ZScaler interview questions

The most frequent LeetCode problems tagged to ZScaler. This is a data-only page. For process and behavioral prep, use the coding guide and behavioral guide.

Based on 2 distinct problems tagged to ZScaler in the last 6 months (0 in the last 30 days, 0 in the last 3 months, 16 all-time) across two open datasets of LeetCode company tags. Tags are user-reported, so treat frequency as a signal, not a promise.

Difficulty mix (last 6 months): Medium 50%, Hard 50%

Most tagged topics (share of problems): Hash Table 50%, Linked List 50%, Design 50%, Doubly-Linked List 50%, Math 50%, String 50%, Recursion 50%

Watch out: ZScaler has thin LeetCode data. Weight the reported questions and the format notes above more than this list.

Most frequent problems

Ranked by frequency, weighted toward the last 30 days. Classics like Two Sum sit near the top of almost every company's list because users tag them everywhere. Solve those fast. The signature list below is more specific to this company.

#	Problem	Difficulty	Last seen	Topics
1	LRU Cache	Medium	6 months	Hash Table, Linked List, Design, Doubly-Linked List
2	Integer to English Words	Hard	6 months	Math, String, Recursion

Signature problems

Problems where ZScaler accounts for a large share of all recent tags across companies. These are the most ZScaler-specific questions in the data.

#	Problem	Difficulty	Last seen	Topics
1	Integer to English Words	Hard	6 months	Math, String, Recursion

Sources

• liquidslr/leetcode-company-wise-problems and snehasishroy/leetcode-companywise-interview-questions, merged by scripts/build_question_data.py.

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