22- The operation of the fiber-optic cable is based on the principle of Refraction 6. Reflection c. Dispersion d. Absorption 24- The core of a fiber optic cable is made of a. Air b. Glass c. Diamond J. Quartz 25- Refraction is the a. Bending of light waves b.) Reflection of light waves e. Distortion of light waves J. Diffusion of light waves 26- Which type of fiber optic cable is most widely used? a. Single-mode step-index b. Multimode step-index Single-mode graded-index d. Multimode graded-index 27- Which type of fiber-optic cable is the best for very high speed data? a. Single-mode step-index b. Multimode step-index Single-mode graded-index d. Multimode graded-index

22- The operation of the fiber-optic cable is based on the principle of Refraction 6. Reflection c. Dispersion d. Absorption 24- The core of a fiber optic cable is made of a. Air b. Glass c. Diamond J. Quartz 25- Refraction is the a. Bending of light waves b.) Reflection of light waves e. Distortion of light waves J. Diffusion of light waves 26- Which type of fiber optic cable is most widely used? a. Single-mode step-index b. Multimode step-index Single-mode graded-index d. Multimode graded-index 27- Which type of fiber-optic cable is the best for very high speed data? a. Single-mode step-index b. Multimode step-index Single-mode graded-index d. Multimode graded-index

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Q1. State Nyquist theorem states for a noiseless channel:Nyquist gives the upper bound for the bit rate of a transmission system by calculating the bit rate directly from the number of bits in a symbol (or signal levels) and the bandwidth of the system (assuming 2 symbols/per cycle and first harmonic).Note: In this question use the internet (Goggle) engine search, B. A. Forouzan,"Data Communications and Networking", 5th edition, McGraw-Hill educations, 2013 Textbook or any references to answer your question and in your own words justify your answer
1. Design a quantum circuit for quantum teleportation if Alice and Bob start with the shared state |01) + |10)
Print both the value(s) of lambda and the corresponding Photon energy ONLY where the Photon Energy is greater than 1.173 and less than 1.183 matlab
Distinguish between a truth table, a state table, a characteristic table, and an excitation table. Also, differentiate between a Boolean equation, a state equation, a characteristic equation, and a flip-flop input equation.
-Calculate the average power of the discrete-time wave shown in fig a?* O 01 O 6 Oº Jalala pa pa pa pa alable
19. For the network of Fig. 6.82 D, find: a. The voltage V. b. The current /2. c. The current I,. d. The power to the 12 kQ resistor. 12 kΩ 18 kN 48 V Is + v - 3 kN 12
: Answer All points: Which circuits in Fig.1 have the same resistance between the terminals? 49 49 88. 80 A B، D c OA and B OB and D OC and D OA and D ارسال الاجابة عدد الاجوب 49 محس w 40 Fig.1 تقنيات الاتصالات/المرح / المادة : دوائر كهربائية - سنوي ذار ه السؤال التالي عدد الاسئلة : 14 160 لس م 16 02:53:47
81. A television broadcast is an example of ....................... transmission. a. Simplex b. half-duplex c. full-duplex d. automatic
1 An active fiber detector: (a) is used to prevent accidental exposure to invisible light (b) is a communication system used during installation (c) detects movement of fiber in security systems (d) can be used to weigh objects If light leaves a material of refractive index 1.45 and crosses an abrupt boundary into a material of refractive index 1.0, the Fresnel loss would be: (a) 0.346 dB (b) 0.149 dB (c) 1.613 dB (d) 3 dB Absorption loss is caused by: (a) insufficient stirring of the ingredients during manufacture (b) changes in the density of the fiber due to uneven rates of cooling 3 (c) microscopic cracks in the cladding which allow leakage of the vacuum in the core (d) impurities in the fiber Rayleigh scatter is most severe: (a) in light with a short wavelength (b) in blue light on the Earth and black light on the moon (c) in low frequency light (d) at sunset Bending losses: (a) always result in breakage of the fiber (b) can be caused by microbends and macrobends (c) are used to…
(A) Use Demorgan's Theorem and Boolean Algebra rules to simplify the following Expressions (i) XY + XYZ + X (Y + XY) (iii) XY + XZ +XYZ (XY + Z) (ii) Y = (A + B)(A +C)(B + C)
Draw the truth tables for the following Boolean expressions. xy+yz+xz x¯y+yz¯+x¯z (x⊕y)+(y⊕z)+(x⊕z) (xy)¯⊕ z 2.Draw circuit diagrams implementing each of the above expressions. You may simplify the expressions or not, as you choose. You may use any of the six fundamental logic gates (AND, OR, NOT, NAND, NOR and XOR). I need help on question 2 containing the circuit diagrams
TRUE or FALSE 11. In a Boolean equation the use of the + symbol represents the OR function. 12. A logic gate has one or more output terminals and one input terminal. 13. An inverter output is the complement of its input. 14. It is important to memorize logic symbols, Boolean equations, and truth tables for logic gates.