Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβperfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a non-generating symbol in a CFG?
π‘ Hint: Think about symbols that don't lead to valid outputs.
Question 2
Easy
How can you identify unreachable symbols in a CFG?
π‘ Hint: Consider whether you can reach the symbol through any rules.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What are non-generating symbols?
- Symbols that produce terminal strings
- Symbols that cannot derive terminal strings
- Symbols that are reachable from the start symbol
π‘ Hint: Think of what these symbols can do.
Question 2
True or False: Unreachable symbols can be derived from the start symbol.
- True
- False
π‘ Hint: Think about how symbols connect in a CFG.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the CFG defined by productions P: A β B | C; B β D; D β E; E β Ξ΅; C β c, identify all non-generating and unreachable symbols.
π‘ Hint: Trace the paths and identify the symbols that cannot lead to terminal outputs.
Question 2
In a CFG with S β A | B; A β a; B β C; C β Ξ΅, identify unreachable symbols and justify your choice.
π‘ Hint: Evaluate the connections to the start symbol.
Challenge and get performance evaluation