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Wipro Selection Procedure
1.Writtent Test 50 Questions in
2.Technical and HR
1 Quantitative /analytical reasoning (20 questions)
2 Verbal ability (20 questions)
3 Technical section (10questions)
Wipro Technical Interview Questions
a)Technical Questions
1)Casse grain feed is used with a parabolic reflector to
a.) increase the gain of the system
b). increase the bandwidth of the system
c.) reduce the size of the main reflector
d.) allow the feed to be placed at a convenient point.
2) .In most microwave communication link rain drop attenuation is caused due to-
a.) scattering of microwaves by water drops of specific size.
b) scattering of microwaves by a collection of droplets acing as a single body.
c.) absorption of microwaves by water and consequent heating of the liquid
d.) absorption of the microwaves by water vapor in the atmosphere.
3) When a (75 – j40)W load is connected to a coaxial line of Z0 = 75 W at 6MHz then the load matching on the line can be accomplished by connecting-
a.) A short – circuited stub at the load
b.)An inductance at the load
c. )A short circuited stub at a specific distance from the load
d.)none of the above
4) As compared to analog multimeters, digital Multimeters's are –
a.) less accurate
b.) more accurate
c.) equally accurate
d.) none.
5) When a signal of 10 mV at 75 MHz is to be measured then which of the following instruments can be used –
a.) VTVM
b.) Cathode ray oscilloscope
c.) Moving iron voltmeter
d.) Digital multimeter
6) Amplifier of class B has high theoretical efficiency of 78.5 percent because-
a.) It is biased almost to saturation
b.)Its quiescent current is low
c.)It’s output is an exact replica of it’s input
d.)It is biased well below cut off
7) The coupling that produces minimum interference with frequency response is-
a.) Direct coupling
b.)Impedance coupling
c.) R C coupling
d.)Transformer coupling
8) A superconductor is a –
a.) A material showing perfect conductivity and Meissner effect below a critical temperature
b.) A conductor having zero resistance
c.) A perfect conductor with highest di-magnetic susceptibility
d.) A perfect conductor which becomes resistance when the current density through it exceeds a critical value
9) When an inductor tunes at 200 KHz with 624 pF capacitor and at 600 KHz with 60.4 pF capacitor then the self capacitance of the inductor would be –
a) 8.05 pF
b) 10.05pF
c.) 16.01pF
d.) 20.01pF
10) .The Q of a radio coil –
a.) is independent of frequency
b.) increases monotonically as frequency increases
c.) decreases monotonically as frequency increases
d.) increases upto a certain frequency and then decreases beyond that frequency
11) When a generator of internal impedance and operating at 1GHz feeds a load via a coaxial line of characteristic impedance 50 ohm then the voltage wave ratio on the feed line is –
a.) 0.5
b.) 1.5
c.) 2.5
d.) 1.75
Predict the output or error(s) for the following:
12). main()
{
static int var = 5;
printf("%d ",var--);
if(var)
main();
}
Ans: 5 4 3 2 1
13). main()
{
int c[ ]={2.8,3.4,4,6.7,5};
int j,*p=c,*q=c;
for(j=0;j<5;j++) {
printf(" %d ",*c);
++q; }
for(j=0;j<5;j++){
printf(" %d ",*p);
++p; }
}
Ans : 2 2 2 2 2 2 3 4 6
14. If the time quantum is too large, Round Robin scheduling degenerates to
(a) Shortest Job First Scheduling
(b) Multilevel Queue Scheduling
(c) FCFS
(d) None of the above Ans. (c)
15. Transponders are used for which of the following purposes
(a) Uplinking
(b) Downlinking
(c) Both (a) and (b)
(d) None of the above Ans. (c)
16. The format specifier "-%d" is used for which purpose in C
a) Left justifying a string
(b) Right justifying a string
(c) Removing a string from the console
(d) Used for the scope specification of a char[] variable Ans. (a)
17. A sorting algorithm which can prove to be a best time algorithm in one case and a worst time algorithm in worst case is
(a) Quick Sort
(b) Heap Sort
(c) Merge Sort
(d) Insert Sort Ans. (a)
18. If the time quantum is too large, Round Robin scheduling degenerates to
a) Shortest Job First Scheduling
(b) Multilevel Queue Scheduling
(c) FCFS
(d) None of the above Ans. (c)
19). Transponders are used for which of the following purposes
(a) Uplinking
(b) Downlinking
(c) Both (a) and (b)
(d) None of the above Ans. (c)
20). The format specifier "-%d" is used for which purpose in C
(a) Left justifying a string
(b) Right justifying a string
(c) Removing a string from the console
(d) Used for the scope specification of a char[] variable Ans. (a)
21). A sorting algorithm which can prove to be a best time algorithm in one case and a worst time algorithm in worst case is
(a) Quick Sort
(b) Heap Sort
(c) Merge Sort
(d) Insert SortAns. (a)
22). What is the main function of a data link content monitor?
