The GATE Grind

GATE 2024 DA – Previous Year Questions with Solutions

All 65 questions of GATE 2024 DA with answers and explanations. Read each question, then practise it by topic or as a full paper.

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  1. Question 1 (1 mark, Multiple choice) – If '→' denotes increasing order of intensity, then the meaning of the words [sick → infirm → moribund] is analogous to [silly → → daft]. Which one of…
  2. Question 2 (1 mark, Multiple choice) – The 15 parts of the given figure are to be painted such that no two adjacent parts with shared boundaries (excluding corners) have the same color. The…
  3. Question 3 (1 mark, Multiple choice) – How many 4-digit positive integers divisible by 3 can be formed using only the digits 1, 3, 4, 6, 7, such that no digit appears more than once in a…
  4. Question 4 (1 mark, Multiple choice) – The sum of the following infinite series is 2 + 12 + 13 + 14 + 18 + 19 + 116 + 127 +
  5. Question 5 (1 mark, Multiple choice) – In an election, the share of valid votes received by the four candidates A, B, C, and D is represented by the pie chart shown. The total number of…
  6. Question 6 (2 marks, Multiple choice) – Thousands of years ago, some people began dairy farming. This coincided with a number of mutations in a particular gene that resulted in these people…
  7. Question 7 (2 marks, Multiple choice) – The probability of a boy or a girl being born is 1/2. For a family having only three children, what is the probability of having two girls and one…
  8. Question 8 (2 marks, Multiple choice) – Person 1 and Person 2 invest in three mutual funds A, B, and C. The amounts they invest in each of these mutual funds are given in the table. Mutual…
  9. Question 9 (2 marks, Multiple choice) – Three different views of a dice are shown in the figure below. The piece of paper that can be folded to make this dice is
  10. Question 10 (2 marks, Multiple choice) – Visualize two identical right circular cones such that one is inverted over the other and they share a common circular base. If a cutting plane passes…
  11. Question 11 (1 mark, Multiple choice) – Consider the following statements: (i) The mean and variance of a Poisson random variable are equal. (ii) For a standard normal random variable, the…
  12. Question 12 (1 mark, Multiple choice) – Three fair coins are tossed independently. T is the event that two or more tosses result in heads. S is the event that two or more tosses result in…
  13. Question 13 (1 mark, Multiple choice) – Consider the matrix M = bmatrix 2 & -1 \\ 3 & 1 bmatrix. Which ONE of the following statements is TRUE?
  14. Question 14 (1 mark, Multiple choice) – Consider performing depth-first search (DFS) on an undirected and unweighted graph G starting at vertex s. For any vertex u in G, d[u] is the length…
  15. Question 15 (1 mark, Multiple choice) – For any twice differentiable function f: R R, if at some x* R, f'(x*) = 0 and f''(x*) > 0, then the function f necessarily has a at x = x*.
  16. Question 16 (1 mark, Multiple choice) – Match the items in Column 1 with the items in Column 2 in the following table: Column 1 Column 2 --- --- (p) First In First Out (i) Stacks (q) Lookup…
  17. Question 17 (1 mark, Multiple choice) – Consider the dataset with six datapoints: \(x 1, y 1), (x 2, y 2), , (x 6, y 6)\, where x 1 = bmatrix1\\0bmatrix, x 2 = bmatrix0\\1bmatrix, x 3 =…
  18. Question 18 (1 mark, Multiple choice) – Match the items in Column 1 with the items in Column 2 in the following table: Column 1 Column 2 --- --- (p) Principal Component Analysis (i)…
  19. Question 19 (1 mark, Multiple choice) – Euclidean distance based k-means clustering algorithm was run on a dataset of 100 points with k = 3. If the points bmatrix1\\1bmatrix and…
  20. Question 20 (1 mark, Multiple choice) – Given a dataset with K binary-valued attributes (where K > 2) for a two-class classification task, the number of parameters to be estimated for…
  21. Question 21 (1 mark, Multiple choice) – Consider performing uniform hashing on an open address hash table with load factor = nm < 1, where n elements are stored in the table with m slots.…
  22. Question 22 (1 mark, Multiple choice) – For any binary classification dataset, let S B Rd d and S W Rd d be the between-class and within-class scatter (covariance) matrices, respectively.…
  23. Question 23 (1 mark, Multiple choice) – Let h 1 and h 2 be two admissible heuristics used in A* search. Which ONE of the following expressions is always an admissible heuristic?
