b)*b(a+b)*a(a+b)* aba + bab (2 + a)b (a + ba + bb)(a+b)*arrow_forwardLet language L over alphabet Σ = { a, b } be defined as L = { a'b* }, where i is a multiple of some given n and k is a multiple of some given m, all non- negative integers. In other words: L contains all strings consisting of: o A number of a's that is a multiple of n o followed by a number of b's that is a multiple of m. Lis Using a constructive method, show that for any given values of n and m,. regular.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Computer Networking: A Top-Down Approach (7th Edi...Computer EngineeringISBN:9780133594140Author:James Kurose, Keith RossPublisher:PEARSONComputer Organization and Design MIPS Edition, Fi...Computer EngineeringISBN:9780124077263Author:David A. Patterson, John L. HennessyPublisher:Elsevier ScienceNetwork+ Guide to Networks (MindTap Course List)Computer EngineeringISBN:9781337569330Author:Jill West, Tamara Dean, Jean AndrewsPublisher:Cengage Learning
- Concepts of Database ManagementComputer EngineeringISBN:9781337093422Author:Joy L. Starks, Philip J. Pratt, Mary Z. LastPublisher:Cengage LearningPrelude to ProgrammingComputer EngineeringISBN:9780133750423Author:VENIT, StewartPublisher:Pearson EducationSc Business Data Communications and Networking, T...Computer EngineeringISBN:9781119368830Author:FITZGERALDPublisher:WILEY

Computer Networking: A Top-Down Approach (7th Edi...
Computer Engineering
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:PEARSON

Computer Organization and Design MIPS Edition, Fi...
Computer Engineering
ISBN:9780124077263
Author:David A. Patterson, John L. Hennessy
Publisher:Elsevier Science

Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:9781337569330
Author:Jill West, Tamara Dean, Jean Andrews
Publisher:Cengage Learning

Concepts of Database Management
Computer Engineering
ISBN:9781337093422
Author:Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:Cengage Learning

Prelude to Programming
Computer Engineering
ISBN:9780133750423
Author:VENIT, Stewart
Publisher:Pearson Education

Sc Business Data Communications and Networking, T...
Computer Engineering
ISBN:9781119368830
Author:FITZGERALD
Publisher:WILEY