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QUESTION 86
The PassGuide security administrator wants to prevent VLAN hopping on the network. What is one method that can be used to do this?
A. Configure VACLs.
B. Configure all frames with two 802.1Q headers.
C. Enforce username/password combinations.
D. Configure VACLs.
E. Explicitly turn off Dynamic Trunking Protocol (DTP) on all unused ports.
F. All of the above
Correct Answer: E Section: (none) Explanation
Explanation/Reference:
QUESTION 87
A hacker on the PassGuide network is attempting to hop onto a different VLAN. Which two statements about VLAN hopping are true? (Choose two)
A. An end station attempts to gain access to all VLANs by transmitting Ethernet frames in the 802.1q encapsulation.
B. Configuring an interface with the “switchport mode dynamic” command will prevent VLAN hopping.
C. Attacks are prevented by utilizing the port-security feature.
D. Configuring an interface with the “switchport mode access” command will prevent VLAN hopping.
E. An end station attempts to redirect VLAN traffic by broadcasting multiple ARP requests.
Correct Answer: AD Section: (none) Explanation
Explanation/Reference: QUESTION 88
LDAP is being used throughout the PassGuide wireless network. Which statement about the Lightweight Access Point Protocol (LWAPP) protocol is true?
A. The processing of 802.11 data and management protocols and access point capabilities is distributed between a lightweight access point and a centralized WLAN controller. B. LWAPP advertises its WDS capability and participates in electing the best WDS device for the wireless LAN.
B. LWAPP aggregates radio management forward information and sends it to a wireless LAN solution engine.
C. LWAPP authenticates all access points in the subnet and establishes a secure communication channel with each of them.
D. None of the other alternatives apply
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 89
On the PassGuide wireless LAN, A client is searching for an access point (AP). What is the correct process order that this PassGuide client and access point goes through in order to create a connection?
A. association request/response, probe request/response, authentication request/response B. association request/response, authentication request/response, probe request/response C. probe request/ response, authentication request/response, association request/response D. probe request/response, association request/response, authentication request/response E. None of the other alternatives apply
Correct Answer: Section: (none) Explanation
Explanation/Reference:
QUESTION 90
The PassGuide wireless network is using 802.11G access points. Which two statements are true about these access points? (Select two)
A. It supports eight different data rates.
B. It is fully backward compatible with 802.11b
C. It provides the same network throughput with 802.11b clients, 802.11g clients, or a mixed environment where both clients are present.
D. It is only compatibly with the 11 Mbps 802.11b transfer rate.
E. It has three non-overlapping channels in its channel options.
Correct Answer: BE Section: (none) Explanation
Explanation/Reference:
QUESTION 91
As the PassGuide wireless administrator, you required to be knowledgeable about the wireless LAN components. Which two statements about these components are true? (Select two)
A. In the autonomous access point solution, control is provided by the WLAN controller. B. In the lightweight access point solution, WLAN management is provided by the WLAN Control System
(WCS).
B. In the autonomous access point solution, control is provided by the WDS (Wireless Domain Services).
C. Cisco Aironet autonomous access points cannot be supported by the Cisco Unified Wireless Network.
D. Ii the lightweight access point solution, WLAN management is provided by the WLAN Solution Engine (WLSE).
E. Cisco Aironet lightweight access points cannot be supported by the Cisco Unified Wireless Network.
Correct Answer: BC Section: (none) Explanation
Explanation/Reference:
QUESTION 92
You need to determine the correct wireless LAN topology for use in the PassGuide network. Which three statements are true about the various WLAN topologies? (Select three)
A. In ad hoc mode, the Independent Basic Service Set (IBSS) is a framework in which mobile clients connect directly without an intermediate access point.
B. In Infrastructure mode, the Basic Service Set (BSS) is a framework in which mobile clients use a single access point for connecting to each other or to wired network resources. C. In Infrastructure mode, the Extended Services Set (ESS) is a framework in which two or more Basic Service Sets are connected by a common distribution system (DS). D. In Infrastructure mode, the Independent Basic Service Setet (IBSS) is a framework in which mobile clients connect directly without an intermediate access point. E. In ad hoc mode, the Basic Service Set (BSS) is a framework in which mobile clients use a single AP for connecting to each other or to wired network resources. F. In ad hoc mode, the Extended Services Set (ESS) is a framework in which two or more Basic Service Sets are connected by a common distribution system (DS)
Correct Answer: AB Section: (none) Explanation
Explanation/Reference:
QUESTION 93
A new Aironet 1200 series AP has been installed in the PassGuide WLAN. What happens when this device is connected to the LAN, with a default configuration?
