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20160806 - CWTS
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Questions in this quiz (70)
1When implementing a wireless LAN, what is the area covered by an AP and usable by a client station called?
- ABasic Service Area
- BIndependent Basic Service Set
- CInfrastructure Basic Service Set
- DService Set Identifier
- EBasic Service Set Identifier
2Manufacturers design hardware used for wireless LANs based on a common set of criteria or rules known as standards. The name of the organization responsible for creating 802.11 WLAN standards is what?
- AIEEE
- BWi-Fi Alliance
- CIETF
- DWiMAX Forum
- EITU
3Select the statement that correctly describes the Wi-Fi Alliance's primary role in the WLAN industry.
- AThe Wi-Fi Alliance is a WLAN industry analyst firm that reports market trends and developments.
- BThe Wi-Fi Alliance ensures interoperability of band selection and power settings across regulatory domains.
- CThe Wi-Fi Alliance creates compliance standards around which vendors can develop products.
- DThe Wi-Fi Alliance creates recommended practices by which the IEEE can test and certify product interoperability.
- EThe Wi-Fi Alliance tests and certifies product interoperability based upon standards created by the IEEE.
4What wireless network access technology is used to cover a city with 802.11 or another wireless networking technology?
- AWPAN
- BWMAN
- CWWAN
- DWLAN
5Given: Your branch office AP is configured with WPA2-Personal, and you have decided that CWTS4me is a good passphrase. You have also configured your laptop with the same passphrase, which is used by the access point to validate the laptop's identity when it attempts to connect to the WLAN.
What is this process of identity validation called?- AAffiliation
- BAssociation
- CAuthentication
- DActivation
- EAccounting
6You are hired by ABC Company to recommend an appropriate solution for their wireless network. They would like to operate in the 2.4 GHz ISM frequency band and will require data throughput in excess of 10 Mbps. To meet that need, you recommend equipment compliant with the ______ or ______ amendments to the 802.11 standard. (Choose 2)
- A802.11a
- B802.11b
- C802.11i
- D802.11g
- E802.11n
7The Wi-Fi Multimedia (WMM) certification, which is illustrated in the exhibit, pertains to which topic?
- AFast BSS Transition
- BRadio Resource Measurement
- CQuality of Service
- DMesh Networking
- EDynamic Frequency Selection
- FSecurity Enhancements
8The two most common modes of WLAN discovery are passive scanning, where a client station listens for _________ frames, and active scanning, where a client sends and receives _________ frames.
- AData ; Null
- BSSID ; Management
- CBeacon ; Probe
- DProbe Response ; Broadcast
- EDiscovery ; Control
9What is a difference between an Infrastructure Basic Service Set (BSS) network and an AdHoc network?
- AIn an AdHoc network, only one WLAN controller is used. A BSS allows multiple WLAN controllers to be connected together to form a mobility domain.
- BAn AdHoc network allows only legacy security options such as WEP. A BSS allows the creation of a robust security network (RSN) using security methods such as WPA2- Personal.
- CA BSS is recommended for enterprise WLANs, while AdHoc deployments are recommended for small and medium businesses.
- DIn a BSS, an access point is used for connectivity to the wired network infrastructure. In an AdHoc network, client stations communicate directly with each other.
10Given: Several users are required to transfer files among themselves in a conference room. No APs are available for connections to the network infrastructure. All users have laptops with 802.11 wireless adapters installed and operational. What can you implement to allow users to transfer files when 802.11 adapters are available, but no wireless LAN infrastructure is accessible?
- AESS
- BBSS
- CIBSS
- DBSSID
- ESSID
11Wi-Fi certified network devices can operate in what frequency band(s)?
- A2.4 GHz only
- B900 MHz, 2.4 GHz, and 5 GHz
- C2.4 GHz and 5 GHz
- D5.8 GHz only
12As a new salesperson for ABC Company's Golden Gate division, you are tasked with selling Wi-Fi equipment. While evaluating the manufacturer's specifications for a specific Wi-Fi device, you read that this device supports 802.1X/EAP. What capability does this feature provide?
- AQoS for multimedia applications
- BPower Save functionality
- CAir Time Fairness
- DUser identity validation
13What layer of the OSI reference model is responsible for data framing for a given physical layer technology?
