121. x = at2; y = 2at, is the parametric equation of a/an
A. circle
B. rectangular hyperbola
C. parabola
D. ellipse

Explanation :
Standard equation of a parabola is y2 = 4ax. Put x= at2 and solve for y.

122. Oblique projection with an angle of 45° to the horizontal plane is called as
A. cabinet projection
B. cavalier projection
C. isometric projection
D. none of the above

123. Which of the following is possible in a token passing bus network ?
A. in-service expansion
B. unlimited number of stations
C. both (a) and (b)
D. unlimited distance

124. In networking terminology UTP means
A. Unshielded Twisted pair
B. Ubiquitous Teflon port
C. Uniformly Terminating port
D. Unshielded T-connector port

125. Simple network management protocol (SNMP) is implemented with a daughter board in
A. the nodes
B. the server
C. the hubs
D. a separate PC that manages the network

126. The amount of uncertainty in a system of symbol is called
A. Bandwidth
B. Entropy
C. Loss
D. Quantum

127. Working of the WAN generally involves
A. telephone lines
B. micro waves
C. satellites
D. All of these

128. Different computers are connected to a LAN by a cable and
A. modem
B. interface card
C. special wires
D. telephone lines

129. Modem is used in data transmission. When was it involved and in which country ?
A. 1963, USA
B. 1965, Germany
C. 1950, USA
D. 1950, Japan

130. Fibre optics have maximum segment
A. 500 m
B. 200 m
C. 100 m
D. 2000 m