Description : When a beam of light travels through media of two different densities, if theangle of incidence isgreater than the critical angle, _______ occurs. A) reflection B) refraction C) incidence D) criticism
Last Answer : reflection
Description : Total internal reflection takes place if the light ray strikes the interface at an angle with what relationship to the critical angle? a. Less than b. Grater than c. Equal to d. Zero
Last Answer : b. Grater than
Description : Total internal reflection takes place if the light ray strikes the interface at an angle with what relationship to the critical angle? ∙ A. less than ∙ B. greater than ∙ C. equal to ∙ D. zero
Last Answer : ∙ B. greater than
Description : Total internal reflection takes place if the light ray strikes the interface at an angle with what relationship to the critical angle? ∙ a. Less than ∙ b. Grater than ∙ c. Equal to ∙ d. Zer
Last Answer : ∙ b. Grater than
Description : The maximum angle in which external light rays may strike the air/glass interface and still propagate down the fiber. ∙ A. Acceptance cone half-angle ∙ B. Acceptance cone ∙ C. Critical angle ∙ D. Angle of incidence
Last Answer : A. Acceptance cone half-angle
Description : The minimum angle of incidence at which the light ray may strike the interface of two media and result in an angle of refraction of 90 degrees or greater. ∙ A. optimum angle ∙ B. angle of refraction ∙ C. refracted angle ∙ D. critical angle
Last Answer : D. critical angle
Description : On a rainy day, small oil films on water show brilliant colors'. This is due to A. dispersion B. interference C. diffraction D. Polarization 49.The critical angle for a beam of light ... A. absorbed B. totally reflected C. Partially reflected and partially transmitted D. Totally transmitted
Last Answer : C. Partially reflected and partially transmitted
Description : When light moves from air to water the ray of light bends ________ the normal. a) away b)towards c)along d)no change
Last Answer : b)towards
Description : Each station on an Ethernet network has a unique _______ address imprinted onits network interface card (NIC). A) 5-byte B) 32-bit C) 48-bit D) none of the above
Last Answer : 48-b
Description : The _______ layer provides a well defined service interface to the network layer, determining how the bits of the physical layer are grouped into frames A. Data Link B. Physical C. Network D. Session
Last Answer : A. Data Link
Description : Optical fiber uses reflection to guide light through a channel, in which angle of incidence is ................. the critical angle. (A) equal to (B) less than (C) greater than (D) less than or equal to
Last Answer : (C) greater than
Description : It is the angle at which the propagating ray strikes the interface with respect to the normal. ∙ A. refracted angle ∙ B. incident angle ∙ C. reflected angle ∙ D. critical angle
Last Answer : incident angle
Description : If the depth of actual neutral axis of a doubly reinforced beam (A) Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier (B) Is less ... critical neutral axis; the concrete and steel attain their maximum stresses simultaneously (D) All the above
Last Answer : Answer: Option D
Description : If a constant section beam is subjected to a uniform bending moment throughout, its length bends to (A) A circular arc (B) A parabolic arc (C) A catenary (D) None of these
Last Answer : (A) A circular arc
Description : _______ can detect burst error of length less than or equal to degree of the polynomial and detects burst errors that affect odd number of bits. a. Hamming Code b. CRC c. VRC d. None of the above
Last Answer : b. CRC
Description : What is the condition for total internal reflection? (a) Angle of incidence is less than to critical angle (b) Angle of incidence is equal to critical angle (c) Angle of incidence is greater than to critical angle (d) None of these
Last Answer : (c) Angle of incidence is greater than to critical angle
Description : A tree breaks due to storm and the broken part bends so that the top of the tree touches the ground making an angle 30° with it. The distance between the foot of the tree to the point where the top touches the ground is 8 m. Find the height of the tree. -Maths 9th
Last Answer : The broken part bends so that the top of the tree touches the ground making an angle 30 °. The distance between the foot of the tree to the point where the top touches the ground is 8 m. Original height of ... After rationalising Now we have , A`BC = AB + BC Take LCM So , original height of tree is
Description : When examining a completed bend test, the angle of the bend was found to be 185°. The testing specification calls for the sample to have been formed through 180°? a) They should be acceptable as ... then re-examined d) They should be rejected as the angle is not close enough to be acceptable
Last Answer : c) New bends should be produced and bent to 180° then re-examined
Description : Scouring will occur as long as a) Frictional resistance at soil tool interface is less than the resistance at parallel soil-soil inter face b) Frictional resistance at soil tool interface is more than ... c) Soil-metal friction is more than angle of soil shearing resistance d) None of the above
Last Answer : a) Frictional resistance at soil tool interface is less than the resistance at parallel soil-soil inter face
Description : For Stop-and-Wait ARQ, for 10 data packets sent, _______ acknowledgments are needed. A) exactly 10 B) less than10 C) more than 10 D) none of the above
Last Answer : exactly 10
Description : For Stop-and-Wait ARQ, for 10 data packets sent, _______ acknowledgments are needed A. exactly 10 B. less than 10 C. more than 10 D. none of the above
Last Answer : B. High-level data link control
Description : Which of the following statements accurately describe the differences between a hub and a switch? Check all that apply. A. A switch remembers which devices are connected on each interface, while a hub does not. B. A hub is a ... versions of switches. a. A,B b. A,B,C c. A,B,C,D d. A,C,D
Last Answer : b. A,B,C
Description : Consider the following statements: 1. A pool of water looks shallower than it actually is. 2. Light bends towards the normal while travelling from water to air. Which of the above statements is/are correct? (a) Both (b) None (c) 1 only (d) 2 only
Last Answer : Ans:(c)
Description : The maximum angle in which external light rays may strike the air/glass interface and still propagate down the fiber.