  24. Question 24 (1 mark, Multiple choice) – Consider five random variables U, V, W, X, and Y whose joint distribution satisfies: P(U, V, W, X, Y) = P(U)P(V)P(W U, V)P(X W)P(Y W) Which ONE of the…
  25. Question 25 (1 mark, Multiple choice) – Consider the following statement: In adversarial search, – pruning can be applied to game trees of any depth where is the (m) value choice we have…
  26. Question 26 (1 mark, Multiple choice) – Consider a database that includes the following relations: Defender(name, rating, side, goals) Forward(name, rating, assists, goals) Team(name, club,…
  27. Question 27 (1 mark, Multiple choice) – Let the minimum, maximum, mean and standard deviation values for the attribute income of data scientists be ₹46000, ₹170000, ₹96000, and ₹21000,…
  28. Question 28 (1 mark, Multiple select) – Consider the following tree traversals on a full binary tree: (i) Preorder (ii) Inorder (iii) Postorder Which of the following traversal options…
  29. Question 29 (1 mark, Multiple select) – Let x and y be two propositions. Which of the following statements is a tautology /are tautologies?
  30. Question 30 (1 mark, Numerical answer) – Consider sorting the following array of integers in ascending order using an in-place Quicksort algorithm that uses the last element as the pivot. 60…
  31. Question 31 (1 mark, Numerical answer) – Consider the following two tables named Raider and Team in a relational database maintained by a Kabaddi league. The attribute ID in table Team…
  32. Question 32 (1 mark, Numerical answer) – The fundamental operations in a double-ended queue D are: insertFirst(e) – Insert a new element e at the beginning of D. insertLast(e) – Insert a new…
  33. Question 33 (1 mark, Numerical answer) – Let f: R R be the function f(x) = 11 + e-x. The value of the derivative of f at x where f(x) = 0.4 is (rounded off to two decimal places).
  34. Question 34 (1 mark, Numerical answer) – The sample average of 50 data points is 40. The updated sample average after including a new data point taking the value of 142 is .
  35. Question 35 (1 mark, Numerical answer) – Consider the 3 3 matrix M = bmatrix 1 & 2 & 3 \\ 3 & 1 & 3 \\ 4 & 3 & 6 bmatrix. The determinant of (M2 + 12M) is .
  36. Question 36 (2 marks, Multiple choice) – A fair six-sided die (with faces numbered 1, 2, 3, 4, 5, 6) is repeatedly thrown independently. What is the expected number of times the die is thrown…
  37. Question 37 (2 marks, Multiple choice) – Let f: R R be a function. f(x) = cases -x, & if x < -2 \\ ax2 + bx + c, & if x [-2, 2] \\ x, & if x > 2 cases Which ONE of the following choices gives…
  38. Question 38 (2 marks, Multiple choice) – Consider the following Python code: Which ONE of the following is the output of this code?
  39. Question 39 (2 marks, Multiple choice) – Consider the function computeS(X) whose pseudocode is given below: Which ONE of the following values is returned by the function computeS(X) for X =…
  40. Question 40 (2 marks, Multiple choice) – Let F(n) denote the maximum number of comparisons made while searching for an entry in a sorted array of size n using binary search. Which ONE of the…
  41. Question 41 (2 marks, Multiple choice) – Consider the following Python function: What does this Python function fun() do? Select the ONE appropriate option below.
