Persistent  Placement Paper   Whole Testpaper   -13 Oct 2007

Persistent  Placement Paper   Whole Testpaper   -13 Oct 2007


  • Posted by  FreshersWorld 
    7 Jan, 2012

    PERSISTENT PAPER ON 14TH OCTOBER 2007

    Written 
    1> Write a program to count the no. of occurrence of word in given string 
    Ex- Ram is good boy. Ram is doing good job.
    Ram ? 2
    is ? 2
    good ? 2
    boy ? 1
    doing ?1
    job ? 1

    2> Write a program to search the student record on the basis of binary search where records are search on the basis of roll no.

    1> write a program to reverse the string? U can?t use extra space instead some counter variables?
    Ex- Life is beautiful.
    Output?beautiful is Life.
    2> Write a program to count the no. of vertices connected to a vertice in graph using adjancy list.

    I cleared the written test and called for interview.
    There r 2 technical interview and 1 hr interview.

    1 technical interview on 22 oct 2007

    Sir: with hand sacked? Hello, I m mr. jha
    Sir: tell me abt urself.
    Me: said
    Sir: why u have chosen j2me and blue tooth technology 
    Me: as I told in my intro I hve done Blue Presenter system as major project in my last sem., which is based on bluetooth technologies.
    Sir, We want to be different from the people that?s why we have chosen these technologies.
    Sir: wht is this blue presenter
    Me: said.
    Sir: ur favorite subjects 
    Me: data structure, database, Uml and Oops concepts
    Sir: lets first talk abt ds, What is data structure
    Me: said
    Sir: why we use data structure
    Me: said
    Sir: do u know types of data structure, linear and non-linear
    Me: I thought, he will definitely ask me abt graph, so I was socked and looking to the sir
    Sir: wht is nonlinear data structure?
    Me: Sir, Graph and Tree are nonlinear data structures
    Sir: How many types of tree do u know
    Me: binary tree, avl tree, b+ tree, multi-way tree, balanced tree, and threaded tree.
    Sir: which searching algorithms are used for tree?
    Me: after sometime, I replied, sir, preorder, inorder and postorder.
    Sir: just tell me post order of this tree
    Me: said
    Sir: explain me, how u get this
    Me: explained
    Sir: tell me the algo to search the tree level wise
    1
    2 3
    4 5 6 7
    o/p? 1 2 3 4 5 6 7
    Me: first I just made a adjancy list and told sir we can get it from this
    Sir: tell me how u hve converted this tree into it while I m having only root node address
    Me: sorry sir, can I try for other way
    Sir: ya sure,
    Me: had tried 2-3 times and finally, 
    Sir: wht happened
    Me: sir I got one solution but it produces twice the second level 
    Sir: while u go to the 3 level it will print it thrice. Just explain me wht u r trying
    Me: explained
    Sir: just left it. Lets talk abt link list, how to delete a node from linked list
    Me: sir, from where start or end or by value
    Sir: given me one linked list, told me just delete the node whose value is 3
    Me: I have written a code to delete that node
    Sir: but it can?t work in the case if it?s first node
    Me; tried, really it?s not working, I tried in other way, but I didn?t able to write general code? it?s was very embarrassing for me becoz I love linked list and not able to write this simple code that time.
    Sir: tell me the logic
    Me: explained, and it was right, I know
    Sir: wht r the advantage of C over Cpp?
    Me: said
    Sir: what is oops concept?
    Me: explained,
    Sir: what is used in the case of template classes
    Me: sir, reusability
    Sir: is it oops concept
    Me: no sir, Inheritance is used in template classes
    Sir: Do u know database
    Me: yes sir
    Sir: wht is normalization?
    Me: said
    Sir: why we use de-normalization?
    Me: said
    Sir: what is ACID?
    Me: sir they r properties of transaction, Atomicity, Consistency, Isolation and durability.
    Sir: Do u want to ask me any question?
    Me: I thought I was not cleared the interview?
    And I asked sir, in which technologies ur working?
    Sir: all, java, .net c, cpp
    Me: sir, any suggestion for me, as I m fresher, don?t aware of the industries environment
    Sir: U hve made good project in ur curriculum, u just do search on net wht new technologies is coming in market. That?s it.
    Me: thank u sir, nice to meet u?
    Sir: wait down the stair and send the next candidate.

    I was cleared the first round and called for second technical tomorrow

    2 technical
    Me: May I come in sir
    Sir: yes plz, hve a seat
    Me: thank u sir
    Sir: looking to my written test sheet and first interview marks, U have asked abt ds, c/cpp and database in first interview 
    Me: yes sir
    Sir: lets talk abt java? From where u hve made final sem project
    Me: sir, from college
    Sir: tell what is blue presenter system
    Me: explained, 
    Sir: have u use any API or implemented it itself
    Me: Sir we have used bluecove API, which is freely available on the net.
    Sir java doesn?t hve direct support for com, and we have to use third party sw, since we r fresher don?t have enough money to invest, we have used vb for com support.
    Using socket-server programming communicated java and vb.
    Sir: meanwhile another sir has come in the cabin 
    Sir: sir, he has made a project in bluetooth technology, do u want to ask any questions?
    2 Sir: how r u controlling the applications
    Me: Sir, we have implemented one client application which is installed on mobile phone and one server application which is running on desktop pc.
    2 Sir: how to installed client application on mobile.
    Me: sir, just send the jar file to mobile and select that file it ask u, U want to installed the application and follow the instructions.
    2 Sir: what is the use of ur application?
    Me: sir, while we giving presentation, there is a headeck of synchronization between operator and presenter, or while u want to change the slide u have to come near the PC or Laptop means u r not free to give walk around presentation.

