Cellular Network Basics

Description: Test your knowledge on the fundamentals of cellular networks, including components, technologies, and concepts.
Number of Questions: 15
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Tags: cellular networks mobile communications wireless technology
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What is the primary purpose of a cellular network?

  1. To provide wireless communication between devices

  2. To connect devices to the internet

  3. To transmit data over long distances

  4. To enable voice calls between mobile devices


Correct Option: A
Explanation:

A cellular network is designed to facilitate wireless communication between devices, allowing them to exchange data, voice, and other information.

Which of the following is a key component of a cellular network?

  1. Cell towers

  2. Mobile devices

  3. Base stations

  4. All of the above


Correct Option: D
Explanation:

A cellular network consists of various components, including cell towers, mobile devices, base stations, and other infrastructure, all working together to provide wireless connectivity.

What is the term used to describe the geographical area covered by a single cell tower?

  1. Cell

  2. Sector

  3. Coverage area

  4. Service area


Correct Option: A
Explanation:

In cellular networks, the geographical area covered by a single cell tower is referred to as a cell.

Which technology is commonly used to divide a cell into sectors, allowing for increased capacity?

  1. Frequency reuse

  2. Sectorization

  3. Multiple-input multiple-output (MIMO)

  4. Beamforming


Correct Option: B
Explanation:

Sectorization is a technique used to divide a cell into sectors, each served by a dedicated antenna, to increase capacity and improve signal quality.

What is the process of assigning channels to mobile devices in a cellular network called?

  1. Channel allocation

  2. Frequency hopping

  3. Spread spectrum

  4. Code division multiple access (CDMA)


Correct Option: A
Explanation:

Channel allocation is the process of assigning channels to mobile devices in a cellular network to ensure efficient use of the available spectrum.

Which technology allows multiple users to share the same frequency channel simultaneously?

  1. Frequency division multiple access (FDMA)

  2. Time division multiple access (TDMA)

  3. Code division multiple access (CDMA)

  4. Orthogonal frequency-division multiplexing (OFDM)


Correct Option: C
Explanation:

Code division multiple access (CDMA) is a technology that allows multiple users to share the same frequency channel simultaneously by assigning unique codes to each user.

What is the term used to describe the handover of a mobile device from one cell tower to another?

  1. Handoff

  2. Roaming

  3. Call forwarding

  4. Network switching


Correct Option: A
Explanation:

Handoff is the process of transferring a mobile device from one cell tower to another during a call or data session to maintain a continuous connection.

Which technology is used to improve signal quality and capacity in cellular networks by using multiple antennas?

  1. MIMO (Multiple-input multiple-output)

  2. Beamforming

  3. Diversity

  4. Spatial multiplexing


Correct Option: A
Explanation:

MIMO (Multiple-input multiple-output) is a technology that uses multiple antennas at both the transmitter and receiver to improve signal quality and capacity in cellular networks.

What is the term used to describe the maximum data rate that can be achieved in a cellular network?

  1. Peak data rate

  2. Throughput

  3. Bandwidth

  4. Latency


Correct Option: A
Explanation:

Peak data rate refers to the maximum data transfer rate that can be achieved in a cellular network under ideal conditions.

Which generation of cellular technology introduced high-speed data services and improved multimedia capabilities?

  1. 1G

  2. 2G

  3. 3G

  4. 4G


Correct Option: C
Explanation:

3G (third-generation) cellular technology brought high-speed data services and improved multimedia capabilities to mobile devices.

What is the primary difference between GSM and CDMA cellular technologies?

  1. GSM uses FDMA, while CDMA uses TDMA

  2. GSM uses TDMA, while CDMA uses FDMA

  3. GSM uses CDMA, while CDMA uses FDMA

  4. GSM uses FDMA, while CDMA uses CDMA


Correct Option:
Explanation:

GSM (Global System for Mobile Communications) uses TDMA (Time Division Multiple Access), while CDMA (Code Division Multiple Access) uses CDMA (Code Division Multiple Access) as the underlying multiple access technology.

Which cellular technology introduced LTE (Long-Term Evolution), enabling significantly faster data speeds?

  1. 3G

  2. 4G

  3. 5G

  4. 6G


Correct Option: B
Explanation:

4G (fourth-generation) cellular technology introduced LTE (Long-Term Evolution), which significantly improved data speeds and overall network performance.

What is the main advantage of OFDM (Orthogonal Frequency-Division Multiplexing) in cellular networks?

  1. Increased bandwidth

  2. Reduced interference

  3. Improved signal quality

  4. All of the above


Correct Option: D
Explanation:

OFDM (Orthogonal Frequency-Division Multiplexing) offers increased bandwidth, reduced interference, and improved signal quality in cellular networks.

Which cellular technology is designed to support ultra-high data rates, low latency, and massive connectivity?

  1. 3G

  2. 4G

  3. 5G

  4. 6G


Correct Option: C
Explanation:

5G (fifth-generation) cellular technology is designed to provide ultra-high data rates, low latency, and massive connectivity for a wide range of applications.

What is the primary goal of network slicing in cellular networks?

  1. To improve network security

  2. To enhance network performance

  3. To provide customized network services

  4. To reduce network costs


Correct Option: C
Explanation:

Network slicing in cellular networks aims to provide customized network services tailored to specific applications or user requirements.

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