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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Which command is used to apply the encapsulation type for PPP on an interface?

encapsulation ppp
ppp encapsulation
set encapsulation ppp
interface ppp encapsulation

The correct answer is: encapsulation ppp

The command "encapsulation ppp" is the correct command to apply the encapsulation type for Point-to-Point Protocol (PPP) on an interface. This command is essential for configuring the data link layer of the network and allows the router to understand that the interface will use PPP for encapsulating the network layer packets. When this command is executed in the interface configuration mode, it tells the device to treat the frames on that interface according to the PPP protocol, which is commonly used for direct connections between two network nodes, such as routers. The other commands do not represent valid configuration commands in Cisco IOS for setting PPP encapsulation on an interface. Each of those options either uses an incorrect syntax or an invalid ordering of terms that does not match the Cisco command structure, making them unsuitable for configuring PPP encapsulation. Therefore, the straightforward command "encapsulation ppp" is not only correct but also aligns with the conventions used in Cisco networking configurations.