Chapter 8, Problem 4RQ

Program Plan Intro

System vulnerability:

• When huge data amounts are been kept in electronic form, it becomes susceptible to many threats.
• The information systems in many locations are been interconnected through communication networks.
• The unauthorized access can occur at many access points in network and is not limited to single location.
• The data flowing over networks could be accessed; valuable information could be stolen while transmission or data could be altered without authorization.
• The denial-of-service attacks are launched by intruders to disrupt website operations.
• Internets are vulnerable than internal networks as it is open to everyone.

Explanation of Solution

Roles of firewalls, intrusion detection systems and antivirus software to promote security:

• Firewall:
  • o A firewall denotes mixture of software as well as hardware.
  • o It controls traffic flow that is incoming as well as outgoing.
  • o The internal networks are been prevented from unauthorized access.
  • o It monitors packets with incorrect source or destination and protects internal systems.
  • o It offers proxy server by no access to internal documents.
  • o It restricts type of messages that get through networks...

Explanation of Solution

Encryption protects information:

• It denotes coding as well as scrambling of messages used to secure transmissions over internet...

Explanation of Solution

Role of encryption and digital certificates:

• The digital certificates join with public key encryption for providing further protection of transaction by authenticating identity of user.
• Digital certificates denote data fields used for establishing sender’s identity and provides receiver with means to encode reply...

Explanation of Solution

Disaster recovery planning and business continuity planning:

• Disaster recovery planning:
  • o It creates plans for renovation of services after any event of natural calamity.
  • o It focuses on technical concerns involved in keeping systems functioning.
  • o It denotes back up files as well as maintenance of backup systems or recovery services...

Explanation of Solution

Security problems in cloud computing:

• The company needs to make sure data protection at a level that meets requirements of corporate.
• The company stipulates to cloud provider for data storage based on privacy rules.
• The encryption mechanism of cloud provider should be verified by company...

Explanation of Solution

Measures to improve software quality and reliability:

• The measures for improving software quality and reliability are shown below:
  • o Software metrics:
    • It denotes objective assessments of system in from of quantified measurements.
    • It allows department of information systems and end users for combined measure of system performance.
    • It helps to recognize problems that occur.
    • The metrics must be designed carefully and should have consistent usage.
    • The examples of software metrics includes:
      • Count of transactions processed within a particular time.
      • Online response time...