When customers of a Web site are unable to access it due to a bombardment of fake traffic, it is known as:
A. A virus
B. A Trojan Horse
C. Cracking
D. A denial of service attack.
Answer: Option D
A. A virus
B. A Trojan Horse
C. Cracking
D. A denial of service attack.
Answer: Option D
A light sensitive device that converts drawing, printed text or other images into digital form is
A. Keyboard
B. Plotter
C. Scanner
D. OMR
E. None of these
Which protocol provides e-mail facility among different hosts?
A. FTP
B. SMTP
C. TELNET
D. SNMP
E. None of these
The basic architecture of computer was developed by
A. John Von Neumann
B. Charles Babbage
C. Blaise Pascal
D. Garden Moore
E. None of these
from which book this question taken please reply I need help in computer fundamental