Aptitute Questions

1.If 2x-y=4 then 6x-3y=?
(a)15
(b)12
(c)18
(d)10

Ans. (b)
2.If x=y=2z and xyz=256 then what is the value of x?

(a)12
(b)8
(c)16
(d)6

Ans. (b)
3. (1/10)¹⁸ - (1/10)²⁰ = ?
(a) 99/10²⁰
(b) 99/10
(c) 0.9
(d) none of these
Ans. (a)
4.Pipe A can fill in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 40 mins.If all of them work together, find the time taken to fill the tank
(a) 17 1/7 mins
(b) 20 mins
(c) 8 mins
(d) none of these
Ans. (a)
5. Thirty men take 20 days to complete a job working 9 hours a day.How many hour a day should 40 men work to complete the job?
(a) 8 hrs
(b) 7 1/2 hrs
(c) 7 hrs
(d) 9 hrs
Ans. (b)


6. Find the smallest number in a GP whose sum is 38 and product 1728
(a) 12
(b) 20
(c) 8
(d) none of these
Ans. (c)
7. A boat travels 20 kms upstream in 6 hrs and 18 kms downstream in 4 hrs.Find the speed of the boat in still water and the speed of the water current?
(a) 1/2 kmph
(b) 7/12 kmph
(c) 5 kmph
(d) none of these
Ans. (b)
8. A goat is tied to one corner of a square plot of side 12m by a rope 7m long.Find the area it can graze?
(a) 38.5 sq.m
(b) 155 sq.m
(c) 144 sq.m
(d) 19.25 sq.m
Ans. (a)
9. Mr. Shah decided to walk down the escalator of a tube station. He found   that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured from the moment the top step begins   to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?
Ans.46 steps.
10. The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?
Ans.40 years.

Cloud Computing - 10 predictions

Here are the 10 cloud predictions for the coming years.

1. Large organizations will host important applications with cloud providers like AWS and Rackspace. Also, commodity IaaS providers will build up their services for these enterprises.
2. There will be an increase in solid-state drives among commodity and enterprise IaaS providers. New classes of applications and services will be made possible to run optimally in the cloud.
3. In the private cloud space, there will be contraction. The presence of large-vendors and OpenStack-based products will make way for less-successful startups to gather acquisitions. Specialized private cloud startups won’t have a hard time finding buyers as they will begin rounding out their private cloud portfolios with acquisitions that deliver specific capabilities.
4. As large vendors realize the need to stake their claims, PaaS acquisitions and launches will be a profitable market. HP, Dell and even Oracle will facilitate PaaS in their public and/or private offerings.
5. The convergence of big data will continue. It will result to advanced analytics features, publicly hosted data-crunching services like the Amazon Elastic MapReduce, and optimization of private cloud software as it incorporate Hadoop clusters or other parallel-processing systems into the cloud infrastructure.
6. Bigger revenue will be generated for startups that address data-center-to-cloud latency. With the rapid improvement of intra-cloud computing, storage and networking performance, one hindrance would be moving some applications types to the public cloud because of the large quantities of existing data.
7. AWS will be launching a partner program to increase integration with private cloud software. There will also be an open source play for the growing OpenStack support.
8. After the data breach that involves an IaaS cloud or cloud storage service, we will get to see the emergence of a de facto or an official cloud security standard. Cloud providers will be driven to agree on a security protocol that is much better that what they currently have.
9. There will be an increase in PaaS offerings for specialized mobile platforms because Apple’s iCloud and other consumer-focused cloud services’ popularity.  The current PaaS offering are not well-suited for mobile applications. Developers will look into cloud-based gaming and other mobile applications.
10. Data virtualization will pick up its momentum as data integration gives way. Data virtualization offers the benefits of centralized access without the need to maintain extract-transform load (ETL) system or as large a data warehouse, critical differences as data sources multiply to include SaaS applications, cloud servers and mobile devices.

To Know more about Cloud Computing Future

Verbal Related - p2

72. mason : wall :: Author : Book 

73. Fire : Ashes :: Event : memories
 74. (a) cheerleaders : pompoms
(b) audience:seats
(c) team:goalposts
(d) conductor:podium
(e) referee:decision

Ans. (a)

75.  archipelago:islands::

(a) arbor:bower
(b) garden:flower
(c) mountain:valley
(d) sand:dune
(e) constellation:star

Ans. (a)


76. crow:boastful ::

(a) smirk:witty
(b) conceal:s;y
(c) pout:sulky
(d) blush:coarse
(e) bluster:unhappy

Ans. (a)


77. bracket:shelf ::

