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Chpt 15 networking
| Term | Definition |
|---|---|
| With what technology can you avoid finding an AC outlet for a WAP? | B) PoE |
| Where would wireless access points likely be found? | E) Answers A, B, and C A) Airport B) Café C) Historic buildings |
| Which of the following statements about SSIDs are true? | E) Answers A, C, and D A) All wireless networks use them. C) They should be unique to your wireless LAN. D) They are broadcast, by default, by most wireless network devices. |
| What is the best way to connect multiple wireless segments together? | C) Use a point-to-multipoint wireless bridge. |
| What should you use when you want to limit access to your wireless network based on the physical, hard-coded address of each wireless network device? | D) MAC address filtering |
| What process secures a wireless network by protecting data packets being transmitted? | C) Data encryption |
| What is the predefined silence period between data transmissions called? | B) IFG |
| Which of the following networking standards operates at a frequency of 5.0 GHz? | A) 802.11a |
| Which of the following is the wireless network encryption method that is most secure? | D) WPA2 |
| Which of the following is known as a Basic Service Set in infrastructure mode? | A) A WAP |
| In an attempt to maximize your wireless throughput while minimizing interference on your brand new 802.11b/g WAP, which setting should you change? | C) Change the channel to anything other than 6. |
| What innovation enables 802.11n networks to minimize dead spots? | D) Transit beamforming |
| What’s the optimal range for an 802.11n connection? | C) 300' |
| To achieve maximum Wi-Fi coverage in a room, where should you place the WAP? | B) Place the WAP in the center of the room. |
| Dave has set up a Wi-Fi network for his café that works well for most patrons but works poorly on the patio. What’s the least expensive option for making Wi-Fi work for the patio customers? | A) Replace the factory antennas on the WAP. |
| When a network uses the 802.11 standard, it is said to be a _____________. | WI-fi or wireless |
| Establishing a unique__________ or network name helps ensure that only wireless network devices configured similarly are permitted access to network. | SSID(Service set identifier) |
| Of the several wireless encryption protocols, _______ is the least secure. | WEP(Wired equivalent privacy) |
| Of the two different spread-spectrum broadcasting methods, ____________ sends data out on different frequencies at the same time and, therefore, uses considerably more bandwidth. | DSSS(Direct-sequence spread spectrum) |
| WPA uses________ to encrypt data whereas WPA2 uses the more secure ___________. | 1. Temporal key integrity protocol(Tkip) 2. Advanced encryption standard(AES). |
| ______________ allows devices on 802.11n networks to make multiple simultaneous connections, allowing for a theoretical throughput of 600 Mbps. | Multiple in/multiple out(MIMO) |
| 802.11 implements ____________, which proactively avoids network packet collisions rather than simply detecting them when they occur. | CSMA/CA |
| Connecting two WI-Fi computers through a WAP uses ____________, whereas connecting the two wirelessly together directly uses ________________. | infrastructure mode and post hic mode |
| Some 802.11g and all 802.11n devices enable _____________ to use two channels at the same time for transmission. | Channel bonding |
| When you want to extend a wireless network, simply add another ____________. | WAP |
| The 802.11 standard defines three different spread-spectrum broadcasting methods ___________.... | 1. Direct sequence spread spectrum(dsss) 2. frequency hopping spread spectrum(fhss) 3. Orthogonal frequency division multiplexing(Ofdm) |
| The 802.11 standard defines two methods of collision avoidance. | 1. Distributed coordination function(DFC) and 2. Point coordination function(pcf) |
| 802.11a has what speed and range? 802.11b has what speed and range? 802.11g has what speed and range? 802.11n has what speed and range? | 802.11a has a speed of 54 Mbps and range of 150 feet. 802.11b has a speed of 11 Mbps and range of 300 feet. 802.11g has a speed of 54 Mbps and range of 300 feet. 802.11n has a speed of 100 Mbps and range of 300 feet. |
| The __________________defines the most basic infrastructure mode network. | Basic service set identifier(BSSID) |
| What is a SSID? | a ssid is a 32 bit identification string that's inserted into the header of each frame processed by a wap. Every wi-fi device must share the same ssid to communicate in a single network. |
| How many channels is in the 802.11 standard? What channels are used in the united states? | (a)14 channels....... (b)1 through 11 are used in the united states |
| The standard straight wire antennas that provide the most omnidirectional functions are called__________. | Dipole antennas |
Created by:
Matthew28
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