MCQOPTIONS
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MCQOPTIONS
This section includes 112 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Networks Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When a frame is coming from an AP and going to a station, the address flag is _______. |
| A. | 00 |
| B. | 01 |
| C. | 10 |
| D. | 11 |
| Answer» C. 10 | |
| 2. |
The access method used in the DCF sublayer is _______ |
| A. | CSMA/CD |
| B. | CSMA/CA |
| C. | ALOHA |
| D. | None of the above |
| Answer» C. ALOHA | |
| 3. |
Communication between two stations in two different BSSs usually occur in IEEE 802.11 via two ________ |
| A. | BSSs |
| B. | APs |
| C. | ESSs |
| D. | FCC |
| Answer» C. ESSs | |
| 4. |
The standard 802.11g uses |
| A. | DSSS |
| B. | OFDM |
| C. | FHSS |
| D. | None of the above |
| Answer» C. FHSS | |
| 5. |
The standard IEEE 802.11s uses IEEE 802 standard |
| A. | OFDM |
| B. | DSSS |
| C. | FHSS |
| D. | DSDM |
| Answer» B. DSSS | |
| 6. |
A station with __________mobility can move from one ESS to another in IEEE 802.11 . |
| A. | ESS-transition |
| B. | BSS-transition |
| C. | No-transition |
| D. | Free-transition |
| Answer» B. BSS-transition | |
| 7. |
In IEEE 802.11, the MAC layer frame has ______ fields. |
| A. | Four |
| B. | Five |
| C. | Six |
| D. | None of the above |
| Answer» E. | |
| 8. |
In IEEE 802.11, a station with _____mobility is either stationary or moving only inside a BSS |
| A. | ESS-transition |
| B. | No-transition |
| C. | BSS-transition |
| D. | None of the above |
| Answer» C. BSS-transition | |
| 9. |
What BSS is called without AP? |
| A. | An infrastructure network |
| B. | An ad hoc network |
| C. | Both a and b |
| D. | None of the above |
| Answer» C. Both a and b | |
| 10. |
In IEEE 802.11, the access method used in the PCF sublayer is ______. |
| A. | Contention |
| B. | Controlled |
| C. | Polling |
| D. | None of the above |
| Answer» D. None of the above | |
| 11. |
What does GSM stands for? |
| A. | Grade system mobile |
| B. | Global communication for mobile communication |
| C. | Global signal mechanism |
| D. | None of the above |
| Answer» C. Global signal mechanism | |
| 12. |
In IEEE 802.11, a BSS in AP is sometimes refers to as? |
| A. | An infrastructure network |
| B. | An ad hoc architecture |
| C. | Both a and b |
| D. | None of the above |
| Answer» B. An ad hoc architecture | |
| 13. |
The range of Bluetooth devices are |
| A. | Low power |
| B. | High power |
| C. | No power |
| D. | Static power |
| Answer» B. High power | |
| 14. |
Logical Link Control and Adaptation Protocol (L2CAP) divides the large packets into |
| A. | Frames |
| B. | Data |
| C. | Segments |
| D. | Signals |
| Answer» D. Signals | |
| 15. |
Modern Bluetooth is the implementation of protocol, defined by |
| A. | IEEE 802.11 standard |
| B. | IEEE 802.12 standard |
| C. | IEEE 802.14 standard |
| D. | IEEE 802.15 standard |
| Answer» E. | |
| 16. |
A basic service set without an access point is a stand alone network called |
| A. | Cellular Network |
| B. | Point to point network |
| C. | Adhoc network |
| D. | Infrastructure network |
| Answer» D. Infrastructure network | |
| 17. |
The term that refers to the time in which the Request to Send (RTS) and Clear to Send (CTS) control frames are in transition is called |
| A. | Hand shaking period |
| B. | Back-off time |
| C. | Frame exchange timeline |
| D. | Timeline |
| Answer» B. Back-off time | |
| 18. |
The term that is used to show the exchange of data and control frames in time is called |
| A. | Process Flow Chart |
| B. | Distributed Coordination Function |
| C. | Frame exchange timeline |
| D. | Point coordination function |
| Answer» D. Point coordination function | |
| 19. |
The common data rates of IEEE 802.11 OFDM are |
| A. | 18 Mbps |
| B. | 20 Mbps |
| C. | 50 Mbps |
| D. | 54 Mbps |
| Answer» B. 20 Mbps | |
| 20. |
The payload subfield of baseband layer frame can be up to 0 to 2740 Bits |
| A. | Small |
| B. | Short |
| C. | Cubic |
| D. | Long |
| Answer» E. | |
| 21. |
IEEE 802.11 doesn |
| A. | Discrete |
| B. | Continuous |
| C. | Perpendicular |
| D. | Vertical |
| Answer» C. Perpendicular | |
| 22. |
A Bluetooth LAN by nature, cannot be |
| A. | Small |
| B. | Large |
| C. | Thin |
| D. | Thick |
| Answer» C. Thin | |
| 23. |
BSS stands for |
| A. | Basic Signal Set |
| B. | Basic Service Set |
| C. | Beacon Service Set |
| D. | Basic Strong Set |
| Answer» C. Beacon Service Set | |
| 24. |
The frames that are used for the initial communication between stations and access points are called |
| A. | Control frames |
| B. | Data frames |
| C. | Beacon Frame |
| D. | Management Frames |
| Answer» E. | |
| 25. |
A piconet network can have up to |
