In general, the binary search method needs no more than ……………. comparisons. A) [log2n]-1
B) [logn]+1
C) [log2n]
D) [log2n]+1

1 Answer

Answer :

D) [log2n]+1

Related questions

Description : State True or False. i) Binary search is used for searching in a sorted array. ii) The time complexity of binary search is O(logn). A) True, False B) False, True C) False, False D) True, True

Last Answer : D) True, True

Description : The number of disk pages access in B-tree search, where h is height, n is the number of keys, and t is the minimum degree, is: (A) θ(logn h*t) (B) θ(logt n*h) (C) θ(logh n) (D) θ(logt n)

Last Answer : Answer: D

Description : An ideal sort is an in-place-sort whose additional space requirement is ............... (A) O(log2n) (B) O(nlog2n) (C) O(1) (D) O(n)

Last Answer : Answer: C

Description : The number of comparisons done by sequential search is ……………… A) (N/2)+1 B) (N+1)/2 C) (N-1)/2 D) (N+2)/2

Last Answer : B) (N+1)/2

Description : The solution of recurrence relation, T(n) = 2T(floor (√n)) + logn is (A) O(n log log logn) (B) O(n log logn) (C) O(log logn) (D) O(logn log logn)

Last Answer : (D) O(logn log logn)

Description : State true or false. i) comparisons precede logical operations in java ii) assignment operations succeed increment operations iii) arithmetic operations succeed comparisons iv) x precede + A) i-true, ii-true, iii-false, ... false, ii-true, iii-false, iv-false D) i-true, ii-false, iii-false, iv-true

Last Answer : A) i-true, ii-true, iii-false, iv-true

Description : ................... comparisons are necessary in the worst case to find both the maximum and minimum of n numbers. (A) 2n-2 (B) n + floor(lg n) - 2 (C) floor(3n/2) - 2 (D) 2 lg n – 2

Last Answer : (C) floor(3n/2) - 2

Description : Consider the following statements: (a) Depth - first search is used to traverse a rooted tree. (b) Pre - order, Post-order and Inorder are used to list the vertices of an ordered rooted tree. (c) Huffman's algorithm is used to find an optimal ... (d) (C) (a) , (b) and (c) (D) (a), (b) , (c) and (d)

Last Answer : (D) (a), (b) , (c) and (d)

Description : What is the difference between linear and binary search?

Last Answer : A: Linear search does not require the array to be sorted, whereas, binary search requires that the array be sorted. Linear search checks for the search item in a linear fashion from the beginning cell till the end, ... tell what is control variable in your loop. So if your loop is for(int i = 1; i

Description : When does Binary search fail?

Last Answer : A: When the array is not sorted.

Description : In ……………, search start at the beginning of the list and check every element in the list. A) Linear search B) Binary search C) Hash Search D) Binary Tree search

Last Answer : A) Linear search

Description : A binary search tree whose left subtree and right subtree differ in hight by at most 1 unit is called A) AVL tree B) Red-black tree C) Lemma tree D) None of the above

Last Answer : A) AVL tree

Description : Suppose that we have numbers between 1 and 1000 in a binary search tree and want to search for the number 364. Which of the following sequences could not be the sequence of nodes examined? (A) 925, 221, 912, 245, 899, ... 926, 203, 912, 241, 913, 246, 364 (D) 3, 253, 402, 399, 331, 345, 398, 364 

Last Answer : (C) 926, 203, 912, 241, 913, 246, 364

Description : Consider the following binary search tree: If we remove the root node, which of the node from the left subtree will be the new root? (A) 11 (B) 12 (C) 13 (D) 16

Last Answer : (D) 16

Description : The runtime for traversing all the nodes of a binary search tree with n nodes and printing them in an order is (A) O(lg n) (B) O(n lg n) (C) O(n) (D) O(n2 ) 

Last Answer : (C) O(n) 

Description : Which of the following statements is false? (A) Optimal binary search tree construction can be performed efficiently using dynamic programming. (B) Breadth-first search cannot be used to find connected components of a graph. (C) ... used to find the components of a graph. (1) A (2) B (3) C (4) D 

Last Answer : Answer: 2

Description : What are the computers called that performs calculations and comparisons usually in the binary numbering system? A) Analog Computers B) Digital Computers C) Hybrid Computers D) None of above

Last Answer : Answer : B

Description : A method name myMethod( ) that needs two integer arguments is declared as A) public void myMethod( ); B) public void myMethod(int a, int b); C) public void myMethod(int a, b); D) public int myMethod(a, b);

Last Answer : B) public void myMethod(int a, int

Description : Consider the following transportation problem: The initial basic feasible solution of the above transportation problem using Vogel's Approximation Method(VAM) is given below: The solution of the ... degenerate solution (B) is optimum solution (C) needs to improve (D) is infeasible solution

Last Answer : (B) is optimum solution

Description : What is the best method to go for the game playing problem? (1) Optimal Search (2) Random Search (3) Heuristic Search (4) Stratified Search 

Last Answer : (3) Heuristic Search

Description : ………………. Is a directed tree in which outdegree of each node is less than or equal to two. A) Unary tree B) Binary tree C) Dinary tree D) Both B and C

Last Answer : B) Binary tree

Description : The command javac A) Converts a java program into binary code B) Converts a java program into bytecode C) Converts a java program into machine language D) None of the above.

