MCQOPTIONS
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MCQOPTIONS
This section includes 22 Mcqs, each offering curated multiple-choice questions to sharpen your Wireless Mobile Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Capacity of a cellular system is directly proportional to __________ |
| A. | Number of cells |
| B. | Number of times a cluster is replicated |
| C. | Number of Base stations |
| D. | Number of users |
| Answer» C. Number of Base stations | |
| 2. |
What is a cluster in a cellular system? |
| A. | Group of frequencies |
| B. | Group of cells |
| C. | Group of subscribers |
| D. | Group of mobile systems |
| Answer» C. Group of subscribers | |
| 3. |
For a cellular system, if there are N cells and each cell is allocated k channel. What is the total number of available radio channels, S? |
| A. | S=k*N |
| B. | S=k/N |
| C. | S=N/k |
| D. | S=kN |
| Answer» B. S=k/N | |
| 4. |
Which type of antenna is used for edge excited cells? |
| A. | Omnidirectional antenna |
| B. | Grid antenna |
| C. | Sectored directional antenna |
| D. | Dipole antenna |
| Answer» D. Dipole antenna | |
| 5. |
Which type of antenna is used for center excited cells? |
| A. | Dipole antenna |
| B. | Grid antenna |
| C. | Sectored antenna |
| D. | Omnidirectional antenna |
| Answer» E. | |
| 6. |
Actual radio coverage of a cell is called __________ |
| A. | Fingerprint |
| B. | Footprint |
| C. | Imprint |
| D. | Matrix |
| Answer» C. Imprint | |
| 7. |
Cellular concept replaces many low power transmitters to a single high power transmitter. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
WHICH_TYPE_OF_ANTENNA_IS_USED_FOR_CENTER_EXCITED_CELLS??$ |
| A. | Dipole antenna |
| B. | Grid antenna |
| C. | Sectored antenna |
| D. | Omnidirectional antenna |
| Answer» E. | |
| 9. |
For a cellular system, if there are N cells and each cell is allocated k channel. What is the total number of available radio channels, S?$ |
| A. | S=k*N |
| B. | S=k/N |
| C. | S=N/k |
| D. | S=k<sup>N</sup> |
| Answer» B. S=k/N | |
| 10. |
Which_type_of_antenna_is_used_for_edge_excited_cells?$ |
| A. | Omnidirectional antenna |
| B. | Grid antenna |
| C. | Sectored directional antenna |
| D. | Dipole antenna |
| Answer» D. Dipole antenna | |
| 11. |
A spectrum of 30 MHz is allocated to a cellular system which uses two 25 KHz simplex channels to provide full duplex voice channels. What is the number of channels available per cell for 4 cell reuse factor? |
| A. | 150 channels |
| B. | 600 channels |
| C. | 50 channels |
| D. | 85 channels |
| Answer» B. 600 channels | |
| 12. |
Capacity of a cellular system is directly proportional to _____ |
| A. | Number of cells |
| B. | Number of times a cluster is replicated |
| C. | Number of Base stations |
| D. | Number of users |
| Answer» C. Number of Base stations | |
| 13. |
What is a frequency reuse factor for N number of cells in a system? |
| A. | N |
| B. | N<sup>2</sup> |
| C. | 2*N |
| D. | 1/N |
| Answer» E. | |
| 14. |
What_is_a_cluster_in_a_cellular_system? |
| A. | Group of frequencies |
| B. | Group of cells |
| C. | Group of subscribers |
| D. | Group of mobile systems |
| Answer» C. Group of subscribers | |
| 15. |
What is the main reason to adopt hexagon shape in comparison to square and triangle? |
| A. | Largest area |
| B. | Simple design |
| C. | Small area |
| D. | Single directional |
| Answer» B. Simple design | |
| 16. |
Why the shape of cell is not circle? |
| A. | Omni directionality |
| B. | Small area |
| C. | Overlapping regions or gaps are left |
| D. | Complex design |
| Answer» D. Complex design | |
| 17. |
Actual radio coverage of a cell is called _____ |
| A. | Fingerprint |
| B. | Footprint |
| C. | Imprint |
| D. | Matrix |
| Answer» C. Imprint | |
| 18. |
Which of the following is a universally adopted shape of cell? |
| A. | Square |
| B. | Circle |
| C. | Triangle |
| D. | Hexagon |
| Answer» E. | |
| 19. |
What is frequency reuse? |
| A. | Process of selecting and allocating channels |
| B. | Process of selection of mobile users |
| C. | Process of selecting frequency of mobile equipment |
| D. | Process of selection of number of cells |
| Answer» B. Process of selection of mobile users | |
| 20. |
What is a cell in cellular system? |
| A. | A group of cells |
| B. | A group of subscribers |
| C. | A small geographical area |
| D. | A large group of mobile systems |
| Answer» B. A group of subscribers | |
| 21. |
Why neighbouring stations are assigned different group of channels in cellular system? |
| A. | To minimize interference |
| B. | To minimize area |
| C. | To maximize throughput |
| D. | To maximize capacity of each cell |
| Answer» B. To minimize area | |
| 22. |
Cellular concept replaces many low power transmitters to a single high power transmitter. (True or False) |
| A. | True |
| B. | False |
| Answer» C. | |