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Unformatted text preview: Sheet1 Page 1 (1)(S)In the command scanf, h is used for Ans. Short int (2)(S)A process is defined as Ans. Program in execution 3.A thread is Ans. Detachable unit of executable code) 4.What is the advantage of Win NT over Win 95 Ans. Robust and secure 5.How is memory management done in Win95 Ans. Through paging and segmentation (6)(S)What is meant by polymorphism Ans. Redfinition of a base class method in a derived class (7)(S)What is the essential feature of inheritance Ans. All properties of existing class are derived 8.What does the protocol FTP do Ans. Transfer a file b/w stations with user authentification 9.In the transport layer ,TCP is what type of protocol Ans. Connection oriented 10.Why is a gateway used Ans. To connect incompatible networks 12.What method is used in Win95 in multitasking Ans. Non preemptive check 13.What is meant by functional dependency (14)(S)What is a semaphore Ans. A method synchronization of multiple processes Sheet1 Page 2 (15)(S)What is the precedence order from high to low ,of the symbols ( ) ++ / Ans.( ) , ++, / 16.Preorder of A*(B+C)/D-G Ans.*+ABC/-DG (20)(S)What is the efficiency of merge sort Ans. O(n log n) 22.In which layer are routers used Ans.In network layer 23.In which layer are packets formed ( in network layer ) 26.Which of the following sorting algorithem has average sorting behavior -- Bubble sort,merge sort,heap sort,exchange sort Ans. Heap sort (27)(S) In binary search tree which traversal is used for getting ascending order values--Inorder ,post order,preorder Ans.Inorder 28.What are device drivers used for Ans.To provide software for enabling the hardware 30.What is fork command in unix Ans. System call used to create process 31.What is make command in unix Ans. Used forcreation of more than one file 32.In unix .profile contains Ans. Start up program 33.In unix echo is used for ( answer C) 34.In unix 'ls 'stores contents in Ans.inode block ANALYTICAL ABILITY------------------ 1. The office staff of XYZ corporation presently consists of three bookeepers--A, B, C and 5 secretaries D, E, F, G, H. The ma Sheet1...
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This note was uploaded on 06/27/2010 for the course MACS MCA taught by Professor Brs during the Spring '10 term at National Institute of Technology, Calicut.
- Spring '10