- ATransport
- BNetwork
- CData Link
- DSession
- EPresentation
- FApplication
14A WLAN bridge is best-suited for which scenario?
- AConnecting a lightweight access point to a WLAN controller
- BExtending the range of an autonomous access point
- CConnecting a portable classroom to a school network
- DConnecting a small group of wired users to an access point
- ELinking a cash register to a workgroup bridge
15Given: You are recommending an AP for use in a warehouse environment. Some APs will require directional antennas and others will use dipole antennas.
What feature must be supported by the APs in this installation?- AMultiple SSIDs
- BGrounding wire connectors
- CPole mounts
- DExternal antennas
- EVariable output power
16View the figures and correctly identify the antenna types illustrated in the figures.
- AFigure 1: Yagi
Figure 2: Patch - BFigure 1: Panel
Figure 2: Dipole - CFigure 1: Rubber Duck
Figure 2: Omni-directional - DFigure 1: Parabolic Dish
Figure 2: Grid - EFigure 1: Sectorized
Figure 2: Array
- AFigure 1: Yagi
17After installing a wireless client adapter into a laptop computer, what software is required to use the adapter and to configure it to connect to a Wi-Fi network? (Choose 2)
- AWeb Browser
- BClient Utility
- CProtocol Analyzer
- DCaptive Portal
- EDevice Driver
18As a salesperson, you have been contacted by an automobile dealership that currently manages each of their 5 SOHO-class access points individually. The owner of the dealership contracts his nephew for the dealership's network administration, but the nephew admits to a limited knowledge of WLAN technology. The dealership owner and his nephew want you to advise them on how they can simplify the management of their wireless network. You tell them that they are currently managing __________ access points, and they could consider _____________ to ease the management burden.
- AAutonomous; a WLAN controller-based architecture
- BMesh; a Wireless Network Management System
- CMIMO; copying one configuration file and importing it into the other access points
- DRoot; installing a Wireless Intrusion Protection System (WIPS) for management
- EController-based; a WLAN controller to manage their current access points
19In order to extend network access from Building 1 to Building 2, ABC Company has implemented a Wi-Fi solution. What type of Wi-Fi solution is shown in the figure?
(Choose 3)
- APoint-to-point
- BPoint-to-multipoint
- COmnidirectional
- DSemidirectional
- EMesh
- FBridge
20Which explanations of antenna usage are the most accurate? (Choose 2)
- AA parabolic dish antenna is ideal for directing a beam down a long hallway.
- BAn omni-directional antenna is well-suited to provide wireless coverage in most homes.
- CPatch antennas are mounted in the center of a lecture hall to provide circular coverage.
- DA dipole antenna is mounted to a perimeter wall in school buildings to provide coverage inside the building.
- EA grid antenna is designed to perform favorably as part of an outdoor point-to-point link under windy conditions.
21Given: To manage increasing enrollment and budget constraints, a school has temporarily parked classroom trailers near the main building on its campus. Students and teachers in the trailers are using desktop computers and have an occasional need to connect to the main building's network for web browsing. The main building has an existing 802.11g Wi-Fi network.
What would be the most cost-effective and easily-deployable solution to allow the desktop computers in the temporary classrooms to access the main building's network?- AInstall PCI Wi-Fi cards in all of the desktops and wirelessly connect each computer to the main building's access points.
- BInstall mesh access points in each of the trailers that connect with portal APs in the main building.
- CConnect the desktop computers in the trailers to the main building by running cables through the existing power conduits
- DInstall wireless workgroup bridges in each trailer through which the wired desktops can connect to the main building's APs.
22What is one difference between autonomous access points and controller-based access points?
- AController-based access points can be centrally managed, but autonomous access points cannot.
- BController-based access points support client roaming, but autonomous access points do not.
- CController-based access points cannot be configured on an individual basis, but autonomous access points can.
- DController-based access points associate to a WLAN controller, but autonomous access points do not.
23Identify the wireless radio interface type depicted in the illustration.
- AMini-PCIe
- BExpress Card
- CCardBus
- DSecure Digital
- EPCI
- FUSB 2.0
24ABC Company would like to provide Wi-Fi coverage to the area highlighted on the floorplan in the exhibit.
