A single 802.11g access point has been configured and installed in the center of a square office. A
few wireless users are experiencing slow performance and drops while most users are operating
at peak efficiency. What are three likely causes of this problem? (Choose three.)
A.
mismatched TKIP encryption
Cordless phones may interfere in wireless NIC.
Send a TCP SYN and wait for the SYN ACK with the IP address of Host B.
B.
null SSID
mismatched SSID
SSID(Service Set Identifier)can also be written as ESSID, which is used to distinguish different
networks and has 32 characters at most , WLAN cards set up different SSID to enter different
networks. SSID is usually broadcast by AP, you can view SSID of the present area through XP
built-in scanning feature .Taking security into consideration, SSID can be not broadcast,
meanwhile users need to set up SSID manually to enter the appropriate network. In simple terms,
SSID is the name of a local area network; only those computers that set up the same SSID values
can communicate with each other. If SSID fails to match, wireless will fail in connection, and no
wireless network inefficiency will appear.
Drop the data.
C.
cordless phones
metal file cabinets may have a certain amount of shielding
Create an ARP request to get a MAC address for Host B.
D.
mismatched SSID
antenna type or direction
QUESTION 31
Given that Host A and Host B are in different networks. When Host A is trying to communicate with
Host B, which step will Host A take first?
Send the data frames to the default gateway.
E.
metal file cabinets
F.
antenna type or direction
A.
mismatched TKIP encryption
Cordless phones may interfere in wireless NIC.
Send a TCP SYN and wait for the SYN ACK with the IP address of Host B.
B.
null SSID
mismatched SSID
SSID(Service Set Identifier)can also be written as ESSID, which is used to distinguish different
networks and has 32 characters at most , WLAN cards set up different SSID to enter different
networks. SSID is usually broadcast by AP, you can view SSID of the present area through XP
built-in scanning feature .Taking security into consideration, SSID can be not broadcast,
meanwhile users need to set up SSID manually to enter the appropriate network. In simple terms,
SSID is the name of a local area network; only those computers that set up the same SSID values
can communicate with each other. If SSID fails to match, wireless will fail in connection, and no
wireless network inefficiency will appear.
Drop the data.
C.
cordless phones
metal file cabinets may have a certain amount of shielding
Create an ARP request to get a MAC address for Host B.
D.
mismatched SSID
antenna type or direction
QUESTION 31
Given that Host A and Host B are in different networks. When Host A is trying to communicate with
Host B, which step will Host A take first?
Send the data frames to the default gateway.
A.
mismatched TKIP encryption
Cordless phones may interfere in wireless NIC.
Send a TCP SYN and wait for the SYN ACK with the IP address of Host B.
B.
null SSID
mismatched SSID
SSID(Service Set Identifier)can also be written as ESSID, which is used to distinguish different
networks and has 32 characters at most , WLAN cards set up different SSID to enter different
networks. SSID is usually broadcast by AP, you can view SSID of the present area through XP
built-in scanning feature .Taking security into consideration, SSID can be not broadcast,
meanwhile users need to set up SSID manually to enter the appropriate network. In simple terms,
SSID is the name of a local area network; only those computers that set up the same SSID values
can communicate with each other. If SSID fails to match, wireless will fail in connection, and no
wireless network inefficiency will appear.
Drop the data.
C.
cordless phones
metal file cabinets may have a certain amount of shielding
Create an ARP request to get a MAC address for Host B.
D.
mismatched SSID
antenna type or direction
QUESTION 31
Given that Host A and Host B are in different networks. When Host A is trying to communicate with
Host B, which step will Host A take first?
Send the data frames to the default gateway.
Explanation:
The answer “Create an ARP request to get a MAC address for Host B.” is NOT correct, the host
will know if the destination is not on the local network and will send to MAC address of its default
gateway setting, it will not ARP for MAC address of remote destination.