MCQOPTIONS
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MCQOPTIONS
This section includes 85 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.
| 51. |
What is the type of network in which the routers themselves are mobile? |
| A. | Wide Area Network |
| B. | Mobile Ad hoc Network |
| C. | Mobile Network |
| D. | Local Area Network |
| Answer» C. Mobile Network | |
| 52. |
IEEE 802.11g, has a data rate of _____Mbps. |
| A. | 1 |
| B. | 2 |
| C. | 11 |
| D. | 22 |
| Answer» E. | |
| 53. |
The IEEE 802.11 wireless LANs use ________ types of frames. |
| A. | Four |
| B. | Five |
| C. | Six |
| D. | None of the above |
| Answer» E. | |
| 54. |
A Bluetooth network is called a ________. |
| A. | Piconet |
| B. | Scatternet |
| C. | Bluenet |
| D. | None of the above |
| Answer» B. Scatternet | |
| 55. |
In Bluetooth, the current data rate is ____Mbps. |
| A. | None of the above |
| B. | 2 |
| C. | 5 |
| D. | 11 |
| Answer» B. 2 | |
| 56. |
In Bluetooth, the _____layer is roughly equivalent to the MAC sublayer in LANs. |
| A. | Radio |
| B. | Baseband |
| C. | L2CAP |
| D. | None of the above |
| Answer» C. L2CAP | |
| 57. |
In Bluetooth, the L2CAP sublayer, is roughly equivalent to the LLC sublayer in LANs. |
| A. | Radio |
| B. | Baseband |
| C. | L2CAP |
| D. | None of the above |
| Answer» D. None of the above | |
| 58. |
The access method in Bluetooth is ________. |
| A. | FDMA |
| B. | TDD-TDMA |
| C. | CDMA |
| D. | None of the above |
| Answer» C. CDMA | |
| 59. |
In Bluetooth, the _____ link is used when avoiding latency (delay in data delivery) is more important than integrity (error-free delivery). |
| A. | SCO |
| B. | ACL |
| C. | ACO |
| D. | SCL |
| Answer» B. ACL | |
| 60. |
In Bluetooth, the _____ link is used when data integrity is more important than avoiding latency. |
| A. | SCO |
| B. | ACL |
| C. | ACO |
| D. | SCL |
| Answer» C. ACO | |
| 61. |
Bluetooth uses ______method in the physical layer to avoid interference from other devices or other networks. |
| A. | DSSS |
| B. | FHSS |
| C. | FDMA |
| D. | None of the above |
| Answer» C. FDMA | |
| 62. |
Cellular radio has another popular names as |
| A. | Cellular mobile |
| B. | Cellular phone |
| C. | Both a & b |
| D. | None of these |
| Answer» D. None of these | |
| 63. |
The disadvantages of mobile communication are |
| A. | Fixed network needed for the base stations |
| B. | Handover(changing from one cell to another) necessary |
| C. | Handover(changing from one cell to another) necessary |
| D. | All of these |
| Answer» E. | |
| 64. |
ETSI stands for |
| A. | European Telephone Standards Institute |
| B. | European Telecommunication Systems Institute |
| C. | European Telecom Standards Institute |
| D. | European Telecommunication Standards Institute |
| Answer» E. | |
| 65. |
GSM (Global System for Mobile Communication) is a _______ digital mobile telephones standard using a combination Time Division Multiple Access (TDMA) and FDMA (Frequency Division Multiple Access). |
| A. | First generation |
| B. | Second generation |
| C. | Third generation |
| D. | None of these |
| Answer» C. Third generation | |
| 66. |
As we go from long-wave radio towards visible light, the waves behave more and more like .. and less and less like |
| A. | Radio, light |
| B. | Light, radio |
| C. | Radio , micro wave |
| D. | Micro wave, light |
| Answer» C. Radio , micro wave | |
| 67. |