(a) hammer:anvil
(b) girder:rivet
(c) strut:rafter
(d) valve:pipe
(e) bucket:well

Ans. (a)


78. taxonomy:classification ::

(a) etymology:derivation
(b) autonomy:authorization
(c) economy:rationalization
(d) tautology:justification
(e) ecology:urbanisation

Ans. (a)


79. moderator:debate ::

(a) legislator:election
(b) chef:banquet
(c) auditor:lecture
(d) conspirator:plot
(e) umpire:game

Ans. (a)


80. glossary:words ::

(a) catalogue:dates
(b) atlas:maps
(c) almanac:synonyms
(d) thesaurus:rhymes
(e) lexicon:numbers

Ans. (a)


81. lumber: bear ::

(a) roost:hen
(b) bray:donkey
(c) waddle:goose
(d) swoop:hawk
(e) chirp:sparrow

Ans. (a)


82. celerity:snail ::

(a) indolence:sloth
(b) cunning:weasel
(c) curiosity:cat
(d) humility:peacock
(e) obstinacy:mule

Ans. (a)


83. wood:sand ::

(a) coal:burn
(b) brick:lay
(c) oil:polish
(d) metal:burnish
(e) stone:quarry

Ans. (a)


84. carpenter:saw ::

(a) stenographer:typist
(b) painter:brush
(c) lawyer:brief
(d) runner:sneakers
(e) seamstress:scissors

Ans. (a)


85. horns:bull ::

(a) mane:lion
(b) wattles:turkey
(c) antlers:stag
(d) hooves:horse
(e) wings:eagle

Ans. (a)


86. gullible:duped ::

(a) credible:cheated
(b) careful:cautioned
(c) malleable:moulded
(d) myopic:mislead
(e) articulate:silenced

Ans. (a)


87. marathon:stamina ::

(a) relay:independence
(b) hurdle:perseverance
(c) sprint:celerity
(d) job:weariness
(e) ramble:directness

Ans. (a)


88. Skin:man ::

(a) hide:animal
(b) jump:start
(c) peel:potato
(d) eat:food
(e) wool:cloth

Ans. (a)


89. Bamboo:Shoot ::

(a) Bean:Sprout
(b) Peas:Pod
(c) Potato:Eye
(d) Carrot:Root
(e) Leaf:Stem

Ans. (a)


90. Deflect:Missile ::

(a) Siege:Castle
(b) Distract:Attraction
(c) Protect:Honour
(d) Drop:Catch
(e) Score:Goal

Ans. (a)


91. Editor:magazine ::

(a) captain:ship
(b) actor:movie
(c) director:film
(d) player:team
(e) jockey:horse

Ans. (a)


92. Volcano : Lava ::

(a) Fault:earthquate
(b) crack:wall
(c) tunnel:dig
(d) water:swim
(e) floor:polish

Ans. (a)

93. Disregarded
(a) heed
(b) hopeful
(c) evade
(d) dense
Ans. (a)
94. Obviate
(a) becloud
(b) necessitate
(c) rationalize
(d) execute
Ans. (b)

95. Superficial
(a)  profound
(b) exaggerated
(c) subjective
(d) spirited
Ans. (a)

96. chief : tribe :: governer : state

97. epaulette : shoulder :: tiara : head

98. guttural : throat :: gastric : stomach

99. inept : clever :: languid : active

100. Erudite : scholar :: illiterate : ignorant

Verbal Related

1. Depreciation: deflation, depression, devaluation, fall, slump
2. Deprecate : feel and express disapproval,
3. Incentive : thing one encourages one to do (stimulus)
4. Echelon : level of authority or responsibility
5. Innovation : make changes or introduce new things
6. Intermittent : externally stopping and then starting
7. Detrimental: harmful
8. Conciliation : make less angry or more friendly

