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Which of the following is the primary goal of access control at the Data Link Layer in shared media networks?

• Error Detection

• Flow Control

• Preventing Collisions

• Encryption

What happens when a collision is detected in a network using CSMA/CD?

• The receiving device requests retransmission.

• The data is automatically corrected.

• The transmitting devices stop and send a jam signal.

• The network administrator is notified.

What is the primary purpose of a checksum?

• Error detection.

• Flow control.

• Addressing

• Encryption

What is the primary problem addressed by the "Count to Infinity" issue?

• Network congestion due to excessive data traffic

• Routing loops forming for unreachable destinations in distance-vector protocols

• Security vulnerabilities in routing protocols

• Inefficient allocation of IP addresses

What is the main purpose of the Internet Group Management Protocol (IGMP)?

• To assign IP addresses to network devices

• To ensure reliable delivery of data packets

• To translate domain names to IP addresses

• To manage multicast group memberships

What is the primary purpose of Telnet?

• Transferring files

• Remote command-line access

• Browsing web pages

• Sending email

Which part of a typical network frame contains the destination address?

• Data payload

• Trailer

• Checksum

• Header

What is the purpose of the trailer in some network frames?

• For error detection.

• To specify the frame type.

• To carry the main data.

• To indicate the start of the frame.

Which of the following is a common cause of signal attenuation during data transmission?

• Distance

• Bandwidth

• Protocol

• Encryption

Which of the following is an example of a guided transmission medium?

• Radio waves

• Infrared

• Microwaves

• Fiber optic cable