261. How many chars/sec (7b data+1 parity,1 start,1 stop) over 3200 bps?

Data Communication and Computer Networks • Data Link • UGC NET Paper 2 Computer Science DEC 2013

262. __________ is a bit-oriented protocol for point-to-point and multipoint links.

Data Communication and Computer Networks • Data Link • UGC NET Paper 2 Computer Science DEC 2013

263. When data and acknowledgement are sent in same frame, this is called

Data Communication and Computer Networks • Data Link • UGC NET Paper 2 Computer Science DEC 2013

264. Which language category does NOT refer to animation languages?

Data Communication and Computer Networks • Graphics • UGC NET Paper 2 Computer Science DEC 2013

265. Match: a.Tablet,Joystick;b.LightPen,TouchScreen;c.Locator,Keyboard;d.DataGlobe,SonicPen–i.Continuous;ii.Direct;iii.Logical;iv.3D

Data Communication and Computer Networks • Human–Computer Interaction • UGC NET Paper 2 Computer Science DEC 2013

266. For n devices, duplex links in mesh =

Data Communication and Computer Networks • Network Topologies • UGC NET Paper 2 Computer Science DEC 2013

267. Propagation time for 48 000 km at 2.4×10⁸ m/s is

Data Communication and Computer Networks • Physical Layer • UGC NET Paper 2 Computer Science DEC 2013

268. Analog signal carries 4 bits/unit; 1000 units/sec. Baud rate & bit rate are

Data Communication and Computer Networks • Physical Layer • UGC NET Paper 2 Computer Science DEC 2013

269. VLF and LF bands use _______ propagation for communication.

Data Communication and Computer Networks • Physical Layer • UGC NET Paper 2 Computer Science DEC 2013

270. True for asymmetric-key cryptography?

Data Communication and Computer Networks • Security • UGC NET Paper 2 Computer Science DEC 2013

271. Encryption/Decryption is responsibility of ______ layer.

Data Communication and Computer Networks • Security • UGC NET Paper 2 Computer Science DEC 2013

272. Which is not a field in TCP header?

Data Communication and Computer Networks • Transport Layer • UGC NET Paper 2 Computer Science DEC 2013

273. Hiding manager’s salary from Employee is ___.

Data Communication and Computer Networks • Architecture • UGC NET Paper 2 Computer Science DEC 2013

274. In ______ substitution, a plaintext char always maps to same ciphertext char.

Data Communication and Computer Networks • Cryptography • UGC NET Paper 2 Computer Science DEC 2013

275. A network schema:

Data Communication and Computer Networks • Data Models • UGC NET Paper 2 Computer Science DEC 2013

276. Which is not a DBMS type?

Data Communication and Computer Networks • DB Architectures • UGC NET Paper 2 Computer Science DEC 2013

277. IP 190.255.254.254 belongs to which class?

Data Communication and Computer Networks • IP Addressing • UGC NET Paper 2 Computer Science DEC 2013

278. In IPv4 header, which field associates fragments with original datagram?

Data Communication and Computer Networks • IP Layer • UGC NET Paper 2 Computer Science DEC 2013

279. Which normal form is adequate for usual DB design?

Data Communication and Computer Networks • Normalization • UGC NET Paper 2 Computer Science DEC 2013

280. If D₁…Dₙ are domains, a relation is any subset of:

Data Communication and Computer Networks • Relational Model • UGC NET Paper 2 Computer Science DEC 2013