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

1. In the context of IoT, what does 'edge computing' primarily involve?
A) Processing data at centralized cloud servers.
B) Performing computation and data storage closer to the data source (IoT devices).
C) Only collecting raw data from IoT devices.
D) Managing the entire network from a single point.
2. What is the main difference between GSM and CDMA in terms of channel access?
A) GSM uses Code Division Multiple Access, while CDMA uses Time Division Multiple Access.
B) GSM uses Time Division Multiple Access, while CDMA uses Code Division Multiple Access.
C) Both use Frequency Division Multiple Access.
D) GSM uses Packet Switching, while CDMA uses Circuit Switching.
3. Which of the following is NOT a characteristic of cloud computing?
A) On-demand self-service
B) Broad network access
C) Limited resource pooling
D) Rapid elasticity
4. What is the primary purpose of using unique codes in CDMA technology?
A) To increase the bandwidth available to each user.
B) To allow multiple users to share the same frequency channel without interfering with each other.
C) To encrypt the transmitted data for security.
D) To reduce the power consumption of mobile devices.
5. Which type of cloud deployment is a combination of on-premises infrastructure and public cloud services?
A) Public Cloud
B) Private Cloud
C) Hybrid Cloud
D) Community Cloud
6. What is a key feature of SaaS that allows users to access applications from any device with an internet connection?
A) On-premises installation
B) Client-server architecture
C) Web-based access
D) Local data storage
7. In cloud computing, what is the primary responsibility of the customer in an IaaS model?
A) Managing the physical servers and networking hardware.
B) Managing the operating system, middleware, and applications.
C) Developing the cloud infrastructure.
D) Providing the electricity to the data center.
8. Which wireless networking standard is commonly used for metropolitan area networks (MANs) and offers higher bandwidth over longer distances than Wi-Fi?
A) Bluetooth
B) Zigbee
C) WiMAX (IEEE 802.16)
D) NFC
9. What does the 'M' in GPRS stand for?
A) Mobile
B) Multiplex
C) Medium
D) Managed
10. Which of the following is a characteristic of 'wireless networks' that differentiates them from wired networks?
A) Fixed physical connections
B) Use of radio frequency or infrared signals
C) Limited mobility for users
D) Higher bandwidth by default
11. What is the main advantage of using Mobile IP over traditional IP addressing for mobile devices?
A) It eliminates the need for a home network.
B) It allows mobile devices to maintain their IP address and connectivity while moving between networks.
C) It significantly increases the speed of data transfer.
D) It simplifies network configuration for all devices.
12. In IoT, what is a 'gateway' typically used for?
A) To provide power to IoT devices
B) To connect IoT devices to the internet or another network, often performing protocol translation
C) To store all the data generated by IoT devices locally
D) To encrypt the data transmitted by IoT devices
13. Which cloud computing service model provides a platform for developing, running, and managing applications without the complexity of managing the underlying infrastructure?
A) SaaS
B) PaaS
C) IaaS
D) DaaS
14. The ability of a cloud service to automatically increase or decrease its capacity based on demand is known as:
A) Elasticity
B) Portability
C) Interoperability
D) Reliability
15. 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?
A) Registration
B) Authentication
C) Handoff
D) Paging
16. Which wireless technology is designed for short-range communication, often used for connecting peripherals like headphones and keyboards to a computer?
A) Wi-Fi
B) LTE
C) Bluetooth
D) NFC
17. In GSM, what is the primary function of the Base Station Subsystem (BSS)?
A) To manage billing and user profiles
B) To control switching between different networks
C) To handle radio transmission and reception within a cell
D) To provide internet connectivity
18. Which of the following is a potential challenge for IoT?
A) Lack of connectivity options
B) Security and privacy concerns
C) Limited data generation
D) High energy efficiency
19. What is a 'smart device' in the context of IoT?
A) A device that is always offline
B) A device with embedded sensors, software, and connectivity to exchange data
C) A device that only performs one specific function manually
D) A device that requires a physical connection for all operations
20. What is the 'Internet of Things' (IoT) primarily concerned with?
A) Connecting traditional computers to the internet
B) Enabling everyday physical objects to connect to the internet and collect/exchange data
C) Developing faster internet protocols
D) Providing cloud storage solutions
21. Which cloud computing model is often described as 'pay-as-you-go'?
A) On-premises deployment
B) Private cloud
C) Public cloud (IaaS, PaaS, SaaS)
D) Hybrid cloud
22. In the context of cloud computing, what does 'scalability' refer to?
A) The ability to connect more devices
B) The ability to adjust resources (like computing power or storage) up or down as needed
C) The security measures implemented by the cloud provider
D) The speed at which data can be retrieved
23. What is the purpose of a 'router' in a wireless network?
A) To amplify the wireless signal
B) To connect the wireless network to a wired network (like the internet)
