Delhi Police Constable Exam Model Paper 3

Spam:

• It is the use of messaging systems to send an unsolicited message to large numbers of recipients for the purpose of commercial advertising.
• The term is applied tom similar abuses in other media , Usenet newsgroup spam, instant messaging spam, Web search engine spam, spam in blogs, wikispam, online classified ads spam, mobile phone messaging spam, Internet forum spam, junk fax transmissions, spam mobile apps, social spam, television advertising and file sharing spam.