Free CWNP CWAP-404 Exam Dumps Questions & Answers

You are troubleshooting problems with DHCP in relation to lightweight APs. They vendor class identifier (VCI) is not specified in the DHCP server. When you contact vendor support, they inform you that it is not necessary.
When is this information true?

• A.When the DHCP server is directly connected to the subnet
• B.When only one client option 60 value is required
• C.When only one AP exists on the subnet
• D.When only one client option 43 value is required

Which statements are true regarding frame acknowledgement in an IEEE 802.11 WLAN?
(Choose
3)

• A.Following non-QoS Data frames with the More Fragments bit set to 1, the Duration/ID field of the ACK frame is set to a value equal to two SIFS plus the next Data fragment and its ACK.
• B.Data frame fragments are acknowledged individually (with an ACK frame).
• C.A client station's Reassociation Request frames are only acknowledged with a Reassociation Response from the access point and not with an ACK frame.
• D.In an EDCA BSS, encrypted Data frames are only acknowledged by client stations, never by access points.
• E.The RA field of ACK frames is always obtained from the Address 2 field in the corresponding frame being acknowledged.
• F.Probe request acknowledgement (sending of a Probe Response frame) is configurable in the access point and is always linked to SSID broadcast configuration in Beacons.

The data rate for a data frame is 150 Mbps in 5 GHz.
What rate is used to transmit the PHY header information?

• A.75 Mbps
• B.1 Mbps
• C.6 Mbps
• D.150 Mbps

What IEEE 802.11 technology is illustrated by the exhibit?

• A.A-MPDU
• B.TCP Fragment Bursting
• C.Jumbo frames
• D.Fragmentation
• E.U-APSD
• F.A-MSDU

As a WLAN consultant, you have been asked to troubleshoot a problem with a single wireless client station (Station-Z). Your customer informs you that other wireless client stations are not having problems with wireless connectivity, and that Station-Z is configured in the same manner as all other wireless client stations on the network. Station-Z is showing an unusually high retransmission count in its client utility statistics. Using a wireless protocol analyzer, where and how should you begin troubleshooting this problem? (Choose 2)

• A.Position the analyzer near Station-Z. Analyze the frames Station-Z is receiving, looking for delayed ACK frames.
• B.Position the analyzer halfway between Station-Z and the access point. Analyze the data rate at which frames are sent and how long they take to be received.
• C.Position the analyzer near Station-Z. Analyze Station-Z's transmissions and acknowledgements.
  Look for RF and obstacle-induced interference.
• D.Position the analyzer near the access point. See if Station-Z's frames are reaching the access point and if so, analyze their signal strength.
• E.Position the analyzer halfway between Station-Z and the access point. Measure the distance between Station-Z and the access point.