    This application free u from this restrictions and walk around presentation improve presentation performance, u can see the list of slide titles on ur mobile, back and forth the slide or even see the slide notes on ur hand.
    1 Sir: wht security u hve used in this project?
    Me: there is no use of security in this project, only one mobile is connected to pc at a time
    1 Sir: let consider I m connected to Pc and shutdown the Pc and some one want to control any application.
    Me: sir, using pass key u connected to the PC, it?s the functionality of bluetooth device.
    Sir when u shutdown the system our application is terminated which is running on PC and then mobile application. So, no other person will perform any operation.
    Sir: what is J2Me?
    Me: said very well
    Sir: what is the difference between desktop application and mobile application?
    Me: said perfectly
    Sir: what criteria r considered while implementing mobile application?
    Me: Sir, since mobile application have less memory and power capability, we have to take care of memory, so that performance of the device is not degraded.
    Sir: Do u know design pattern?
    Me: yes sir, Singleton pattern and factory pattern
    Sir: What is Singleton pattern
    Me: explained with example
    Sir: write the code for singleton pattern
    Me: yes sir,
    Class A
    {
    private static A a;
    private A()
    {}
    public static A getObject()
    {
    if(a.equals(null))
    a=new A();
    else
    return a;
    }
    }
    Sir: what is the difference between equals m/d and == equal to?
    Me: said perfectly
    Sir: can we use == instead of equals m/d in this code 
    Me: sir yes
    Sir: modify the code
    Me: yes sir
    Sir: I think it won?t return or return is missing in this code?
    Me: yes sir, I modified the code
    Class A
    {
    private static A a;
    private A()
    {}
    public static A getObject()
    {
    if(a==null)
    return (a=new A());
    else
    return a;
    }
    }
    Sir: I want to reduce the line of code and use only one return?
    Me: yes sir, I modified the code once more, sir just remove the else and one return
    Class A
    {
    private static A a;
    private A()
    {}
    public static A getObject()
    {
    if(a==null)
    a=new A();
    return a;
    }
    }
    Sir: if there r 2 thread running then what happened with this code
    Me: sir as ?a? is a static member of class, it is shared among both thread
    Sir: but second thread overrides the 1st instance
    Me: sir it may happen 
    Sir: if 2 threads is running simultaneously then, how many times new is called
    Me: thinking, I answered sir once
    Sir: if at the same time both threads at a==null, both find a==null and create the instance then
    Me: I was in dilemma; I remembered it?s just like a dirty read problem, and after sometime
    Sir: think dear, use pen and paper
    Me: after that I answered sir, new is called twice, we can avoid this problem using synchronization
    Java support 2 types of synchronization semaphore and monitor
    Semaphore: when we use synchronized before variables, it?s called?
    Monitor: when we use synchronized before m/d it?s called monitor or using synchronized block 
    And I modified the m/d signature as
    Synchronized public static A getObject(){ }
    Sir: synchronized is used before access modifier
    Me: no sir, after access modifier, since on page I didn?t find space after public I written it before 
    Sir: what is factory pattern?
    Me: I didn?t work on it sir, but I know why we use it and what is the utility of it, and explained it with example.
    Sir: Lets move to data structure, very simple question
    Me: yes sir
    Sir: what is the difference between stack and queue?
    Me: explained with example
    Sir: looking to my written and objective answer sheet, (as I got 5 marks out of 7 in OS), Do u know OS?
    Me: yes sir
    Sir: what is paging?
    Me: I explained whole procedure and why we use paging
    Sir: anil, do u know database
    Me: yes sir
    Sir: what is transaction?
    Me: sir, transaction is a logical unit of set of operation, which is execute all operation or none.
    Sir: What is ACID?
    Me: said
    Sir: U wants to work in java or C
    Me: sir, it?s totally depends on organization requirement.
    Sir: ya I know but tell me whether java or C
    Me: sir, I more interested in java but I don?t have problem in C, if organization needs me to work in C, I can do so.
    Sir: Ok anil
    Me: thank u sir, nice to meet u..

