An analog signal having frequency as 6,70 KHz is digitized and stored in a file. If the total time of the signal is 24 min andthe file size is 3,32 Mbit , which answer is correct?O a. Bit = 6 bits Data Rate = 40,2 KbpsO b. Bit = 8 bits Data Rate = 107,2 KbpsO c. Bit = 3 bits Data Rate = 221,5 KbpsO d. Bit = 7 bits Data Rate = 93,8 KbpsO e. Bit = 7 bits Data Rate = 80,4 Kbps

An analog signal having frequency as 6,70 KHz is digitized and stored in a file. If the total time of the signal is 24 min and the file size is 3,32 Mbit , which answer is correct? a. Bit = 6 bits Data Rate = 40,2 Kbps O b. Bit = 8 bits Data Rate = 107,2 Kbps %3D O c. Bit = 3 bits Data Rate = 221,5 Kbps d. Bit = 7 bits Data Rate = 93,8 Kbps e. Bit = 7 bits Data Rate = 80,4 Kbps %3D %3D

An analog signal having frequency as 6,70 KHz is digitized and stored in a file. If the total time of the signal is 24 min and the file size is 3,32 Mbit , which answer is correct? a. Bit = 6 bits Data Rate = 40,2 Kbps O b. Bit = 8 bits Data Rate = 107,2 Kbps %3D O c. Bit = 3 bits Data Rate = 221,5 Kbps d. Bit = 7 bits Data Rate = 93,8 Kbps e. Bit = 7 bits Data Rate = 80,4 Kbps %3D %3D

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

A communication link has a bit rate of 10 Gbps and a length of 20 km. Propagation velocity is 2.5 × 108 m/s and ACK frames are piggybacked on information frames going in the reverse direction, one ACK for every received frame. Information frames are 9000 bytes long. The frame header is 100 bytes. (a) What is the minimum window size that maximizes the effective bit rate? (b) What is the information effective bit rate if the window size is 16 frames?
Gap in playback is a common problem exiting in multimedia applications transmitted using the isochronous data transmission approach shown in class. What is the method used to solve the problem?
A communication link has a bit rate of 10 Gbps and a length of 20 km. Propagation velocityis 2.5 × 108 m/s and ACK frames are piggybacked on information frames going in the reversedirection, one ACK for every received frame. Information frames are 9000 bytes long. The frameheader is 100 bytes.(a) What is the minimum window size that maximizes the effective bit rate?(b) What is the information effective bit rate if the window size is 16 frames? The final answers are a) Wsmin = 25 (piggybacked means ACKs embedded in info frames), b) 6.53 Gbps
Suppose we have a computer with the following characteristics: the magnetic disk has an accesslatency of 15 milliseconds and a streaming transfer rate of 5 megabytes per second. For the disk described,what is the effective transfer rate if an average access is followed by a streaming transfer ofa. 1024 bytes
A communication link has a bit rate of 1 Gbps and a length of 40 km. Propagation velocity is2.5 × 108 m/s. Information frames are 9200 bytes long. The frame header is 100 bytes. One100-byte ACK frame is sent for every received information frame.(a) What is the minimum window size that maximizes the effective bit rate?(b) What is the information effective bit rate if the window size is 3 frames?(c) What is the information effective bit rate if the window size is 100 frames? these are the final answers: a) Wsmin = 6, b) Reff = 554 Mbps, c) 989 Mbps
Suppose that I have 800 Gigabytes worth of movies on my hard drive at home, and I’d like to get them to a friend in Chicago. I could either send them over the Internet, or I could copy them to a thumb drive, drive to Chicago, and deliver them by hand. Assume that the specs for my cable connection 50 Mbps download / 10 Mbps upload, but the friend in Chicago has a cable connection which gets 25 Mbps download/5 Mbps upload. Which would be faster? Show your work. Note: you are 3 hours from Chicago
Suppose that data are stored on 8.54-gbyte single-sided, double-layer dvds that weigh 15 g each. suppose that an eurostar rail service train, london to paris via chunnel, carries 10 4 kg of these dvds. the great circle distance of the line is 640 km and the traveling time is 2 hours, 15 minutes. what is the data transmission rate in bits per second of this system?
Example: Assume your Student ID is 436813932. Use the first four numbers for caculating: k=?, m=?× 36 = , n= 0.75Question 1:Assume you want to transmit PAL video as a YUV signal. Each pixel is represented by bits. What is the bit rate required to transmit this video as:1. Composite Video. 2. Separated Video. 3. Component Video.Question 2:A system with 32768 possible colors is used to transmit × pixel image.1. What is the color depth of this system?2. How much storage is required for one image?3. What is the system bit rate if one image takes 1.3169 sec for transmission?Question 3What is the entropy of your name (Turki + Alamri)?Question 4Using the results of Question 3, Encode the first three characters of your full name using Arithmetic code
Calculate the total time required to transfer a 1000-KB file in the following cases, assuming an RTT of 50 ms, a packet size of 1 KBdata, and an initial 2 RTT handshake before data is sent: The bandwidth is 1.5 Mbps, and data packets can be sent continuously. The bandwidth is 1.5 Mbps, but after we finish sending eachdata packet we must wait one RTT before sending the next.
The previous problem is in the picture. Suppose that I have 800 Gigabytes worth of movies on my hard drive at home, and I’d like to get them to a friend in Chicago. I could either send them over the Internet, or I could copy them to a thumb drive, drive to Chicago, and deliver them by hand. Assume that the specs for my cable connection are the same as in the previous problem, but the friend in Chicago has a cable connection which gets 25 Mbps down/5 Mbps up. Which would be faster? Show your work.
As information centers are progressively centered on energy efficiency, it gets to be imperative to create Low control usage of the different applications that run on them. Data or Information compression plays a basic part in information centers to reduce storage capacity and communication costs. This work pivot on building a Low control, High performance execution usage for canonical Huffman encoding. Suppose given Letters I, Q, R, A, C, M, P, U, S with following frequencies. Frequency Table Character Frequency I 20 Q 11 R 8 A 12 C 49 M 10 P 5…
We compress the video with the pattern GoP (16 : 3) by using MPEG coding. Assume that the average compression ratios of frame I, frame P, and frame B are 1:5, 1:20, and 1:60, respectively. We put the compressed frames in 512 B packets and send them. The header size of each packet is 5% of the size of packet. Each packet contains information on one frame and its header, Each frame can be sent in multiple packets. Picture resolution is 196 × 144 for a video at 32 fps. (a)What is the compression ratio in this pattern? (b)What is the order of coding and transmitting frames in this pattern? (c)If frame 6 is lost while transmission, which frames will be faulty? (d)If frame 5 is lost while transmission, which frames will be faulty? (e)If frame 17 is lost while transmission, which frames will be faulty? (f)Find the size of uncompressed image frame? (g)In how many packets can an I-frame be transmitted on average? (h)In how many packets can an I-frame be transmitted on average? (i)In how many…