4.2-2b Packet scheduling (PRI). Consider again the same pattern of red and green packet arrivals to a router's output port queue, as shown above (in question 4.2-2a). Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under Priority scheduling, where red packets have priority over green packets. Match each time unit (t=1, t=2, t=3....) with the number of the packet that was transmitted and thus "departs" at that time unit. At t=1, the number of the packet that finishes transmission is: [Choose] [Choose ] packet 6 packet 5 At t-3, the number of the packet that No packet departs at this time unit. finishes transmission is: packet 2 At t=4, the number of the packet that packet 4 finishes transmission is: packet 1 At t=2, the number of the packet that finishes transmission is: At t=5, the number of the packet that finishes transmission is: At t=6, the number of the packet that finishes transmission is: At t-7, the number of the packet that finishes transmission is: packet 3 [Chovat [Choose ] [Choose ]

4.2-2b Packet scheduling (PRI). Consider again the same pattern of red and green packet arrivals to a router's output port queue, as shown above (in question 4.2-2a). Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under Priority scheduling, where red packets have priority over green packets. Match each time unit (t=1, t=2, t=3....) with the number of the packet that was transmitted and thus "departs" at that time unit. At t=1, the number of the packet that finishes transmission is: [Choose] [Choose ] packet 6 packet 5 At t-3, the number of the packet that No packet departs at this time unit. finishes transmission is: packet 2 At t=4, the number of the packet that packet 4 finishes transmission is: packet 1 At t=2, the number of the packet that finishes transmission is: At t=5, the number of the packet that finishes transmission is: At t=6, the number of the packet that finishes transmission is: At t-7, the number of the packet that finishes transmission is: packet 3 [Chovat [Choose ] [Choose ]

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

Related questions

Q: Consider a simple UDP-based protocol for requesting files (based somewhat loosely on the Trivial…

Q: 4.2-1a. Packet scheduling (FCFS). Consider the pattern of red and green packet arrivals to a…

A: FCFS schedulingFCFS, or first come, first served, is an acronym. This means that packets will be…

Q: 4.2-1a. Packet scheduling (FCFS). Consider the pattern of red and green packet arrivals to a…

A: First-Come-First-Serve (FCFS) is a scheduling algorithm used in various computing contexts,…

Q: Eight data terminals statistically share the capacity of an outgoing link. Traffic is combined from…

A: The Handwritten Solution is given below:

Q: 2. Packet transmission. a. Consider a packet of length L that begins at end system A and travels…

A: Below is the complete solution with explanation in detail for the given questions about Packet…

Q: KNOWLEDGE CHECKS PACKET SCHEDULING (SCENARIO 2, PRIORITY). Consider the pattern of red and green…

A: Introduction Data (packet) transmission-governing, a crucial aspect of quality of service, is…

Q: A datagram subnet allows routers to drop packets whenever they need to. The probability of a router…

A: According to the question, we have to find (a) hops a packet makes per transmission (b)…

Q: Problem ZI ). A stop-and-wait protocol (recap textbook Ch 3.3.3 or lecture 9) is a simple data link…

A: The investigation of a stop-and-wait protocol, a basic data link layer flow control technique, is at…

Q: KNOWLLDOE OMLUNO PACKET SCHEDULING (SCENARIO 1, RR). Consider the pattern of red and green packet…

A: Solution: Given, Give your answer as 7 ordered digits (each corresponding to the packet number of…

Q: The RDT 3.0 protocol (b). Consider the rdt3.0 sender and receiver shown below, with FSM…

A: Transition t1: This transition happens after the receiver has processed the first packet and sends…

Concept explainers

Types Of Protocols

A network protocol is a collection of rules that governs the exchange of data between devices connected to the same network. In other words, network protocols are rules that specify how devices communicate or transfer data over a network. The sender and receiver systems must obey the standards to facilitate communication between them.

Question

**4.2-2b Packet Scheduling (PRI)**

Consider again the same pattern of red and green packet arrivals to a router’s output port queue, as shown above in question 4.2-2a. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under Priority scheduling, where red packets have priority over green packets. Match each time unit (t=1, t=2, t=3, etc.) with the number of the packet that was transmitted and thus "departs" at that time unit.

