Question

Could I get these answered and explained to me? I'm new to system level programming and rather lost on how to answer or think through these. I'll definitely provide a thumbs up to those who can give an explanation along with their answer. Thanks a bunch!

match(es) for expression (maybe each given basic/extended multiple Choose 1. regular no correct match, if no correct option is given then write none as your anser 3), matches or correct and describe the of matched pattern string 5), 6), 11) for 4), ab+a' (extended regex) |a) d)aabbaa e.g. ababa c)abba b) aba е)a Answer should The matched b,c Pattern string begin and least once between end with 'a аnd b' at оссurs and ending leading a') Note: 1 are basic regexes 41 to 'a[ab]+a (a)ababa (f) 1) (b)aaba (c)aabab(d)aabbaa (e)aa aaa 2) (a) Abc)) (e)abc) (b)a (bc)?(c)a(bc (g)a (bc) (d)a (fJab pu (b)wi (c)nd 3) (a) wind (d)dd (e)will (fii Ta-z]+[a-z] (а) а+b+c X+1 (e 4) (b) b (c) (d) X х+а

Answer 1

Ques 1  a [ab]+ a

Answer 1: Option C is correct

a [ab]+ a means , matches a string that has a followed by a or b

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Ques 2  a(bc)*

Answer2: Option E is correct.

a(bc)* , means it matches a string that has a pattern bc in it, *, means that it searches for the pattern bc zero or more times.

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Ques 3 .[ind]

Answer 3: Option A is correct.

.[ind] , it means a string containing some letters before ind. It means it searches a string which have ind in it, it may be that it i in the end or in between.

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Ques 4 [a-z]+[a-z]

Answer 4: Option C is correct

[a-z]+[a-z], it searches for the letter in lowercase a to z and matches with other list pattern given i.e[a-z] one or more times.

it basically compares that the string should contain a-z letters and + means it compares it with other set i.e, [a-z] one or more times. In this question it means that the string should contain alphabetic characters only.