Answered: Which of the following best describes…

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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Question

Which of the following best describes the existence of undecidable problems?

A. Undecidable problems are problems for which more than one algorithm solves the problem and computer scientists have not yet chosen the algorithm they believe is best

B. Undecidable problems are problems for which an algorithm can be written that will produce the same output for at least two possible inputs

C. Undecidable problems are problems for which an algorithm can be written that produces a correct output for all inputs but in an unreasonable time

D. An undecidable problem is a problem for which no algorithm can be constructed that always produces a correct output

Expert Solution

Step 1

Correct answer explanation:

D. Undecidable-problems are those for which no solution or algorithm is available that can consistently generate the correct results.

Incorrect answer explanation:

A. Algorithms exist for undecidable-problems, but there is no guarantee that the algorithms will answer the issue correctly every time.

B. The undecidable-problem could have several methods, but that does not guarantee that the correct-output will be produced two-times with the same-inputs.

C. While an algorithm could resolve an issue with a proper-result for all inputs, undecidable-problems are those that do not always yield the same-outcome for certain-inputs.