A. The access point will attempt to download an encryption key from the nearest wireless server.
B. The access point makes several attempts to get an IP address from the DHCP server. If the access point does not receive an address, it assigns itself the IP address 10.0.0.1 for 5 minutes.
C. The access point will attempt to connect to the nearest wireless server using LEAP authentication.
D. The access point requests an IP address from the DHCP server. If the access point does not receive an address, it continues to send requests indefinitely.
E. None of the other alternatives apply
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 94
Which two features or capabilities are valid options for both an Autonomous WLAN solution and a Lightweight WLAN solution? (Select two)
A. PoE capability
B. Use of Cisco Secure Access Control Server (ACS) for security
C. Cisco IOS software for configuration
D. Cisco Wireless Control System (WCS) for management
E. Use of a Cisco Wireless Location Appliance location for tracking
Correct Answer: AB Section: (none) Explanation
Explanation/Reference:
QUESTION 95
You need to set up a PassGuide AP to act as a wireless repeater. What are three characteristics of this wireless repeater topology? (Select three)
A. The recommended overlap of the access point on the wired LAN and the wireless repeater is 25%.
B. Autonomous access points are required.
C. The SSID of the root access point must be configured on the repeater access point. D. The recommended overlap of the access point on the wired LAN and the wireless repeater is 50%.
D. Lightweight access points are required.
E. The recommended overlap of the access point on the wired LAN and the wireless repeater is 75%.
F. The SSID of the root access point must be distinct from that of the repeater access point.
Correct Answer: BCD Section: (none) Explanation
Explanation/Reference:
QUESTION 96
PassGuide is deploying a Cisco autonomous WLAN solution in their network. Which three components are included in this solution? (Select three)
A. Wireless Domain Services (WDS)
B. Access Control Server (ACS)
C. Lightweight Access Point Protocol (LWAPP)
D. Wireless LAN solution Engine (WLSE)
E. Wireless Services Module (WISM)
F. Wireless Control System (WCS)
Correct Answer: ABD Section: (none) Explanation
Explanation/Reference:
QUESTION 97
You work as a network technician at PassGuide.com. Your boss is interested in the Aironet enterprise solutions. What should you tell her regarding this? (Select two)
A. The Cisco Aironet AP handles real-time portions of the LWAPP protocol, and the WLAN controller handles those items which are not time sensitive.
B. A Cisco Aironet AP handles the transmission of beacon frames and also handles responses to probe-
request frames from clients.
C. Virtual MAC architecture allows the splitting of the 802.11 protocol between the Cisco Aironet AP and a LAN switch.
D. A Cisco Aironet solution includes intelligent Cisco Aironet access point (APs) and Cisco Catalyst switches.
E. In the Cisco Aironet solution, each AP is locally configured by the use of either a web interface or the command line interface.
Correct Answer: AB Section: (none) Explanation
Explanation/Reference:
QUESTION 98
In the PassGuide wireless LAN, what is the function of the Service Set Identifier (SSID)?
A. The SSID must match on both the PassGuide client and the PassGuide access point and provides MAC Address Authentication to authenticate the client to the access point. B. The SSID should be configured on the PassGuide client site only and provides data- privacy functions and authentication to the access point.
B. The SSID must match on both the PassGuide client and the PassGuide access point and provides encryption keys for authentication to the access point.
C. The SSID must match on both the PassGuide client and the PassGuide access point. The SSID is advertised in plain-text in the access point beacon messages.
D. None of the other alternatives apply
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 99
Under which three conditions does a client initiate roaming between wireless cells in the PassGuide WLAN? (Select three)
A. The access point has broadcast too many SSIDs.
B. The wireless client has missed too many beacons from the access point. C. The maximum data retry count, initiated by the wireless client, is exceeded.
