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Recent questions tagged ugcnetnov2017-ii

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5. Consider the graph given below : Use Kruskal’s algorithm to find a minimal spanning tree for the graph. The List of the edges of the tree in the order in which they are choosen is ? (1) AD, AE, AG, GC, GB, BF (2) GC, GB, BF, GA, AD, AE (3) GC, AD, GB, GA, BF, AE (4) AD, AG, GC, AE, GB, BF
asked Mar 29, 2018 in Graph Theory kavikeve 1.8k views
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asked Feb 8, 2018 in Programming student2018 211 views
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8. Let P and Q be two propositions, ¬ (P ↔ Q) is equivalent to : (1) P ↔ ¬ Q (2) ¬ P ↔ Q (3) ¬ P ↔ ¬ Q (4) Q → P
asked Feb 1, 2018 in Mathematical Logic kavikeve 919 views
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9. Negation of the proposition › x H(x) is : (1) › x ¬ H(x) (2) ∀ x ¬ H(x) (3) ∀ x H(x) (4) ¬ x H(x)
asked Feb 1, 2018 in Mathematical Logic kavikeve 685 views
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Use kruskal's algorithm to find a minimal spanning tree for the graph.the list of edges of the tree in the order in which they are chosen is ? (1)AD,AE,AG,GC,GB,BF (2)GC,GB,BF,GA,AD,AE (3)GC,AD,GB,GA,BF,AE (4)AD,AG,GC,AE,GB,BF
asked Nov 15, 2017 in Algorithms Lavanya 2017 416 views
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The Associativity of which of the following operators is Left to Right , in c++ ? (1).Unary Operator (2).Logical Not (3).Array element access (4).addressof
asked Nov 13, 2017 in Programming kavikeve 356 views
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What is the normal order of activities in which traditional software testing is organized? Integration Testing System Testing Unit Testing Validation Testing Code: c), a), b), d) c), a), d), b) d), c), b), a) b), d), a), c)
asked Nov 9, 2017 in IS&Software Engineering Devwritt 2.9k views
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Which of the following is not a key issue stressed by an agile philosophy of software engineering? A. The importance of self-organizing teams as well as communication and collaboration between team members and customers. B. Recognition that change represents opportunity. C. Emphasis on rapid delivery of software that satisfies the customer. D. Having a separate testing phase after a build phase.
asked Nov 9, 2017 in IS&Software Engineering Devwritt 1.1k views
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Software re-engineering is concerned with: A. Re-constructing the original source code from the existing machine (low-level) code program and modifying it to make it more user-friendly. B. Scrapping the source code of a software and re-writing it entirely from ... systems to make them more maintainable. D. Translating source code of an existing software to a new machine (low-level) language.
asked Nov 9, 2017 in IS&Software Engineering Devwritt 1.6k views
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Software does not wear-out in the traditional sense of the term, but software does tend to deteriorate as it evolves, because: Software suffers from exposure to hostile environments. Defects are more likely to arise after software has been used often. Multiple change requests introduce errors in component interactions. Software spare parts become harder to harder.
asked Nov 9, 2017 in IS&Software Engineering Devwritt 1.1k views
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Two atomic operations permissible on Semaphores are ________ and _______. A. wait, stop B. wait, hold C. hold, signal D. wait, signal
asked Nov 9, 2017 in Operating System Devwritt 1k views
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Which module gives control of the CPU to the process selected by the short-term scheduler? (1) Dispatcher (2) Interrupt (3) Scheduler (4) Threading
asked Nov 9, 2017 in Operating System Devwritt 3.3k views
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Suppose there are six files F1, F2, F3, F4, F5, F6 With corresponding sizes 150 KB, 225 KB, 75 KB, 60 KB, 275 KB and 65 KB respectively. The files are to be stored on a sequential device in such a way that optimizes access time. In what order should the files be stored? A. F5, F2, F1, F3, F6, F4 B.F4, F6, F3, F1, F2, F5 C. F1, F2, F3, F4, F5, F6 D. F6, F5, F4, F3, F2, F1
asked Nov 9, 2017 in Operating System Devwritt 1.1k views
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In __________ disk scheduling algorithm, the disk head moves from one end to other end of the disk, serving the requests along the way. When the head reaches the other end, it immediately returns to the beginning of the disk without serving any requests on the return trip. A. LOOK B. SCAN C. C-LOOK D. C-SCAN
asked Nov 9, 2017 in Operating System Devwritt 1.7k views
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In Distributed system, the capacity of a system to adapt the increased service load is called _________. A. Tolerance B. Scalability C. Capability D. Loading
asked Nov 9, 2017 in Distributed Computing Devwritt 976 views
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Match the description of several parts of a classic optimizing compiler in List-I, with the names of those parts in List-II: List-I List-II a) A part of a compiler that is responsible for recognizing syntax i) optimizer b) A part of compiler that takes as input a stream of characters and ii) Semantic Analysis ... ) A. iii) iv) ii) i) B. iv) iii) ii) i) C. ii) iv) i) iii) D. ii) iv) iii) i)
asked Nov 9, 2017 in Compiler Design Devwritt 954 views
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A list of n strings, each of length n, is sorted into lexicographic order using merge –sort algorithm. The worst case running time of this computation is: 1) O(n log n) 2) O(n2 log n) 3) O(n2+log n) 4) O(n3)
asked Nov 9, 2017 in Algorithms Devwritt 244 views
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Let G be an undirected connected graph with distinct edge weight. Let Emax be the edge with maximum weight and Emin the edge with minimum weight. Which of the following statements is false? 1) Every minimum spanning tree of G must contain Emin. 2) If Emax is in ... spanning tree, then its removal must disconnect G. 3) No minimum spanning tree contains Emax. 4) G has a unique minimum spanning tree.