Last Answer : B) Converts a java program into bytecode

Description : State True or False. i) While overloading operators new operator can be overloaded. ii) The binary operator such as +, -, * and must explicitly return a value. A) True, True B) True, False C) False, True D) False, False

Last Answer : C) False, True

Description : State true or false. i) An empty tree is also a binary tree. ii) In strictly binary tree, the outdegree of every node is either o or 2. A) True, False B) False, True C) True, True D) False, False

Last Answer : C) True, True

Description : The property of binary tree is A) The first subset is called left subtree B) The second subtree is called right subtree C) The root cannot contain NULL D) The right subtree can be empty

Last Answer : D) The right subtree can be empty

Description : Which of the following is not a binary operator in relational algebra? A) Join B) Semi-Join C) Assignment D) Project

Last Answer : D) Project

Description : Binary code "0" means ............ A) State of absence B) State of presence C) State of Negative D) State of Positive

Last Answer : B) State of presence

Description : What is a relationship called when it is maintained between two entities? (A) Unary (B) Binary (C) Ternary (D) Quaternary

Last Answer : (B) Binary

Description : Cartesian product in relational algebra is (A) a Unary operator. (B) a Binary operator. (C) a Ternary operator. (D) not defined.

Last Answer : (B) a Binary operator.

Description : The number of distinct binary images which can be generated from a given binary image of right M × N are (A) M + N (B) M × N (C) 2M + N (D) 2MN

Last Answer : (D) 2MN

Description : Binary symmetric channel uses (A) Half duplex protocol (B) Full duplex protocol (C) Bit oriented protocol (D) None of the above

Last Answer : (A) Half duplex protocol

Description : Which one of the following is decimal value of a signed binary number 1101010, if it is in 2's complement form? (A) -42 (B) - 22 (C) -21 (D) -106

Last Answer : (B) - 22

Description : Active X controls are Pentium binary programs that can be embedded in ............... (A) Word pages (B) URL pages (C) Script pages (D) Web pages

Last Answer : (D) Web pages

Description : A full binary tree with n leaves contains (A) n nodes (B) log2 n nodes (C) 2n –1 nodes (D) 2n nodes

Last Answer : (C) 2n –1 nodes 

Description : The Excess-3 decimal code is a self-complementing code because (A) The binary sum of a code and its 9’s complement is equal to 9. (B) It is a weighted code. (C) Complement can be generated by inverting each bit pattern. (D) The binary sum of a code and its 10’s complement is equal to 9.

Last Answer : Answer: A, C

Description : In a binary Hamming code the number of check digits is r then number of message digits is equal to: (A) 2r-1 (B) 2r-r-1 (C) 2r-r+1 (D) 2r+r-1

Last Answer : (B) 2r-r-1

Description : The inorder and preorder Traversal of binary Tree are dbeafcg and abdecfg respectively. The post-order Traversal is ............ (A) dbefacg (B) debfagc (C) dbefcga (D) debfgca

Last Answer : (D) debfgca

Description : Which one of the following array represents a binary max-heap? (A) [26, 13, 17, 14, 11, 9, 15] (B) [26, 15, 14, 17, 11, 9, 13] (C) [26, 15, 17, 14, 11, 9, 13] (D) [26, 15, 13, 14, 11, 9, 17]

Last Answer : (C) [26, 15, 17, 14, 11, 9, 13]

Description : The number of different binary trees with 6 nodes is ............. (A) 6 (B) 42 (C) 132 (D) 256

Last Answer : (C) 132

Description : Suppose you are given a binary tree with n nodes, such that each node has exactly either zero or two children. The maximum height of the tree will be (A) n/2 - 1 (B) n/2 + 1 (C) (n-1)/2 (D) (n+1)/2

Last Answer : (C) (n-1)/2

Description : Let C be a binary linear code with minimum distance 2t + 1 then it can correct upto ............bits of error. (1) t + 1 (2) t (3) t - 2 (4) t/2

Last Answer : (2) t 

Description : If X is a binary number which is power of 2, then the value of X&(X-1) is: (1) 11....11 (2) 00.....00 (3) 100.....0 (4) 000.....1

Last Answer : Answer: 2

Description : A network that needs human beings to manually route signals is called.... A) Fiber Optic Network B) Bus Network C) T-switched network D) Ring network

Last Answer : C) T-switched network

Description : A job has four pages A, B, C, D and the main memory has two page frames only. The job needs to process its pages in following order: ABACABDBACD Assuming that a page interrupt occurs when a new page is brought in the main ... replacement algorithms are (A) 9 and 7 (B) 7 and 6 (C) 9 and 8 (D) 8 and 6

Last Answer : (C) 9 and 8

Description : A byte addressable computer has a memory capacity of 2 m Kbytes and can perform 2 n operations. An instruction involving 3 operands and one operator needs a maximum of (A) 3m bits (B) m + n bits (C) 3m + n bits (D) 3m + n + 30 bits

Last Answer : (D) 3m + n + 30 bits

Description : Consider a uniprocessor system where new processes arrive at an average of five processes per minute and each process needs an average of 6 seconds of service time. What will be the CPU utilization ? (A) 80 % (B) 50 % (C) 60 % (D) 30 %

Last Answer : (B) 50 %

Description : The BCD adder to add two decimal digits needs minimum of (A) 6 full adders and 2 half adders (B) 5 full adders and 3 half adders (C) 4 full adders and 3 half adders (D) 5 full adders and 2 half adders

Last Answer : (D) 5 full adders and 2 half adders

Description : Which of the following is/are restriction(s) in classless addressing ? (A) The number of addresses needs to be a power of 2. (B) The mask needs to be included in the address to define the block. (C) The starting address must be divisible by the number of addresses in the block. (D) All of the above

Last Answer : (D) All of the above

Description : In distributed databases, location transparency allows for database users, programmers and administrators to treat the data as if it is at one location. A SQL query with location transparency needs to specify: (A) Inheritances (B) Fragments (C) Locations (D) Local formats 

Last Answer : (B) Fragments