If mounted at location-A, what type of antenna would provide a coverage pattern similar to the highlighted area?
- ADiversity Patch
- BHigh-gain Yagi
- CParabolic Grid
- DLow-gain Dipole
- ESectorized Array
25Your customer has asked you to recommend a Wi-Fi solution that includes the following features:
1. Role Based Access Control
2. Stateful Firewall
3. Quality of Service
What device type can perform all of these functions?- AWireless Intrusion Prevention System (WIPS)
- BWireless Network Management System (WNMS)
- CWireless LAN Controller
- DWireless Workgroup Bridge
26As a general rule, where is the most appropriate location to install a dipole antenna?
- ANear the center of the coverage area
- BAt one end of the coverage area facing toward the other side
- CAt the perimeter of the coverage area facing inward
- DAt the perimeter of the coverage area facing outward
- EDirectly below the coverage area
27Given: ABC Company has asked you to recommend a solution that will provide wireless connectivity for desktop computers at various locations in their warehouse. The locations of the desktop computers prevent the use of Cat5e cabling.
What type of client adapter would provide Wi-Fi connectivity to these desktop computers?- AUSB 2.0
- BMini-PCIe
- CExpressCard
- DCardBus
- ESecure Digital
28ABC Corporation has decided to deploy their first Wi-Fi network in their corporate headquarters. ABC prepared for adding a Wi-Fi network by installing PoE-capable Ethernet switches in their wiring closets.
What type of PoE implementation is this?- AMidspan
- BEndpoint
- CInjector-based
- DPowerline
- EProprietary
29How do Wi-Fi routers differ from Wi-Fi access points?
- AWi-Fi routers are comprised of both a router and an access point within the same hardware.
- BWi-Fi routers allow wireless users to connect to a wired network, but Wi-Fi access points do not.
- CWi-Fi routers offer advanced security options, but Wi-Fi access points are only capable of basic security.
- DWi-Fi routers allow wireless users to talk to other wireless users, but Wi-Fi access points do not.
30The Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) protocol is necessary in Wi-Fi networks because ___________.
- ARF transmissions can be captured and decrypted without CSMA/CA.
- BWi-Fi clients need a standardized method of conserving battery power.
- C802.11g and 802.11b transceivers need an interpreter for compatibility.
- DThe wireless transmission medium is half-duplex, thus shared by all users.
- EWireless data must be converted to a format that is compatible with Ethernet networks.
31What unit of measurement is used to measure the power difference between two RF signals?
- AJoule
- BDecibel
- COhm
- DVolt
- EAmpere
32dBi is a(n) ___________ measurement of gain introduced by ___________?
- Aabsolute; an access point
- Babsolute; cables and connectors
- Crelative; an antenna
- Drelative; a radio chain
33In what type of Wi-Fi deployment is an antenna mounted using a pole mounting kit, as shown in the exhibit?
- AIndoor Mesh
- BOutdoor Bridging
- COffice space APs
- DHotel guest access
34802.11a operates in the __________ GHz frequency range and uses the ___________ frequency bands.
- A2.4, OFDM
- B2.4, ERP
- C2.4, HR/DSSS
- D5, OFDM
- E5, UNII
35What is used as a relative measurement of signal strength at the receiving client on an 802.11 wireless LAN?
- AWatt
- BdBm
- CRSSI
- DMilliwatt
36ABC Academy is currently using non-802.11 2.4 GHz wireless security cameras. What problem will ABC Academy experience if they deploy Wi-Fi client devices in the 2.4 GHz ISM band?
- AThe Wi-Fi client devices will experience performance degradation due to co-channel interference.
- BWi-Fi client devices will create a security hole in the Wi-Fi infrastructure as a protection mechanism.
- CIf the Wi-Fi client devices detect the security cameras, they will move to the 5 GHz band and stop transmitting in the 2.4 GHz band.
- DThe Wireless Network Management System (WNMS) would not be able to manage the APs near the security cameras.
37What two factors are used to calculate the wavelength of an RF wave? (Choose 2)
- AFrequency
- BSpeed of light
- CAmplitude
- DPhase
38What type of protection does a lightning arrestor provide to a Wi-Fi system?
