#1
Which of the following is a fundamental component of a Wireless Local Area Network (WLAN)?
Access Point
ExplanationCentral device facilitating wireless connectivity for devices within its range.
#2
What is the primary purpose of a Service Set Identifier (SSID) in a WLAN?
To uniquely identify a WLAN
ExplanationIt distinguishes one WLAN from another, aiding in network selection.
#3
Which IEEE standard is commonly used for WLAN communication in the 2.4 GHz band?
802.11b
ExplanationOlder standard providing compatibility and moderate data rates in the 2.4 GHz spectrum.
#4
What is the purpose of the MAC address in WLAN?
To uniquely identify each WLAN client device
ExplanationIt serves as a unique identifier for network interface controllers.
#5
What is the purpose of beacon frames in a WLAN?
To advertise network presence and capabilities
ExplanationThey announce the existence of a WLAN and provide essential parameters.
#6
Which of the following authentication methods is commonly used in WLANs to ensure secure access?
WPA2
ExplanationProvides robust encryption and authentication for WLANs.
#7
Which frequency band is commonly used for WLAN communication in the 5 GHz range?
5.8 GHz
ExplanationPart of the 5 GHz spectrum designated for WLAN communication.
#8
What is the purpose of a Basic Service Set (BSS) in WLAN?
To define the coverage area of an access point
ExplanationDefines the area where devices can communicate directly with a single access point.
#9
What is the function of CSMA/CA in WLAN?
To coordinate access to the wireless medium
ExplanationPrevents collisions by ensuring devices only transmit when the medium is free.
#10
What is the function of the Distribution System (DS) in WLAN architecture?
To connect multiple access points together
ExplanationFacilitates communication between access points and network infrastructure.
#11
What is a potential advantage of using MIMO technology in WLAN?
Higher data rates
ExplanationEnhances throughput by transmitting multiple data streams simultaneously.
#12
What is the purpose of the Distribution System Coordination Function (DSCF) in WLAN?
To manage the distribution of data frames among access points
ExplanationCoordinates the flow of data between different access points.
#13
What is a disadvantage of using the 2.4 GHz frequency band for WLAN?
Higher susceptibility to interference
ExplanationCrowded spectrum prone to interference from other devices.
#14
What is the primary purpose of a Wireless Distribution System (WDS) in WLAN architecture?
To extend wireless coverage
ExplanationConnects multiple access points wirelessly to expand network coverage.