Showing posts with label aptitude test. Show all posts
Showing posts with label aptitude test. Show all posts

The Top IT Company Solved Placement Papers 1

    Interior of Ben Hill Griffin Stadium, also kno...Image via Wikipedia4 Sample CTS Type Interview Questions

    Dear Reader, In CTS interviews, you can expect to be quizzed on conceptual questions. Below are four sample questions for your practice.

    Interview Question 1

    How inline functions are interpreted by the compilers ? What could be the main use ?

    Answer 1

    When inline functions are used compilers are expected to expand the function in every place of call. This approach saves time when there are lots of function calls.

    Interview Question 2

    Which among the following is preferred for embedded applications, microprocessors or microcontroller?

    Answer 2

    Microcontrollers are used for embedded applications.

    Interview Question 3

    In SDLC, what is black box testing (which comes under testing phase) ?

    Answer 3

    Black box testing is nothing but testing the actual functionality of a module/program at a high level. Here one may test different outputs for different sets of inputs. Also the one may not worry about the module/program internals under testing.

    Interview Question 4

    In SDLC, which is the testing phase that takes care that client requirements are actually met after installing the application on the site ?

    Answer 4

    UAT or User Acceptance Testing is the concerned testing phase.

    Dear CV Reader, Are You Preparing Seriously For Your Placement Tests ?


    3 TCS Sample Networks Related Interview Questions


    Dear Reader, you can always expect questions from computer networks.Below are three sample Interview Questions.

    Question 1

    Which is the protocol used for communication between network managing computer and all other computers or devices within the same network ? Hint : This is an application layer level (in OSI) protocol.

    Answer 1

    Answer is SNMP - Simple Network Management Protocol.

    Question 2

    Say there are two similar programs installed on Unix and Windows systems in a network. If these programs require data to be passed back and forth across the network, Which of the OSI layers will be responsible for handling platform differences ? Hint : This layer is also capable of inclusion of encryption services.

    Answer 2

    Answer is Presentation Layer.

    Question 3

    Name a simple protocol that is very widely used in measuring time taken for a server to respond to a request in network ? Hint : With this protocol one can check if a remote server is actually connected/active.

    Answer 3

    Answer is Ping Protocol.

    Dear CV Reader, Are You Preparing Seriously For Your Placement Tests ?


    CTS 3 Sample Sequences Questions

    In CTS you can expect few questions from sequences. Though generally easy to crack, these questions require good concentration on your part, else could get tricky.

    Placement Question 1

    Find the next pair in the sequence - AB CA FB JA

    Options : 1) OB 2) OC 3) NA 4) NB

    Answer 1

    Answer is option 1) OB.

    Reason.

    Consider the first terms of the sequence A,C,F,J... Here C is one next A, F is two next C, J is three next F and so on. Hence next alphabet would be O (which is four next J). Consider second terms B,A,B,A... Hence this is an alternating sequence of Bs and As. Hence next alphabet would be B.

    Based on the above two statements, the answer is OB.

    Placement Question 2

    Find the next pair of alphabets in the sequence - AB EC ID OE

    Options : 1) LF 2) UF 3) UG 4) LE

    Answer 2

    Answer is option 2) UF.

    Reason.

    Consider the first terms of the sequence A,E,I,0... Have you seen this somewhere ? :). Yes, this is our good old sequence of vowels. Hence next vowel would be U.

    Consider second terms B,C,D,E... This is a plain sequence of alphabets in order. Hence next one would be F. Combining above two statements answer is UF.

    Placement Question 3

    (Easy Question) Find the next alphabet in the sequence... A,Z,B,Y,_,X ?

    Options : 1) D 2) C 3) F 4) G

    Answer 3

    You would had already guessed. Yes, it is option 2) C.

    Reason

    Consider the second, fourth and last alphabets. They are Z,Y and X which are the last three alphabets. Similarly consider the first and third terms - A and B. These are the first two alphabets. Hence logically the blank should be occupied by C which is the third alphabet from the start.

    Wipro 3 Sample C Basics Interview Questions

    During Wipro interviews, you can expect few questions touching the basics of C. These may not be difficult, but would require a good understanding of the basics. Let us discuss 3 sample questions which can help during your interviews.

    Interview Question 1

    Tell one good programming requirement that illustrates the fact that C is a strongly typed language ?

    Answer 1

    C involves variable declarations before their usage. This makes it clear that C is strongly typed.