| A. | 9 Station |
| B. | 8 Station |
| C. | 7 Station |
| D. | 6 Station |
| Answer» C. 7 Station | |
| 26. |
The maximum size of payload field in the baseband layer is |
| A. | 2244 Bits |
| B. | 2664 Bits |
| C. | 2774 Bits |
| D. | 2884 Bits |
| Answer» D. 2884 Bits | |
| 27. |
Multiple piconets form a network called a |
| A. | Small area |
| B. | Scatter net |
| C. | Network allocation vector |
| D. | Gadgets |
| Answer» C. Network allocation vector | |
| 28. |
A small net can have only one primary |
| A. | Frame |
| B. | Data |
| C. | Signal |
| D. | Station |
| Answer» E. | |
| 29. |
Bluetooth technology was originally started as a project by the |
| A. | Apple Company |
| B. | Dell Company |
| C. | Ericsson Company |
| D. | Samsung Company |
| Answer» D. Samsung Company | |
| 30. |
Bluetooth is a wireless |
| A. | WAN technology |
| B. | MAN technology |
| C. | LAN technology |
| D. | All of the above |
| Answer» D. All of the above | |
| 31. |
The 4-bit type subfield of baseband layer frame defines the type of data coming from the |
| A. | Lower Layer |
| B. | Upper layer |
| C. | Data link layer |
| D. | Media Access Control layer |
| Answer» C. Data link layer | |
| 32. |
Orthogonal Frequency Division Multiplexing (OFDM) is similar to |
| A. | TDM |
| B. | FSD |
| C. | BPS |
| D. | FDM |
| Answer» E. | |
| 33. |
The modulation technique in IEEE 802.11 infrared is |
| A. | PPM |
| B. | PSK |
| C. | FSK |
| D. | QAM |
| Answer» B. PSK | |
| 34. |
When the station accesses the system and send a Request to Send (RTS) frame then other stations start their |
| A. | Point Coordination Function |
| B. | Network allocation vector |
| C. | Distributed Coordination function |
| D. | Clear to send |
| Answer» C. Distributed Coordination function | |
| 35. |
When piconet networks are combined, then it forms a |
| A. | Scatternet |
| B. | Small Net |
| C. | Large Net |
| D. | Narrow Net |
| Answer» B. Small Net | |
| 36. |
Distributed Coordination Function (DCF) is having lower priority over |
| A. | PCF |
| B. | RTS |
| C. | CTS |
| D. | PIFS |
| Answer» B. RTS | |
| 37. |
The IEEE technique, that describes the high rate direct sequence spread spectrum method for signal generation is called |
| A. | IEEE 802.11 infrared |
| B. | IEEE 802.11b DSSS |
| C. | IEEE 802.11g OFDM |
| D. | IEEE 802.11 DSSS |
| Answer» C. IEEE 802.11g OFDM | |
| 38. |
Bluetooth devices divides the total band rate into |
| A. | 80 Channels |
| B. | 75 Channels |
| C. | 79 Channels |
| D. | 99 Channels |
| Answer» D. 99 Channels | |
| 39. |
The primary devices in single-secondary uses the even numbered slots which are |
| A. | 6,8,10,12 |
| B. | 4,6,8,10 |
| C. | 0,2,4,6 |
| D. | 8,10, 12, |
| Answer» D. 8,10, 12, | |
| 40. |
The FCS field of Media Access Control frame contains CRC-32 |
| A. | Error correction sequence |
| B. | Error detection sequence |
| C. | Flow control sequence |
| D. | Error control sequence |
| Answer» C. Flow control sequence | |
| 41. |
IEEE 802.11g is backward compatible with |
| A. | IEEE 802.11a |
| B. | IEEE 802.11b |
| C. | 802.11 FSFH |
| D. | IEEE 802.12g |
| Answer» C. 802.11 FSFH | |
| 42. |
The basic service sets are connected through a distribution system in |
| A. | Basic service set |
| B. | Extended service set |
| C. | Cellular Set |
| D. | None of the above |
| Answer» C. Cellular Set | |
| 43. |
IEEE 802.11 Infrared uses the Infrared light in the range of |
| A. | 800 to 950 |
| B. | 750 to 850 |
| C. | 650 to 750 |
| D. | 550 to 650 |
| Answer» B. 750 to 850 | |
| 44. |
If the value of sub field type is 01 in frame control then it contains the information of |
| A. | Management |
| B. | Data |
| C. | Control |
| D. | Reserve |
| Answer» D. Reserve | |
| 45. |
The wireless environment is very |
| A. | Smooth |
| B. | Efficient |
| C. | Both a and c |
| D. | Noisy |
| Answer» E. | |
| 46. |
In collision during handshaking, sender assumes that the collision in frames, is because it has not received a |
| A. | SIFS |
| B. | DIFS |
| C. | RTS |
| D. | CTS |
| Answer» E. | |
| 47. |
Access Code of Bluetooth frame is of |
| A. | 54 Bits |
| B. | 64 Bits |
| C. | 72 Bits |
| D. | 84 Bits |
| Answer» D. 84 Bits | |
| 48. |
The bandwidth of Bluetooth devices are |
| A. | 4.2 GHz |
| B. | 3.2 Ghz |
| C. | 2.4 GHz |
| D. | 2.3 GHz |
| Answer» D. 2.3 GHz | |
| 49. |
When basic service points are connected, the station within reach can communicate without the use of an |
| A. | Adhoc network |
| B. | Infrastructure network |
| C. | Stationary station |
| D. | Access point |
| Answer» E. | |
| 50. |
IEEE 802.11 Frequency-Hopping Spread Spectrum (FHSS) uses the Band rate of |
| A. | 2.4 GHz |
| B. | 5.75 GHz |
| C. | 5.725 GHz |
| D. | 2.9 GHz |
| Answer» B. 5.75 GHz | |