Which of the following is a protocol that describes an approach to providing “streamlined” support
of OSI application services on top of TCP/IP-based networks for some constrained environments?

A.
Network News Transfer Protocol

B.
Lightweight Presentation Protocol

C.
Internet Relay Chat Protocol

D.
Dynamic Host Configuration Protocol

Explanation:

Lightweight Presentation Protocol (LPP) is a protocol that describes an approach to providing
“streamlined” support of OSI application services on top of TCP/IP-based networks for some

constrained environments. This protocol was initially derived from a requirement to run the ISO
Common Management Information Protocol (CMIP) in TCP/IP-based networks.
This protocol is designed for a particular class of OSI applications, namely those entities whose
application context includes only an Association Control Service Element (ACSE) and a Remote
Operations Service Element (ROSE).
Answer option D is incorrect. The Dynamic Host Configuration Protocol (DHCP) is a computer
networking protocol used by hosts (DHCP clients) to retrieve IP address assignments and other
configuration information. DHCP uses a client-server architecture. The client sends a broadcast
request for configuration information. The DHCP server receives the request and responds with
configuration information from its configuration database. In the absence of DHCP, all hosts on a
network must be manually configured individually – a time-consuming and often error-prone
undertaking. DHCP is popular with ISP’s because it allows a host to obtain a temporary IP
address.
Answer option A is incorrect. Answer option C is incorrect. Internet Relay Chat (IRC) is a chat
service, which is a client-server protocol that supports real-time text chat between two or more
users over a TCPIP network.