201. Baud rate is?

Data Communication and Computer Networks • Data transmission • UGC NET Paper 2 Computer Science DEC 2010

202. Threshold effect in demodulator is?

Data Communication and Computer Networks • Digital communications • UGC NET Paper 2 Computer Science DEC 2010

203. Frequency-shift keying used in?

Data Communication and Computer Networks • Modulation • UGC NET Paper 2 Computer Science DEC 2010

204. Bandwidth in 1 μm at λ=1 μm is?

Data Communication and Computer Networks • Optical communications • UGC NET Paper 2 Computer Science DEC 2010

205. CDMA cell uses ______ carriers of 1.25 MHz.

Data Communication and Computer Networks • Cellular Technologies • UGC NET Paper 2 Computer Science DEC 2010

206. Internet layer services include: 1. QoS 2.Routing 3.Addressing 4.Connection-oriented delivery 5.Framing

Data Communication and Computer Networks • IP Layer Functions • UGC NET Paper 2 Computer Science DEC 2010

207. Network cost is usually determined by:

Data Communication and Computer Networks • Network Economics • UGC NET Paper 2 Computer Science DEC 2010

208. End-to-end connectivity is provided at which layer?

Data Communication and Computer Networks • OSI/TCP-IP Models • UGC NET Paper 2 Computer Science DEC 2010

209. The ______ field in SNMP PDU reports an error in a response.

Data Communication and Computer Networks • SNMP Protocol • UGC NET Paper 2 Computer Science DEC 2010

210. A 1.544 Mbps leased connection is called a ______ carrier.

Data Communication and Computer Networks • WAN Technologies • UGC NET Paper 2 Computer Science DEC 2010

211. Maximum operating rate of an IR wireless LAN is:

Data Communication and Computer Networks • Wireless LANs • UGC NET Paper 2 Computer Science DEC 2010

212. To maximize ATM code brute-force time t, choose

Data Communication and Computer Networks • Authentication • UGC NET Paper 2 Computer Science DEC 2010

213. Start and stop bits in serial comms are for __.

Data Communication and Computer Networks • Data Link Layer • UGC NET Paper 2 Computer Science DEC 2010

214. A hub is used in which network topology?

Data Communication and Computer Networks • Network Topologies • UGC NET Paper 2 Computer Science DEC 2010

215. Station forwards packets to shortest output queue: which routing?

Data Communication and Computer Networks • Routing Algorithms • UGC NET Paper 2 Computer Science DEC 2010

216. Which X. standard is for packet-switched network access?

Data Communication and Computer Networks • WAN Protocols • UGC NET Paper 2 Computer Science DEC 2010

217. Process to ascertain user privileges is

Data Communication and Computer Networks • Access Control • UGC NET Paper 2 Computer Science DEC 2010

218. Correct about AM/FM bandwidth: (i) AM depends on modulating bandwidth (ii) AM depends on modulation index (iii) FM depends on carrier amplitude

Data Communication and Computer Networks • Analog Modulation • UGC NET Paper 2 Computer Science DEC 2010

219. Modulation with phase 0°,90°,180°,270° is called

Data Communication and Computer Networks • Digital Modulation • UGC NET Paper 2 Computer Science DEC 2010

220. With m=10000 and h(k)=⌊m(kA mod1)⌋, A=(√5–1)/2, h(123456)=

Data Communication and Computer Networks • Hashing • UGC NET Paper 2 Computer Science DEC 2010