| 2641 |
In which unit is the data transfer rate of a channel usually measured? |
Computer Science/Informatics Practices
Communication concepts |
Easy |
| 2642 |
How long does it take to send a 96 megabit file over a link with a data transfer rate of 12 Mbps? |
Computer Science/Informatics Practices
Communication concepts |
Medium |
| 2643 |
In which switching technique is a dedicated path reserved between sender and receiver for the entire session? |
Computer Science/Informatics Practices
Communication concepts |
Medium |
| 2644 |
Which statement about packet switching is correct? |
Computer Science/Informatics Practices
Communication concepts |
Hard |
| 2645 |
Which transmission medium carries data as pulses of light? |
Computer Science/Informatics Practices
Transmission media |
Easy |
| 2646 |
Which wireless medium is used by a typical TV remote control? |
Computer Science/Informatics Practices
Transmission media |
Easy |
| 2647 |
Why are wires in twisted pair cables twisted together? |
Computer Science/Informatics Practices
Transmission media |
Medium |
| 2648 |
Two buildings 2 km apart in an industrial area with heavy electrical machinery must be linked at very high sp… |
Computer Science/Informatics Practices
Transmission media |
Medium |
| 2649 |
Which property distinguishes microwave transmission from radio wave transmission in general use? |
Computer Science/Informatics Practices
Transmission media |
Hard |
| 2650 |
Which generation of mobile technology was analog and supported only voice calls? |
Computer Science/Informatics Practices
Mobile telecommunication |
Easy |
| 2651 |
Text messaging (SMS) was introduced with which generation of mobile technology? |
Computer Science/Informatics Practices
Mobile telecommunication |
Easy |
| 2652 |
Which feature is especially associated with 5G compared with earlier generations? |
Computer Science/Informatics Practices
Mobile telecommunication |
Medium |
| 2653 |
Why are mobile phones also called cellular phones? |
Computer Science/Informatics Practices
Mobile telecommunication |
Medium |
| 2654 |
Which generation was the first to be based entirely on Internet Protocol (IP) for both voice and data, enabli… |
Computer Science/Informatics Practices
Mobile telecommunication |
Hard |
| 2655 |
Which protocol is used to send email messages to a mail server? |
Computer Science/Informatics Practices
Network protocols |
Easy |
| 2656 |
Which protocol is mainly used to upload and download files between computers? |
Computer Science/Informatics Practices
Network protocols |
Easy |
| 2657 |
A user reads email on a phone and a laptop and wants messages to stay on the server and appear the same on bo… |
Computer Science/Informatics Practices
Network protocols |
Medium |
| 2658 |
What is the main job of the Internet Protocol (IP)? |
Computer Science/Informatics Practices
Network protocols |
Medium |
| 2659 |
Which protocol is designed to connect two directly linked nodes, such as a home computer dialling an Internet… |
Computer Science/Informatics Practices
Network protocols |
Hard |
| 2660 |
Which malware spreads across a network by itself without attaching to any host file? |
Computer Science/Informatics Practices
Threats and prevention |
Easy |