Description : In Manchester encoding, does a low-to-high light level transition occurring in the middle of the bit duration represent a binary 1 or a binary 0?
Last Answer : Binary 0.
Description : In______, the changeor lackof change in the level of the voltagedetermines the value of the bit. A) NRZ-I B) NRZ-L C) both (a)and (b) D) neither (a) nor (b)
Last Answer : NRZ-I
Description : In_____, the level of the voltagedetermines the valueof the bit. A) NRZ-I B) NRZ-L C) both (a) and (b) D) neither (a) nor (b)
Last Answer : NRZ-L
Description : The transformer signal coding method for T1 carrier is A. Binary B. NRZ C. Manchester D. Bipolar
Last Answer : D. Bipolar
Description : The transmission signal coding method of TI carrier is called a. Bipolar b. NRZ c. Manchester d. Binary
Last Answer : Bipolar
Description : How can the loss of timing occur in NRZ line coding?
Last Answer : If long strings of 1s or 0s are present causing a lack of level transitions.
Description : What are the four widely used variations of the NRZ encoding method?
Last Answer : a. Non-return-to-zero level (NRZ-L). b. Enhanced non-return-to-zero level (E-NRZ-L). c. Non-return-to-zero mark (NRZ-M). d. Non-return-to-zero space (NRZ-S).
Description : Binary code "0" means ............ A) State of absence B) State of presence C) State of Negative D) State of Positive
Last Answer : B) State of presence
Description : In_______encoding, the duration of the bit is divided into twohalves. Thevoltage remains at one level during thefirst half and moves to the other level in the second half. The transition at the middle of the bit ... Manchester B) differential Manchester C) both (a) and (b) D) neither (a) nor (b)
Last Answer : both (a) and (b)
Description : If a modulating wave is sampled 10 times per cycle with a 5-element binary code, how many bits of information are required to transmit the signal?
Last Answer : 28. 50.
Description : EBCDIC stands for A) Extended Binary Coded Decimal Interchange Code B) Extended Bit Code Decimal Interchange Code C) Extended Bit Case Decimal Interchange Code D) Extended Binary Case Decimal Interchange Code
Last Answer : Answer : A
Description : Instructions and memory address are represented by A) Character code B) Binary codes C) Binary word D) Parity bit
Last Answer : Answer : B
Description : ASCII and EBCDIC are the popular character coding systems. What does EBCDIC stand for? A) Extended Binary Coded Decimal Interchange Code B) Extended Bit Code Decimal Interchange Code C) Extended Bit Case Decimal Interchange Code D) Extended Binary Case Decimal Interchange Code
Description : Instructions and memory address are represented by a. Character code b. Binary codes c. Binary word d. Parity bit
Last Answer : Binary codes
Description : EBCDIC stands for a. Extended Binary Coded Decimal Interchange Code b. Extended Bit Code Decimal Interchange Code c. Extended Bit Case Decimal Interchange Code d. Extended Binary Case Decimal Interchange Code
Last Answer : Extended Binary Coded Decimal Interchange Code
Description : EBCDIC stands for a) Extended Binary Coded Decimal Interchange Code b) Extended Bit Code Decimal Interchange Code c) Extended Bit Case Decimal Interchange Code d) Extended Binary Case Decimal Interchange Code
Last Answer : a) Extended Binary Coded Decimal Interchange Code
Last Answer : b. Binary codes
Last Answer : a. Extended Binary Coded Decimal Interchange Code
Description : The code where all successive numbers differ from their preceding number by single bit is (A) Binary code. (B) BCD. (C) Excess – 3. (D) Gray.
Last Answer : Ans: D The code where all successive numbers differ from their preceding number by single bit is Gray Code. (It is an unweighted code. The most important characteristic of this code is that only a single bit change occurs when going from one code number to next.)
Description : The Excess-3 decimal code is a self-complementing code because (A) The binary sum of a code and its 9’s complement is equal to 9. (B) It is a weighted code. (C) Complement can be generated by inverting each bit pattern. (D) The binary sum of a code and its 10’s complement is equal to 9.
Last Answer : Answer: A, C
Description : By using an 8-bit code, how many characters or bit combinations can be represented?
Last Answer : 256.
Description : If the length of the fiber point defect changes with pulse duration, is the OTDR signal deviation a point defect or a region of high fiber attenuation?
Last Answer : A point defect.
Description : A base-16 number system that uses sixteen distinct symbols 0-9 and A-F to represent numbers from 0 to 15. A. Binary B. Decimal C. Hexadecimal D. Hepadeximal
Last Answer : A. Binary
Description : The least significant bit of the binary number, which is equivalent to any odd decimal number, is: A) 0 B) 1 C) 1 or 0 D) 3
Description : The least significant bit of the binary number, which is equivalent to any odd decimal number, is: a. 0 b. 1 c. 1 or 0 d. 3
Last Answer : a. 0
Description : Which edges of the pulse can be modulated in pulse duration modulation?
