Computer aptitude for SBI PO – Set 2

Computer Aptitude for SBI PO. Last year SBI Clerk and SBI PO 2016 asked Computer Aptitude Questions instead of Computer Awareness Questions. This time also the same type of questions will be asked. Practice the following questions.
Directions (1-5): A person goes to ATM machine to withdraw some cash. So, different steps are given in the form of a data flow diagram. Study the given data flow diagram and answer the questions that follow.

  1. How many maximum times a person can enter wrong PIN?
    A) 3
    B) 4
    C) 5
    D) None of these
    E) Cannot be decided on the basis of the diagram
    View Answer
      Option A
  2. What relevant step should the customer take if he wants to check his balance before withdrawing the money, just after he has selected the cash withdrawal option?
    A) He should request the bank official to tell his balance
    B) Press the Back button and select Balance Inquiry
    C) Press the cancel button and restart the process and check the balance
    D) Approach another ATM
    E) Cannot be decided on the basis of the diagram
    View Answer
      Option C
    Explanation
    :
     Nowhere in the diagram anything is mentioned about back button, so Option B cannot be the answer
  3. Which of the following step is logically missing from the above diagram?
    A) If ATM has money?
    B) Cash Deposit option
    C) The withdrawal amount is less than or equal to the amount in the account of the person
    D) The ATM should count the money properly
    E) These all are not important
    View Answer
      Option C
    Explanation
    :
    Option C is very important step. Else a person can withdraw more money than he actually has in his account.
  4. What can a person do if he wants to get his card unblocked before 24 hours in case of entering wrong PIN?
    A) A card cannot be unblocked before 24 hours.
    B) Customer will have to write an application to the branch manager
    C) He can change his PIN at another ATM and reuse the card before 24 hours
    D) He can approach the Ombudsman.
    E) Cannot be decided on the basis of the diagram
    View Answer
      Option E
    Explanation
    :
    Option A and B are just a possibility in real case scenario, but cannot be said as per this diagram.
  5. Which of the following option should be present at the starting of the diagram to make the Diagram more logically correct and meaningful?
    A) Select Option
    B) Is the amount within the daily withdrawal limit set by the bank?
    C) Does the ATM has money?
    D) Dispense Money
    E) None of these
    View Answer
      Option C
    Explanation
    :
     If Option C is checked in the beginning, time will be saved if the ATM is out of money.

Directions (6-10): Study the following information and answer the questions that follow:

In a certain code, the symbol for 0 is # and for 1 is @. The numbers greater than 1 are to be represented using these two symbols only. The value of the symbol for 1 doubles itself every time it shifts one place to the left. Study the following examples.

‘0’ is written as #              ‘1’ is written as @   

‘2’ is written as @#          ‘3’ is written as # @@   

‘4’ is written as @##          ‘5’ is written as @#@   

And so on

 

  1. What will be (@@#@##) + (@@#) – (@@@@)
    A) 40
    B) 32
    C) 22
    D) 50
    E) 43
    View Answer
     Option E
    Explanation:

    (@@#@##) + (@@#) – (@@@@)
    = (110100) + (110) – (1111)
    = 52 + 6 – 15 = 43
  2. What will be (@#@) × (@@#)
    A) @@@#@
    B) @@#@#
    C) @@@@#
    D) @#@@@
    E) @@@##
    View Answer
     Option C
    Explanation:

    @#@  – 5
    @@#  – 6
    5*6 = 30
  3. What will be √[(@####) + (@##@)] + (@##@##@)
    A) 80
    B) 62
    C) 72
    D) 84
    E) 78
    View Answer
     Option E
    Explanation:

    @####  – 16
    @##@  – 5
    @##@##@  – 73
    So √[(@####) + (@##@)] + (@##@##@)  = √[16+9] + 73 = 5 + 73 = 78
  4. What will be the remainder of when (@@@@@@@) is divided by (@##@@)
    A) @@@@
    B) @@#@
    C) @##@
    D) @@##
    E) @#@#
    View Answer
     Option B
    Explanation:

    @@@@@@@  – 127
    @##@@  – 19
    So remainder of (127/19) = 13 = (1101) = (@@#@)
  5. What is the HCF of (@@@@#) and (@@#@@#)
    A) @##
    B) @@@
    C) @#@
    D) @@#
    E) None of these
    View Answer
     Option D
    Explanation:

    30 = 6*5 and 54 = 6*9
    So HCF of (30 and 54) = 6
    6 = 110 = @@#

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