Professional Knowledge Quiz for SBI, IBPS IT Officer - Set 3

In IBPS IT Officer Exam, the Professional Knowledge Section comprises 50 questions and 75 marks. If you want to perform better in upcoming IBPS IT Officer Exam, try to get at least 50 marks in this section.

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1. A program counter contains a number 825 and address part of the instruction contains the number 24. The effective address in the relative address mode, when an instruction is read from the memory is:
   (A) 849
   (B) 850
   (C) 801
   (D) 802
   (E) 807
   
   View Answer

   (B) 850
   Explanation::
   Effective address will be = 825+24=849
   So, program counter hold the effective address value by increasing valued 1. So, 850
2. Software testing techniques are most effective if applied immediately after
   (A) Requirement Specification
   (B) Design
   (C) Coding
   (D) Integration
   (E) None
   
   View Answer

   (B) Design
   Explanation::
   Software testing techniques are most effective if applied immediately after design phase.
3. In a unit testing of a module, it is found that for a set of Test data, at the maximum 90% of the code alone were tested with the probability of success 0.9. The reliability of the module is
   (A) greater than 0.9
   (B) equal to 0.9
   (C) at most 0.81
   (D) at least 1/0.81
   (E) at least 1/0.9
   
   View Answer

   (C) at most 0.81
   Explanation::
   90% of 0.9= .9×.9=0.81
   At most 0.81
4. Which of the following is/are syntactically correct in Java?
   (A) int [ ] wer;
   (B) int wer [ ];
   (C) wer [int]:
   (D) A and B
   (E) B and C
   
   View Answer

   (D) A and B
   Explanation::
   Both A and B are correct
5. Which of the following 4 bit numbers equals in 2’s complement?
   (A) 1010
   (B) 0101
   (C) 1000
   (D) All
   (E) None of these
   
   View Answer

   (C) 1000
   Explanation::
   1000 is S 2’s complement is
   0111
   +1
   1000
6. Which of the following is the minimum error code?
   (A) Octal Code
   (B) Binary
   (C) Bray Code
   (D) Excess-3-Code
   (E) None
   
   View Answer

   (C) Bray Code
   Explanation::
   No explanation
7. How many characters per sec (7bit+parity) can be transmitted over a 2400 bps line in asynchronous mode?
   (A) 300
   (B) 240
   (C) 320
   (D) 430
   (E) None
   
   View Answer

   (B) 240
   Explanation::
   for asynchronous mode 1 start and 1 stop bit is also transmitted so, total bit transmitted=8+2=10 bit Character per sec=2400/10=240
8. In a positive edge triggered J.K flipflop, a low J and a low K produces
   (A) High State
   (B) Low State
   (C) Toggle State
   (D) No Change
   (E) Both B and C
   
   View Answer

   (D) No Change
   Explanation::
   In JK flip flop
   If J is low means 5=0
   And k is a also low means k=0
   J K no state
   No change
9. An algorithm is made up of 2 modules M1 and M2. If order of M1 is f(n) and M2 is g(n) then order of the algorithm is
   (A) max(f(n), g(n))
   (B) min (f(n), g(n))
   (C) (f(n)+g(n))
   (D) f(n)×g(n)
   (E) None
   
   View Answer

   (A) max(f(n), g(n))
   Explanation::
   No explanation
10. The post fix expression of (A+B)*(C*D-E)*f/b is
    (A) AB+CD*E-FB/**
    (B) AB+CD*E-F**G/
    (C) AB+CD*E*F*G/
    (D) AB+CDE*-*F*G/
    (E) None
    
    View Answer

    (A) AB+CD*E-FB/**
    Explanation::
    Given C^P: (A+B)*(C*D-E)*F/G is
    AB+*CD*E-*F/b
    AB+*CD*E-*FG/
    AB+CD*E-FB/**