If either of the communicating device can ask for disconnection by sending DISCONNECT REQUEST TPDU to the other, and immediately disconnect without waiting for acknowledgement is called . |
| A. | Graceful disconnection |
| B. | Abrupt disconnection |
| C. | Greedy disconnection |
| D. | Random disconnection |
| Answer» C. Greedy disconnection | |
| 68. |
Which IEEE 802 standard does not provide for a collision-free protocol? |
| A. | 802.2 |
| B. | 802.5 |
| C. | 802.4 |
| D. | None of these |
| Answer» B. 802.5 | |
| 69. |
In switched 802.3 LANS, each card forms its own . independents of the others. |
| A. | Domain |
| B. | Area |
| C. | Collision Area |
| D. | Collision domain |
| Answer» E. | |
| 70. |
802.3 base band systems use encoding. |
| A. | Manchester |
| B. | RZ |
| C. | NRZ |
| D. | RZ or NRZ |
| Answer» B. RZ | |
| 71. |
In 802.3, each frame starts with a . of 7 bytes. |
| A. | SD |
| B. | Preamble |
| C. | ED |
| D. | Pad |
| Answer» C. ED | |
| 72. |
In 802.3, the high order bit of the destination address is a 0 for .. addresses. |
| A. | Ordinary |
| B. | Group |
| C. | Broadcast |
| D. | Unicast |
| Answer» B. Group | |
| 73. |
In 802.3, the address consisting of all 1 bits is reserved for .. |
| A. | Unicast |
| B. | Multicast |
| C. | Broadcast |
| D. | Ordinary |
| Answer» D. Ordinary | |
| 74. |
The .. standard describes the upper part of the data link layer. |
| A. | IEEE 802.2 |
| B. | IEEE 802.3 |
| C. | IEEE 802.4 |
| D. | IEEE 802.5 |
| Answer» B. IEEE 802.3 | |
| 75. |
Each station can send data without the need to since line is |
| A. | Full duplex Ethernet |
| B. | Half duplex Ethernet |
| C. | Both |
| D. | None |
| Answer» B. Half duplex Ethernet | |
| 76. |
The addressing mechanism of the Bluetooth can include up to |
| A. | 2 Addresses |
| B. | 4 Addresses |
| C. | 6 Addresses |
| D. | 8 Addresses |
| Answer» C. 6 Addresses | |
| 77. |
In Bluetooth LAN, the devices are called |
| A. | Nodes |
| B. | Gadgets |
| C. | Piconet |
| D. | Entity |
| Answer» C. Piconet | |
| 78. |
If piconet has only one secondary station, the TDMA operation is very |
| A. | Complicated |
| B. | Complexed |
| C. | Simple |
| D. | Small |
| Answer» D. Small | |
| 79. |
The exact range of Bluetooth devices are |
| A. | 10 m |
| B. | 20 m |
| C. | 30 m |
| D. | 40 m |
| Answer» B. 20 m | |
| 80. |
In TDMA, the primary and secondary devices communicate with each other using |
| A. | Full-duplex mode |
| B. | Half-Duplex mode |
| C. | Multilevel mode |
| D. | Multimode |
| Answer» C. Multilevel mode | |
| 81. |
Each channel in Bluetooth layer is of |
| A. | 1 MHz |
| B. | 2 MHz |
| C. | 3 MHz |
| D. | 4 MHz |
| Answer» B. 2 MHz | |
| 82. |
For a I-Mbps data rate, the 16 Bit sequence in which only first bit is set to 1 and the rest are |
| A. | 0 |
| B. | 1 |
| C. | -1 |
| D. | 2 |
| Answer» B. 1 | |
| 83. |
Point Coordination Function (PCF) is implemented in an |
| A. | Infrastructure network |
| B. | Adhoc network |
| C. | Distributed network |
| D. | Cellular network |
| Answer» B. Adhoc network | |
| 84. |
Bluetooth network consists of one primary device and up to |
| A. | 5 Devices |
| B. | 7 Devices |
| C. | 9 Devices |
| D. | 11 Devices |
| Answer» C. 9 Devices | |
| 85. |
WiMAX stands for? |
| A. | Worldwide interoperability for microwave access |
| B. | Wireless maximum communication |
| C. | Wireless interoperability for microwave access |
| D. | Worldwide Internet for microwave access |
| Answer» B. Wireless maximum communication | |