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.
| 51. |
A Frame in the baseband layer can be of |
| A. | 1 Type |
| B. | 2 Types |
| C. | 3 Types |
| D. | 4 Types |
| Answer» D. 4 Types | |
| 52. |
In IEEE 802.11 frames, when the values of, To DS and from DS are 11, its means the distribution system is |
| A. | Local Area Network |
| B. | Wireless Area Network |
| C. | Metropolitan Network |
| D. | None of the given |
| Answer» C. Metropolitan Network | |
| 53. |
HEC field in Bluetooth data frame is used for |
| A. | Error detection |
| B. | Error Correction |
| C. | Data Flow |
| D. | Propagation delay |
| Answer» C. Data Flow | |
| 54. |
The data rate of Bluetooth is |
| A. | 4 Mbps |
| B. | 3 Mbps |
| C. | 2 Mbps |
| D. | 1 Mbps |
| Answer» E. | |
| 55. |
A set that makes stationary or mobile wireless station and also have optional central base station is known as |
| A. | Basic service set |
| B. | Extended service set |
| C. | Network point set |
| D. | Access point |
| Answer» B. Extended service set | |
| 56. |
The special control frame that is used in the repetition interval is called |
| A. | Network Frame |
| B. | Beacon Frame |
| C. | Request Frame |
| D. | Send Frame |
| Answer» C. Request Frame | |
| 57. |
IEEE 802.11 covers the physical layer and |
| A. | Network layer |
| B. | Data link layer |
| C. | Session layer |
| D. | Transport layer |
| Answer» C. Session layer | |
| 58. |
A Bluetooth LAN is an |
| A. | Adhoc Network |
| B. | Infrastructure Signals |
| C. | Adhoc signals |
| D. | Infrastructure LAN |
| Answer» B. Infrastructure Signals | |
| 59. |
The Media Access Control layer frame has |
| A. | 5 Fields |
| B. | 7 Fields |
| C. | 9 Fields |
| D. | 11 Fields |
| Answer» D. 11 Fields | |
| 60. |
IEEE 802.11 defines the basic service set as the building block of a wireless |
| A. | LAN |
| B. | WAN protocol |
| C. | MAN |
| D. | All of the above |
| Answer» B. WAN protocol | |
| 61. |
A Bluetooth network is called |
| A. | Wireless Network |
| B. | WAN |
| C. | Piconet |
| D. | LAN |
| Answer» D. LAN | |
| 62. |
The term in which a station can move from one basic service set to another is called |
| A. | BSS transition mobility |
| B. | ESS transition mobility |
| C. | No transition mobility |
| D. | None of the above |
| Answer» B. ESS transition mobility | |
| 63. |
In field control frames, there are four address in which address 1 is always the address of |
| A. | Next device |
| B. | Previous device |
| C. | Final destination |
| D. | Original source |
| Answer» B. Previous device | |
| 64. |
In IEEE 802.11, when a frame is going from one station in a BSS to another without passing through the distribution system, the address flag is _____ |
| A. | 00 |
| B. | 01 |
| C. | 10 |
| D. | 11 |
| Answer» B. 01 | |
| 65. |
In IEEE 802.11, when a frame is going from a station to an AP, the address flag is _____. |
| A. | 00 |
| B. | 01 |
| C. | 10 |
| D. | 11 |
| Answer» D. 11 | |
| 66. |
In IEEE 802.11, 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 | |
| 67. |
In IEEE 802.11, when a frame is going from one AP to another AP in a wireless distribution system, the address flag is _____. |
| A. | 00 |
| B. | 01 |
| C. | 10 |
| D. | 11 |
| Answer» E. | |
| 68. |
