PW0-205 무료 덤프문제 온라인 액세스

ABC Company has hired you to troubleshoot an intermittent performance problem with their 802.11g wireless LAN. They have noticed that intermittently throughout a typical day, their wireless LAN latency increases enough to interrupt some mission critical applications.
ABC demands that you wait until after business hours to begin any troubleshooting that might cause service interruptions to the wireless network. Considering that ABC Company has no baseline analysis, what possible first step do you take toward troubleshooting ABC Company wireless network problem?

• A.After business hours, you enable the traffic generator function of a wireless protocol analyzer in order to simulate various high utilization conditions on the network while testing ABC Company applications.
• B.You perform a walk-through of ABC Company's premises during business hours using a protocol analyzer looking for 802.11g Basic Service Sets that have both 802.11b and
  802.11g stations associated. You then compare this information to where the latency is being experienced.
• C.You perform a walk-through of ABC Company premises during business hours using a protocol analyzer looking for data frames with high Retry counts and MAC CRC Error counts.
• D.You install protocol analyzer probes near each access point in order to see if a large percentage of data frames are carrying their maximum payload over the next two days.
• E.Using a protocol analyzer, you search for rogue access points that might be causing interference in the 2.4 GHz ISM band by emitting beacons.
• F.After business hours, you search for wireless clients that are transmitting too many Probe Request frames and temporarily replace them as a troubleshooting measure.

What is indicated when the ToDS and FromDS bits are set to 1 in the Frame Control field?

• A.The frame is being transmitted from one wireless client station to another wireless station within the same BSS
• B.The frame is being transmitted from a wireless client station to an access point where the frame terminates at the access point.
• C.The frame is being transmitted from a wired station to a wireless client station.
• D.The frame is being transmitted from a wireless client station to a wired station.
• E.The frame is being transmitted between two access points over a wireless distribution system.

Choose the correct pairing of IEEE 802.11 standards with their specification of supported preamble lengths.

• A.802.11a -long preamble support mandatory, short preamble support mandatory
• B.802.11g -long preamble support mandatory, short preamble support mandatory
• C.802.11b -long preamble support mandatory, short preamble support optional
• D.802.11 -long preamble support mandatory, short preambles not supported
• E.802.11b -long preamble support mandatory, short preamble support mandatory

An 802.11g compliant wireless client station sends a Data frame to a wired station that is connected to a Fast Ethernet switch. The 802.11g Data frame has a payload (MSDU) of
1600 bytes. Which option below most accurately describes how the access point handles this Data frame?

• A.The access point drops the frame.
• B.The access point removes the 802.11 header and replaces it with an 802.3 LLC/SNAP header that allows it to forward the frame to the destination station.
• C.The access point fragments the frame into two standard 802.3 frames and forwards both fragments to the destination station.
• D.The access point uses 802.1h frame translation to compress the 802.11 frame payload into the 802.3 frame payload.
• E.The access point removes the 802.11 header and replaces it with an RFC 1042 compliant 802.3 header. It then forwards the frame to the destination station.

When RTS/CTS is used in DCF mode, what is the frame exchange sequence between two wireless stations including interframe spaces?

• A.DIFS-RTS-CTS-SIFS-ACK-DATA-SIFS-ACK
• B.DIFS-RTS-ACK-CTS-ACK-DATA-SIFS-ACK
• C.DIFS-RTS-SIFS-CTS-SIFS-DATA-SIFS-ACK
• D.PIFS-RTS-SIFS-CTS-SIFS-DATA-SIFS-ACK
• E.EIFS-RTS-CTS-SIFS-DATA-SIFS-ACK