    Interview Question 2

    Consider a weather report application in C where any change in temperature by +- 2 degrees will be constantly reported to the system and the application should store the times of the day when these changes took place. Which is a better data structure to be used in this scenario - an array or a linked list ?

    Answer 2

    Linked List would handle dynamically growing data very well when compared to arrays. Hence it would be a better choice.

    Interview Question 3

    Can one use arrays to implement stacks or queues over linked lists ? Is it feasible ?

    Answer 3

    Thought linked lists are commonly used for implementing stacks or queues, with good programming logic, arrays can also be used to implement those. However, as you would expect, linked lists are far more efficient in this scenario.


    4 CTS Sample Interview Easy Questions

    You can expect technical questions from various subjects like sql,microprocessors,algorithms and their complexities etc during CTS interviews. Below are few sample questions (easy) for your practice.

    Interview Question 1

    Can u tell a simple difference between candidate keys and primary key ?

    Answer 1

    Both candidate and primary keys uniquely identify a row in a table. However, only one can be chosen as primary key, while there can be many candidate keys.

    Interview Question 2

    Is semicolon mandatory at the end of a block statement in C ?

    Answer 2

    No, semicolon is not essential at the end of a block statement. For example, consider a statement of the form if(x==5){...some statements...}
    In the above statement, there is no need for semicolon after the closing '}'.

    Interview Question 3

    Consider there are two programs written respectively using two algorithms A and B. Say A has a complexity of n^2 and the other has a complexity of n/2. Given the same number of inputs which would take longer time to run.

    Answer 3

    First program written using algorithm A will take longer time. Higher the order of complexity, longer the time taken for execution.

    Interview Question 4

    How microcontroller is different from microprocessor with respect to hardware and memory requirements ?

    Answer 4

    Microcontroller, unlike microprocessor, is self contained with necessary hardware like I/O, memory etc embedded to it.

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The Top IT Company Solved Placement Papers

    GLASGOW, SCOTLAND - FEBRUARY 12:  A general vi...Image by Getty Images via @daylifeWipro Type Time & Work Problems

    Time & Work is a favourite area considering placement test of any big company like Wipro. You can always expect few questions from time and work section. Though tagged as wipro sample paper, one can expect these kinds of questions in other papers as well.

    Question 1

    Consider three people A,B and C. Let A and B can finish a job in 21 days, B and C in 14 days and A and C in 28 days. Who will take the least time when working independently ?

    Options : 1) A 2) B 3) C 4) Can't be determined

    Answer 1

    Correct answer is B

    Consider WA, WB and WC be the work done per day by A,B and C respectively. Then

    WA + WB = 1/21 -- eq 1

    WB + WC = 1/14 -- eq 2

    WA + WC = 1/28 -- eq 3

    Eq 2 - Eq 3 will give

    WB - WA = 1/14 - 1/28 = 1/28 -- eq 4

    Eq 1 + Eq 4 will give

    2WB = 1/21 + 1/28 = 7/84

    WB = 7/168

    Sub value of WB in eq 1, we get

    WA = 1/21 - 7/168 = 1/168.

    Sub value of WA in eq 3, we get

    wc = 1/28 - WA = 1/28 - 1/168 = 5/168

    Since WB (work done by B per day) is greater when compared to WA and WB clearly B will be able to the maximum work on any given day and hence he should consume least amount of time when working independently.

    Question 2

    Consider two postmen A and B respectively. A is young and can deliver 20 parcels in 3 hours while B is older than A and can deliver only 15 parcels in 4 hours. If the total number of parcels to deliver is 60, how long they will take working together.

    a. 121/12 hours b. 144/36 hours c. 144/25 hours d. 121/25 hours

    Answer 2

    Correct ans is option c. 144/25 hours.

    A can deliver 20 parcels in 3 hours. Hence for 1 hour he can deliver 20/3 parcels.
    B can deliver 15 parcel in 4 hours. Hence for 1 hour B needs 15/4 parcels.

    When A and B work together, for 1 hour they can deliver, 20/3 + 15/4 parcles = 80 + 45 /12 = 125/12 parcels.
    Hence to deliver 60 parcels they would require : 60 X 12/125 = 720/125 = 144/25 hours

    Question 3

    Consider a courier company A which can deliver 100 parcels in 5 days with 5 men working for 8 hours a day. Consider another courier company B where every employee is equally effecient as that of company B. Company B is short of one man when compared to A and has a policy of asking its workers to work only for 6 hours a day. How long (in days) company B will take to deliver 100 parcels.

