Which of the following is a computer networking protocol used by hosts to retrieve IP address
assignments and other configuration information?

A.
SNMP

B.
ARP

C.
DHCP

D.
Telnet

Explanation:

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 timeconsuming and often error-prone undertaking. DHCP is popular with ISP’s because it allows a
host to obtain a temporary IP address.
Answer option B is incorrect. Address Resolution Protocol (ARP) is a network maintenance
protocol of the TCP/IP protocol suite. It is responsible for the resolution of IP addresses to media
access control (MAC) addresses of a network interface card (NIC). The ARP cache is used to
maintain a correlation between a MAC address and its corresponding IP address. ARP provides
the protocol rules for making this correlation and providing address conversion in both directions.
ARP is limited to physical network systems that support broadcast packets.
Answer option A is incorrect. The Simple Network Management Protocol (SNMP) allows a
monitored device (for example, a router or a switch) to run an SNMP agent. This protocol is used
for managing many network devices remotely.
When a monitored device runs an SNMP agent, an SNMP server can then query the SNMP agent
running on the device to collect information such as utilization statistics or device configuration
information. An SNMP-managed network typically consists of three components: managed
devices, agents, and one or more network management systems.
Answer option D is incorrect. Telnet (Telecommunication network) is a network protocol used on
the Internet or local area networks to provide a bidirectional interactive communications facility.
Typically, Telnet provides access to a command-line interface on a remote host via a virtual
terminal connection which consists of an 8-bit byte oriented data connection over the
Transmission Control Protocol (TCP). User data is interspersed in-band with TELNET control
information. Typically, the Telnet protocol is used to establish a connection to Transmission
Control Protocol (TCP) port number 23.