Cisco Certified Network Associate (CCNA) Practice Exam

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Study for the Cisco Certified Network Associate (CCNA) exam with our comprehensive quiz featuring multiple-choice questions and detailed explanations. Prepare effectively and enhance your understanding of networking concepts!

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How is the PPP encapsulation enabled on a PPPoE dialer interface?

encapsulation ppp
ppp enable
enable ppp encapsulation
switch ppp encapsulation

The correct answer is: encapsulation ppp

Enabling PPP encapsulation on a PPPoE (Point-to-Point Protocol over Ethernet) dialer interface is accomplished by using the command "encapsulation ppp." This command specifically instructs the router to use PPP as the encapsulation method for the interface. PPP is a widely used data link layer protocol that provides features such as encapsulation of network layer protocols and a method for authentication. The other options do not accurately represent the command syntax needed to enable PPP encapsulation on a PPPoE dialer interface. While they may seem vaguely related to configuring protocols or interfaces, they do not conform to the standard command structure required in Cisco’s IOS. Understanding the correct command syntax is essential for configuring network devices appropriately and ensuring proper communication between them.