Are these services available using TCP or UDP or both?

Which port number is assigned to each of these services:
a. ftp
b. telnet
c. SMTP
d. World Wide Web HTTP


a. 20 and 21 TCP and UDP
b. 23 TCP and UDP
c. 25 TCP and UDP
d. 80 TCP and UDP

Computer Science & Information Technology

You might also like to view...

The act of physically transferring a unit of data between a peripheral device and memory is called __________.

a. physical I/O b. logical I/O c. either A or B d. neither A nor B

Computer Science & Information Technology

Windows applications in Visual Basic are composed of ____.

A. solutions, projects, and files B. solutions, projects, and data C. data, projects, and files D. solutions, data, and files

Computer Science & Information Technology

Which graphical user interface screen element is used to perform an action?

A) check box B) command button C) drop-down list box D) list box E) radio button

Computer Science & Information Technology

Match each item with a statement below.

A. Responsible for the storage, maintenance, and protection of the information. B. Software programs that reveals its designed behavior only when activated. C. Information remains whole, complete, and uncorrupted. D. Component in a system that allows the attacker to access the system at will, bypassing standard login controls. E. Involves operating an information system that meets the high level of availability sought by system users as well as the confidentiality and integrity needs of system owners and security professionals F. Malicious program that replicates itself constantly. G. Information is free from mistakes or errors. H. Responsible for the security and use of a particular set of information. I. Information is protected from disclosure or exposure to unauthorized individuals or systems.

Computer Science & Information Technology