CCIE ROUTING SWITCHING EXAM CERTIFICATION GUIDE

The OSI Reference Model 21Examples of data-link layer technologies are the following:• Frame Relay • Asynchronous Transport Mode (ATM)• Synchronous Data Link Control (SDLC)• High-level data-link control (HDLC)• IEEE 802.3z and IEEE 802.3ab (Gigabit Ethernet)• IEEE 802.3u (Fast Ethernet)• Ethernet ve[r]

CCIE Professional Development Inside Cisco IOS Software Architecture PASSWORD: http://blueportal.org BluePortal.org_CCIE_Professional_Development_Troubleshooting_IP_Routing_Protocols.rar.html CCIE Routing and Switching Exam Certification Gui[r]

102 CCNA Wireless Official Exam Certification GuideHow 802.11g Interacts with 802.11bOne interesting point about 802.11g is that, although it is backward compatible with802.11b clients, you probably do not want it to be because if you must support 802.11bclients, the entire cell suffer[r]

120240150210180Figure 5-21 E-plane of the AIR-ANT1949 YagiWhen you mount a yagi, the polarity is important to consider. Because the antenna is en-closed in a protective casing, you might not be able to look at it and know the radiationpattern. Read the manufacturer documentation or look for manufact[r]

92 CCNA Wireless Official Exam Certification Guidedipole, radiation pattern, isotropic radiator, directional antenna, rubber duck, Yagi-Uda,parabolic dish, dual-patch “omnidirectional,” Reverse-Polarity Threaded Neill-Concelman(RP-TNC), N connector, attenuator, amplifier, lightning arr[r]

This chapter covers the following subjects:Wireless Frame Transmission: A discussion ofhow frames are transmitted on a wireless LAN.Wireless Frame Headers: A look at the headersused in wireless transmissions.Frame Types: Putting together how the frametypes are used in managing and connecting to a ne[r]

–30–25–20–15–10–50303306030090270120240150210180Figure 5-4 E-planeChapter 5: Antenna Communications 75AIR-ANT1728The AIR-ANT1728, shown in Figure 5-7, is a ceiling-mounted omnidirectional antenna op-erating at 5.2 dBi.You would use this when a 2.14-dBi dipole doesn’t provide adequate coverage for an[r]

05_1587202115_ch04.qxd 9/29/08 2:44 PM Page 5556 CCNA Wireless Official Exam Certification GuideFigure 4-2 Ad Hoc NetworkThe fourth that could be present is a NEXT_HOP address in the event that you are using aworkgroup bridge (WGB).An AP is actually just one type of wireless station. T[r]

directions. This can be caused by some object that has reflective, yet jagged edges, suchas dust particles in the air and water. One way to illustrate the effects would be to considershining a light onto a pile of broken glass. The light that is reflected shoots off in manydifferent directions. The[r]

42 CCNA Wireless Official Exam Certification GuideDetermining Signal Strength InfluencesAlthough it might seem hopeless to deploy a network that is susceptible to various formsof interference, you can fight back. To fight back, you need to know what tools are avail-able out there for y[r]

62 CCNA Wireless Official Exam Certification GuideOutdoor Mesh NetworksAs you can see, bridges are a good way to connect remote sites. However, suppose thatyou are operating in a point-to-multipoint topology, and the central site experiences con-gestion. Who suffers? Just the central s[r]

122 CCNA Wireless Official Exam Certification GuideFigure 7-6 Beacon Frame Detailsprocess of how a client searches channels and displays connection capability information.For now, just understand that the beacon frame allows a client to passively scan a network.Sometimes, however, you[r]

b. You must know the IP addressing on the AP.c. Client devices must be in the same VLAN.d. Each device in the Layer 3 domain must be on the same subnet.4. Which state is not a valid state of an AP that is discovering and joining a controller?a. Discoverb. Joinc. Image Datad. Hybrid-REAP5. What is th[r]

when one AP goes down) are detected by another access point, the controller can actuallyadjust power settings on other APs in the area to correct the coverage hole.LWAPP can operate in two modes:■ Layer 2 LWAPP mode: This mode deals only with MAC addresses. This makessense, because this is the only[r]

192 CCNA Wireless Official Exam Certification GuideFoundation TopicsUnderstanding the Different LWAPP ModesLWAPP can operate in either Layer 2 LWAPP mode or Layer 3 LWAPP mode. The Layer 2mode is considered out of date, and Cisco prefers and recommends Layer 3 mode. Layer 3mode is the[r]

APs?a. 50b. 100c. 300d. 60013. True or false: An AP must run the same version of code as the controller.a. Trueb. False14. What type of device is the 3750G series Wireless LAN Controller integrated into?a. A router as a moduleb. A router as part of the codec. A 3750 series switchd. It’s a blade for[r]

202 CCNA Wireless Official Exam Certification GuideController APrimary WLAN ASecondary WLAN BTertiary WLAN CController B Controller CPrimary WLAN BSecondary WLAN CTertiary WLAN APrimary WLAN CSecondary WLAN ATertiary WLAN BFigure 11-8 Controller Redundancycontroller for WLAN A. Each WL[r]

7. How many VLANs typically are assigned to an access port on a switch?a. 2b. 4c. 256d. 1144 CCNA Wireless Official Exam Certification Guide10_1587202115_ch09.qxp 9/29/08 2:39 PM Page 144Chapter 9: Delivering Packets from the Wireless to Wired Network 1458. What are trunks norma[r]

132 CCNA Wireless Official Exam Certification Guide2. DECT devices in the U.S. use what designation to differentiate them from EuropeanDECT devices?a. DECT 1.0b. DECT 2.0c. DECT 6.0d. US-DECT3. Bluetooth is designed to cover what type of area?a. Metropolitanb. Wide areac. Local[r]

BroadcastNot TaggedBroadcaston NativeFigure 9-10 Native VLAN Mismatchyou can modify it, it is important to ensure that the native VLAN is the same VLAN onboth ends of the link. Because the traffic for the native VLAN is not tagged, the switchesassume that the frames are on the native VLAN. If the na[r]