True or False (20 points)
-
The Internet of Things is the new name for the Internet. (wrong)
-
The Internet of Things needs to use identification/sensing technology to connect objects to the Internet, and radio frequency identification technology (RFID) is its only means. (wrong)
-
If people need to identify, monitor, track or manage an object, they can use IoT technology. (right)
-
The Internet cannot realize direct connection and information exchange between people and objects. (right)
-
RFID technology is an advanced non-contact identification technology developed based on radar technology. (right)
-
The information in the RFID tag is generated by the object itself to which it is attached. (Wrong) The RFID reader can only be used to read the information in the RFID tag. (wrong)
-
After adopting RFID technology in hospitals, patients only need to carry RFID cards when they see a doctor, which can avoid
repeated self-reporting by patients and repeated entry by doctors, and reduce inaccurate information and operational errors. (right) -
When people receive B-ultrasound examination in the hospital, the probe used by the doctor is a sensor.
(right) -
Sensors and sensor nodes are similar concepts. (wrong)
-
The difference between sensors and RFID technology is that the information of objects is generated in the physical world and is only transmitted to the information world through sensors. (wrong)
-
When using sensor nodes to configure wireless sensor networks, people do not need to configure them deliberately, and it can be done by utilizing the flexible characteristics of sensor node deployment. (right)
-
In terms of the convenience of setting up a network, wired communication technology is superior to wireless communication technology. (wrong)
-
Wireless local area network can not only meet the requirements of mobile and special application field network, but also cover areas that are difficult to reach by wired network. (right)
-
The token bus protocol in wired communication is also applicable to radio channels. (wrong)
-
Today, employees who are called into a room for a meeting each bring a laptop with an antenna attached to them, and their computers can be connected into a temporary network that ceases to exist after the meeting is over. (right)
-
In 2009, the National University of Defense Technology successfully developed my country's first petaflop supercomputing system "Tianhe-1", with a computing speed of 1206 trillion operations per second. After the United States, Japan, and the European Union, my country has become a country that has developed computers with a calculation speed of more than one petaflop. (right)
-
The amount of data in the Internet of Things may be less than in the Internet. (wrong)
-
The key to the success of the Internet of Things lies in the ability to provide targeted business solutions for different industries. (right)
-
Ubiquitous computing emphasizes embedding computers into the environment and daily tools, making the computer itself
"disappear" from people's sight, so as to draw people's attention back to the tasks to be completed. (right)