Description : What is the commonly used unit for measuring the speed of data transmission? A) Bytes per second B) Baud C) Bits per second D) Both B and C
Last Answer : B) Baud
Description : What is the commonly used unit for measuring the speed of data transmission? A) Bytes per second B) Baud C) Bits per second
Description : What is the commonly used unit for measuring the speed of data transmission? A) Bytes per second B) BaudC) Bits per second D) Both B and C
Description : Consider a CSMA/CD network that transmits data at a rate of 100 Mbps (108 bits per second) over a 1 km (kilometre) cable with no repeaters. If the minimum frame size required for this network is 1250 bytes, what is the signal speed (km/sec) in the cable? a. 8000 b. 10000 c. 16000 d. 20000
Last Answer : d. 20000
Description : Who is responsible in the correctness and accuracy of transmitted information content over a data communication? A. The channel B. The transmitter and receiver C. The modem D. The bridge
Last Answer : B. The transmitter and receiver
Description : Which of the following relationship is valid for the equilibrium position of the float in a Rotameter? (Where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float). (A) Df + Bf = Wf (B) Df = Bf + Wf (C) Df + Bf + Wf =0 (D) None of these
Last Answer : (A) Df + Bf = Wf
Description : Wp and Wf are the weights of a cylinder containing partially compacted and fully compacted concrete. If the compaction factor (Wp/Wf ) is 0.95, the workability of concrete is (A) Extremely low (B) Very low (C) Low (D) High
Last Answer : Option D
Description : In SONET, for each frame, the bytes are transmitted __________. A) from left to the right, top to bottom B) from right to theleft, bottom to top C) from left to the right, bottom to top D) from right to the left, top to bottom
Last Answer : from left to the right, bottom to top
Description : How many 8-bit characters can be transmitted per second over a 9600 baud serial communication link using asynchronous mode of transmission with one start bit, eight data bits, two stop bits, and one parity bit ? a. 600 b. 800 c. 876 d. 1200
Last Answer : b. 800
Description : Gigabyte is actually 210 bytes. -Technology
Last Answer : TrueBecause it is actual210 bytes or 1 GB =1024 bytes.
Description : An integer takes a storage size of (a) 2 bytes (b) 1 byte -Technology
Last Answer : (a) An integer takes a storage size of 2 bytes.
Description : Four channels are multiplexed using TDM. If each channel sends 100 bytes/second and we multiplex 1 byte per channel, then the bit rate for the link is __________. a. 400 bps b. 800 bps c. 1600 bps d. 3200 bps
Last Answer : d. 3200 bps
Description : Four channels are multiplexed using TDM. If each channel sends 100 bytes/second and we multiplex 1 byte per channel, then the bit rate for the link is ............... (A) 400 bps (B) 800 bps (C) 1600 bps (D) 3200 bps
Last Answer : (D) 3200 bps Answer: D Explanation: The multiplexer is shown in the Figure. Each frame carries 1 byte from each channel; the size of each frame, therefore, is 4 bytes, or 32 bits. Because each ... channel, the frame rate must be 100 frames per second. The bit rate is 100 32 = 3200 bps.
Description : The correctness and accuracy of the transmitted message content is A. verified by the modem B. communications system C. determined by the sender and receiver D. ensured by use of digital technique
Last Answer : C. determined by the sender and receiver
Description : Frames from oneLAN can be transmitted to anotherLAN viathe device A. Router B. Bridge C. Repeater D. Modem
Last Answer : Bridge
Description : Modulation and demodulation is performed by (a) Microwave (b) Satellite (c) Modem -Technology
Last Answer : (c) Modem converts digital signals to analog signals or analog signals to digital signals for the purpose of transmitting data over telephone lines or vice-versa.
Description : A modem is connected in between a telephone line and a (a) computer -Technology
Last Answer : (a) Modem is a device that enables computers and other equipment to communicate with each other using telephone lines.
Description : Which of the following is not a transmission medium? (a) Telephone lines (b) Co_axial cable (c) Modem (d) Microwave system -Technology
Last Answer : (c) All are communication channel but modem is a dev that convert analog signals to digital signals or vice-versa
Description : The line control unit (LCU) operates on the data digital form. A. Data communications equipment (DCE) B. UART C. Modem D. Data terminal equipment (DTE)
Last Answer : D. Data terminal equipment (DTE)
Description : When a wide band of frequencies is transmitted simultaneously, each frequency will vary in the amount of fading. What is this variable fading called?
Last Answer : Selective fading.
Description : A sender uses the Stop-and-Wait ARQ protocol for reliable transmission of frames. Frames are of size 1000 bytes and the transmission rate at the sender is 80 Kbps (1Kbps = 1000 bits/second). Size of ... is lost, the sender throughput is __________ bytes/second. a. 2500 b. 2000 c. 1500 d. 500
Last Answer : a. 2500
Description : Speed of processor chip is measured in (1) Mbps (2) MHz (2) Bits/second (4) Bytes/second
Last Answer : MHz
Description : Any apple heads know how to make WiFi Extreme Port work with Comcast DSL modem so i get my Macbook/iPad/iPhone work?
