A log-processing script reads a line like 'ERROR: disk full' and must extract the words after the colon, sort them alphabetically, and join them with a hyphen. The script currently has the line stored in a variable `line`. Which code snippet accomplishes this?

words = line.split(':'); result = '-'.join(sorted(words[1].split()))

words = line.split(':'); result = '-'.join(sorted(words))

words = line.split(); result = '-'.join(sorted(words[1:]))

words = line.split(':')[1].split(); result = '-'.join(sorted(words))

A list of names ['Alice', 'Bob', 'Charlie'] must be combined into a single string with names separated by '; '. Which code does this?

result = '; '.join(sorted(names))

A script must find the position of the first space in a sentence, but only within the first 20 characters. If no space is found, it should return -1. Which code does this?

pos = sentence.index(' ', 0, 20)

pos = sentence.rfind(' ', 0, 20)

pos = sentence.find(' ', 0, 20)

A list of strings ['banana', 'Apple', 'cherry'] must be sorted case-insensitively. Which code achieves this?

sorted_list = sorted(fruits, key=str.lower)

sorted_list = sorted(fruits, reverse=True)

sorted_list = sorted(fruits, key=str.upper)

A developer is writing a function that extracts the substring between the first and last occurrence of a delimiter in a string. The function must raise a ValueError if the delimiter is missing. Which implementation is correct?

start = s.find(delim); end = s.rfind(delim); return s[start+len(delim):end]

start = s.find(delim); end = s.rindex(delim); return s[start+len(delim):end]

start = s.index(delim); end = s.rfind(delim); return s[start+len(delim):end]

start = s.index(delim); end = s.rindex(delim); return s[start+len(delim):end]

Python InstitutePCAP - Certified Associate Python Programmer

Domain 3Objective 3

PCAP-31-03 3.3 Employ Built-In String Methods PCAP-31 Practice Questions (Page 4)

Part of the Strings domain, which accounts for 18% of the PCAP-31 exam. Python Institute does not publish an official question count, but from its 65-minute exam (~25–45 total, ~5–8 in this domain), expect 2–3 from this objective — we provide 55 practice questions to prepare you well beyond it. (estimate)

55questions here

11free pages

8concepts

18%of the exam

Questions 16–20

16application · medium
A log-processing script reads a line like 'ERROR: disk full' and must extract the words after the colon, sort them alphabetically, and join them with a hyphen. The script currently has the line stored in a variable `line`. Which code snippet accomplishes this?
Select an answer first
17application · easy
A list of names ['Alice', 'Bob', 'Charlie'] must be combined into a single string with names separated by '; '. Which code does this?
Select an answer first
18application · medium
A script must find the position of the first space in a sentence, but only within the first 20 characters. If no space is found, it should return -1. Which code does this?
Select an answer first
19application · medium
A list of strings ['banana', 'Apple', 'cherry'] must be sorted case-insensitively. Which code achieves this?
Select an answer first
20expert · hard
A developer is writing a function that extracts the substring between the first and last occurrence of a delimiter in a string. The function must raise a ValueError if the delimiter is missing. Which implementation is correct?
Select an answer first

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