CWS CWS Network Performance & Optimization

Question 1

What is the primary cause of the 'sticky client' problem in WLANs?

Accepted Answer

Clients holding onto a weak AP association instead of roaming to a stronger AP

Answer

Clients connecting to hidden SSIDs

Answer

Duplicate IP address conflicts

Answer

DNS resolution failures

Question 2

Which 802.11 feature helps manage sticky clients by encouraging them to roam to better APs?

Accepted Answer

BSS Transition Management (802.11v)

Answer

WPA3

Answer

802.1X authentication

Answer

WMM (Wi-Fi Multimedia)

Question 3

What does SNR (Signal-to-Noise Ratio) measure in a wireless network?

Accepted Answer

The difference in dB between the desired signal level and the noise floor

Answer

The ratio of AP transmit power to client receive power

Answer

The percentage of bandwidth used by noise traffic

Answer

The number of clients per AP

Question 4

What is the effect of enabling band steering on a dual-band AP?

Accepted Answer

It encourages capable clients to connect on the 5 GHz band to reduce 2.4 GHz congestion

Answer

It disables the 2.4 GHz radio entirely

Answer

It bonds both bands into a single channel

Answer

It increases transmit power on both bands

Question 5

A wireless client is experiencing intermittent disconnections during peak hours. What is the most likely cause?

Accepted Answer

AP overload due to too many associated clients or high channel utilization

Answer

Incorrect DNS server settings

Answer

Incorrect subnet mask

Answer

DHCP pool exhaustion on IPv6

Question 6

What is the role of QoS (Quality of Service) in a wireless network?

Accepted Answer

To prioritize certain traffic types (e.g., VoIP, video) to reduce latency and jitter

Answer

To encrypt wireless traffic

Answer

To assign static IP addresses to clients

Answer

To manage VLAN tagging on wired uplinks only