81. func()
{
int x=1;
if(x=1)
x=1000;
else
x=10;
return x;
}
What is the return value?
Answer: 1000
Explanation:Here is no explanation for this answer
Workspace
Cisco
82. #include
int main()
{
int i=20,j,k=0;
for(j=1;j >i;j++)
{
k+=j<10?4:3;
}
printf("%d", k);
}
Answer: 0
Explanation:Here is no explanation for this answer
Workspace
Cisco
83. Find the output for the following C program
#include
int i = 10;
int main()
{
int i =20,n;
for(n=0;n<=i;)
{
int i=10;
i++;
}
printf("%d k", i);
}
Answer: Stack overflow
Explanation:Here is no explanation for this answer
Workspace
Cisco Societe Generale
84. Type duplicates of a row in a table customer with non uniform key field customer number you can see
Answer: Delete from costomer where customer number exists( select distinct customer number from customer having count )
Explanation:Here is no explanation for this answer
Workspace
Cisco
85. There is an employer table with key fields as employer number data in every n'th row are needed for a simple following queries will get required results.
Answer: select employee number from employe A, employe B where A employe number=B employ number group by employee number having(count(*) mod n=0 )
Explanation:Here is no explanation for this answer
Workspace
Cisco Sopra Steria
86. The UNIX shell
Answer: forms the interface between the user and the kernal
Explanation:Here is no explanation for this answer
Workspace
Cisco
87. The redirection operators > and >>
Answer: differ : > overwrites, while >> appends
Explanation:Here is no explanation for this answer
Workspace
Cisco
88. Four concentric circles are given .The radius of 1st circle is x.next is 2x,then 3x and 4x. Given that area between 2nd and 1st is A and 4th and 3rd circles being B. Find ratio of A to B
Answer: 3:7
Explanation:Area of first circle = pi*(x)^2 = pi*x^2
Area of second circle = pi*(2x)^2 = 4*pi*x^2
Area of third circle = pi*(3x)^2 = 9*pi*x^2
Area of fourth circle = pi*(4x)^2 = 16*pi*x^2
Area b/w 1st and 2nd circles = 3*pi*x^2
Area b/w 3rd and 4th circles = 7*pi*x^2
So, Ratio = 3:7
Workspace
Cisco
89. A triangle ABC is given, a line DE is parallel to base side and that cuts the triangle. The ratio of area of triangle to the area of trapezium.
Given DE/BC = 3/5.
Answer: 9/16
Explanation:The line DE divides the triangle ABC into 2 parts - triangle ADE and trapezium DBCE.The question is to find the ratio of area(ADE) to area(DBCE).
Now triangle ADE is similar to triangle ABC.
=> DE/BC = AD/AB = AE/AC ....(1)
Drawing a perpendicular from A to BC meeting BC at G and meeting DE at F.
Now AF and AG are the heights of the triangles ADE and ABC resp.
tri(ADF)~tri(ABG) => AD/AB = AF/AG ....(2)
Area of a triangle = 1/2(base*height).
Area of tri(ADE) = 1/2(DE*AF)
Area of tri(ABC) = 1/2(BC*AG)
Area of trapezium(DBCE) = area(ABC)-area(ADE) = 1/2(BC*AG-DE*AF)
Ratio - area(ADE)/area(DBCE) = (DE*AF)/(BC*AG-DE*AF) = 1/[(BC*AG-DE*AF)/(DE*AF)]
(rearranging) = 1/[(BC/DE)*(AG/AF)-1]
Using (1) and (2),(BC/DE)*(AG/AF) = (BC/DE)^2
(using given DE/BC=3/5) => BC/DE=5/3 => (BC/DE)^2 = 25/9
The required ratio = 1/(25/9-1) =1/(16/9) = 9/16
Workspace
Cisco
90. A company contracts to paint 3 houses. Mr.Brown can paint a house in 6 days while Mr.Black would take 8 days and Mr.Blue 12 days. After 8 days Mr.Brown goes on vacation and Mr. Black begins to work for a period of 6 days. How many days will it take Mr.Blue to complete the contract?
Answer: 11
Explanation:Here is no explanation for this answer
Workspace
Cisco
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