Mobile Computing1

• Mobile Computing
• Tertiary Education

What are the frequency bands in which Wi-Fi networks usually operate and what is the communication protocol followed by these networks? Choose one that is wrong.

1. 5GHz/802.11a
2. 1800MHz/801.11aj
3. 2.4GHz/802.11b
4. Hotspot 2.0/802.11u

Select ONE that is incorrect describing roaming capability of mobile network.

1. Movement of the device can be seamlessly track and continuous security provided.
2. It refers to the mobile phone being used outside of the range of its home network.
3. Mobile devices can roam in a local network only.
4. ability to connect to another available cell network seamlessly.

Select ONE that correctly defines the term Mobile Computing.

1. Computers or devices that are mobile.
2. Enable people to carry devices anytime and anywhere they go.
3. Computers that have Internet connections.
4. The user will be able to access data and information from any devices in any network while on the move.

The basic concept of Wireless Communications involves the following two devices. It requires receivers and _________.

1. Transmitters
2. Bluetooth
3. Access Points
4. Radiators

Select ONE device that does not utilize radio frequencies to transmit information.

1. Computer Monitor
2. Television
3. AM/FM Radio
4. Microwave Oven

Types of frequencies that require regulatory approval before deployment and consumers have to pay to use them. Select ONE that is correct.

1. Free WiFi
2. Licensed Frequencies
3. Unlicensed Frequencies
4. (Industrial, scientific and medical (ISM) radio bands)

What do you know about the intersection of these two wireless waves signal propagation?

Referring to the diagram shown in the previous slide. Select ONE that is correct.

1. Intersection
2. Interference
3. Interrelated
4. Intercross

It is described as providing low delay, low bandwidth variability. Select ONE of the followings that matches the above description.

1. Wireless Network
2. 3G Network
3. Wired Network
4. Bluetooth

Do you know?

Who is this person?

Who is the inventor of the first practical telephone used across the globe?

1. Alexander Grand Bell
2. Alexander Grey Bell
3. Alexander Graham Bell
4. Alexander Bell