In sb k correct answers share kren
1-Sub-tractor is not commonly used in computers because:
A-it is expensive
B-it cannot be designed
C-it needs an adder for subtraction
D- None of them
2-if x>0 and xy=1 then x+y cannot be less than?
3-in flight reservation system relation what should be the primary key? Flight_number,date,destination,source etc.
a-Flight_number,date
b-Flight_number
4-shell script is?
A-Compiled
B-interpreted
5-what will be called a variable if size of data in it can be changed ?
A-Dynamic variable
B-No such variable exist
6-how many level of acceptance in the TM definition?
7-which one is not a crime?
A-Time bomb
B-Data mining
8-binding of variable/identifier occur at?
A-writing time
B-execution Time
C-compilation time
9-for(x=0; x<11;x++) what will be the value of x when run this program in c++?
a-10
b-11
10-which one is not a data design tool?
11-which one is not a data design model?
A-E-R model
12-which one is most adequate normalization form(for relations)?
13-(an arithmetic expression was given what was the ans of that )? expression k end mn %3 tha
A- 2
14-which is the most network topology
A-star
B-bus
C-ring
D-mesh
15-what an operating system cannot do?
A-accounting
B-multitasking
16-which one is two way data structure?17-fisrt microprocessor was used in?
A-DOS
B-windows
18- How many number of binary tree can be formed with three nodes?
19- How many number of ordered tree can be formed with three nodes A,B,C?
20-WHICH STATEMENT is incorrect?
A-PC points to the last instruction that was executed
B-all instructions affects the flag
21-accumulator can be push into stack as
A-PUSH A
22-computers normally behave on false input because of?
a-fault tolerance
23-how many maximum numbers of vertex can be when n number of vertices?
a- 2n
b- n+1
c- n-1