  42. Question 42 (2 marks, Multiple choice) – Consider the table below, where the (i, j)th element of the table is the distance between points x i and x j. Single linkage clustering is performed…
  43. Question 43 (2 marks, Multiple choice) – Consider the two neural networks (NNs) shown in Figures 1 and 2, with ReLU activation (ReLU(z) = \0, z\, z R). R denotes the set of real numbers. The…
  44. Question 44 (2 marks, Multiple choice) – Consider a state space where the start state is number 1. The successor function for the state numbered n returns two states numbered n+1 and n+2.…
  45. Question 45 (2 marks, Multiple choice) – Consider the following sorting algorithms: (i) Bubble sort (ii) Insertion sort (iii) Selection sort Which ONE among the following choices of sorting…
  46. Question 46 (2 marks, Multiple select) – Given the relational schema R = (U, V, W, X, Y, Z) and the set of functional dependencies: \U V, U W, WX Y, WX Z, V X\ Which of the following…
  47. Question 47 (2 marks, Multiple select) – Select all choices that are subspaces of R3. Note: R denotes the set of real numbers.
  48. Question 48 (2 marks, Multiple select) – Which of the following statements is/are TRUE? Note: R denotes the set of real numbers.
  49. Question 49 (2 marks, Multiple select) – Let R be the set of real numbers, U be a subspace of R3 and M R3 3 be the matrix corresponding to the projection on to the subspace U. Which of the…
  50. Question 50 (2 marks, Multiple select) – Consider the function f: R R where R is the set of all real numbers. f(x) = x44 - 2x33 - 3x22 + 1 Which of the following statements is/are TRUE?
  51. Question 51 (2 marks, Multiple select) – Consider the directed acyclic graph (DAG) below: [Figure: a DAG with the edges P → Q, R → Q, Q → S, Q → V, S → U and V → T.] Which of the following…
  52. Question 52 (2 marks, Multiple select) – Let H, I, L, and N represent height, number of internal nodes, number of leaf nodes, and the total number of nodes respectively in a rooted binary…
  53. Question 53 (2 marks, Multiple select) – Consider the following figures representing datasets consisting of two-dimensional features with two classes denoted by circles and squares. [Figure:…
  54. Question 54 (2 marks, Multiple select) – Let game(ball, rugby) be true if the ball is used in rugby and false otherwise. Let shape(ball, round) be true if the ball is round and false…
  55. Question 55 (2 marks, Multiple select) – An OTT company is maintaining a large disk-based relational database of different movies with the following schema: Movie(ID, CustomerRating)…
  56. Question 56 (2 marks, Numerical answer) – Let X be a random variable uniformly distributed in the interval [1, 3] and Y be a random variable uniformly distributed in the interval [2, 4]. If X…
  57. Question 57 (2 marks, Numerical answer) – Let X be a random variable exponentially distributed with parameter > 0. The probability density function of X is given by: f X(x) = e- x for x 0 and…
  58. Question 58 (2 marks, Numerical answer) – Consider two events T and S. Let T denote the complement of the event T. The probability associated with different events are given as follows: P(T) =…
  59. Question 59 (2 marks, Numerical answer) – Consider a joint probability density function of two random variables X and Y: f X,Y(x, y) = cases 2xy, & 0 < x < 2,\ 0 < y < x \\ 0, & otherwise…
  60. Question 60 (2 marks, Numerical answer) – Evaluate the following limit: x 0((x2 + 1) x)x2 = .
  61. Question 61 (2 marks, Numerical answer) – Let u = [1, 2, 3, 4, 5]T, and let 1, 2, 3, 4, 5 be the singular values of the matrix M = uuT (where uT is the transpose of u). The value of i=15 i is…
  62. Question 62 (2 marks, Numerical answer) – Details of ten international cricket games between two teams "Green" and "Blue" are given in Table C. This table consists of matches played on…
  63. Question 63 (2 marks, Numerical answer) – Given the two-dimensional dataset consisting of 5 data points from two classes (circles and squares) and assume that the Euclidean distance is used to…
  64. Question 64 (2 marks, Numerical answer) – Given the following Bayesian Network consisting of four Bernoulli random variables and the associated conditional probability tables: [Figure: a…
  65. Question 65 (2 marks, Numerical answer) – Two fair coins are tossed independently. X is a random variable that takes a value of 1 if both tosses are heads and 0 otherwise. Y is a random…