1. Which of the following strings is in the language defined by grammar
S → OA, A → 1A/0A/1
(A) 01100 (B) 00101 (C) 10011 (D) 11111
Hints:
2. For a complete graph with N vertices, the total number of spanning trees is given by : (A) 2N-1 (B) NN-1 (C) NN-2 (D) 2N+1
3. The preposition (p → q) ∧ (~ q ∨ p) is equivalent to :
(A) q → p (B) p → q (C) (q → p) ∨ (p → q) (D) (p → q) ∨ (q → p)
4. The logic of pumping lemma is a good example of :
| (A) | pigeon hole principle | (B) | recursion |
| (C) | divide and conquer technique | (D) | iteration |
from A to B is :
| (A) | injective | (B) surjective |
| (C) | both injective and surjective | (D) neither injective nor surjective |
6. The number of 1’s present in the binary representation of
is : (A) 8 (B) 9 (C) 10 (D) 11 Hints:
7. Which of the following expression removes static hazard from a two level AND - OR gate implementation of x y + z x’
| (A) | x y + zx’ | (B) | x y + zx’+ wyz | ||
| (C) | x y + z x’+ yz | (D) | x y+ zx’+ wz |
8. Which of the following logic has the maximum fan out ?
(A) RTL (B) ECL (C) NMOS (D) CMOS
9. In a weighted code with weight 6, 4, 2, 23 the decimal 5 is represented by :
| (A) 0101 | (B) 0111 | (C) 1011 | (D) 1000 |
10. Upto how many variables, can the Karnaugh map be used ?
(A) 3 (B) 4 (C) 5 (D) 6
11. What is the output of the following program segment ?
main ( )
{
int count;
int digit=0;
count=1;
while(digit<=9)
{printf (“%d/n”, ++count);
++digit;
}
}
(A) 10 (B) 9 (C) 12 (D) 11
12. A static variable is one :
(A) Which cannot be initialized
(B) Which is initialized once at the commencement of execution and cannot be changed at runtime
(C) Which retains its value throughout the life of the program
(D) Which is the same as an automatic variable but is placed at the head of a program
13. If the following loop is implemented
Main()
{
int num=0;
do { - - num;
printf("%d",num);
num++;} while (num >=0);
}
(A) the loop will run infinitely many times
(B) the program will not enter the loop
(C) there will be compilation error reported
(D) a run time error will be reported
14. # define max (x, y) x=(x > y) ? x : y is a macro definition, which can find the maximum of two numbers x and y if :
(A) x and y are both integers only
(B) x and y are both declared as float only
(C) x and y are both declared as double only
(D) x and y are both integers, float or double
15. The function sprintf ( ) works like printf ( ), but operates on :
(A) Data in a file (B) stdrr (C) stdin (D) string
Which of the following is candidate key ?
(A) A (B) AC (C) AD (D) None of these
17. Immediate updates as a recovery protocol is preferable, when :
(A) Database reads more than writes
(B) Writes are more than reads
(C) It does not matter as it is good in both the situations
(D) There are only writes
18. Which of the following statement is wrong ?
(A) 2 - phase locking protocol suffers from dead locks
(B) Time - Stamp protocol suffers from more abort
(C) Time stamp protocol suffers from cascading rollbacks where as 2 - phase locking protocol do not
(D) None of these
19. Which data management language component enabled the DBA to define the schema components ?
| (A) | DML | (B) | Subschema DLL |
| (C) | Schema DLL | (D) | All of these |
20. A subclass having more than one super class is called __________ .
| (A) | Category | (B) | Classification |
| (C) | Combination | (D) | Partial participation |
21. In the balanced binary tree given below, how many nodes will become unbalanced when a node is inserted as a child of the node “g”.