C. The wireless client has reduced the data rate.
D. The access point has requested client reauthentication.
E. The wireless client has missed too many IAPP (Inter Access Point Protocol) updates.
Correct Answer: BCD Section: (none) Explanation
Explanation/Reference:
QUESTION 100
Which three statements are true about implementing wireless LANs in the PassGuide network using Cisco devices? (Select three)
A. Antenna power is a relative value reference to dBi.
B. LWAPP allows encrypted communications between lightweight access points and WLAN controllers.
C. Characteristics of antennas are directionality, gain, and polarization. D. Power over Ethernet (PoE) is only available when a WLAN controller is integrated into the network.
D. The WLAN solution Engine (WLSE) is used to control lightweight access points. F. One of the advantages of the lightweight WLAN solution is that the devices act indepently.
Correct Answer: ABC Section: (none) Explanation
Explanation/Reference:
QUESTION 101
LDAP is being utilized throughout the PassGuide Wireless network. Which issue or set of issues does the Lightweight Access Point Protocol (LWAPP) address?
A. Reduction of processing in wireless controllers
B. Distributed approach to authentication, encryption, and policy enforcement C. Access point discovery, information exchange, and configuration
C. Provides security by blocking communication between access points and wireless clients E. None of the other alternatives apply.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 102
The LWAPP (Lightweight Access Point Protocol) is in use within the PassGuide wireless LAN. Which statement is true about this protocol?
A. Real-time frame exchange is accomplished within the access point. B. The control traffic between the client and the access point is encapsulated with the LWAPP. C. Authentication, security, and mobility are handled by the access point. D. Data traffic between the client and the access point is encapsulated with LWAPP.
B. None of the other alternatives apply
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 103
You work as a network technician at PassGuide.com. Your boss is interested in the Cisco Compatible Extensions program. What are three features of this program?
A. Accounting
B. Analog and digital voice
C. Mobility
D. Security
E. Routing and switching
F. VLAN and QoS
Correct Answer: CDF Section: (none) Explanation Explanation/Reference:
QUESTION 104
You work as a network technician at PassGuide.com. Your boss is interested in LWAPP (Lightweight Access Point Protocol). What should you tell her regarding this technology? (Select 2)
A. LWAPP is a proprietary protocol, and because of its very high overhead it is not widely adopted.
B. Control traffic is encapsulated in UDP packets with a source port of 1024 and a destination port of 12223.
C. Layer 3 LWAPP is a UDP/IP Frame that requires a Cisco Aironet AP to obtain an IP address using DHCP.
D. Data traffic is encapsulated in UDP packets with a source port of 1024 and a destination port of 12223.
E. Control traffic is encapsulated in TCP packets with a source port of 1024 and a destination port of 12223.
F. Data traffic is encapsulated in TCP packets with a source port of 1024 and a destination port of 12223.
Correct Answer: BC Section: (none) Explanation
Explanation/Reference:
QUESTION 105
You work as a network technician at PassGuide.com. Your boss is interested LWAPP (Lightweight Access Point Protocol). In particular she wants to know which type of activities this protocol defines. What should you tell her? Select two.
A. Layer 3 addressing and distribution
B. SNMP monitoring services
C. Access point certification and software control
D. Packet encapsulation, fragmentation, and formatting
E. Compression and Layer 3 address mapping
F. User behaviors
Correct Answer: CD Section: (none) Explanation
Explanation/Reference:
QUESTION 106
A new lightweight access point (LAP) has been installed in the PassGuide WLAN. Which two Statements correctly describe the association process between this LAP and a WLAN controller? (Choose 2)
A. An access point will search for a controller using a broadcast address if using LWAPP Layer 2 and a unicast address if using LWAPP Layer 3 mode.
B. If multiple wireless controllers are detected by an access point, the controller with the fewest associated access points is chosen to associate with.
C. In order to associate in Layer 3 mode, the access point must have been preconfigured with an IP address.
D. Once an access point associates with a controller in LWAPP Layer 3 mode, it receives an IP address from the controller.
E. An access point first searches for a controller in LWAPP Layer 2 mode. If the search is not successful, the access point then attempts to locate a controller in LWAPP Layer 3 mode. F. If multiple wireless
controllers are detected by an access point, all of them will be used and traffic will be load balanced.
