Peter works as a Network Administrator for Net World Inc.
The company wants to allow remote users to connect and access its private network through a dial-up connection via the Internet.
All the data will be sent across a public network.
For security reasons, the management wants the data sent through the Internet to be encrypted.
The company plans to use a Layer 2 Tunneling Protocol (L2TP) connection.
Which communication protocol will Peter use to accomplish the task?
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A. B. C. D.A.
To allow remote users to connect and access the private network via a dial-up connection through the internet, the company needs to provide secure and encrypted communication. The Layer 2 Tunneling Protocol (L2TP) is a standard protocol used for virtual private network ( VPN) connections. It combines the features of Point-to-Point Tunneling Protocol (PPTP) and Layer 2 Forwarding Protocol (L2F).
L2TP does not provide encryption by itself, so it needs to be used in conjunction with an encryption protocol to secure the data. Therefore, to accomplish the task, Peter needs to select an encryption protocol that can be used with L2TP.
Out of the given options, the most suitable encryption protocol for this task is Microsoft Point-to-Point Encryption (MPPE) which is widely used with L2TP VPN connections. MPPE is a protocol that encrypts the data that is sent over a PPP (Point-to-Point Protocol) connection. MPPE uses RC4 encryption with a 128-bit key to encrypt the data, making it difficult for attackers to intercept and read the data.
IP Security (IPSec) is another popular encryption protocol that can be used to secure L2TP connections. It provides encryption and authentication of IP packets, making it ideal for securing communications over public networks. However, it is mainly used with IP-based VPNs, and L2TP is not an IP-based protocol.
Pretty Good Privacy (PGP) is a public-key encryption protocol that is mainly used for securing email communications. It is not suitable for securing VPN connections.
Data Encryption Standard (DES) is a symmetric encryption algorithm that uses a 56-bit key to encrypt the data. However, DES is not considered secure for modern encryption standards as it is vulnerable to brute force attacks.
Therefore, the correct answer is B. Microsoft Point-to-Point Encryption (MPPE).