Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q3281: Fill in the blank: In IEEE 802.11, the DCF uses _______ to help prevent collisions on the wireless medium.
- A: Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)
- B: Direct Transmission Protocol
- C: Multiple Access Collision Control (MACC)
- D: Channel Access Protocol (CAP)
View Answer
A
Q3282: Which IEEE 802.11 MAC sub-layer is responsible for providing quality of service and prioritization in wireless communication?
- A: Enhanced Distribution Function
- B: Distributed Coordination Function
- C: Control Function
- D: Medium Access Control Layer
View Answer
A
Q3283: Fill in the blank: The Enhanced Distribution Function (EDCF) is an extension of _______ that prioritizes traffic for different types of services.
- A: Distributed Coordination Function
- B: Medium Access Control Layer
- C: Enhanced Quality of Service Layer
- D: Wireless Access Protocol
View Answer
A
Q3284: What is one key feature of the Enhanced Distribution Function (EDCF) in IEEE 802.11?
- A: It prioritizes data traffic based on service types
- B: Encrypts wireless transmissions
- C: Manages device authentication
- D: Allocates IP addresses for devices
View Answer
A
Q3285: Which protocol is used in IEEE 802.11 to manage access to the shared wireless medium?
- A: CSMA/CA
- B: Direct Access Control
- C: Channel Allocation Protocol
- D: Carrier Sense Access Control
View Answer
A
Q3286: Fill in the blank: The IEEE 802.11 MAC sub-layer is responsible for _______ in wireless communication.
- A: Medium access control
- B: IP address management
- C: Encryption of data
- D: Network routing
View Answer
A
Q3287: IEEE 802.11 defines two MAC sub-layers. Which one is known as PCF?
- A: Point Coordination Function
- B: Private Communication Function
- C: Primary Coordination Function
- D: Packet Control Function
View Answer
A
Q3288: What is the primary role of the Point Coordination Function (PCF) in IEEE 802.11?
- A: To manage communication in infrastructure mode
- B: To encrypt the wireless network
- C: To ensure collision-free transmission in ad hoc mode
- D: To prioritize traffic based on device types
View Answer
A
Q3289: Which function does the Point Coordination Function (PCF) serve in IEEE 802.11?
- A: It schedules data transmissions in an infrastructure mode
- B: Manages IP addresses for wireless devices
- C: Handles routing protocols for wireless devices
- D: Encrypts data during transmission
View Answer
A
Q3290: Fill in the blank: The Point Coordination Function (PCF) is designed to operate in the _______ mode of IEEE 802.11.
- A: infrastructure
- B: ad hoc
- C: hybrid
- D: networkless
View Answer
A