70351. Transistor T1 operates at 30 kHz and T2 operates at 300 Hz. The flicker noise is
70352. The buffer overflow attack is caused by
70353. A tape recorder and deck are entirely similar.
70354. Which of the following is not valid IPv4 addresses?
70355. Assertion (A): SSB systems generally have duplex operationReason (R): SSB systems are generally used in two way communication.
70356. Which of the following is an indirect way of generating FM?
70357. When the length of antenna is a whole wavelength
70358. Circular polarization
70359. An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
70360. If S represents the carrier synchronization at the receiver and r represents the bandwidth efficiency, then the correct statement for the coherent binary PSK is
70361. For telegraphy the most commonly used modulation system is
70362. Commercial Frequency deviation of FM is
70363. The colour of an object is decided by
70364. In Pulse Code Modulation system
70365. Waveform shown in figure is that for
70366. Human ear can detect sound intensities of the order of
70367. If output power of a radio receiver is doubled, its volume is increased by __________ dB.
70368. Address resource records are associated with
70369. Which of the following protocols is used in accessing web mail?
70370. To eliminate ghosts in the picture
70371. Consider a sampled signal y(t) = 5 x 10-6 x(t) where x(t) = 10 cos (8p x 103)t and t s = 100 μ sec. when y(t) is passed through an ideal low-pass filter with a cut off frequency of 5 kHz, the output of the filter is
70372. The frequency range of 300 kHz to 3000 kHz is known as
70373. Which of the following does not cause losses in optical fibre cables?
70374. For a low level AM system, the amplifiers modulated stage must be
70375. Assertion (A): In FM the frequency of the carrier is varied by the modulating voltageReason (R): FM and PM are two forms of angle modulation.
70376. A cordless telephone using separate frequencies for transmission in base and portable units is known as
70377. For attenuation of high frequencies we should use
70378. A modem is classified as low speed if data rate handled is
70379. VSB modulation is preferred in TV because
70380. A woofer should be fed from the input through a
70381. If gcd(a,b)=x and gcd(b,c)=y,then gcd(a,c)is
70382. Assuming the same key is used,two occurrences of the same plaintext characters are encrypted as identical output symbols in which of the following
70383. A product cipher is constructed using a combination of
70384. Which of the following characteristics is most widely used in fingerprint recognition?
70385. During the initial stages of an attack by a new internet scanning worm,the number of infected machines increases
70386. A device which converts BCD to seven segment is called
70387. In 2's complement representation the number 11100101 represents the decimal number
70388. A decade counter skips
70389. BCD input 1000 is fed to a 7 segment display through a BCD to 7 segment decoder/driver. The segments which will lit up are
70390. A ring counter with 5 flip flops will have
70391. For the gate in the given figure the output will be
70392. In the expression A + BC, the total number of minterms will be
70393. Use privileges in windows are stored in
70394. Which of the following is non-saturating?
70395. The number of digits in octal system is
70396. The access time of a word in 4 MB main memory is 100 ms. The access time of a word in a 32 kb data cache memory is 10 ns. The average data cache bit ratio is 0.95. The efficiency of memory access time is
70397. The expression Y = p M (0, 1, 3, 4) is
70398. An 8 bit DAC has a full scale output of 2 mA and full scale error of ± 0.5%. If input is 10000000 the range of outputs is
70399. Decimal 43 in hexadecimal and BCD number system is respectively.
70400. The circuit of the given figure realizes the function
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