    Options : a. 8.3 b. 24 c. 12 d 6.6

    Answer

    Correct answer is a. 8.3 days

    Total amount of work W = N x D X W

    where N = number of men, D = number of days, W = amount of work per day

    Applying the above formula for company A we get,

    Work done by company A to deliver 100 parcels = 5 X 5 X 8 = 200 -- eq 1

    Work done by company B to deliver 100 parcels = 4 X D x 6 = 24D -- eq 2

    Since the work to be done is same in both the cases, eq 1 = eq2

    or 200 = 24D or D = 8.3



    4 Sample TCS Sentence Completion Questions


    Dear Reader, sentence completion questions are the ones asking you to find contextually correct words (synonyms) to fill the given blanks. These types of placement questions can be expected on papers of several companies including TCS. Hence it is very essential to develop your vocabulary and the ability to pick the correct word in context.

    Question 1

    Value of currency started increasing which ultimately kick started __ (a. deflation / b. depreciation / c. disinflation) in economy.

    Answer : a. deflation

    Reason :Deflation is the term used to denote a fall in prices of goods indicating currency value rise. Though disinflation could appear close in context, it actually means a slow rise in inflation rather than an exact opposite of inflation.

    Question 2

    The introduction of number zero to mathematics is considered to be one of the greatest __ (a. innovations / b. inventions / c. discoveries) of all times.

    Answer: a. innovations

    Reason : Innovation means a change that could be considered to have brought a great positive change in some field. Hence innovation fits the context well. However, invention means to invent something new and discovery means to find something unknown.

    Question 3

    __ (a. incentives / b. bonuses /c. gifts) generally motivate people to carry out tasks in an efficient manner.

    Answer: a. Incentives

    Reason : Incentive means a motivating factor that encourages people to carry out their tasks efficiently. Though bonuses and gifts closely suit the context, they generally mean only monetary benefits whereas incentive can mean even non monetary benefits like appreciation.

    Question 4

    ___ (a. Idiom / b. Connotation /c. Paradox) refers to words implying different meaning than the actual literal meaning.

    Answer : b. Connotation

    Reason : Connotation is where words actually mean something but their implied meaning would be different. For example think of the words 'warm reception'.


    Wipro Type Conceptual Interview Questions

    Dear Reader, in Wipro technical interviews, you may not only expect questions from facts but also you can expect questions asking you to explain the concepts. Below are 3 sample technical interview questions that can be used by you to prepare for Wipro and other similar interviews.

    Question 1

    In software applications, especially in JAVA based applications, how design patterns help after a problem/requirement is identified ?

    Answer 1

    Design pattern can be treated as a way or template to solve a problem depending upon the nature of the problem/requirement. Though they themselves cannot solve a problem, they provide greater insights into the best possible ways to solve them.

    Question 2

    Say two programs essentially dealing with solving same problem through similar algorithms. Let A be written using pointers and B be written using arrays. Which one will be memory efficient and which will be more readable.

    Answer 2

    A will be more memory efficient than B and B will be more readable than A. Reason : generally pointers are more memory efficient when used by an experienced programmer. And arrays are generally easily readable and can be easily understood by even beginner level programmer.

    Question 3

    What is the integrity constraint in SQL which when used ensures that values in a column of a table have a corresponding member on another column of another table.

    Answer 3

    Foreign Key is the answer (self explanatory as the question itself has got the explanation)


    TCS Type 3 Facts & Concepts Interview Questions

    You could expect questions on TCS interviews asking you to pick and explain a right answer based on the choices presented before you. These types of questions are not only limited to TCS but can be expected on several other companies placements/interviews as well.

    Question 1

    Which of the C variable qualifiers amongst const and Volatile provides more data safety ? Explain the reason.

    Answer 1

    const is the qualifier that provides more data security by throwing error when an accidental attempt is made to modify the same.

    Question 2

    Which is more memory efficient in generic sense - Arrays or Linked Lists ?

    Answer 2

    Actually, there is no significant difference in memory requirement for arrays and linked lists as both increase with increase in data. (However, linked lists are generally easier to work with dynamic data)

    Question 3

    Among function declaration and function definition which of the following gives first hand information to the compiler about its return data type and arguments.

    Answer 3

    Function declaration is the answer, as it precedes function definition. With function declaration, the compiler can get to know about its return data type, the number and type of the arguments etc.

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