Correct Answer: BE Section: (none) Explanation
Explanation/Reference:
QUESTION 107
What are three functions of the Cisco wireless LAN controller, which is being used in the PassGuide Centralized WLAN solution network? (Select three)
A. Authentication
B. Mobility
C. Security management
D. Transmission of beacon frames
E. Real-time portions of MAC management
F. Real-time aspects of the 802.11 prtocol management
G. SNMP collection
Correct Answer: ABC Section: (none) Explanation
Explanation/Reference:
QUESTION 108
Access Point PG1 is an Aironet 1200 that has been converted from autonomous mode to LWAPP mode. After this conversion, which two statements are true? (Select two)
A. LWAPP-enabled access points can still communicate with Wireless Domain Services (WDS) devices.
B. An LWAPP-enabled access point console port provides read-only access to the unit.
C. LWAPP-enabled access points support Layer 2 LWAPP.
D. LWAPP-enabled access points must get an IP address and discover the controller using DHCP, DNS, or an IP subnet broadcast.
E. An LWAPP-enabled access point console port provides read-write access to the unit.
Correct Answer: BD Section: (none) Explanation
Explanation/Reference:
QUESTION 109
Which statement is true about the data traffic between the access point named PGAP1 and controller PGC1?
A. The data traffic between the access point and controller is not encrypted.
B. The data traffic is encapsulated with LWAPP.
C. The data traffic is switched at the access point before being sent to the WLAN controller where VLAN tagging and QoS are applied.
D. The data traffic is encrypted with AES.
E. All of the above
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 110
Which set of statements describes the correct order and process of a PassGuide wireless user client associating with a wireless access point in the PassGuide network?
A. 1. Access point sends probe request .2. Client sends probe response.3. Client initiates association.4. Access point accepts association.5. Client adds access point MAC address to association table.
B. 1. Client sends probe request.2. Access point sends probe response.3. Client initiates association.4.Access point accepts association.5. Access point adds client MAC address to association table.
C. 1. Client sends probe request.2. Access point sends probe response.3. Access point initiates association.4. Client accepts association.5. Access point adds client MAC address to association table.
D. 1. Access point sends probe request .2. Client sends probe response.3. Client initiates association.4. Access point accepts association.5. Access point adds client MAC address to association table.
E. 1. Client sends probe request.2. Access point sends probe response.3. Client initiates association.4. Access point accepts association.5. Client adds access point MAC address to association table.
F. None of the other alternatives apply.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 111
Which statement about the Lightweight Access Point Protocol (LWAPP) is true?
A. LWAPP encrypts both control traffic and user data.
B. LWAPP encrypts user traffic with an x.509 certificate using AES-CCMP. C. When set to Layer 3, LWAPP uses a proprietary protocol to communicate with the Cisco Aironet APs.
C. LWAPP encrypts control traffic between the AP and the controller.
D. None of the other alternatives apply.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 112
The Lightweight Access Point Protocol (LWAPP) is in use within the PassGuide wireless network. Which two statements correctly describe features of this protocol? (Choose two)
A. Control traffic between an access point and a controller is encrypted within LWAPP. B. Data traffic between an access point and a controller is encrypted within LWAPP.
B. Layer 3 mode packets are transmitted in TCP frames.
C. Data traffic between an access point and a controller is encapsulated within LWAPP.
D. VLAN tagging and QoS markings are applied at the access point.
Correct Answer: AD Section: (none) Explanation Explanation/Reference:
QUESTION 113
To save on intra-office call costs, the PassGuide network has implemented VOIP at all their locations. Which statement is true about IP telephony calls?
A. The voice carrier stream uses H.323 to set up, maintain, and tear down call endpoints. B. A Voice over IP (VoIP) packet consists of the voice payload, IP header, TCP header, RTP header, and Layer 2 link header.
B. Call control signaling uses Real-Time Transport Protocol (RTP) packets that contain actual voice samples.
C. The sum of bandwidth necessary for each major application, including voice, video, and data, should not exceed 75 percent of the total available bandwidth for each link.
D. None of the other alternatives apply
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 114
You need to troubleshoot some problems in the PassGuide VOIP network associated with jitter. What is the cause of jitter?