(a) To detect problems in protocols
(b) To determine the type of transmission used in a data link
(c) To determine the type of switching used in a data link
(d) To determine the flow of data Ans. (a)
23). Which of the following is a broadband communications channel?
(a) Coaxial cable
(b) Fiber optic cable
(c) Microwave circuits
(d) All of the above Ans. (d)
24). Which of the following memories has the shortest access time?
(a) Cache memory
(b) Magnetic bubble memory
(c) Magnetic core memory
(d) RAM Ans. (a)
25). A shift register can be used for
(a) Parallel to serial conversion
(b) Serial to parallel conversion
(c) Digital delay line
(d) All the above Ans. (d)
26). In which of the following page replacement policies, Balady's anomaly occurs?
(a) FIFO
(b) LRU
(c) LFU
(d) NRU Ans. (a)
27). What can.t be changed by the user program (Four choices were there). Ans. Memory Map
28). In which layer ROUTING is performed ? Ans. Network Layer
29). What is the output of the following code snippet
main()
{
printf(5+.Fascimile.);
}
Ans. mile
30)What is the output
Int count=10,sum=0,*temp;
Temp=&count;
Sum=? &count;( It was actually given temp=? &count; which is probably wrong)
Printf(.sum=%d count= %d temp=%d .,sum,count,*temp);
Ans. C (most expected answer ,check it)
31).Which one has no L-Value
[i] a[i]
[ii] i
[iii] 2
[iv] *(a+i)
Ans . [iii]
32). In threaded binary for which traversal orders unused left and right links are used?
33)Which is false for binary tree?
[i] Any node should have two children.
[ii] At fourth level the number of node should be less than 16.
34). Which is true for binary search ?
[i] Traversal scheme
[iii]Greedy algorithm
[iv] Divide and conquer algorithm
Ans. [iv]
35)What is the protocol used for getting the physical address by supplying IP address of a node
[i] ARP
[ii] RARP
[iii] BOOTP
[iv] DHCP
Ans. [i]
Wipro Aptitude Questions
Aptitude Questions
1) Simple question but big one on average age.sth like a, b, c weighted separately 1st a, b, c ,then a& b, then b &c ,then c & a at last abc, the last weight was 167,then what will be the average weight of the 7 reading?
a)95 b)95.428 c)95.45 d)94
2) A toy train produces 10 different sounds when it moves around a circular toy track of radius 5 m at 10 m per min. However, the toy train is defective and it now produces only 2 different tunes at random. What are the odds that the train produces for consecutive music tones of the same type?
a) 1 in 16 b)1 in 4 c)1 in 8 d)1 in 32
3) A triangle is made from a rope. The sides of the triangle are 25 cm, 11 cm and 31 cm. What will be the area of the square made from the same rope?
a)280.5625 b)240.5625 c)280.125 d)240
4) What is the distance between the z-intercept from the x-intercept in the equation ax+by+cz+d=0
5) What is the distance of the z-intercept from the x-intercept in the equation ax+by+cz=d (I do not remember the values of a, b, c, d).
6) A scientist was researching on animal behavior in his lab. He was very interested in analyzing the behavior of bear. For some reason he travelled 1mile in north direction & reached at North Pole. There he saw a bear. He then followed the bear around 1 hr with a speed of 2km/hr in east direction. After that he travelled in south direction & reached at his lab in2 hrs. Then what is the color of the bear?
a)white b)black c)gray d)brown
7) Out of 7 children the youngest is boy then find the probability that all the remaining children are boys
a)1/64 b)1/32 c)1/128 d)1/256
8) Usha bought a linen cloth and rope to build a tent. If the rope is 153 m long and it is to be cut into pieces of 1m length, then how many cuts are to be made to cut the ropes into 153 pieces?
a)153 b)152 c)154 d)155
9) Spores of a fungus, called late blight, grow and spread infection rapidly. These pathogens were responsible for the Irish potato famine of the mid-19th century. These seem to have attacked the tomato crops in England this year. The tomato crops have reduced and the price of the crop has risen up. The price has already gone up to $45 a box from $27 a box a month ago. How much more would a vegetable vendor need to pay to buy 27 boxes this month over what he would have paid last month?
a) $27 b)$ 18 c)$45 d)$ 486
10) A Person buys a horse for 15 ponds, after one year he sells it for 20 pounds. After one year, again he buys the same horse at 30 pounds and sells it for 40 pounds. What is the profit for that person?
