Persistent Placement Paper -: Aptitude & Computer Knowledge Questions With Answers

Persistent Previous Years Solved Sample Placement Papers

1. Let O(0, 0, 0), P(3, 4, 5), Q(m, n, r), and R(1, 1, 1) be the vertices of a parallelogram taken in order. What is the value of m + n + r?

   A) 6

   B) 12

   C) 15 (Ans)

   D) More than 15

2. What is the solution of the differential equation 3e^x tan y dx + (1 + e^x) sec² y dy = 0?

   A) (1 + e^x) tan y = c

   B) (1 + e^x)³ tan y = c

   C) (1 + e^x)² tan y = c

   D) (1 + e^x) sec² y = c (Ans)

   Where c is a constant of integration

3. What is the locus of points, the difference of whose distance from two points being constant?

   A) Pair of straight lines

   B) An ellipse

   C) A hyperbola (Ans)

   D) A parabola

4. What is the differential equation for y² = 4a(x - a)?

   A) yy' - 2xyy' + y² = 0

   B) yy'(yy' + 2x) + y² = 0

   C) yy'(yy' - 2x) + y² = 0 (Ans)

   D) yy' - 2xyy' + y = 0

5. If (4, 0) and (-4, 0) are the foci of an ellipse and the semi-minor axis is 3, then the ellipse passes through which one of the following points?

   A) (2, 0)

   B) (0, 5)

   C) (0, 0)

   D) (5, 0) (Ans)

6. Under what condition do the planes bx - ay = n, cy - bz = l, az - cx = m intersect in a line?

   A) a + b + c = 0

   B) a = b = c

   C) al + bm + cn = 0 (Ans)

   D) l + m + n = 0

7. A good judge never gropes ____________ the conclusion.

   A) To

   B) At

   C) On

   D) For (Ans)

8. Nobody in our group is a genius _________ winning friends and in convincing people.

   A) For

   B) In

   C) Of

   D) At (Ans)

9. The primary goal of the......................protocol is to provide a private channel between communicating applications, which ensures privacy of data, authentication of the partners, and integrity.

   • A) SSL
   • B) ESP
   • C) TSL
   • D) PSL

   Answer: A) SSL

10. The................is used to provide integrity check, authentication, and encryption to IP datagram.

    • A) SSL
    • B) ESP
    • C) TSL
    • D) PSL

    Answer: B) ESP

11. In........................mode, a common technique in packet-switched networks consists of wrapping a packet in a new one.

    • A) Tunneling
    • B) Encapsulation
    • C) Both A and B
    • D) None of the above

    Answer: C) Both A and B

12. The.............................is a collection of protocols designed by Internet Engineering Task Force (IETF) to provide security for a packet at the network level.

    • A) IPsec
    • B) Netsec
    • C) Packetsec
    • D) Protocolsec

    Answer: A) IPsec

13. At the lower layer of SSL, a protocol for transferring data using a variety of predefined cipher and authentication combinations is called the ……………….

    • A) SSL handshake protocol
    • B) SSL authentication protocol
    • C) SSL record protocol
    • D) SSL cipher protocol

    Answer: C) SSL record protocol