Networking - Wide Area Networks - Discussion
Discussion Forum : Wide Area Networks - Wide Area Networks (Q.No. 3)
3.
The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols, needs authentication of users connecting to the network, and since some calls will be long distance, needs callback support. Which of the following protocols is the best choice for these remote services?
Answer: Option
Explanation:
PPP is your only option, as HDLC and Frame Relay do not support these types of business requirements. PPP provides dynamic addressing, authentication using PAP or CHAP, and callback services.
Discussion:
1 comments Page 1 of 1.
Manoj said:
2 years ago
Point-to-Point Protocol (PPP) is a network communication protocol that establishes a direct connection over a physical link between two computers. It is commonly used for dial-up connections to the Internet and for virtual private networks (VPNs).
PPP is a standardized protocol, which means that it is defined by a set of rules that ensure that all implementations of the protocol can communicate with each other.
PPP is a layered protocol, which means that it is made up of several different layers, each of which performs a specific function. The three main layers of PPP are:
Link Control Layer: This layer is responsible for framing data packets, error detection, and flow control.
Network Control Layer: This layer is responsible for authentication, address negotiation, and the establishment and termination of connections.
Data Link Layer: This layer is responsible for encapsulating data packets from the network layer into frames that can be transmitted over the physical link.
PPP supports a number of different features, including:
Multiple routed protocols: PPP can be used with a variety of different network layer protocols, including IP, IPX, and AppleTalk.
Authentication: PPP supports a number of different authentication methods, including PAP, CHAP, and MS-CHAPv2.
Callback: PPP can be used to establish connections that call back to the remote user's phone number.
Compression: PPP supports a number of different compression algorithms, which can reduce the amount of data that is transmitted over the link.
Encryption: PPP supports a number of different encryption algorithms, which can protect data from being intercepted. PPP is a versatile protocol that can be used in a variety of applications. It is a popular choice for dial-up connections to the Internet, and it is also used for VPNs, leased lines, and other types of point-to-point connections.
PPP is a standardized protocol, which means that it is defined by a set of rules that ensure that all implementations of the protocol can communicate with each other.
PPP is a layered protocol, which means that it is made up of several different layers, each of which performs a specific function. The three main layers of PPP are:
Link Control Layer: This layer is responsible for framing data packets, error detection, and flow control.
Network Control Layer: This layer is responsible for authentication, address negotiation, and the establishment and termination of connections.
Data Link Layer: This layer is responsible for encapsulating data packets from the network layer into frames that can be transmitted over the physical link.
PPP supports a number of different features, including:
Multiple routed protocols: PPP can be used with a variety of different network layer protocols, including IP, IPX, and AppleTalk.
Authentication: PPP supports a number of different authentication methods, including PAP, CHAP, and MS-CHAPv2.
Callback: PPP can be used to establish connections that call back to the remote user's phone number.
Compression: PPP supports a number of different compression algorithms, which can reduce the amount of data that is transmitted over the link.
Encryption: PPP supports a number of different encryption algorithms, which can protect data from being intercepted. PPP is a versatile protocol that can be used in a variety of applications. It is a popular choice for dial-up connections to the Internet, and it is also used for VPNs, leased lines, and other types of point-to-point connections.
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