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 : 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 : ________uses four pairsof voice-grade, or higher, twisted-pair cable. A) 100Base-TX B) 100Base-FX C) 100Base-T4 D) none of the above
Last Answer : 100Base-T4
Description : _________uses two fiber-optic cables. A) 100Base-TX B) 100Base-FX C) 100Base-T4 D) none of the above
Last Answer : 100Base-FX
Description : HDSL encodes datausing _______. A) 4B/5B B) 2B1Q C) 1B2Q D) 6B/8T
Last Answer : 2B1Q
Description : What is 8B / 10B encoding ?
Last Answer : ৮ B / 10B encoding is a telecommunication line code that converts every eight-bit data byte into a 10-bit transmission character. ৮ B / 10B encoding was invented by IBM and is used to ... connectivity , Gigabit Ethernet and Fiber Channel. Also 8B / 10B can detect single bit transmission error.
Description : What is the maximum segment length of a 100Base-FX network?
Last Answer : The maximum segment length will be 412 meters.
Description : 1000Base-T uses________line coding. A) 4D-PAM5 B) 8B6T C) MLT-3 D) Manchester
Last Answer : 4D-PAM5
Description : The transmission signal coding method of TI carrier is called a. Bipolar b. NRZ c. Manchester d. Binary
Last Answer : Bipolar
Description : What is 8b-4b?
Last Answer : 12
Description : In the equation 8b plus 4b 56 - 16b what is the value of b?
Last Answer : Without an equality sign the given expression is not an equationand so therefore no solution is possible.
Description : ________ uses two pairsof twisted-pair cable. A) 100Base-TX B) 100Base-FX C) 100Base-T4 D) none of the above
Last Answer : 100Base-TX
Description : Unipolar, bipolar, and polar encoding are typesof _______ encoding. A) line B) block C) NRZ D) Manchester
Last Answer : line
Description : In block coding, ifn = 5, the maximum Hamming distance between two codewords is ________. A) 2 B) 3 C) 5 D) none of the above
Last Answer : 5
Description : We can divide coding schemes intotwobroad categories: ________ and______coding. A) block; linear B) linear; nonlinear C) block; convolution D) none of the above
Last Answer : block; convolution
Description : In ________, we combine signals from different sources to fit into a larger bandwidth. A) spread spectrum B) line coding C) block coding D) none of the above
Last Answer : spread spectrum
Description : ________ is the process of converting digitaldata to adigital signal. A) Block coding B) Line coding C) Scrambling D) None of the above
Last Answer : Line coding
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)
Last Answer : Manchester
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 : The transformer signal coding method for T1 carrier is A. Binary B. NRZ C. Manchester D. Bipolar
Last Answer : D. 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 : The ______ scheme uses three levels (+V, 0, and-V) andthree transition rules to move betweenthe levels. A) 4B5B B) 2B1Q C) MLT-3 D) none of the above
Last Answer : MLT-3
Description : The _____schemeuses data patterns of size 2 and encodes the 2-bit patterns as one signal element belonging to a four-level signal. A) 4B5B B) 2B1Q C) MLT-3 D) none of the above
Description : Which address could be the beginningaddress of ablock of16 classless addresses? A) 2.4.6.5 B) 2.4.6.15 C) 2.4.6.62 D) none of the above
Last Answer : none of the above
Description : Which of the following can be an Ethernet physical address? A. 01:02:01:2C:4B B. 07:01:02:01:2C:4B:2C C. 07:01:02:01:2C:4B D. none of the above
Last Answer : C. 07:01:02:01:2C:4B
Description : In block coding, if k =2 and n =3, we have _______ invalid codewords. A) 8 B) 4 C) 2 D) none of the above
Last Answer : 2
Description : ______ provides synchronization without increasingthe number of bits. A) Scrambling B) Line coding C) Block coding D) None of the above
Last Answer : Scrambling
Description : _______ isnormally referred toas mB/nB coding; it replaceseach m-bit group with an n-bit group. A) Block coding B) Line coding C) Scrambling
Last Answer : Block coding
Description : _____ provides redundancy toensure synchronization and inherent errordetection. A) Block coding B) Line coding C) Scrambling D) None of the above
Description : __________ conversion involves three techniques: line coding,block coding, and scrambling. A) Analog-to-digital B) Digital-to-analog C) Analog-to-analog D) Digital-to-digital
Last Answer : Digital-to-digital
Description : Block coding can help in _______at the receiver. A) Synchronization B) Error detection C) Attenuation D) (a) and (b)
Last Answer : (a) and (b)
Description : Coding schemes can be divided into two broad categories…………, …… A. character coding, integer coding B. hamming coding and block coding C. Hamming coding and convolution coding D. Block Coding and Convolution Coding.
Last Answer : D. Block Coding and Convolution Coding.
Description : Standard Ethernet (10-Mbps) uses_______ encoding A) NRZ B) AMI C) Manchester D) differential 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 : 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 : 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 : To guarantee correction of upto t errors, the minimum Hamming distance d min in a block code must be ________. a. t+1 b. t−2 c. 2t−1 d. 2t+1
Last Answer : d. 2t+1
Description : how many chill hours are there in zone 10b
Last Answer : Need Answer
Description : An important aspect of coding is ? Readability Productivity To use as small memory space as possible brevity
Last Answer : Readability
Description : Which is the limitation of high level language? a. Lower efficiency b. Machine dependence c. machine level coding d. None of above
Last Answer : None of above
Description : The physical layer is responsible for _____ a) line coding b) channel coding c) modulation d) all of the mentioned
Last Answer : d) all of the mentioned
Description : The dimensions of modulus of elasticity are a.MLT-2 b.107 dynes c.MLT-1 d.ML-2T-1 e.ML-1T-2
Last Answer : e. ML-1T-2
Description : The dimensions of gravitational constant G a.MLT-2 b.M-1L3T-2 c.Ellipsc d.ML2T-1 e.MLT-1
Last Answer : b. M-1L3T-2
Description : Te dimensions of frequency are a.107 dynes b.MLT c.L-1 d.T-1 e.L-1T-1
Last Answer : d. T-1