asked Nov 9, 2017 in Graph Theory Devwritt 302 views
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The following numbers are inserted into an empty binary search tree in the given order: 10, 1, 3, 5, 15, 12, 16. What is the height of the binary search tree? A. 3 B. 4 C. 5 D. 6
asked Nov 9, 2017 in DS Devwritt 724 views
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Consider an array representation of an n element binary heap where the elements are stored from index 1 to index n of the array. For the element stored at index i of the array (i<= n), the index of the parent is: A. floor((i+1)/2) B. ceiling((i+1)/2) C. floor(i/2) D. ceiling(i/2)
asked Nov 9, 2017 in DS Devwritt 1.4k views
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________ SQL command changes one or more fields in a record. A. LOOK-UP B. INSERT C. MODIFY D. CHANGE
asked Nov 9, 2017 in Databases Devwritt 1.6k views
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In RDBMS, different classes of relations are created using_________ technique to prevent modification anomalies. 1) Functional Dependencies 2) Data integrity 3) Referential integrity 4) Normal Forms
asked Nov 9, 2017 in Databases Devwritt 1.6k views
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Match the following with respect to RDBMS: a) Entity integrity i) enforces some specific business rule that do not fall into entity or domain b) Domain integrity ii) Rows can't be deleted which are used by other records c) Referential integrity iii) enforces valid entries for a column d) User defined integrity iv) No ... (ii) 2) (iv) (iii) (ii) (i) 3) (iv) (ii) (iii) (i) 4) (ii) (iii) (iv) (i)
asked Nov 9, 2017 in Databases Devwritt 945 views
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In SQL,_______ is an Aggregate function. 1) SELECT 2) CREATE 3) AVG 4) MODIFY
asked Nov 9, 2017 in Databases Devwritt 260 views
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Which of the following is/are true with reference to ‘view’ in DBMS? (a) A ‘view’ is a special stored procedure executed when certain event occurs. (b) A ‘view’ is a virtual table, which occurs after executing a pre-compiled query. Code: (1) Only (a) is true (2) Only (b) is true (3) Both (a) and b) are true (4) Neither (a) nor (b) are true
asked Nov 9, 2017 in Databases Devwritt 802 views
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Which of the following is not correct (in C++)? 1) Class templates and function templates are instantiated in the same way. 2) Class templates differ from function templates in the way they are initiated. 3) Class templates is initiated by defining an object using the template argument. 4) Class templates are generally used for storage classes.
asked Nov 9, 2017 in Object Oriented Programming Devwritt 1.3k views
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Which of the following is not correct for virtual function in C++? 1) Must be declared in public section of class. 2) Virtual function can be static. 3) Virtual function should be accessed using pointers. 4) Virtual function is defined in base class.
asked Nov 9, 2017 in Others Devwritt 2.2k views
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A member function can always access the data in________, (in C++). 1) the class of which it is member 2) the object of which it is a member 3) the public part of its class 4) the private part of its class
asked Nov 9, 2017 in Others Devwritt 1.2k views
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the associativity of which of the following operators is Left to Right, in C++? 1) Unary Operator 2) Logical not 3) Array element access 4) addressof
asked Nov 9, 2017 in Others Devwritt 368 views
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