This question appears in Mumbai University > Software Testing & Quality Assurance Subject

Marks: 5 M

Year: Dec 2013

• A Denial Of Service (DOS) attack is an incident in which a user or organization is deprived of the services of a resource they would normally expect to have.

• In a distributed denial-of-service, large numbers of compromised systems (sometimes called a botnet) attack a single target.

• In computing, a denial-of-service (DoS) or distributed denial-of-service (DDoS) attack is an attempt to make a machine or network resource unavailable to its intended users.

• The basic types of DOS attack can include flooding the network to prevent legitimate network traffic or disrupting a particular individual from accessing a service.

• The availability acceptance criteria in acceptance testing refer to the requirement that the data must be protected from a denial of service (DOS) to unauthorized users.

• Confidentiality and Availability acceptance criteria provide support against DOS attack.

• Privacy in communication is achieved by using encryption where all the customer data must be stored in a secure place in accordance with the policies of customer right.

• Hence the system is protected against virus, worm and bot attacks thereby no unauthorized access to the system is permitted, that is, user authentication is performed.

• Files and other data are also protected from unauthorized access thus preventing DoS attack.