Question 20 to 24.
20. A trackball is an example of the common computer
a) Input devices b) Output devices c)Processing devices
d) input and output.
21. The name of the program that displays the on- screen elements with which a user interacts is
a) Software System d) Application software
c) Operating
b) Utility program
22. Computers that manage network resources and provide centralized storage areas are referred to as
a) workstations b) servers c) Clients d) Services
23. Which of the following specifies the format of the packets that are sent and received among router and end systems?
a) IP protocol b) formatting protocol c) processing protocol d) TCP
24. TCP offers one of following services to the processes at the application layer a) linkage delivery service b) optimization service c)Stream Delivery Service is one d) link dat