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| 1 | IEEE has defined the specifications for a wireless LAN, called _______, which covers the physical and data link layers. |
 | A) | IEEE 802.3 |
| B) | IEEE 802.5 |
| C) | IEEE 802.11 |
| D) | IEEE 802.2 |
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| 2 | In IEEE 802.11, a ___ is made of stationary or mobile wireless stations and an optional central base station, known as the access point (AP). |
| A) | ESS |
| B) | BSS |
| C) | CSS |
| D) | none of the above |
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| 3 | 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) |
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| 4 | 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) |
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| 5 | 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 |
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| 6 | 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 |
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| 7 | 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 |
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| 8 | 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 |
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| 9 | 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) |
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| 10 | 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 |
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| 11 | 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 |
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| 12 | 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 |
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| 13 | 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 |
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| 14 | The IEEE 802.11 standard for wireless LANs defines two services: ______ and _______. |
| A) | BSS; ASS |
| B) | ESS; SSS |
| C) | BSS; ESS |
| D) | BSS; DCF |
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| 15 | 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 |
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| 16 | In IEEE 802.11, the access method used in the PCF sublayer is ______. |
| A) | contention |
| B) | controlled |
| C) | polling |
| D) | none of the above |
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| 17 | In IEEE 802.11, the ______ is a timer used for collision avoidance. |
| A) | NAV |
| B) | BSS |
| C) | ESS |
| D) | none of the above |
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| 18 | In IEEE 802.11, the MAC layer frame has ______ fields. |
| A) | four |
| B) | five |
| C) | six |
| D) | none of the above |
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| 19 | In IEEE 802.11, the addressing mechanism can include up to ______addresses. |
| A) | four |
| B) | five |
| C) | six |
| D) | none of the above |
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| 20 | The original IEEE 802.11, uses _________. |
| A) | FHSS |
| B) | DSSS |
| C) | OFDM |
| D) | either (a) or (b) |
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| 21 | The IEEE 802.11a, uses _________. |
| A) | FHSS |
| B) | DSSS |
| C) | OFDM |
| D) | either (a) or (b) |
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| 22 | The IEEE 802.11b, uses _________. |
| A) | FHSS |
| B) | DSSS |
| C) | OFDM |
| D) | either (a) or (b) |
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| 23 | The IEEE 802.11g, uses _________. |
| A) | FHSS |
| B) | DSSS |
| C) | OFDM |
| D) | either (a) or (b) |
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| 24 | The original IEEE 802.11, has a data rate of _____Mbps. |
| A) | 1 |
| B) | 6 |
| C) | 11 |
| D) | 22 |
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| 25 | IEEE 802.11a, has a data rate of _____Mbps. |
| A) | 1 |
| B) | 2 |
| C) | 6 |
| D) | none of the above |
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| 26 | IEEE 802.11b, has a data rate of _____Mbps. |
| A) | 1 |
| B) | 2 |
| C) | 5.5 |
| D) | none of the above |
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| 27 | IEEE 802.11g, has a data rate of _____Mbps. |
| A) | 1 |
| B) | 2 |
| C) | 11 |
| D) | 22 |
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| 28 | The IEEE 802.11 wireless LANs use ________ types of frames. |
| A) | four |
| B) | five |
| C) | six |
| D) | none of the above |
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| 29 | Bluetooth is a _______ technology that connects devices (called gadgets) in a small area. |
| A) | wired LAN |
| B) | wireless LAN |
| C) | VLAN |
| D) | none of the above |
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| 30 | A Bluetooth network is called a ________. |
| A) | piconet |
| B) | scatternet |
| C) | bluenet |
| D) | none of the above |
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| 31 | In Bluetooth, multiple ________ form a network called a _________. |
| A) | scatternet; piconets |
| B) | piconets: scatternet |
| C) | piconets: bluenet |
| D) | bluenet; scatternet |
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| 32 | A Bluetooth network consists of _____ primary device(s) and up to ____ secondary devices. |
| A) | one; five |
| B) | five; three |
| C) | two; six |
| D) | one; seven |
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| 33 | The RTS and CTS frames in CSMA/CA ____ solve the hidden station problem. The RTS and CTS frames in CSMA/CA ____ solve the exposed station problem. |
| A) | can; cannot |
| B) | cannot; can |
| C) | can; can |
| D) | cannot; cannot |
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| 34 | In Bluetooth, the current data rate is ____Mbps |
| A) | 2 |
| B) | 5 |
| C) | 11 |
| D) | none of the above |
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| 35 | In Bluetooth, the _______ layer is roughly equivalent to the physical layer of the Internet model. |
| A) | radio |
| B) | baseband |
| C) | L2CAP |
| D) | none of the above |
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| 36 | In Bluetooth, the _____layer is roughly equivalent to the MAC sublayer in LANs. |
| A) | radio |
| B) | baseband |
| C) | L2CAP |
| D) | none of the above |
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| 37 | 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 |
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| 38 | The access method in Bluetooth is ________. |
| A) | FDMA |
| B) | TDD-TDMA |
| C) | CDMA |
| D) | none of the above |
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| 39 | 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 |
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| 40 | In Bluetooth, the _____ link is used when data integrity is more important than avoiding latency. |
| A) | SCO |
| B) | ACL |
| C) | ACO |
| D) | SCL |
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| 41 | 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 |