Which Of The Following Is A Common Layer 2 Protocol That Could Run Over A Dedicated Leased Line?

Which of the following is a common Layer 2 protocol that could run over a dedicated leased line?

Answer: Point-to-Point Protocol (PPP) is the common Layer 2 protocol that can operate over a dedicated leased line.

The communication channel whose work is to interconnect more than two sites is known as the leased line and it is dedicated. It is the private circuit at more than two places according to the commercial contract, Between the client and the provider, it is the service agreement. as it is dedicated that’s why the data transfer continuously from one point to the other with a fixed speed and charge every month. Internet, telephones service uses the leased lines and the communication medium is the fiber optics cable for the greater speed and the bandwidth.

It is not entirely the dedicated channels or physical connection, a reserved circuit of the two open points. As compared to the telephone services which do not use the same circuit in a switching. A large organization that required fast speed uses the leased line for the connection of more than one site. as they are used by the large communication companies which means it is quite expensive, and the alternate of this is the publics’ telephone or networks instead to use the security protocols and install and control the costly private lines. The dedicated leased line characteristics are discussed in the following:

• It can interconnect two sites and the connection is established connection with the service provider’s facility or CO (telephone company control office).
• It is more costly than the WAN technology that provides the same data rates but in the dedicated line, the network is the private client does not have to share the bandwidth with others.
• The layer 2 protocol of the dedicated leased line is PPP (Point-to-point protocol).
• The dedicated leased line is commonly found in North America.