A communication device that combines transmissions from several I/O devices into one line is a
A) Concentrator
B) Modifier
C) Multiplexer
D) Full duplex file

Which layers of the OSI determines the interface often system with the user?
A) Network
B) Application
C) Data link
D) Session

Which of the following of the TCP/IP protocols is the used for transferring files from one machine to another?
A) FTP
C) SNMP
B) SMTP
D) Rpe

In which OSI layers does the FDDI protocol operate?
A) Physical
B) Data link
C) Network
D) A and B

In FDDI, data normally travel on ..................
A) The primary ring
B) The Secondary ring
C) Both rings
D) Neither ring

The ............ layer of OSI model can use the trailer of the frame for error detection.
A) Physical
B) Data link
C) Transport
D) Presentation

In a ................ topology, if there are n devices in a network, each device has n-1 ports for cables.
A) Mesh
B) Star
C) Bus
D) Ring

Another name for Usenet is
A) Gopher
B) Newsgroups
C) Browser
D) CERN

The standard suit of protocols used by the Internet, Intranets, extranets and some other networks.
A) TCP/IP
B) Protocol
C) Open system
D) Internet work processor

State whether the following is True or False.
i) In bus topology, heavy Network traffic slows down the bus speed.
ii) It is multipoint configuration.
A) True, True
B) True, False
C) False, True
D) False, False

Which of the following is the logical topology?
A) Bus
B) Tree
C) Star
D) Both A and B