- AProtection from direct lightning strikes
- BPrevention of direct lightning strikes
- CRedirection of transient current due to nearby lightning strikes
- DAbsorption of the energy induced by direct lightning strikes
39Which statement best defines SNR?
- AThe difference between the noise floor and a signal's strength
- BThe technology used to detect objects using RF waves
- CThe absolute measurement of signal strength at the receiver
- DThe frequency of the RF signal compared to that of an interferer
40Simple antenna diversity mitigates the adverse effects caused by which common Wi-Fi problem?
- AHidden node
- BRF signal absorption
- CMultipath
- DCo-channel interference
- EPolarization
41Which Wi-Fi technology simultaneously uses multiple radio chains to transmit or receive data?
- AHigh Rate Direct Sequencing Spread Spectrum (HR/DSSS)
- BOrthogonal Frequency Division Multiplexing (OFDM)
- CExtended Rate Physical (ERP)
- DMultiple Input, Multiple Output (MIMO)
42In preparation for site surveys, your company is creating a questionnaire that will help you understand your customer's client connectivity requirements. What question is NOT appropriate for your company's presurvey questionnaire?
- AWhat applications will be used by Wi-Fi client devices on the wireless network?
- BHow will Power over Ethernet (PoE) be supplied to Wi-Fi client devices?
- CHow many concurrent Wi-Fi client connections are expected on the wireless network?
- DWhat types of Wi-Fi client devices will be connected to the wireless network?
- EWhat 802.11 physical technology (PHY) will be used by the Wi-Fi client devices?
43A software-based site survey tool sold by your company allows your customers to determine access point coverage and optimum placement within a facility without visiting the facility.
What is the term that most accurately describes this type of site survey?- AGraphical Assessment
- BAutomated Calibration
- CDynamic Virtualization
- DPredictive Modeling
44As part of a pre-deployment manual RF site survey, your manager has assigned to you the task of documenting security and interference details about existing WLANs in the building. What is the best tool for locating and collecting information about existing APs in the building?
- ASpectrum analyzer
- BWi-Fi client utilities
- CWireless protocol analyzer
- DPredictive analysis software
- EWLAN controller
45What statement accurately describes an advantage of manual RF site surveys over predictive site surveys?
- AManual site surveys are useful for locating and identifying sources of RF interference, while predictive site surveys are not capable of this task.
- BManual site surveys are more efficient than predictive site surveys in large facilities because GPS mapping can be used.
- CManual site surveys are more accurate than predictive site surveys because they take advantage of complex computer simulations.
- DManual site surveys allow the site surveyor to create a static RF environment, whereas predictive site surveys are subject to changes in the RF environment.
46Given: You are performing a site survey using software that simulates RF behavior in a defined environment. It uses a floor plan and materials information for its calculations.
What kind of site survey is performed using this method?- AManual
- BActive
- CPredictive
- DPassive
47Which scenario represents an improper installation for an AP with low-gain omnidirectional antennas?
- APlaced above the doorway, at one end of a long hallway
- BPlaced on the ceiling, near the center of a meeting room
- CMounted near the middle of a small branch office
- DPlaced on a centrally-located desk in a small office
48What tool is best suited for locating and identifying sources of RF interference, such as microwave ovens?
- ASpectrum analyzer
- BWi-Fi client utilities
- CWireless protocol analyzer
- DPredictive analysis software
- EHigh-gain omni antenna
49Given: In Single-Channel Architecture (SCA) systems, multiple access points can use the same BSSID. This feature allows for the creation of a network-wide virtual access point that can be applied across multiple physical access points operating on the same channel. What benefit does this solution offer?
- AThe virtual AP can be managed using a WIPS platform
- BTransmissions travel farther since they are repeated by other APs
- CA wider variety of available security mechanisms are available
- DClient stations do not have to make roaming decisions
50In what situation is an RF site survey LEAST needed?