(A) 1 (B) 3 (C) 7 (D) 8
22. Preorder is also known as :
| (A) | Depth first order | (B) | Breadth first order |
| (C) | Topological order | (D) | Linear order |
23. Which of the following statement is false ?
(A) Every tree is a bipartite graph
(B) A tree contains a cycle
(C) A tree with n nodes contains (n-1) edges
(D) A tree is connected graph
24. If the post fix form of a string is ABC+-D*, The actual string is :
| (A) (A-(B+C))*D | (B) ((A-B)+C)*D |
| (C) ((A+B)-C)*D | (D) (A+(B-C)*D) |
25. Application of data structure queue is :
| (A) | Levelwise printing of tree | (B) Implementation of priority queues |
| (C) | Function call implementation | (D) Depth first search in a graph |
26. What is the transmission signal coding method for a T1 carrier called ?
(A) Binary (B) NRZ (C) Bipolar (D) Manchester
27. How much bandwidth is required to send 132 voice - grade channels by FDM on an international satellite system ?
(A) 500 MHz (B) 10 MHz (C) 1320 MHz (D) 50 MHz
28. What is the difference between the Ethernet frame preamble field and the IEEE 802.3 preamble and start of frame Delimiter fields ?
(A) 1 byte (B) 1 bit (C) 4 bits (D) 16 bits
29. What is the function of a translating bridge ?
(A) Connect similar remote LANs
(B) Connect similar local LANs
(C) Connect different types of LANs
(D) Translate the network addresses into a layer 2 address
30. The program used to determine the round - trip delay between a workstation and a destination address is :
(A) Tracert B) Traceroute (C) Ping (D) Pop
31. Which statement is wrong ?
(A) If linked origin ≠ translated origin, relocation must be performed by the linker
(B) If load ≠ linked origin, the loader must perform relocation
(C) A linker always perform relocation, whereas some loaders do not
(D) None of thses
32. Tasks done in parsing are :
(A) Check the validity of a source string
(B) Determine the syntactic structure of a source string
(C) Both (A) and (B)
(D) None of these
33. YACC builds up __________ parsing table.
(A) LALR (B) LR (C) SLR (D) LLR
34. The action of passing the source program into the proper syntactic class is known as :
| (A) | Syntax analysis | (B) | Lexical analysis |
| (C) | Interpretation analysis | (D) | Uniform symbol generation |
35. The dynamic binding occurs during the :
| (A) | Compile time | (B) | Run time |
| (C) | Linking time | (D) | Pre - processing time |
36. The first operating system of Microprocessor is __________ .
(A) ATLAS (B) CP/M (C) SAGE (D) T.H.E.
37. In processor management, round robin method essentially uses the preemptive version of __________ .
(A) FILO (B) FIFO (C) SJF (D) Longest time first
38. A page fault __________ .
(A) is an error in specific page
(B) is an access to the page not currently in main memory
(C) occurs when a page program accesses a page of memory
(D) is reference to the page which belongs to another program
39. __________ synchronize critical resources to prevent deadlock.
(A) P - operator (B) V - operator (C) Semaphores (D) Hard disk
40. The memory allocation scheme subjected to “external” fragmentation is :
| (A) | Segmentation | (B) | Swapping |
| (C) | Demand paging | (D) | Multiple contiguous fixed partitions |
41. In software project planning, work Breakdown structure must be __________ .
| (A) | A graph | (B) A tree |
| (C) | A Eular’s graph | (D) None of the above |
42. In Software Metrics, McCABE’S cyclomatic number is given by following formula :
| (A) c=e-n+2p | (B) | C=e-n-2p |
| (C) c=e+n+2p | (D) | C=e-n* 2p |
43. In a good software design, __________ coupling is desirable between modules. (A) Highest (B) Lowest (C) Internal (D) External
44. System study yields the following :
| (A) | Requirement specifications | (B) | Prevailing process description |
| (C) | Data source identification | (D) | All the above |
45. The COCOMO model is used for __________ .
| (A) | software design | (B) | software cost estimation |
| (C) | software cost approximation | (D) | software analysis |
46. MMS (Multimedia Messaging Service) uses __________ types of messages to perform messaging transactions.
(A) 4 (B) 6 (C) 8 (D) 10
47. Bluetooth technology uses the transmission media.
| (A) | Radio links | (B) | Microwave links |
| (C) | VSAT communication | (D) | Optical fiber links |
48. Downflow is the process associated with __________ and back up of data in a warehouse.
(A) packaging (B) archiving (C) extraction (D) loading
49. Predictive modeling in data mining uses __________ technique.
| (A) | Statistical | (B) | Association Discovery |
| (C) | Value prediction | (D) | None of these |
50. The use of a smart card represents a form of :
| (A) | password encryption | (B) | user - ID encryption |
| (C) | authorization | (D) | authentication |
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