EBK COMPUTER NETWORKING
7th Edition
ISBN: 8220102955479
Author: Ross
Publisher: PEARSON
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Chapter 4, Problem P3P
a.
Explanation of Solution
The maximum queuing delay for the switching fabric which is n times faster than the input line rates is (n-1)D...
b.
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The maximum queuing delay for the switching fabric which is n times faster than the input line rates is (n-1)D...
c.
Explanation of Solution
The maximum queuing delay for the switching fabric which is n times faster than the input line rates is (n-1)D...
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2. As we saw in class, pipelining with 3 packets increased utilization by a factor of 3.
Assuming all packets are the same size, as the number of packets in a pipeline, n,
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A telephone modem is used to connect a personal computer to a host computer. The speed of the modem is 56 kbps, the one-way propagation delay is 100 ms, the packet size is 256 bytes, and the probability of an error in a packet is 10^-4.
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Choose the correct statment(s) from the following.
A. It is possible to design a broadcast algorithm for ring interconnect network with time complexity O(logp)O(logp), where p is the number of nodes in the ring.
B. The time complexity of broadcast in bus interconnect network is O(1)O(1).
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Chapter 4 Solutions
EBK COMPUTER NETWORKING
Ch. 4 - Lets review some of the terminology used in this...Ch. 4 - Prob. R2RQCh. 4 - Prob. R3RQCh. 4 - Prob. R4RQCh. 4 - Prob. R5RQCh. 4 - Prob. R6RQCh. 4 - Prob. R7RQCh. 4 - Prob. R8RQCh. 4 - Prob. R9RQCh. 4 - Prob. R10RQ
Ch. 4 - Prob. R11RQCh. 4 - Prob. R12RQCh. 4 - Prob. R13RQCh. 4 - Prob. R14RQCh. 4 - Prob. R15RQCh. 4 - Prob. R16RQCh. 4 - Prob. R17RQCh. 4 - Prob. R18RQCh. 4 - Prob. R19RQCh. 4 - Prob. R20RQCh. 4 - Prob. R21RQCh. 4 - Prob. R22RQCh. 4 - Prob. R23RQCh. 4 - Prob. R24RQCh. 4 - Prob. R25RQCh. 4 - Prob. R26RQCh. 4 - Prob. R27RQCh. 4 - Prob. R28RQCh. 4 - Prob. R29RQCh. 4 - Prob. R30RQCh. 4 - Prob. R31RQCh. 4 - Prob. R32RQCh. 4 - Prob. R33RQCh. 4 - Prob. R34RQCh. 4 - Prob. R35RQCh. 4 - Prob. P1PCh. 4 - Prob. P2PCh. 4 - Prob. P3PCh. 4 - Consider a datagram network using 32-bit host...Ch. 4 - Consider a datagram network using 8-bit host...Ch. 4 - Consider a datagram network using 8-bit host...Ch. 4 - Prob. P8PCh. 4 - Prob. P9PCh. 4 - Prob. P10PCh. 4 - Prob. P11PCh. 4 - Prob. P12PCh. 4 - Consider sending a 2400-byte datagram into a link...Ch. 4 - Prob. P15PCh. 4 - Prob. P16PCh. 4 - Prob. P17PCh. 4 - Prob. P18PCh. 4 - Prob. P19PCh. 4 - Prob. P20PCh. 4 - Prob. P21PCh. 4 - Prob. P22P
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- 2. (a) Suppose an end device A wants to send a frame containing a black and white image to another end device B. There are a total of 4 routers(R1,R2,R3,R4) in between them. The image being sent is a 1080*1920 pixel image. Every pixel is represented with 1 bit. The processing time(p) of each router in given below: I. R1: p = 1µs II. R2: p = 1.5μs III. R3: p = 2µS IV. R4: p = The image is being sent through a link of bandwidth 7 MBPS and device B is 3500 Km away from device A. The signal passes through the link at a speed of 2.5x10^8m/s. Considering there is no queuing time, calculate the total delay for this transmission.arrow_forward2. Consider a bus-topology network with five stations. A reservation access method is used. Each station has infinite data to transmit. Each reservation slot has 10 microseconds (note that 1 microsecond = 106 second). For each station, one data transmission sends 1000 bits. The transmission rate over the medium is 10 Mbps. For a station, which is its throughput (in unit "Mbps")?arrow_forwardFrames of 1000 bits are sent over a 106 bps duplex link between two hosts. The propagation time is 25 ms. Frames are to be transmitted into this link to maximally pack them in transit (within the link). 1.1 What is the minimum number of bits (1) that will be required to represent the sequence numbers distinctly? Assume that no time gap needs to be given between transmission of two frames.arrow_forward
- Computer Networks Problem In the CSMA/CD protocol, the network adapter waits K-512 bit times after a collision, where K is drawn randomly. For K=20, how long does the adapter wait until returning to Step 2 for a 10 Mbps broadcast channel?arrow_forwardAs another example, consider a circuit-switched network that connects computers in two remote offices of a private company. The offices are connected using a T-1 line leased from a communication service provider. There are two 4 × 8 (4 inputs and 8 outputs) switches in this network. For each switch, four output ports are folded into the input ports to allow communication between computers in the same office. Four other output ports allow communication between the two offices. Figure shows the situationarrow_forwardConsider a bus network with two computers connected shown below: -d m- -X m- A В Rate: R1 Mbps Rate: R2 Mbps Velocity of Propagation: v2 m/s Velocity of Propagation: v, m/s The two computers A and B transmit at two different bandwidths R1 and R2 respectively. The signals transmitted from each computers travel over the bus with different propagation speeds vi m/s and v2 m/s respectively. (Note: This is a hypothetical scenario) Each computer transmits only one bit at the same instance of time. a) Show the distance X m from Computer A where the collision of the two bits occur is R2 vid + Viv2 X = \Vị + v2, R1R2 Vị + v2. b) If, both the computers transmit with the bandwidth R and both signals travel with a propagation speed v, determine X.arrow_forward
- (a) Suppose a server S and client C are connected over the Internet. The one-way prop- agation delay from S to C is 50 ms. The maximum throughput between S and C is R = 200 Mbps. A browser on client C makes an HTTP request for a webpage on server S. The base HTML file is of size 500 KB and it references five objects, each of size 5 MB. Find the total response time for the client to receive the entire webpage using nonpersistent HTTP with up to two parallel connections. Assume that when two par- allel connections are active, the throughput for each connection is 40% of the maximum throughput R. (b) Suppose an application running on host ece.gmu.edu needs to resolve the domain name cs.vtech.edu. Draw a diagram (with labels) showing the sequence of queries/responses in a recursive DNS query to find the answer in a scenario where all levels of the DNS hierarchy are involved.arrow_forwardSuppose that a computer that is used as a switch can process 20,000 packets/second. Give a range ofpossible bit rates that traverse the I/O bus and main memory.arrow_forwardAssume that there is a shared connection (for example, an Ethernet bus) with a speed of 1 Mbps. How much time (in microseconds) is required to send a frame with a length of 1000 bits over this link?arrow_forward
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