11) John buys a cycle for 31 dollars and given a cheque of amount 35 dollars. Shop Keeper exchanged the cheque with his neighbor and gave change to John. After 2 days, it is known that cheque is bounced. Shop keeper paid the amount to his neighbor. The cost price of cycle is 19 dollars. What is the profit/loss for shop keeper?
a)loss 23 b)gain 23 c)gain 54 d)Loss 54
12.Two series are 16,21,26.... and 17,21,25.....What is the sum of first hundred common numbers
(a) 101100
(b) 110100
(c) 101110
(d) 110101
Ans. (a)
13). a and b are two numbers selected randomly from 1,2,3.... 25 what is the probability of a and b are not equal.
(a) 1/25
(b) 24/25
(c) 13/25
(d) 2/25 Ans. (b)
14). The sum of the series 1 + 1(1+1/n) + 3(1+1/n)2 + ..... is equal to? Ans. n2
15). How long will a train 100m long travelling at 72kmph take to overtake another train 200m long travelling at 54kmph
(a) 70sec
(b) 1min
(c) 1 min 15 sec
(d) 55 sec Ans. (b)
16). A person travels 12 km in the southward direction and then travels 5km to the right and then travels 15km toward the right and finally travels 5km towards the east, how far is he from his starting place?
(a) 5.5 kms
(b) 3 km
(c) 13 km
(d) 6.4 km Ans. (b)
17). X's father's wife's father's granddaughter uncle will be related to X as
(a) Son
(b) Nephew
(c) Uncle
(d) Grandfather Ans. (c)
18). Find the next number in the series 1, 3 ,7 ,13 ,21 ,31
a) 43
(b) 33
(c) 41
(d) 45 Ans. (a)
19). If in a certain code "RANGE" is coded as 12345 and "RANDOM" is coded as 123678. Then the code for the word"MANGO" would be
(a) 82357
(b) 89343
(c) 84629
(d) 82347 Ans. (d)
20). If A speaks the truth 80% of the times, B speaks the truth 60% of the times. What is the probability that they tell the truth at the same time
(a) 0.8
(b) 0.48
(c) 0.6
(d) 0.14 Ans.(b)
21). Susan can type 10 pages in 5 minutes. Mary can type 5 pages in 10 minutes. Working together, how many pages can they type in 30 minutes?
A. 15
B. 20
C. 25
D. 65
E. 75 Ans: E
22). Six bells commence tolling together and toll at intervals 2,4,6,8,10 and 12 seconds respectively. In 30 minutes how many times they toll together.
a) 4
b) 10
c) 15 d) 16 Ans: d)
23). For each hour an watch is going slow by 30 seconds. Now time is 8a.m.What will be the actual time at 8p.m. Ans: 7:54.
24). If a person walks at 4/5th of his usual spee he reaches 40min late. If he walks at his usual speed how much time does he travels. Ans:160min or 2hr 40min
25). If DELHI is coded as CCIDD then how BOMBAY will be coded?
26)Opposite meaning of SPUR.
27)Opposite of HARBINGER .Ans. Follower
28)Opposite meaning of PROTRUSION.
29). Opposite meaning of RESTIVENESS. Ans.Docility.
30).Find the odd one in a given analogy Ans. Mundane.
31) . Find the analogy : SURPRISE : EXCLAMATION Ans. Dismay:groan.
32) Find the analogy : Plateau : Taxonomy.
33)Question from congestion control topic: Ans: source quench.
34) Question from kernel mode: Ans:Disable Interrupts.
35) which one is a page replacement algorithim.
[i]fifo
[ii]
[iii]Least recently used.
[iv]All of above.
36)Using two numbers And interchanging + and * there was a question.
Ans:(iii)(some expression=22).
37)For each hour an watch is going slow by 30 seconds.Now time is 8a.m.What will be the actual time at 8p.m. Ans:ii)7:54.
38)Question regarding while loopAns:(iii).
29)A question regarding node.
Ans:iii)
30)Point out error in the follwing sentence:I got the book in the office and slipped it out.
[i]I got the book.
[ii] in the.
[iii]office and .
[iv] slipped it out.
Ans:[iv].
Wipro HR and Technical Interview Questions
c) HR And Technical Interview went on simultaneously.
HR Interview::
1) Describe Yourself.
2) Your Hobbies..
3) Your Project
4) What do you expect from Wipro.
Be confident ....and talk informally
.
Technical Interview::
It went for 1 hour...just me....very lengthy.
1) Asked me about my project.
2) Asked me about my Engg subjects..OS Data Structures ...C C++ Unix .
3) What are the OS Components ?
4) Draw the various modules of the OS.
5) What is a Thread.
6) What are the advantages of threads.
7) What are the different types of scheduling?
8) Process Synchronization.
9) Semaphores Monitors.
10) Write the code for semaphore.
11) Benady's Anomaly.
12) Memory Management
13) Polymorphism in C++
14) Output of a C Program (Test ur C Skills type)
15) Use of static.
16) Ostrich Algorithm..( Didn't know)
17) What are NP Hard Problems.
18) Join two linked lists.
19) Various Sorting algorithms.
20) Trees Binary search tree etc
