Q1. The main function of adding the trailer information by the data link layer encapsulation.
A. Ensures ordered arrival of data
B. Supports error detection
C. Identifies the devices on the local network
D. Provides delivery to correct destination
Answer: B. Supports error detection
Q2. Which of the following guided media offers the highest bandwidth?
A. Flat cable
B. STP cable
C. Co-axial cable
D. UTP cable
Answer: C. Co-axial cable
Q3. Star topology is characterized by:
A. If the central hub goes down, the communications in the other devices couldn't be affected
B. One long cable acts as a backbone to link all the devices in a network
C. The devices are not directly linked to one another.
D. Every device has a dedicated point-to-point link to every other device
Answer: C. The devices are not directly linked to one another.
Q4. IGMP is used for: