Which of the following is a feature of SS7?
a. Toll-free services
b. Only nationwide telecommunications
c. Long distance number portability
d. Enhanced call features
a. Toll-free services and d. Enhanced call features
Explanation: The PSTN uses a signaling technique called SS7 that provides enhanced features such as toll-free services, worldwide telecommunications, enhanced call features (for example, call forwarding and three-way calling), and local number portability.
You might also like to view...
Which of the following best describes a white hat hacker?
A) A person that usually follows the law but, in some cases, performs illegal activities B) Someone who hacks into systems with the permission of the owner of the systems C) Someone who hacks into systems to cause some type of harm D) Someone who hacks into computer systems for fun
What are the programming languages of choice for writing software for operating systems, computer networking and distributed client/server applications?
(a) Java and JavaScript. (b) Visual Basic and VBScript. (c) C and C++. (d) Basic and Pascal.