Sutherland Placement Paper-ON 11 January 2024

Sun Microsystem Previous Years Solved Sample Placement Papers

What would be the Prefix notation for the given equation? A+(B*C)

a) +A*CB

b) *B+AC

c) +A*BC

d) *A+CB

Answer: c

Explanation: Reverse the equation or scan the equation from right to left. Apply the infix-postfix algorithm. The equation inside the bracket evaluates to CB* and outside the bracket evaluates to A+ therefore getting CB*A+. Reversing this and we get +A*BC.

What would be the Prefix notation for the given equation? (A*B)+(C*D)

a) +*AB*CD

b) *+AB*CD

c) **AB+CD

d) +*BA*CD

Answer: a

Explanation: Reverse the equation or scan the equation from right to left. Apply the infix-postfix algorithm. The equation inside the brackets evaluate to DC* and BA* respectively giving us DC*BA*+ in the end. Reversing this we get the +*AB*CD.

What would be the Prefix notation for the given equation? A+B*C^D

a) +A*B^CD

b) +A^B*CD

c) *A+B^CD

d) ^A*B+CD

Answer: a

Explanation: Reverse the equation or scan the equation from right to left. Apply the infix-prefix algorithm. The preference order in ascending order are as follows +*^. Operators are pushed into the stack and popped if its preference is greater than the one which is getting pushed. In the end all operators are popped. The equation evaluates to DC^B*A+. Reversing this we get our following answer.

Out of the following operators (^, *, +, &, $), the one having highest priority is _________

a) +

b) $

c) ^

d) &

Answer: c

Explanation: According to the algorithm (infix-prefix), it follows that the exponentiation will have the highest priority.

Out of the following operators (|, *, +, &, $), the one having lowest priority is ________

a) +

b) $

c) |

d) &

Answer: c

Explanation: According to the algorithm (infix-prefix), it follows that the logical OR will have the lowest priority.

What would be the Prefix notation for the given equation? A^B^C^D

a) ^^^ABCD

b) ^A^B^CD

c) ABCD^^^

d) AB^C^D

Answer: a

Explanation: Reverse the equation or scan the equation from right to left. Apply the infix-prefix algorithm. Here we have to remember that the exponentiation has order of associativity from right to left. Therefore the stack goes on pushing ^. Therefore resulting in ^^^ABCD.

What would be the Prefix notation for the given equation? a+b-c/d&e|f

a) |&-+ab/cdef

b) &|-+ab/cdef

c) |&-ab+/cdef

d) |&-+/abcdef

Answer: a

Explanation: Reverse the equation or scan the equation from right to left. Apply the infix-prefix algorithm. The preference order in ascending order are as follows |&+*/.

What would be the Prefix notation for the given equation? (a+(b/c)*(d^e)-f)

a) -+a*/^bcdef

b) -+a*/bc^def

c) -+a*b/c^def

d) -a+*/bc^def

Answer: b

Explanation: Reverse the equation or scan the equation from right to left. Apply the infix-prefix algorithm. The preference order in ascending order are as follows +*/^. Brackets have the highest priority. The equations inside the brackets are solved first.

A fruit basket contains more apples than lemons. There are more lemons in the basket than there are oranges. The basket contains more apples than oranges. If the first two statements are true, the third statement is

a. true.

b. false.

c. uncertain.

Answer: a. true.

The Shop and Save Grocery is south of Greenwood Pharmacy. Rebecca’s house is northeast of Greenwood Pharmacy. Rebecca’s house is west of the Shop and Save Grocery. If the first two statements are true, the third statement is

a. true.

b. false.

c. uncertain.

Answer: b. false.

Joe is younger than Kathy. Mark was born after Joe. Kathy is older than Mark. If the first two statements are true, the third statement is

a. true.

b. false.

c. uncertain.

Answer: a. true.

All spotted Gangles have long tails. Short-haired Gangles always have short tails. Long-tailed Gangles never have short hair. If the first two statements are true, the third statement is

a. true.

b. false.

c. uncertain.

Answer: a. true.

Battery X lasts longer than Battery Y. Battery Y doesn’t last as long as Battery Z. Battery Z lasts longer than Battery X. If the first two statements are true, the third statement is

a. true.

b. false.

c. uncertain.

Answer: c. uncertain.

Martina is sitting in the desk behind Jerome. Jerome is sitting in the desk behind Bryant. Bryant is sitting in the desk behind Martina. If the first two statements are true, the third statement is

a. true.

b. false.

c. uncertain.

Answer: b. false.

Middletown is north of Centerville. Centerville is east of Penfield. Penfield is northwest of Middletown. If the first two statements are true, the third statement is

a. true.

b. false.

c. uncertain.

Answer: c. uncertain.

Taking the train across town is quicker than taking the bus. Taking the bus across town is slower than driving a car. Taking the train across town is quicker than driving a car. If the first two statements are true, the third statement is

a. true.

b. false.

c. uncertain.

Answer: c. uncertain.


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Sun Microsystem Placement Paper -: Technical Questions With Answers