Mobile Computing quiz2

Which of the following is not an application of mobile computing?

• A. Mobile banking
• B. Mobile gaming
• C. Mobile photography
• D. Mobile education

What is the full form of CDMA?

• A. Code Division Multiple Access
• B. Cellular Division Multiple Access
• C. Carrier Division Mobile Access
• D. Cellular Division Mobile Access

Which generation of mobile communication technology introduced the concept of data transfer?

• A. 1G
• B. 2G
• C. 3G
• D. 4G

What is the purpose of multiplexing in mobile communication?

• A. To increase the number of available frequencies
• B. To reduce interference between different channels
• C. To decrease the signal-to-noise ratio
• D. To increase the coverage area of the network

What are the advantages and disadvantages of using spread spectrum in mobile communication?

• A. Advantages: increased security and resistance to interference. Disadvantages: increased complexity and cost
• B. Advantages: increased coverage and reduced power consumption. Disadvantages: decreased data transfer rate
• C. Advantages: increased bandwidth and data transfer rate. Disadvantages: decreased signal-to-noise ratio
• D. Advantages: increased reliability and ease of implementation. Disadvantages: increased interference and susceptibility to jamming

When was the first generation of mobile communication technology introduced?

• A. 1970s
• B. 1980s
• C. 1990s
• D. 2000s

Which technology was used in the first generation of mobile communication?

• A. Analog
• B. Digital
• C. Hybrid
• D. Satellite

What was the main limitation of the first generation of mobile communication technology?

• A. Limited coverage area
• B. Low data transfer rate
• C. Poor voice quality
• D. High power consumption

What was the primary use of mobile communication in the first generation?

• A. Voice calls only
• B. Text messaging only
• C. Voice and text messaging
• D. Data transfer

Which frequency band was used in the first generation of mobile communication?

• A. 900 MHz
• B. 1800 MHz
• C. 2100 MHz
• D. 2600 MHz