A. Packet drops
B. Transmitting too many small packets
C. Variable queue delays
D. Compression
E. None of the other alternatives apply
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 115
VOIP has been implemented at the main office of the PassGuide network. Which two statements are true about voice packets in a LAN? (Select two)
A. Voice carrier stream utilizes Real-Time Transport Protocol (RTP) to carry the audio/media portion of the VoIP communication.
B. Voice traffic data flow involves large volumes of large packets.
C. Because a packet loss involves a small amount of data, voice traffic is less affected by packet losses than traditional data traffic is.
D. Voice packets are encapsulated in TCP segments to allow for proper sequencing during delivery.
E. Voice packets are very sensitive to delay and jitter.
Correct Answer: AE Section: (none) Explanation
Explanation/Reference: QUESTION 116
Which QoS mechanisms can you use on a converged network to improve VoIP quality? (Select three)
A. The use of a queuing method that will give VoIP traffic strict priority over other traffic.
B. The use of RTP header compression for the VoIP traffic.
C. The proper classification and marking of the traffic as close to the source as possible.
D. The use of 802.1QinQ trunking for VoIP traffic.
E. The use of WRED.
Correct Answer: ACE Section: (none) Explanation
Explanation/Reference:
QUESTION 117
Which three QoS mechanisms can be configured to improve VoIP quality on a converged network? Select three.
A. The use of a queuing method that will give VoIP traffic strict priority over other traffic B. The use of RTP header compression for the VoIP traffic.
B. The proper classification and marking of the traffic as close to the source as possible D. The use of 802.1QinQ trunking for VoIP traffic
C. The use of WRED for the VoIP traffic
Correct Answer: AC Section: (none) Explanation
Explanation/Reference:
QUESTION 118
In the PassGuide VOIP network, which two statements are true? (Select two)
A. Voice packets are typically around 600 bytes to 1200 bytes.
B. For voice quality, packet loss should be less than 2 percent and delay should be no more than 250 ms.
C. Voice packets are typically around 60 KB to 120 KB.
D. For voice quality, packet loss should be less than 1 percent and delay should be no more than 150 ms.
E. A typical voice call requires 17 kbps to 106 kbps of guaranteed priority bandwidth plus an additional 15 kbps per call for voice-control traffic.
F. Voice packets are typically around 60 bytes to 120 bytes.
G. Voice packets are typically around 6 bytes to 12 bytes.
Correct Answer: DF Section: (none) Explanation
Explanation/Reference:
QUESTION 119
You need to determine which type of call signaling you want to use in your new VOIP network. What are three examples of call control signaling that could be used? (Select three)
A. RTP
B. SIP
C. G.729
D. H.323
E. G.711
F. MGCP
Correct Answer: BDF Section: (none) Explanation
Explanation/Reference:
QUESTION 120
Which three are characteristics of voice traffic in the PassGuide VOIP campus network? (Select three)
A. TCP retransmits
B. UDP priority
C. Bursty
D. Delay sensitive
E. Greedy
F. Drop sensitive
Correct Answer: BDF Section: (none) Explanation
Explanation/Reference:
QUESTION 121
PassGuide is migrating to VOIP. Which statement is true about utilizing a data network for Voice over IP traffic?
A. Voice traffic will require some form of QoS mechanisms in most networks.
B. Because voice traffic volume cannot be calculated, network bandwidth requirements must be determined from an existing installation.
C. Adding bandwidth to the data network is the primary solution to provide for the needs of voice traffic.
D. Network congestion must be totally eliminated to provide proper voice traffic performance. E. Voice traffic will require some form of QoS implementation only in congested networks.
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 122
PassGuide wants to use their existing data network for VOIP use. What three statements are true for networks that are enabled for voice as well as data traffic? (Choose three)
A. Redundant hardware, redundant links, UPS, and proactive network management are data network standards that do not apply to voice networks.
B. The increased costs of voice enabled networks are offset by increased worker productivity. C. High availability networks must be created to avoid network congestion and overcome a lack of redundancy and poor engineering.
C. An uptime of 99.999 percent is achieved using a 4-hour service response contract for system problems.
D. Auxiliary VLANs provide the ability to apply QoS to voice traffic without affecting the flow of data from the client PC.
E. For ease of implementation, most VoIP phones use in-line power to get power through the same cable on which data is sent.
Correct Answer: CE Section: (none) Explanation
Explanation/Reference:
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