Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q3301: Which layer of IEEE 802.11 does the Point Coordination Function (PCF) belong to?
- A: Medium Access Control Layer
- B: Physical Layer
- C: Network Layer
- D: Application Layer
View Answer
A
Q3302: Fill in the blank: The Point Coordination Function (PCF) in IEEE 802.11 can be used for _______ in wireless networks.
- A: Providing contention-free access
- B: Enhancing routing protocols
- C: Encrypting data across the network
- D: Transmission over physical channels
View Answer
A
Q3303: Which of the following is NOT a type of frame in IEEE 802.11?
- A: Management Frame
- B: Data Frame
- C: Control Frame
- D: Information Frame
View Answer
D
Q3304: The frequency range 902–928 MHz is part of the _______ band.
- A: Industrial, Scientific, and Medical (ISM)
- B: Commercial Radio Band
- C: WiFi Band
- D: High-Frequency Band
View Answer
A
Q3305: Which frame type in IEEE 802.11 is used for communication between stations?
- A: Management Frame
- B: Control Frame
- C: Data Frame
- D: Packet Frame
View Answer
C
Q3306: The 2.400–4.835 GHz frequency range is used in which of the following bands?
- A: ISM Band
- B: WiFi Band
- C: 4G Band
- D: 5G Band
View Answer
A
Q3307: Fill in the blank: The 5.725–5.850 GHz frequency range is used in the _______ band.
- A: ISM Band
- B: WiFi Band
- C: 5G Band
- D: Unlicensed Band
View Answer
A
Q3308: Which of the following is a characteristic of the physical layer in wireless communication?
- A: It determines the type of data frames used
- B: It defines the frequency bands for transmission
- C: It handles error correction
- D: It performs packet routing
View Answer
B
Q3309: Fill in the blank: IEEE 802.11 defines _______ as a communication frame used for controlling access to the medium.
- A: Control Frames
- B: Management Frames
- C: Data Frames
- D: Information Frames
View Answer
A
Q3310: Which of the following bands is used for most IEEE 802.11 wireless devices?
- A: 902–928 MHz
- B: 2.400–4.835 GHz
- C: 5.725–5.850 GHz
- D: High-Frequency Band
View Answer
B