CH1- INTRODUCTION TO COMPUTER
NETWORKS AND DATA
COMMUNICATIONS EXAM QUESTIONS
AND ANSWERS
Client/Server System - Answer-A distributed computing system consisting of a server
and one or more clients that request information from the server.
Computer Terminal - Answer-A relatively non-intelligent device that allows a user to
input data into a system or displays data from the system.
Protocol - Answer-A set of hardware and/or software procedures that allows
communication to take place within a computer or through a computer network.
Network Architecture - Answer-A template that outlines the layers of hardware and
software operations for a computer network and its applications.
TCP/IP Protocol Suite - Answer-A model of communications architecture that
incorporate the TCP/IP protocols and has surpassed the OSI model in popularity and
implementation.
Open Systems Interconnection (OSI) Model - Answer-A template that consists of seven
layers and defines a model for the operations performed on a computer network.
Application Layer - Answer-The topmost layer in the OSI model and the TCP/IP protocol
suite; where the network application resides.
Hypertext Transfer Protocol (HTTP) - Answer-An Internet protocol that allows Web
browsers and servers to send and receive World Wide Web pages.
Simple Mail Transfer Protocol (SMTP) - Answer-An internet protocol for sending and
receiving e-mail.
Telnet - Answer-A terminal emulation program for TCP/IP networks, such as the
Internet, that allows users to log in to a remote computer.
Simple Network Management Protocol (SNMP) - Answer-An industry standard created
by the internet Engineering Task Force; it was originally designed to manage Internet
components, but is now also used to manage wide area network and
telecommunications systems.
NETWORKS AND DATA
COMMUNICATIONS EXAM QUESTIONS
AND ANSWERS
Client/Server System - Answer-A distributed computing system consisting of a server
and one or more clients that request information from the server.
Computer Terminal - Answer-A relatively non-intelligent device that allows a user to
input data into a system or displays data from the system.
Protocol - Answer-A set of hardware and/or software procedures that allows
communication to take place within a computer or through a computer network.
Network Architecture - Answer-A template that outlines the layers of hardware and
software operations for a computer network and its applications.
TCP/IP Protocol Suite - Answer-A model of communications architecture that
incorporate the TCP/IP protocols and has surpassed the OSI model in popularity and
implementation.
Open Systems Interconnection (OSI) Model - Answer-A template that consists of seven
layers and defines a model for the operations performed on a computer network.
Application Layer - Answer-The topmost layer in the OSI model and the TCP/IP protocol
suite; where the network application resides.
Hypertext Transfer Protocol (HTTP) - Answer-An Internet protocol that allows Web
browsers and servers to send and receive World Wide Web pages.
Simple Mail Transfer Protocol (SMTP) - Answer-An internet protocol for sending and
receiving e-mail.
Telnet - Answer-A terminal emulation program for TCP/IP networks, such as the
Internet, that allows users to log in to a remote computer.
Simple Network Management Protocol (SNMP) - Answer-An industry standard created
by the internet Engineering Task Force; it was originally designed to manage Internet
components, but is now also used to manage wide area network and
telecommunications systems.