9. Orthodox: conventional or traditional, superstitious

10. Fallible : liable to error

11. Volatile : ever changing

12. Manifest: clear and obvious

13. Connotation : suggest or implied meaning of expression

14. Reciprocal: reverse or opposite

15. Agrarian : related to agriculture

16. Vacillate : undecided or dilemma

17. Expedient : fitting proper, desirable

18. Simulate : produce artificially resembling an existing one.

19. Access : to approach

20. Compensation: salary

21. Truncate : shorten by cutting

22. Adherence : stick

23. Heterogeneous: non similar things

24. Surplus : excessive

25. Assess : determine the amount or value

26. Cognizance : knowledge

27. Retrospective : review

28. Naive : innocent, rustic

29. Equivocate : tallying on both sides, lie, mislead

30. Postulate : frame a theory

31. Latent : dormant, secret

32. Fluctuation : wavering,

33. Eliminate : to reduce

34. Affinity : strong liking

35. Expedite : hasten

36. Console : to show sympathy

37. Adversary : opposition

38. Affable : lovable or approachable

39. Decomposition : rotten

40. Agregious : apart from the crowd, especially bad

41. Conglomeration: group, collection

42. Aberration: deviation

43. Augury : prediction

44. Creditability : ability to common belief, quality of being credible

45. Coincident: incidentally

46. Constituent : accompanying

47. Differential : having or showing or making use of

48. Litigation : engaging in a law suit

49. Moratorium: legally or officially determined period of delay before
fulfillment of the agreement of paying of debts.

50. Negotiate : discuss or bargain

51. Preparation : act of preparing

52. Preponderant : superiority of power or quality

53. Relevance : quality of being relevant

54. Apparatus : appliances

55. Ignorance : blindness, in experience

56. Obsession: complex enthusiasm

57. precipitate : speed, active
58. corroborative:  refutable
59. obnoxious : harmless
60. sanction:  hinder
61. empirical: experimental
62. aborigine:  emigrant
 63. corpulent :   emaciated

64. officious:  pragmate   

65. Agitator : Firebrand :: Renegade : Turncoat

66. Burst : Sound :: Tinder : Fire

67. Star : cluster :: Tree : clump

68. Piston : Cylinder :: elevator : shaft

69. Mitigate : punishment :: commute : sentence

70. Erudite : scholar :: illiterate : ignorant

71. Fire : Ashes :: explosion : debris

C Aptitude - P4 with solutions

1.      #define square(x) x*x

main()

{

int i;

i = 64/square(4);

printf("%d",i);

}

Answer:

64

Explanation:

the macro call square(4) will substituted by 4*4 so the expression becomes i = 64/4*4 . Since / and * has equal priority the expression will be evaluated as (64/4)*4 i.e. 16*4 = 64

 

2.      main()

{

char *p="hai friends",*p1;

p1=p;

while(*p!='\0') ++*p++;

printf("%s   %s",p,p1);

}

Answer:

ibj!gsjfoet

            Explanation:

                        ++*p++ will be parse in the given order

•   *p that is value at the location currently pointed by p will be taken
•   ++*p the retrieved value will be incremented
•  when ; is encountered the location will be incremented that is p++ will be executed

Hence, in the while loop initial value pointed by p is ‘h’, which is changed to ‘i’ by executing ++*p and pointer moves to point, ‘a’ which is similarly changed to ‘b’ and so on. Similarly blank space is converted to ‘!’. Thus, we obtain value in p becomes “ibj!gsjfoet” and since p reaches ‘\0’ and p1 points to p thus p1doesnot print anything.

3.      #include

#define a 10

main()

{

#define a 50

printf("%d",a);

}

Answer:

50

Explanation:

The preprocessor directives can be redefined anywhere in the program. So the most recently assigned value will be taken.

4.      #define clrscr() 100

main()

{

clrscr();

printf("%d\n",clrscr());

}

Answer:

100

Explanation:

Preprocessor executes as a seperate pass before the execution of the compiler. So textual replacement of clrscr() to 100 occurs.The input  program to compiler looks like this :

                        main()

                        {

                             100;

                             printf("%d\n",100);

                        }

            Note:  

100; is an executable statement but with no action. So it doesn't give any problem

5.      main()

{

printf("%p",main);

}

Answer:

                        Some address will be printed.

Explanation:

            Function names are just addresses (just like array names are addresses).

main() is also a function. So the address of function main will be printed. %p in printf specifies that the argument is an address. They are printed as hexadecimal numbers.

6.       main()

{

clrscr();

}

clrscr();

           

Answer:

No output/error

Explanation:

The first clrscr() occurs inside a function. So it becomes a function call. In the second clrscr(); is a function declaration (because it is not inside any function).

7.       enum colors {BLACK,BLUE,GREEN}

 main()

{

 

 printf("%d..%d..%d",BLACK,BLUE,GREEN);

  

 return(1);

}

Answer:

0..1..2

Explanation:

enum assigns numbers starting from 0, if not explicitly defined.

8.       void main()

{

 char far *farther,*farthest;

 

 printf("%d..%d",sizeof(farther),sizeof(farthest));

  

 }

Answer:

4..2 

Explanation:

            the second pointer is of char type and not a far pointer

9.       main()

{

 int i=400,j=300;

 printf("%d..%d");

}

Answer:

400..300

Explanation:

printf takes the values of the first two assignments of the program. Any number of printf's may be given. All of them take only the first two values. If more number of assignments given in the program,then printf will take garbage values.