- AOffice with 3 APs in a multi-tenant building
- BWi-Fi network with 100 APs at a hospital
- CTelecommuters using a single "remote AP" at home
- DWi-Fi hot-spot with 10 APs at an airport
51In order to assess your customer's Wi-Fi network needs, you have arranged an initial meeting with your customer's representatives and your systems engineer. So that you can request cooperation and input from all stakeholders, which individuals from your customer's company should you invite to this functional requirements meeting? (Choose 2)
- ANetwork administrator
- BWireless end users
- CDirector of Human Resources
- DSoftware engineering manager
- EFacilities manager
52Given: A customer has recently purchased an 802.11g access point that accepts multiple external antennas. The customer wants to know if they need to purchase multiple antennas or a single antenna for the AP.
What do you tell them is a benefit of using multiple antennas?- AAdditional gain and therefore a larger coverage area
- BAdditional functionality through enabling of repeater features
- CTransmit and receive diversity that addresses multipath problems
- DImproved throughput by enabling full-duplex communication
53After your city implemented a municipal Wi-Fi network using 802.11g on channels 1, 6, and 11 near your office, your users have been complaining about poor performance on their 802.11b VoWiFi phones. The best solution for optimizing your 802.11a/g network to support VoWiFi in this scenario is to _____________.
- AConfigure your VoWiFi phones for unused 2.4 GHz channels.
- BBuy new phones that support WPA2-Personal security.
- CUpgrade your VoWiFi phones to 802.11g.
- DBuy new 5 GHz capable VoWiFi phones.
54What symptom would indicate the presence of a hidden node in a Wi-Fi network?
- AAn increase in encrypted packets
- BAn increase in antenna diversity
- CAn increase in signal leakage
- DAn increase in retransmissions
55Which one of the following adjustments can most benefit a high density environment?
- AAntennas with more gain
- BAPs with lower output power
- CPoE with more wattage
- DControllers with fewer 802.3 ports
56Where is the use of a Wireless Internet Service Provider (WISP) most appropriate?
- AWi-Fi bridging between two or more buildings within a city
- BTo provide guest access to the Internet in an office building
- CAs hot-spot connectivity in large airports and conference centers
- DLast mile wireless data delivery to homes and businesses
57As an RF signal propagates, it reflects off an object. The reflected signal and the signal following a direct path arrive at the receiver at different points in time. What is the term used to describe this RF behavior?
- AAntenna Diversity
- BMultipath
- CMultiple In, Multiple Out (MIMO)
- DChannel Reciprocity
- EBeamwidth Refraction
58What is the most likely cause of low throughput on a hotel's guest network?
- AThe 1.5 Mbps Internet connection is creating a bottleneck for the Wi-Fi users.
- BThe user's laptop does not have 54 Mbps data rate enabled.
- CThe strong security methods used with public access networks often cause low throughput.
- DThe user is too close to the servicing access point.
59As an alternative to using leased lines to connect two offices on the same campus, your customer wants to implement a Wi-Fi solution. When asked by your customer, what advantages do you cite regarding use of a Wi-Fi infrastructure instead of a leased line? (Choose 2)
- AWi-Fi implementations are more reliable than leased lines.
- BWi-Fi implementations have a lower total cost of ownership than leased lines.
- CWi-Fi implementations are not susceptible to outages caused by inclement weather.
- DWi-Fi implementations support larger numbers of simultaneous connections than leased lines.
- EWi-Fi implementations offer more flexibility and easier expansion than leased lines.
60In a typical office building, Wi-Fi clients are likely to experience poor Wi-Fi coverage in what locations? (Choose 2)
- ACubicles
- BEnclosed offices
- CHallways
- DElevators
- EStairwells
61Given: In ABC Company's branch office, there are three 802.11n access points serving 20 Wi-Fi clients for email, web browsing, and occasional file sharing. Some users sit at a picnic table outside the building during lunchtime and have complained that the network is slow and connectivity is intermittent during this period of time.
What is the most likely cause of the slow and intermittent connectivity?- AThe users experiencing connectivity problems are using WPA2-Personal, which has shorter range than 802.1X/EAP.
- BWLANs require visual line-of-sight, and only those clients that can see an AP through a window can connect.
- CThe picnic tables are located at the edge of the effective range of Wi-Fi coverage.
- DThe client laptops are using 802.11g radios that are not fully interoperable with 802.11n.
62Virtual Private Network (VPN) solutions are often used in conjunction with Wi-Fi networks for what purpose?