Which of the following is a language that allows the text portions of Web pages to be presented on cellular telephones and personal digital assistants (PDAs) via wireless access? |
| A. | HDML |
| B. | Wireless Markup Language |
| C. | Both of the above |
| D. | Neither of the above |
| Answer» D. Neither of the above | |
| 69. |
Developed by International Telecommunication Union (ITU), ______ is a code-division multiple access (CDMA) version of the IMT-2000 standard. |
| A. | CDMA |
| B. | WCDMA |
| C. | CMYK |
| D. | CDMA2000 |
| Answer» E. | |
| 70. |
Which of the following is a faster version of GSM wireless service, designed to deliver data at rates up to 384 Kbps and enable the delivery of multimedia and other broadband applications to mobile phone and computer users? |
| A. | ESMR |
| B. | BREW |
| C. | EDGE |
| D. | ETRN |
| Answer» D. ETRN | |
| 71. |
_________ is a security protocol designed to provide a wireless LAN with a level of security and privacy comparable to what is usually expected of a wired LAN. |
| A. | WEP |
| B. | 802.11x |
| C. | RMON |
| D. | LDAP |
| Answer» B. 802.11x | |
| 72. |
In IEEE 802.11, a BSS without an AP is called an _________. |
| A. | An ad hoc architecture |
| B. | An infrastructure network |
| C. | Either (a) or (b) |
| D. | Neither (a) nor (b) |
| Answer» B. An infrastructure network | |
| 73. |
In IEEE 802.11, a BSS with an AP is sometimes referred to as ____________. |
| A. | An ad hoc architecture |
| B. | An infrastructure network |
| C. | Either (a) or (b) |
| D. | neither (a) nor (b) |
| Answer» C. Either (a) or (b) | |
| 74. |
In IEEE 802.11, communication between two stations in two different BSSs usually occurs via two ________. |
| A. | BSSs |
| B. | ESSs |
| C. | APs |
| D. | None of the above |
| Answer» D. None of the above | |
| 75. |
In IEEE 802.11, a station with ________ mobility is either stationary (not moving) or moving only inside a BSS. |
| A. | No-transition |
| B. | BSS-transition |
| C. | ESS-transition |
| D. | None of the above |
| Answer» B. BSS-transition | |
| 76. |
In IEEE 802.11, a station with ________mobility can move from one BSS to another, but the movement is confined inside one ESS. |
| A. | No-transition |
| B. | BSS-transition |
| C. | ESS-transition |
| D. | None of the above |
| Answer» C. ESS-transition | |
| 77. |
In IEEE 802.11, a station with ________ mobility can move from one ESS to another. |
| A. | No-transition |
| B. | BSS-transition |
| C. | ESS-transition |
| D. | None of the above |
| Answer» D. None of the above | |
| 78. |
In IEEE 802.11, _______ is an optional access method that can be implemented in an infrastructure network (not in an ad hoc network). |
| A. | DCF |
| B. | PCF |
| C. | Either (a) or (b) |
| D. | Neither (a) nor (b) |
| Answer» C. Either (a) or (b) | |
| 79. |
The IEEE 802.11 standard for wireless LANs defines two services: ______ and _______. |
| A. | BSS, ASS |
| B. | ESS, SSS |
| C. | BSS, ESS |
| D. | BSS, DCF |
| Answer» D. BSS, DCF | |
| 80. |
In IEEE 802.11, the access method used in the DCF sublayer is _________. |
| A. | ALOHA |
| B. | CSMA/CA |
| C. | CSMA/CD |
| D. | None of the above |
| Answer» C. CSMA/CD | |
| 81. |
In IEEE 802.11, the ______ is a timer used for collision avoidance. |
| A. | NAV |
| B. | BSS |
| C. | ESS |
| D. | None of the above |
