Multiple choice

What function do Network Control Protocols provide for a PPP connection?

  1. To supply error detection

  2. To establish and terminate data links

  3. To provide authentication capabilities to PPP

  4. To manage network congestion and to allow quality testing of the link

  5. To allow multiple Layer 3 protocols to operate over the same physical link
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E Correct answer
Explanation

The Point-to-Point Protocol uses a family of Network Control Protocols (NCPs) to encapsulate and negotiate multiple Network Layer protocols, such as IPv4 and IPv6, over a single point-to-point link. Each network protocol has a corresponding NCP.

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