QUESTION 42 Which of the states in the DFA produced using the powerset method from the following NFA (with initial state 0) are final states (not including unreachable states)? Select all that apply. b, ɛ 1 b a 2 O (0} O {1} O {2} O {0,1} O (0,2} O {1,2} O (0,1,2} QUESTION 43 In the following dataflow program: 1: a <-x+y 2: b <-x+z 3: a <-a+b 4: return a True or false: variable 'a' is live-in at node 1. O True O False

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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QUESTION 42
Which of the states in the DFA produced using the powerset method from the following NFA (with initial state 0) are final states (not including unreachable states)? Select all that apply.
b, ɛ
1
b
a
2
O (0}
O {1}
O {2}
O {0,1}
O (0,2}
O {1,2}
O (0,1,2}
QUESTION 43
In the following dataflow program:
1: a <-x+y
2: b <-x+z
3: a <-a+b
4: return a
True or false: variable 'a' is live-in at node 1.
O True
O False
Transcribed Image Text:QUESTION 42 Which of the states in the DFA produced using the powerset method from the following NFA (with initial state 0) are final states (not including unreachable states)? Select all that apply. b, ɛ 1 b a 2 O (0} O {1} O {2} O {0,1} O (0,2} O {1,2} O (0,1,2} QUESTION 43 In the following dataflow program: 1: a <-x+y 2: b <-x+z 3: a <-a+b 4: return a True or false: variable 'a' is live-in at node 1. O True O False
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