- AEndpoint security for travelling users connected to unsecure Wi-Fi hot-spots
- BValidating user identity when using 802.1X/EAP security
- CCapturing and analyzing wireless network frames
- DManaging access points that are connected to WLAN controllers
63ABC Manufacturing currently has 35 access points throughout their main facility, and each Friday afternoon two administrators walk the premises with spectrum and protocol analyzers to detect unauthorized devices and network activity. You have noted several problems with this approach. To address the inefficiencies with this approach and to provide the most robust preventative security, you have set aside a portion of the department's budget to install a ________.
- AFull-time Spectrum Analyzer
- BFull-time Protocol Analyzer
- CWireless Distribution System (WDS)
- DSingle Channel Architecture (SCA) system
- EWireless Intrusion Prevention System (WIPS)
64ABC Company is comprised of four departments: sales, marketing, engineering, and accounting. The company would like to separate the users on the WLAN so that users from different departments have access to different services on the network. To implement this strategy, you recommend a WLAN controller that supports _________.
- ARole Based Access Control (RBAC)
- BPreshared Key (PSK)
- CExtended Service Set Identifiers (ESSIDs)
- DMultiple Input Multiple Output (MIMO)
- EWireless Intrusion Protection System (WIPS)
65Which Wi-Fi vertical market applications are regulated by a government or industry group for security compliance? (Choose 2)
- APatient records in hospitals
- BGuest Internet services in coffee shops
- CInventory management in warehouses
- DLocation services on cargo ships
- EConsumer payment information in retail stores
66Identify the strongest passphrase-based security mechanism for 802.11 wireless networks.
- ATKIP
- BWPA-PSK
- CWPA2-Personal
- DRC4
- EWEP
67Given: In order to reduce travel-related expenses, your CFO has enacted a company policy that eliminates cellular data connectivity for traveling users. Many of your users must connect to the office network during travel, but you have security concerns about wireless hot-spot usage. To address these concerns, what advice should you give to your traveling users with regard to wireless hot-spot usage? (Choose 2)
- AOnly use hot-spots that offer either WPA2-PSK or 802.1X/EAP user-based security.
- BBefore connecting at hot-spots, conduct a scan to see if hacking tools are in use.
- CVerify that personal firewall and antivirus software are both enabled before connecting.
- DYou should only use fee-based hot-spots which are more secure than free hot-spots.
- EAlways use company-provided VPN client software after connecting to the Wi-Fi network.
68After successfully connecting to the Wi-Fi network in your hotel room, you launch a web browser on your laptop. Instead of opening your homepage, it directs you to a hotel- branded page that asks for your name, room number, and a secret key. What has most likely happened?
- AYou are the victim of a phishing attack, should not provide the information, and should call the front desk for help.
- BEvery room in the hotel has its own access point, and entering the room number and key confirms connectivity to the correct AP.
- CThe access point is out of connections and you must enter your room number and code to be added to the hotel's Access Request Queue (ARQ) to obtain the next available connection.
- DThe hotel is using a captive portal to provide guest connectivity while keeping non-guest users off the wireless network.
69ABC Company's wireless network is configured to hide the SSID in beacons, and allows connectivity only to approved MAC addresses. For encryption and authentication, ABC is using WEP security with a 128-bit key. You have been asked to provide feedback about the strength of their security. You tell ABC Company that _________.
- AEach currently-used security mechanism is helpful, and the network is secure.
- BMAC filtering will prevent unauthorized access, but SSID hiding and WEP will not.
- CMAC filtering and SSID hiding will prevent unauthorized access, but WEP will not.
- DWEP and SSID hiding will prevent unauthorized access, but MAC filtering will not.
- EEach currently-used security mechanism is weak, and the network is insecure.
70ABC Company has recently deployed a Wi-Fi network in their corporate facility. After deployment, they considered a solution for monitoring and enforcing their wireless security policy. What type of system can perform this task?
- AWireless Intrusion Prevention System (WIPS)
- BPredictive Modeling Survey Platform (PMSP)
- CUnified Wireless Network Controller (UWNC)
- DAdaptive Network Monitoring Service (ANMS)
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- CWNP (CWTS) Quiz on 20160806 - CWTS, created by Steffen Bosse on 06/08/2016.
- Author
- Steffen Bosse
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- Deutsch
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