Total No. of Questions : 6] SEAT No. : P4962 [Total No. of Pages :2 TE/In Sem. - 150 T.E. (Computer) COMPUTER FORENSIC & CYBER APPLICATIONS ( 2012 Course) (Semester -I) (310245) Time : 1 Hour] Instructions to the candidates: 1) Answer question number 1 or2, 3 or 4, 5 or 6. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. Q1) a) b) [Max. Marks : 30 Explain twisted pair cable.  Explain adaptive listening technique of sensor MAC.  OR Q2) a) b) Q3) a) b) What is slotted and pure ALOHA? Explain in detail.  Differentiate between circuit switching and packet switching.  What is Modus operandi? Explain MO behaviour with example.  What measures should be taken while preserving a digital crime scene.  OR Q4) a) b) Define digital forensics & explain principles of digital forensics.  Describe in detail the level of certainty in digital forensics.  P.T.O.
Q5) a) b) Explain how time can be instrumental in investigating an alibi with example.  Write short note on phishing.  OR Q6) a) b) Write short note on forensic preservation of volatile data.  Explain steps in investigative reconstruction of a gender offence.  R R R In Sem. - 150 2