Last Answer : I can’t help you – I am an Apple core person. (If you are receiving a signal icon, then the problem is probably with your router/modem firewall/security settings.)
Description : Does it really matter if you put your modem on the floor?
Last Answer : My modem gets extremely hot; I’d say it may be circulation related; unless it includes a wifi antenna then that may be the only reason (heat dissipation). Can’t think of any others.
Description : The transfer of data from a CPU to peripheral devices of computer is achieved through ________ A. Modem B. Interface C. Buffer D. I/O Ports
Last Answer : D. I/O Ports
Description : A memory unit stores 2^16 bytes in 32-bit words. How many address bits are necessary in order to retrieve a single word from this memory unit?
Last Answer : Each word is 4 bytes, which occupies 4 consecutive addresses at 16 bits each. The first 14 bits of these addresses will be the same, differing only in the two least significant bits. You only need to specify the first 14 bits, because there are only 2^14 words occupying those 2^16 bytes.
Description : The memory unit is made up of _____ bytes. a) 256 b) 124 c) 4096 d) 3096
Last Answer : Answer: c Explanation: The memory unit is made up of 4,096 bytes. Memory unit is responsible for the storage of data. It is an important entity in the computer system
Description : An IP datagram of size 1000 bytes arrives at a router. The router has to forward this packet on a link whose MTU (maximum transmission unit) is 100 bytes. Assume that the size of the IP header is 20 bytes ... the IP datagram will be divided into for transmission is : a. 10 b. 50 c. 12 d. 13
Last Answer : d. 13
Description : In CPU, control unit performs the actual processing on the data. -Technology
Last Answer : FalseIn CPU, control unit does not perform am actual processing instead it controls and guides the operations like a supervisor.
Description : What is the commonly used unit for measuring the sped of data transmission? 1) Bits per second 2) Nano seconds 3) Characters per second 4) Mega Hertz
Last Answer : 1) Bits per second
Description : What is the commonly used unit for measuring the speed of data transmission ? (1) Mega Hertz (2) Characters per second (3) Bits per second (4) Nano seconds
Last Answer : Bits per second
Description : Consider a disk with 16384 bytes per track having a rotation time of 16 msec and average seek time of 40 msec. What is the time in msec to read a block of 1024 bytes from this disk? (A) 57 msec (B) 49 msec (C) 48 msec (D) 17 msec
Last Answer : Answer: B
Description : Which one of the following statements is correct with respect to AIDS? (a) The HIV can be transmitted through eating food together with an infected person. (b) Drug addicts are least ... and nutrition. (d) The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers.
Last Answer : (d) The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers.
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 : Answer : D
Description : Which part of the computer is used for calculating and comparing? A) Disk unit B) Control unit C) ALU D) Modem
Last Answer : Answer : C
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 part of the computer is used for calculating and comparing? a) ALU b) Control unit c) Disk unit d) Modem e) None of these
Last Answer : a) ALU
Description : Which part of the computer is used for calculating and comparing? a. Disk unit b. Control unit c. ALU d. Modem
Last Answer : c. ALU
Last Answer : d. Modem
Description : Sound energy passing per second through a unit area held perpendicular is called - (1) Intensity (2) Frequency (3) Amplitude (4) Quality
Last Answer : (1) Intensity Explanation: Sound energy passes through a unit area held perpendicular to the direction of propagation of sound waves is called intensity of sound.
Description : Can't generate thumbnails in gallery ? Cannot generate thumbnails showing all the pictures and videos in my memory . No pictures are being opened. Pictures and videos have all the data. Not 0 bytes yet . How do I get my memory back ?
Last Answer : You can download the photo recovary app from the Play Store and get all those pictures back.
Description : A normal CD-ROM usually can store up to data? A) 680 KB B) 680 Bytes C) 680 MB D) 680 GB
Description : Can you tell what passes into and out from the computer via its ports? A) Data B) Bytes C) Graphics D) Pictures
Last Answer : Answer : A
Description : Which of the following are the best units of data on an external storage device? A) Bits B) Bytes C) Hertz D) Clock cycles
Last Answer : Answer : B
Description : Inasynchronous transmission, the gap time between bytes is _______. A) fixed B) variable C) afunctionof the data rate D) zero
Last Answer : variable
Description : In IPv4, what is the value of the total length field in bytes if the header is 28 bytes and the data field is 400bytes? A) 428 B) 407 C) 107 D) 427
Last Answer : 428
Description : What is the maximum size of data that the application layer can pass on to the TCP layer below? a. Any size b. 216 bytes - size of TCP header c. 216 bytes d. 1500
Last Answer : a. Any size
Description : The network layer is concerned with __________ of data. a. bits b. frames c. packets d. bytes
Last Answer : c. packets