    Before HR interview, assistance hr came and told me we got some comment on ur interview??.. and after that told me but it?s positive side, ok come at 2:30 o?clock, it?s 12:30 o?clock?. Sir it?s too let?
    Sir: no it?s ok, come at 2:30 after taking lunch 
    While I was waiting for lift, sir had come and told me after 10 min ur hr round will be taken, do u hve any problem
    Me: No sir

    HR
    Sir: be comfortable
    Me: yes sir
    Sir: from when u r in pune
    Me: sir, from 5-6 days
    Sir: u hve given any other companies? interview
    Me: yes sir, CSC, nec-hcl and persistent in our college campus and I was out from final round
    Sir: what turns u back 
    Me: means what sir
    Sir: what u have done in theses days and performed very well in interviews
    Me: sir, I have worked on my technical skills, and basically I was working on my communication skills, I think my public speaking skill is not good
    Sir: what u hve done for it?
    Me: sir, talking with friends, reading news papers and I have joined many communities on Internet and orkut and reading articles over there
    Sir: which article you have read recently?
    Me: sir it?s of bluetooth and laser technologies, u can access laptop or pc without mouse or keyboard using laser technologies. There is no need to connect mouse and keyboard.
    Sir: who is the author of this article?
    Me: sir, it?s general discussion group, there is no specific writer
    Sir: how frequently do u open these discussion group 
    Me: sir, whenever I find time
    Sir: what is the charge of Internet in indore?
    Me: sir, 10 rs per hour, but I m not living in indore, my father is transferred from ujjain to dhar.
    Sir: how far you have to travel to access net
    Me: sir, 3-4 km
    Sir: which game do u play?
    Me: cricket
    Sir: ohh boring game
    Me: sir, it?s good for health and I learned team working there
    Sir: do u play professional cricket or gali cricket
    Me: sir, I didn?t play professional cricket, I played in college with my friends
    Sir: how frequently do u play
    Me: sir, I didn?t find time to play cricket now
    Sir: another game which u play
    Me: carom, badminton and computer games.
    Sir: do u have racket in ur home
    Me: yes sir, 
    Sir: Anil, tell me about ur self
    Me: said, and at last I said
    ?I am a person who enjoys challenges and looking for creative solutions to the problem?.
    Sir: do u solve puzzles?
    Me: not frequently sir, but ya when I find, I can
    Sir: I am giving u one puzzle solve it
    Me: there r 2 buckets 1 is of 5 liter and one 6 liter, 3rd bucket of 20 or 25 liter, and 1 nal which can produce water,
    U have to measure 9 liter water without wastage of water
    Wastage of water means? once water is taken from nal other then 9 liter is wastage of water
    Me: I am thinking
    Sir: how much time will you take?
    Me: sir, 5 minute, I am still trying to solve it and ask sir not single liter wastage
    Sir: tell me what is the puzzle
    Me: I explained
    Sir: ok, solve it
    Me: I got one solution but there is 1-liter wastage
    Sir: have u solved it
    Me: yes sir, but there is 1-liter wastage of water
    Sir: tell me the solution
    Me: I explained
    Sir: try without wastage
    Me: I tried in other way but still there is 1-liter wastage
    Sir: sir, what happened? 
    Me: sir, I got 2 m/d but in both cases, there is 1-liter wastage of water
    Sir: so what do you think? There is no solution without water
    Me: sir, I think so
    Sir: just take a 6-liter water put it to 5-liter bucket, what remains
    Me: 1 liter
    Sir: put it into big bucket now try to solve it
    Me: I was trying, 
    2 hr Sir: told me ur 5 minute is over,
    Me: sir, I am trying
    1Sir: what u can?t find the solution?
    Me: sir, I will ask to my friends, 
    Sir: if no one is around u then
    Me: sir, I go to the net, and search the solution, put the query on the puzzle communities that I have joined, and ask for solution
    Sir: it?s means I have to change the question next time
    Me: sir, if I don?t find the answer I will definitely do that
    Sir: put 5-liter water from 5-liter bucket to 6 liter and take one-liter water from nal, now 
    Me: yes sir, we can do like that 5 times
    Sir: 5 times??????????
    Me: sorry sir 4 times
    Sir: 4 times????????
    Me: no sir, in 3 times we can measure 9-liter water without wastage.
    Sir: now what I have to do?
    Me: sir, what can I say?
    Sir: why r u here?
    Me: sir, to be a part of persistent
    Sir: so ask me
    Me: sir, will I selected?
    Sir: yes u r selected, now just behave like an employee of persistent
    Me: I was very happy and smiling
    Sir: do u want to ask me any question?
    Me: no sir,
    Sir: r u sure, u don?t want to ask any question?
    Me: sir, what is the package
    Sir: 3.0
    Me: sir, what abt the bound?
    Sir: we don?t have any written bound just oral bound
    Me: sir, what abt the training?
    Sir: it?s abt 2 and half month on r skills, when do u want to join
    Me: sir after diwali
    Sir: be comfortable, interview is over, just talk in normal way
    Abhi de de offer letter
    Me: yes sir,
    Sir: document is not ready this time, when will u return from home
    Me: 10 nov
    Sir: when will u come for offer letter 
    Me: sir, on 11th nov
    Sir: ok, we will send u mail, just put ur bag here and come with us to take lunch
    Me: thank u sir, both hr told me congrats and then, one hr mam has come there and told me congrats?

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