Data structures and algorithms (knowledge practice)
9
450
No formal exam (knowledge practice)
50 minutes in Exam Mode (about 1 minute per question)
60% recommended benchmark
Multiple choice and multiple select
Arrays, Strings and Bit Manipulation | Indexing, static and dynamic arrays, string operations and matching (Rabin-Karp, Boyer-Moore), palindromes, anagrams and bitwise operations (18%) Linked Lists | Singly, doubly, circular and XOR linked lists, pointer manipulation, traversal and the cost of each operation (10%) Stacks and Queues | Stack, queue, circular queue, deque and priority queue implementations, stacks built from queues and back, and classic stack applications (31%) Expression Notation and Evaluation | Infix, prefix and postfix conversion and evaluation, precedence and associativity (18%) Trees, Heaps and Hashing | Binary trees, BSTs, AVL, red-black and B-trees, heaps, tries, segment trees, union-find and hash tables (6%) Graph Algorithms | BFS, DFS, topological sort, Dijkstra, Bellman-Ford, Floyd-Warshall, minimum spanning trees and maximum flow (6%) Sorting and Searching | Comparison and non-comparison sorts, stability, quick sort partitioning and binary search (4%) Recursion, Greedy and Dynamic Programming | Greedy choice, memoization and tabulation, knapsack, LCS, edit distance, backtracking and Tower of Hanoi (6%) Complexity Analysis and Problem Classes | Big-O and Theta notation, loop analysis, the master theorem, amortised cost and NP-hardness (2%)
Computer science students preparing for exams Software engineers preparing for coding interviews Self-taught developers and bootcamp graduates filling gaps Anyone revising complexity analysis and classic algorithms
Graph Algorithms
A directed graph has the edges A to B (weight 4), A to C (1), C to B (2), B to D (1) and C to D (5). What shortest distance from A to D does Dijkstra's algorithm compute?
4
5
6
3
A
Dijkstra settles C at distance 1, then B at 3 through C (1 + 2, shorter than the direct edge of weight 4), then D at 4 through B (3 + 1, shorter than 1 + 5 = 6). The shortest path is A, C, B, D with length 4. 5 uses the direct edge from A to B, 6 goes A, C, D, and 3 is the distance to B, not to D.
Updated 2026Instant accessLifetime access

Data Structures and Algorithms Practice Tests: 9 Practice Tests and 450 Questions

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About this course

These practice tests are for computer science students, software engineers and anyone preparing for coding interviews or exams who want to check their knowledge of data structures and algorithms. They are a knowledge bank, not a certification exam, and a quick way to find the topics you need to revisit.

You get 9 practice tests with 50 questions each, 450 questions in total, including a timed Exam Mode test. Every question explains why the right answer is right and why the others are wrong, includes a hint, and is tagged with one of nine topic areas, from arrays, linked lists, stacks and queues to trees, graphs, sorting, dynamic programming and complexity analysis. The series was rebuilt for 2026: every answer key, code trace and complexity claim was checked, duplicates were rewritten into new questions, and 30 new questions were added on trees, hashing, sorting, graphs and complexity.

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practice exams

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What do I get with a single practice test?
You get the practice test in practice and exam modes for the certification you choose: timed, exam-style questions with explanations. It's a good fit if you're preparing for one exam.
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Upon successful payment, our system immediately creates your account, adds the course to your account in our LMS and sends you a walk-through video guide. You will receive emails from [email protected].
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The refund request must be submitted within 30 days of purchase. If a user has requested multiple refunds for the same course or has a history of excessive refund requests, Gururo reserves the right to limit or deny future refund requests. Full conditions are in our refund policy.
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Are single practice tests updated when the exam changes?
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Data Structures and Algorithms Practice Tests

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