Mobile technologies: GSM, CDMA, mobile IP, wireless networks, GPRS and basics of cloud computing and IoT (SaaS, PaaS, IaaS). - One Line Questions

1. Which generation of mobile technology introduced widespread mobile internet access and data services like GPRS? — 2G
2. What is the main difference between 2G and 3G technologies? — 3G supports higher data transfer rates and multimedia services
3. What is a 'smart device' in the context of IoT? — A device with embedded sensors, software, and connectivity to exchange data
4. An example of SaaS is: — Microsoft Office 365
5. Which wireless networking standard is commonly used for metropolitan area networks (MANs) and offers higher bandwidth over longer distances than Wi-Fi? — WiMAX (IEEE 802.16)
6. Which technology uses a Time Division Multiple Access (TDMA) approach for channel sharing in mobile networks? — GSM
7. CDMA stands for: — Code Division Multiple Access
8. What is the 'Internet of Things' (IoT) primarily concerned with? — Enabling everyday physical objects to connect to the internet and collect/exchange data
9. The ability of a cloud service to automatically increase or decrease its capacity based on demand is known as: — Elasticity
10. Which of the following is a characteristic of 'wireless networks' that differentiates them from wired networks? — Use of radio frequency or infrared signals
11. A key characteristic of CDMA technology is its ability to allow multiple users to share the same frequency channel simultaneously by using unique codes. This is known as: — Spread Spectrum
12. What does GPRS stand for? — General Packet Radio Service
13. What does GSM stand for in mobile communication? — Global System for Mobile Communications
14. What is the main difference between GSM and CDMA in terms of channel access? — GSM uses Time Division Multiple Access, while CDMA uses Code Division Multiple Access.
15. GPRS is an evolution of GSM that provides packet-switched data services. What is a key advantage of GPRS over earlier circuit-switched data services? — Always-on connectivity and more efficient use of network resources
16. Which of the following is a characteristic of 'wireless networks' that distinguishes them from wired networks? — Mobility and flexibility for users
17. Which cloud computing service model provides access to operating systems, development tools, and business analytics tools over the internet? — PaaS
18. Wi-Fi is a common type of wireless network technology. What IEEE standard primarily governs Wi-Fi? — IEEE 802.11
19. What is the primary benefit of cloud computing for businesses? — Reduced operational costs and enhanced scalability
20. In the context of mobile communication, what does CDMA achieve by spreading the signal over a wide frequency band? — Improved resistance to jamming and interference
21. What does IoT stand for? — Internet of Things
22. What is the main advantage of using Mobile IP over traditional IP addressing for mobile devices? — It allows mobile devices to maintain their IP address and connectivity while moving between networks.
23. Which of the following is a potential challenge for IoT? — Security and privacy concerns
24. In cloud computing, what is the primary responsibility of the customer in an IaaS model? — Managing the operating system, middleware, and applications.
25. An example of IaaS is: — Microsoft Azure Virtual Machines
26. What does the 'M' in GPRS stand for? — Mobile
27. Which of the following is NOT a characteristic of cloud computing? — Limited resource pooling
28. Which cloud computing model is often described as 'pay-as-you-go'? — Public cloud (IaaS, PaaS, SaaS)
29. What is a key feature of SaaS that allows users to access applications from any device with an internet connection? — Web-based access
30. In the context of IoT, what does 'edge computing' primarily involve? — Performing computation and data storage closer to the data source (IoT devices).
31. Which type of cloud deployment is a combination of on-premises infrastructure and public cloud services? — Hybrid Cloud
32. What is the term for the process by which a mobile device communicates with the network when it moves from one cell to another while maintaining the connection? — Handoff
33. Which of the following is a characteristic of wireless networks? — Uses radio waves or infrared signals for communication
34. Which cloud computing service model provides a platform for developing, running, and managing applications without the complexity of managing the underlying infrastructure? — PaaS
35. Which cloud computing service model offers the most control over the underlying infrastructure, such as servers, storage, and networking? — IaaS
36. An example of PaaS is: — Heroku
37. Which of the following is a common application of IoT? — Smart home automation
38. In the context of cloud computing, what does SaaS stand for? — Software as a Service
39. In the context of cloud computing, what does 'scalability' refer to? — The ability to adjust resources (like computing power or storage) up or down as needed
40. What is 'handoff' or 'handover' in cellular networks? — The seamless transfer of a mobile call or data session from one cell to another
41. What is a key characteristic of IoT devices? — They are designed to connect and exchange data with other devices and systems
42. In Mobile IP, what is the role of the 'foreign agent'? — To receive tunneled packets from the home agent and deliver them to the mobile node
43. What is the purpose of a 'router' in a wireless network? — To connect the wireless network to a wired network (like the internet)
44. In Mobile IP, what is the role of the 'home agent'? — To intercept packets destined for the mobile node and tunnel them to its current location
45. Mobile IP is a networking protocol that allows mobile nodes to roam across different IP networks while maintaining their original IP address. What is the primary goal of Mobile IP? — To ensure seamless connectivity and session continuity
46. What is the primary purpose of using unique codes in CDMA technology? — To allow multiple users to share the same frequency channel without interfering with each other.
47. In GSM, what is the primary function of the Base Station Subsystem (BSS)? — To handle radio transmission and reception within a cell
48. In IoT, what is a 'gateway' typically used for? — To connect IoT devices to the internet or another network, often performing protocol translation
49. What is the primary function of a 'cell' in a cellular mobile network? — To represent a geographical area covered by a base station
50. Bluetooth is a wireless technology standard used for exchanging data over short distances. What is the typical range of a Bluetooth connection? — Up to 10 meters
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