Last Answer : Either, or both at the same time.
Description : Consider a 32 - bit microprocessor, with a 16 - bit external data bus, driven by an 8 MHz input clock. Assume that the microprocessor has a bus cycle whose minimum duration equals four input clock cycles. What ... (A) 8x106 bytes/sec (B) 4x106 bytes/sec (C) 16x106 bytes/sec (D) 4x109 bytes/sec
Last Answer : (B) 4x106 bytes/sec
Description : 1000Base-SX, 1000Base-LX, and 1000Base-CX use _________ block coding and ________ line coding. A) 4B/5B; NRZ B) 8B/10B; NRZ C) 4B/5B; MLT-3 D) 8B/10B; NRZ
Last Answer : 8B/10B; NRZ
Description : 100Base-T4 uses________line coding. A) NRZ B) 8B6T C) MLT-3 D) Manchester
Last Answer : 8B6T
Description : 100Base-FX uses_________ block coding and ________ linecoding. A) 4B/5B; NRZ-I B) 8B/10B; NRZ C) 4B/5B; MLT-3 D) 8B/10B; NRZ
Last Answer : 4B/5B; NRZ-I
Description : 100Base-TX uses_________ block coding and ________ linecoding. A) 4B/5B; NRZ B) 8B/10B; NRZ C) 4B/5B; MLT-3 D) 8B/10B; NRZ
Last Answer : 4B/5B; MLT-3
Description : Standard Ethernet (10-Mbps) uses_______ encoding A) NRZ B) AMI C) Manchester D) differential Manchester
Last Answer : Manchester
Description : The minimum bandwidth of Manchester and differential Manchester is ____that of NRZ. A) the sameas B) twice C) thrice D) none of the above
Last Answer : twice
Description : The idea of RZ andthe ideaof NRZ-I are combined into the ________ scheme. A) Manchester B) differential Manchester C) both (a) and (b) D) neither (a) nor (b)
Last Answer : differential Manchester
Description : The idea of RZ andthe ideaof NRZ-L are combined into the ________ scheme. A) Manchester B) differential Manchester C) both (a) and (b) D) neither (a) nor (b)
Description : Two common scramblingtechniques are ________. A) NRZ and RZ B) AMI and NRZ C) B8ZS and HDB3 D) Manchester and differential Manchester
Last Answer : B8ZS and HDB3
Description : Which encoding method uses alternating positive and negative values for1s? A) NRZ-I B) RZ C) Manchester D) AMI
Last Answer : AMI
Description : Which of the following encoding methods does not provide for synchronization? A) NRZ-L B) RZ C) NRZ-I D) Manchester
Description : Unipolar, bipolar, and polar encoding are typesof _______ encoding. A) line B) block C) NRZ D) Manchester
Last Answer : line
Description : For the duration of the existence of the internet, there was an organization that was universal, whose presence was indivisible from the possibility that it was intended to deal with the web?
Last Answer : For the duration of the existence of the internet, there was an organization that was universal, whose presence was indivisible from the possibility that it was intended to deal with the web. While this ... the recognizable "you have mail" voice at whatever point an email is conveyed to your inbox.
Description : A software company needs to develop a project that is estimated as 1000 function points and is planning to use JAVA as the programming language whose approximate lines of code per function point is accepted as 50. Considering a=1. ... ? (1) 11.2 months (2) 12.2 months (3) 13.2 months (4) 10.2 months
Last Answer : Generally, any projects are measured in weeks. However, the complex project might take more time depending on the level of object re-use available.
Description : How many digits does it take to represent the decimal number 81 in binary?
Last Answer : It takes 7 digits.
Description : A number system that has eight different symbols to represent any quantity is known as A) Binary B) Octal C) Decimal D) Hexadecimal
Description : Sides of equilateral-triangular co-ordinates (on which ternary liquid system is plotted) represent (A) A pure component (B) A binary mixture (C) A ternary mixture (D) Partially miscible ternary system
Last Answer : (B) A binary mixture
Description : A simple quantization scheme would be to represent each output of the source with the ____value closest to it. a. Codeword b. Integer c. Binary sequence d. Coordinates
Last Answer : b. Integer
Description : Which one of the following represent the binary equivalent of the decimal number 23 ? (A) 01011 (B) 10111 (C) 10011 (D) None of the above
Last Answer : (B) 10111
Description : Which of the following voltage is used represent binary '1' in digital circuits . 1.0 V 2. 15 V 3. +5 V 4. 25 V
Last Answer : Which of the following voltage is used represent binary '1' in digital circuits . 1.0 V 2. 15 V 3. +5 V 4. 25 V