PSI Previous Years Solved Sample Placement Papers
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When an operand is read, which of the following is done?
a) It is placed on to the output
b) It is placed in operator stack
c) It is ignored
d) Operator stack is emptied
Answer: a
Explanation: While converting an infix expression to a postfix expression, when an operand is read, it is placed on to the output. When an operator is read, it is placed in the operator stack.
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What should be done when a left parenthesis ‘(‘ is encountered?
a) It is ignored
b) It is placed in the output
c) It is placed in the operator stack
d) The contents of the operator stack is emptied
Answer: c
Explanation: When a left parenthesis is encountered, it is placed on to the operator stack. When the corresponding right parenthesis is encountered, the stack is popped until the left parenthesis and remove both the parenthesis.
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Which of the following is an infix expression?
a) (a+b)*(c+d)
b) ab+c*
c) +ab
d) abc+*
Answer: a
Explanation: (a+b)*(c+d) is an infix expression. +ab is a prefix expression and ab+c* is a postfix expression.
- Which is the part of a computer that one can touch and feel?
a) Hardware
b) Software
c) Programs
d) Output
e) None of these
Answer: a) Hardware - A Call in Marketing means:
a) to phone the customers
b) to visit the customers
c) to visit the marketing site
d) to call on prospective customers
e) None of these
Answer: d) to call on prospective customers - Delivery Channel means:
a) maternity wards
b) handing over the products to the buyers
c) places where products are made available to the buyers
d) All of these
e) None of these
Answer: c) places where products are made available to the buyers - Processing involves:
a) inputting data into a computer system
b) transforming input into output
c) displaying output in a useful manner
d) providing relevant answers
e) None of these
Answer: b) transforming input into output - One of the following is a target group for the marketing of Internet Banking:
a) All the customers
b) All the educated customers
c) All the computer-educated customers
d) Only creditors
e) All of these
Answer: c) All the computer-educated customers