Last Answer : Acceptance cone half-angle
Description : In an optical fiber, the inner coreis _______ the cladding. A) denser than B) less dense than C) the samedensityas D) another name for
Last Answer : denser than
Description : Data structure suitable for the application is discussed in ? data design architectural design procedural design interface design
Last Answer : data design
Description : Design phase includes? data, architectural and procedural design only architectural, procedural and interface design only data, architectural and interface design only data, architectural, interface and procedural design
Last Answer : data, architectural, interface and procedural design
Description : Which command does not show that two devices are failing to route packets between them successfully? A. show interface B. trace C. telnet D. ping
Last Answer : show interface
Description : What would be the proper command to set a DCE clock rate of 56k for a serial interface? A. Router (config) # clockrate 56000 B. Router# clockrate 56000. C. Router (config-if) #clock rate 56000 D. Router (config-if) # clockrate 56k
Last Answer : Router (config-if) #clock rate 56000
Description : Interface electronic circuit is used to interconnect I/O devices to a computer’s CPU or a. ALU b. Memory c. Buffer d. Register
Last Answer : Memory
Description : The system unit of a personal computer typically contains all of the following except: a. Microprocessor b. Disk controller c. Serial interface d. Modem
Last Answer : Modem
Description : Which of the following magazines covers only the IBM PC and its compatibles? a. Byte b. PC Magazine c. Personal Computing d. Interface Age
Last Answer : PC Magazine
Description : A protocol is a set of rules governing a time sequence of events that must take place a. between peers b. between an interface c. between modems d. across an interface
Last Answer : between peers
Description : What is the number of separate protocol layers at the serial interface gateway specified by the X.25 standard? a. 4 b. 2 c. 6 d. 3 3. none of the above
Last Answer : 3
Description : The x.25 standard specifies a a. technique for start-stop data b. technique for dial access c. DTE/DCE interface d. data bit rate e. none of above
Last Answer : DTE/DCE interface
Description : What interface card do you need toconnect to a network? A) ISP card B) Wireless card C) Router D) NIC
Last Answer : NIC
Description : _________is the interface between two ATM switches. A) UNI B) NNI C) NNN D) none of the above
Last Answer : NNI
Description : IGMP helps a ________ router createand update a list of loyal members relatedto each router interface. A) broadcast B) unicast C) multicast D) noneof the above
Last Answer : multicast
Description : An enterprise solution withdata storage, a client interface and a security system isa(n) __________ system. A) 2-tier B) 3-tier C) 4-tier D) n-tier
Last Answer : 3-tier
Description : Data aresent over pin _____ of the EIA-232 interface. A. 2 B. 3 C. 4 D. All of theabove
Last Answer : 2
Description : Computers cannot communicate with each other directly over telephone lines because they usedigitalpulses whereas telephone lines useanalog sound frequencies. What is the name of the device which permits digital to analog ... A. Interface B. Modem C. Attenuation D. Teleprocessor E. None of the above
Description : Which layers of the OSI determines the interface often system with the user? A) Network B) Application C) Data link D) Session
Last Answer : B) Application
Description : FDDI stands for A) Fiber Distributed Data Interface B) Fiber Data Distributed Interface C) Fiber Dual Distributed Interface D) Fiber Distributed Data Interface
Last Answer : A) Fiber Distributed Data Interface
Description : Silly Window Syndrome is related to a. Error during transmission b. File transfer protocol c. Degrade in TCP performance d. Interface problem
Last Answer : c. Degrade in TCP performance
Description : Which sublayer of the data link layer performs data link functions that depend upon the type of medium? a. logical link control sublayer b. media access control sublayer c. network interface control sublayer d. error control sublayer
Last Answer : b. media access control sublayer
Description : Automatic repeat request error management mechanism is provided by ________ a. logical link control sublayer b. media access control sublayer c. network interface control sublayer d. application access control sublayer
Last Answer : a. logical link control sublayer
Description : Full form of OSI a. open system interconnection b. operating system interface c. optical service implementation d. open service Internet
Last Answer : a. open system interconnection
Description : Which layer provides interface between network support layers and user support layers? a. session layer b. data link layer c. transport layer d. network layer
Last Answer : c. transport layer
Description : The function of IP adress is …………………………………………. A. host identification B. network interface identification C. location addressing D. all of the above
Last Answer : D. all of the above
Description : The …………………... command can set or display the configuration values for a network interface. A. ping B. traceroute C. ifconfig D. finger
Last Answer : C. ifconfig