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Zorluk: OrtaWired and Wireless Network Issues

A network technician is deployed to a branch office to resolve two network issues reported after a recent reconfiguration:

1. Laptops connected to a 2.4 GHz wireless access point (AP) experience high packet loss and poor throughput when operating near an AP configured on channel 3.
2. A newly deployed wired workstation displays an IP address of 169.254.10.15169.254.10.15 and cannot communicate with any internal network servers.

Which of the following actions should the technician take to resolve these issues? (Select TWO.)

  1. Reconfigure the access point operating on channel 3 to use a non-overlapping channel such as 1, 6, or 11.Cevap
  2. Verify the physical cable connection and check the DHCP server status for the wired workstation's subnet.Cevap
  3. C
    Update the local DNS server records to assign a valid dynamic IP address lease to the wired workstation.
  4. D
    Increase the wireless channel bandwidth on the 2.4 GHz access point from 20 MHz to 40 MHz.

Cevap

The technician should reconfigure the wireless access point operating on channel 3 to use a non-overlapping channel (1, 6, or 11) and verify physical cabling/DHCP server reachability for the wired workstation.
Reconfiguring the access point from channel 3 to channel 1, 6, or 11 eliminates adjacent channel overlap in 2.4 GHz wireless networks. Additionally, inspecting physical cabling and DHCP server functionality addresses the root cause of an APIPA self-assignment (169.254.x.x169.254.x.x) on the wired workstation.

Adım Adım Çözüm

1
Analyze the 2.4 GHz wireless interference issue.
Recognize that channel 3 overlaps with channels 1 and 6 in the 2.4 GHz spectrum.
Standard 2.4 GHz Wi-Fi channels require 20 MHz spacing; only channels 1, 6, and 11 avoid adjacent channel interference.
2
Analyze the wired workstation IP addressing issue.
Identify 169.254.10.15169.254.10.15 as an APIPA address assigned automatically by the host operating system.
APIPA addresses in the range 169.254.0.1169.254.0.1 to 169.254.255.254169.254.255.254 signify that the host could not reach a functional DHCP server.
3
Select the appropriate remedial actions for both issues.
Choose non-overlapping channel reassignment for the AP and physical link/DHCP server verification for the wired host.
These steps address the root causes of co-channel interference and failed DHCP IP assignment.

Anahtar Kavram

2.4 GHz Non-Overlapping Channels and APIPA Troubleshooting
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