**Huawei Placement Paper – II with Answers, Solutions:-**

**1. **standard error stream stderr,

**Ans**: are by default buffered

**2**. Named pipes are ansd:strictly unidirectional, even on systems where anonymous pipes are bidirectional ( full-duplex).

**3.** proto type of printf

**Ans**: int fprintf(FILE *stream, const char *format, …)

**4**.user level switcjing is faster than the kernel level s/w

**Ans:**since a trap to kernel is not required(user level thread is not known by the os)

** 5**.automatic variables are stored in

** 6**.dynamic memory is it allocated from heap/satck…?

** 7.**how to find the size of file in unix

**8**. How many times is the for loop executed

for(i=0;i<10;i++);

a. 1

b. 10

c. compiler error

d. not executed

**9**. How many times is the for loop executed

for(i=0;i<10;i++);

a. 1

b. 10

c. compiler error

d. not executed

**10**. for selection, we use

a .if..else

b .for loop

c. while loop

d…..

**11**.Which of the following is executed 1rst?

i .&& ii.|| iii.!

a. i

b. ii

c. iii

d. all are equal

**12**.To find o/p of a recursive pgm, function where in parameters are passed by value,reference……function used in ansi computers to clear the screen is:

a. clrsc

b. clear

c. clescr

d. none of the above

**13.** Some students are standing in a circle in which 6th and the 16th student are standing opposite to each other. find how many students were present there.

**14**. Two cube intersect then which of the following is never made:

a)rectangle

b)triangle

c)cube

d)none of these

**15**. Average of 9 numbers is M, avg of 3 nos is N, avg of rest of the no is P, then what is the equation formed.

**16. **A ladder was rested along a wall of height 5m. If ladder slides 2m away from the wall then ladder touches the foot of the wall .What is the height of the ladder.

**17** A boy gets some rupees from his mother and spends them on 5 stores. He spends one rupee more than half of the money. How much money he had at the time of entering the shop.

**18**. 311311311311311311 is divisible by:

a)3 and 11.

b)11 but not 3.

c)3 but not 11.

d)none of the above.

**19**. If a rainy day occurs on every 10th day and each rainy day accounts for half rainbow then in 20 days what is the percentage of days when rainbow doesn’t takes place.

**20**. A man works continuously for 8 days and then takes rest on the 9th day. If he starts on Monday then on which day he will take 12th rest.

**21**. Its 27 min past 10. How many minutes would it take to cover 12 noon.

**22**. In a transistor in active region there is a relation:

a) IB = BIC

b) IC = BIB

c) IC = IB

d) none of these.

**23**. .For preservation of food we need

a) salt

b) formaldehyde

c) sugar

d) none of these

**24.** what is dry ice.

**25**. Ammeter 25-0-25mA then what is the sensitivity of ammeter.

5) Which layer is not in OSI layer:

a)physical

b)data link

c)network

d)transmission

**26**. If carrier is modulated 100 % then what is the percentage increment of power:

a)50

b)100

c)0

d)none

**27**. Convert (17)10 to binary.

**28.** (375)10 = ()8

**29.** During a day at which time most distortion takes place.

**30.** The distance b/w 2 places is 1000 miles and a man has a camel which eats an apple/mile. He has 3000 apples and want to transport from one to another. Camel can take 1000 apples at a time. when reaching the destination how many apples will be with him?

**31 **How many 3-digit numbers will be there which are divisible by 19?

**32**. How many 3-digit numbers with at least one 5 in their digits?

**33 **find the next term 0, 6, 24, 120, –

**Ans:** 210; each term is obtained by adding multiples of 6 with series 1,3,6,10,15

**34**. There is 12 perls. One of them is either light or heavy than others. There is a weighing pan. How many trials are needed to find the exceptional one.

**35**There is a work which can be completed by A with 12 days and B by 18 days. A and B works together for 3 days and B left. After that how many days for A to complete the work?

** Ans:**7 days

**36 **1992 Feb have 5 Sundays. In which year, the month Feb have 5 Sundays next?

**37. **There are 2 pots each filled with water and milk respectively. Some amount of milk is poured into water pot and then the some amount of mixture in water pot is poured into milk pot. which is true?

a. the amount of milk in water pot is greater than the amount of water in milk pot.

b. the amount of milk in water pot is less than the amount of water in milk pot.

c. the amount of water in milk pot is same as that of amount of milk in water pot.

d. cannot be determined.

**Ans:**C

**38** In a party there are women and cats. There are 18 heads and 72 legs altogether. How many women and cats?

**39**. The sum of 25 consecutive integers (including negative, positive and zero) is divisible by

a. 5

b. 10

c. 25

d.

**40 **The headquarters of Huawei is at

a. Honkong

b. Shenzan

c. Shanghai

d.

**41 **In olden times man used to avoid attacks of Dinosour

a. using fire

b. Climbing the tree

c. Using weapons

d. None of the above

**42.** There is a population of N numbers and each person in the population shake hands with every other person. Which is true?

a. If N is even, even no of shake hands

b. if N is even, odd no of shake hands

c. if N is odd, even no of shake hands

d. if N is odd, odd no of shake hands

**43 **which is true?

out of 4 options ans is “& operator cannot be applied to register

variables”

**44**. How many additions are done in this pgm

for(i=0;i<31;i++)

for(j=0;j<31;j++)

for(k=0;k<31;k++)

d=d+1;

**45.** i=6720,j=4;

for(;i%j==0;){

i=i/j;

;

j=j+1;

}

print i;

what is the output?

**46**. what is a bit=field?

18. Storage class defines

a.scope

b.scope and permeance

c.permeance

d.

**47.** main(){

int x=0;

fun(x);

print x;

}

fun(int x){

x=x+1;

print x;

}

what is the output?

**48** Changing some of the bits to a desired pattern is known as

a.masking

b.Pruning

c.

d.

**50 **main{

int i=1;

{

int i=2;

print i;

i=i+1;

}

print i;

}

what is the output.