BSc IT Sem VI 2014 2015 2015 Semll Vl Internal Sucurity Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 Write short notes on the following:
   • a) Logic bombs. “Digging for worms” Filtering services for DNS
   • a) Explain the principles of security. 8 Explain Denial of Service attack? What are the variations of the DOS attack? Explain’ . 6 Describe the life-cycle of a virus. 6
   • a) Explain any of the symmetric in detail
   • b) Can the firewall store the dynamic state entries? If yes, what firewall does support the 6 same? Explain the characteristics ofthe same. 6 protocol failure? Explain the loophole you identified in the protocols such
2. Q4 a) What are worms? How they spread onto your system? What are the different types of Explain the ways to eradicate them Explain the different types of firewall configuration Explain the steps in implementing digital signature for your 6 8 marks
   • a) Explain substitution and transposition cipher techniques in Explain the characteristics, advantages and limitations of the firewall. 6 Trojan Horse Program? How they programs? Explain its
3. Q6 a) Explain any of the message digest algorithms. What are the commonly used methods for “Authentication of users”? How is 6 authentication failure observed in this? Whatis security policy? Explain them in detail. - 6 Compare digital signature and digital envelop, : 5 Compare and contrast symmetric and asymmetric cryptography Compare active and passive : 5 8 marks
4. Q4 Compare distributed and traditional firewall. 5 marks

Read from the scan above, so a character or two may differ. The scan is the original.