| Answer» B. BSS | |
| 82. |
In IEEE 802.11, the addressing mechanism can include up to ______addresses. |
| A. | Four |
| B. | Five |
| C. | Six |
| D. | None of the above |
| Answer» B. Five | |
| 83. |
The original IEEE 802.11, uses _________. |
| A. | FHSS |
| B. | DSSS |
| C. | OFDM |
| D. | Either (a) or (b) |
| Answer» E. | |
| 84. |
IEEE 802.11a, has a data rate of _____Mbps. |
| A. | 1 |
| B. | 2 |
| C. | 6 |
| D. | None of the above |
| Answer» D. None of the above | |
| 85. |
The original IEEE 802.11, has a data rate of _____Mbps. |
| A. | 1 |
| B. | 6 |
| C. | 11 |
| D. | 22 |
| Answer» B. 6 | |
| 86. |
The IEEE 802.11b, uses _________. |
| A. | FHSS |
| B. | DSSS |
| C. | OFDM |
| D. | Either (a) or (b) |
| Answer» C. OFDM | |
| 87. |
The IEEE 802.11a, uses _________. |
| A. | FHSS |
| B. | DSSS |
| C. | OFDM |
| D. | Either (a) or (b) |
| Answer» D. Either (a) or (b) | |
| 88. |
The IEEE 802.11g, uses _________. |
| A. | FHSS |
| B. | DSSS |
| C. | OFDM |
| D. | Either (a) or (b) |
| Answer» D. Either (a) or (b) | |
| 89. |
IEEE 802.11b, has a data rate of _____Mbps. |
| A. | 1 |
| B. | 2 |
| C. | 5.5 |
| D. | None of the above |
| Answer» D. None of the above | |
| 90. |
In IEEE 802.11 DSSS, infrared sequence is mapped into a |
| A. | 12 Bit Sequence |
| B. | 14 Bit Sequence |
| C. | 16 Bit Sequence |
| D. | 18 Bit Sequence |
| Answer» D. 18 Bit Sequence | |
| 91. |
In wireless LAN, there are many hidden stations so we cannot detect the |
| A. | Frames |
| B. | Collision |
| C. | Signal |
| D. | Data |
| Answer» C. Signal | |
| 92. |
In IEEE 802.11 frames, To DS and from DS define the value of the two flags in the |
| A. | Sequence field |
| B. | Data field |
| C. | Frame control field |
| D. | Duration field |
| Answer» D. Duration field | |
| 93. |
The header of the baseband layer frame has three identical sections of |
| A. | 12 Bits |
| B. | 16 Bits |
| C. | 18 Bits |
| D. | 20 Bits |
| Answer» D. 20 Bits | |
| 94. |
When a station is idle, it waits for the period of time is called |
| A. | Distributed Interframe Space |
| B. | Short Interframe Space |
| C. | Request to sent |
| D. | Clear to send |
| Answer» B. Short Interframe Space | |
| 95. |
When we divide the band of Orthogonal Frequency Division Multiplexing (OFDM) into sub bands, it diminishes the effects of |
| A. | Noise |
| B. | Collision |
| C. | Interference |
| D. | Signals absence |
| Answer» D. Signals absence | |
| 96. |
The baseband is roughly equivalent to the MAC sub layer in |
| A. | WANs |
| B. | LANs |
| C. | MANs |
| D. | Wi-Fi |
| Answer» C. MANs | |
| 97. |
L2CAP have specific duty of |
| A. | Multiplexing |
| B. | Quality of service |
| C. | Segmentation and reassembly |
| D. | All of the above |
| Answer» E. | |
| 98. |
The value of the frame body field of Media Access Control frame is in between |
| A. | 0 and 512 bytes |
| B. | 0 and 1214 bytes |
| C. | 0 to 2312 bytes |
| D. | 0 to 3450 bytes |
| Answer» D. 0 to 3450 bytes | |
| 99. |
The duration field D of Media Access Control layer frame contains |
| A. | 2bytes |
| B. | 4 bytes |
| C. | 6 bytes |
| D. | 8 bytes |
| Answer» B. 4 bytes | |
| 100. |
Bluetooth has used a sophisticated version of |
| A. | CSK |
| B. | FSK |
| C. | TDMA |
| D. | CDMA |
| Answer» C. TDMA | |