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1. …………….. are used in denial of service attacks, typically against targeted web sites. A) Worm B) Zombie C) Virus D) Trojan horse 2. Select the correct order for the different phases of virus execution. i) Propagation phase                      ii) Dormant phase iii) Execution phase                         iv) Triggering phase A) i, ii, iii, and iv B) i, iii, ii and iv C) ii, i, iv an iii D) ii, iii, iv and i 3. A ………………… attaches itself to executable files and replicates, when the infected program is executed, by finding other executable files to infect. A) Stealth virus B) Polymorphic Virus C) Parasitic Virus D) Macro Virus 4. …………………….. is a form of virus explicitly designed to hide itself from detection by antivirus software. A) Stealth virus B) Polymorphic Vir...

1. In computer security, ……………………. means that computer system assets can be modified only by authorized parities. A) Confidentiality B) Integrity C) Availability D) Authenticity 2. In computer security, …………………….. means that the information in a computer system only be accessible for reading by authorized parities. A) Confidentiality B) Integrity C) Availability D) Authenticity 3. The type of threats on the security of a computer system or network are …………………….. i) Interruption                   ii) Interception                  iii) Modification iv) Creation                         v) Fabrication A) i, ii, iii and iv only B) ii, iii, iv and v only C) i, ii, iii and v only D) All i, ii, iii, iv and v 4. Whi...