C) To manage user authentication
D) To encrypt wireless traffic
24. Which of the following is a characteristic of 'wireless networks' that distinguishes them from wired networks?
A) Higher security by default
B) Use of physical cables for data transmission
C) Mobility and flexibility for users
D) Slower data transfer speeds
25. What is the main difference between 2G and 3G technologies?
A) 3G supports higher data transfer rates and multimedia services
B) 2G uses CDMA while 3G uses GSM
C) 3G has a shorter range than 2G
D) 2G offers better voice quality than 3G
26. Which generation of mobile technology introduced widespread mobile internet access and data services like GPRS?
A) 1G
B) 2G
C) 3G
D) 4G
27. What is 'handoff' or 'handover' in cellular networks?
A) The process of a mobile device connecting to a new network
B) The seamless transfer of a mobile call or data session from one cell to another
C) The initial connection establishment between a mobile device and a base station
D) The process of switching between voice and data modes
28. What is the primary function of a 'cell' in a cellular mobile network?
A) To store user data
B) To represent a geographical area covered by a base station
C) To manage billing information
D) To encrypt communication signals
29. In the context of mobile communication, what does CDMA achieve by spreading the signal over a wide frequency band?
A) Increased signal interference
B) Improved resistance to jamming and interference
C) Reduced transmission range
D) Lower data rates
30. Which of the following is a common application of IoT?
A) Smart home automation
B) Traditional landline telephones
C) Manual inventory management
D) Analogue radio broadcasting
31. What is a key characteristic of IoT devices?
A) They are always powered off
B) They are designed to connect and exchange data with other devices and systems
C) They require manual data input for all operations
D) They have extremely limited processing power
32. What is the primary benefit of cloud computing for businesses?
A) Increased hardware maintenance costs
B) Reduced operational costs and enhanced scalability
C) Limited access to data
D) Dependence on a single vendor
33. An example of IaaS is:
A) Microsoft Azure Virtual Machines
B) Google Workspace
C) Slack
D) Zoom
34. An example of PaaS is:
A) Salesforce
B) Dropbox
C) Heroku
D) Gmail
35. An example of SaaS is:
A) Amazon EC2
B) Google App Engine
C) Microsoft Office 365
D) Docker
36. Which cloud computing service model offers the most control over the underlying infrastructure, such as servers, storage, and networking?
A) SaaS
B) PaaS
C) IaaS
D) Serverless
37. Which cloud computing service model provides access to operating systems, development tools, and business analytics tools over the internet?
A) IaaS
B) PaaS
C) SaaS
D) FaaS
38. In the context of cloud computing, what does SaaS stand for?
A) System as a Service
B) Software as a Service
C) Storage as a Service
D) Server as a Service
39. What does IoT stand for?
A) Internet of Things
B) Integrated Operational Technology
C) Internal Object Transfer
D) Information Overload Technology
40. Bluetooth is a wireless technology standard used for exchanging data over short distances. What is the typical range of a Bluetooth connection?
A) Up to 10 meters
B) Up to 100 meters
C) Up to 1 kilometer
D) Up to 10 kilometers
41. Wi-Fi is a common type of wireless network technology. What IEEE standard primarily governs Wi-Fi?
A) IEEE 802.3
B) IEEE 802.11
C) IEEE 802.15
D) IEEE 802.16
42. Which of the following is a characteristic of wireless networks?
A) Requires physical cables for data transmission
B) Uses radio waves or infrared signals for communication
C) Limited to point-to-point connections
D) Operates only in licensed frequency bands
43. 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?
A) Higher latency
B) Always-on connectivity and more efficient use of network resources
C) Lower data transfer rates
D) Simultaneous voice and data transmission on the same channel
44. What does GPRS stand for?
A) General Packet Radio Service
B) Global Packet Radio System
C) General Protocol for Radio Services
D) Global Protocol for Real-time Services
45. In Mobile IP, what is the role of the 'foreign agent'?
A) To act as the mobile node's fixed network gateway
B) To assign a temporary IP address to the mobile node
C) To receive tunneled packets from the home agent and deliver them to the mobile node
D) To maintain a database of mobile node locations
46. In Mobile IP, what is the role of the 'home agent'?
A) To assign a new IP address to the mobile node
B) To intercept packets destined for the mobile node and tunnel them to its current location
C) To provide wireless access points
D) To manage authentication of mobile devices
47. 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?
A) To improve data transfer speeds
B) To ensure seamless connectivity and session continuity
C) To reduce network latency
D) To enhance network security
48. 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:
A) Frequency Hopping
B) Spread Spectrum
C) Time Slicing
D) Orthogonal Frequency Division Multiplexing
49. CDMA stands for:
A) Code Division Multiple Access
B) Carrier Division Multiple Access
C) Channel Division Multiple Access
D) Centralized Division Multiple Access
50. Which technology uses a Time Division Multiple Access (TDMA) approach for channel sharing in mobile networks?
A) CDMA
B) GSM
C) WLAN
D) Bluetooth
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