- **At t=1**, the number of the packet that finishes transmission is: [ Choose ]

- **At t=2**, the number of the packet that finishes transmission is: [ Choose ]

- **At t=3**, the number of the packet that finishes transmission is: [ Choose ]

- **At t=4**, the number of the packet that finishes transmission is: [ Choose ]

- **At t=5**, the number of the packet that finishes transmission is: [ Choose ]

- **At t=6**, the number of the packet that finishes transmission is: [ Choose ]

- **At t=7**, the number of the packet that finishes transmission is: [ Choose ]

### Packet Choices:

- Packet 6
- Packet 5
- No package departs at this time unit.
- Packet 2
- Packet 4
- Packet 1
- Packet 3

This exercise requires you to match each time unit to the packet that departs, considering a priority scheduling algorithm that gives precedence to red packets over green packets.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Priority scheduling :

VIEW

Step 2: Solution :-

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

Hello, the questions are detailed in the attached picture. Thank you
(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.
I need some help.......
Consider sending a file of F bits over a path of Q links. Each link transmits at R bits per second (bps). The network is lightly loaded so that there are no queueing delays. When a form of packet switching is used, the F bits are broken up into packets, each packet with L bits, of which h bits of it are header. Propagation delay is negligible. Let F = 5x104, Q = 20, R = 1 Mbps, L = 1000, and h = 10. b) Suppose the network is a packet-switched datagram network and a connectionless service is used. How long does it take to send the file?
Packet scheduling. Consider the same pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under round robin scheduling. Assume a round-robin scheduling cycle begins with green packets. Give your answer as 7 ordered digits (each corresponding to the packet number of a departing packet), with a single space between each digit, and no spaces before the first or after the last digit, e.g., in a form like 7 6 5 4 3 2 1). [Note: You can find more examples of problems similar to this here.] arrivals packet in service departures 1 234 0 5 2 67 ??????? 3 4 5 6
Consider sending a file of F bits over a path of Q links. Each link transmits at R bits per second (bps). The network is lightly loaded so that there are no queueing delays. When a form of packet switching is used, the F bits are broken up into packets, each packet with L bits, of which h bits of it are header. Propagation delay is negligible. Let F = 5x104, Q = 20, R = 1 Mbps, L = 1000, and h = 10. c. Suppose the network is a packet-switched virtual circuit network. Denote the VC set-up time by ts = 250 milliseconds. How long does it take to send the file from source to destination?
Consider the subnet in Fig. 3.11.5. Distance vector routing is used and the following vectors have just come in to router C: from B (5, 0, 8, 12, 6, 2); from D(16, 12, 06, 0, 9, 10) and from E(7, 6, 3, 9, 0, 4). The measured delays to B, D and E are 6, 3 and 5 respectively. What is C's new routing table? Give both the outgoing line to used and the expected delay ? A B E Fig. 3.11.5 F D
1. Consider a path from host A to host B through a router X as follows: A- -X-B The capacity of the link AX is denoted Ra, while the capacity of the link XB is denoted Rb in units of [bits/s]. Assume that Ra Ri. Is it possible that the second packet queues at input queue of the second link? Explain. Now suppose that host A sends the second packet T seconds after sending the first packet. How large must T be to ensure no queueing before the second link? Explain.
Consider one TCP connection on a path with a bottleneck link with capacity L. We have a file of size F(assume F is a very large file size). If TCP segment size is B bytes, the two-way propagation delay is tp and connection is always in congestion avoidance phase, find the following: A. Maximum window size that TCP can achieve B. Average window size and average throughput in this TCP connection C. Time it will take from connection establishment to reaching the maximum window size.
4.2-1a. Packet scheduling (FCFS). Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t = 1, 2, 3, 4, 5, 6, 7) under FCFS scheduling. Give your answer as 7 ordered digits (each corresponding to the packet number of a departing packet), with a single space between each digit, and no spaces before the first or after the last digit, e.g., in a form like 7 6 5 4 3 21). arrivals packet in service departures 0 234 ???? ? ? ? ? IN 5 67 2 3 1+ ??? 5 ←s 6
4.2-2. Packet scheduling (FCFS). Consider the pattern of red and green packet arrivals to a router's output port queue, shown below. Suppose each packet takes one time slot to be transmitted, and can only begin transmission (at the earliest) at the beginning of a time slot after its arrival. Indicate the sequence of departing packet numbers (at t=1, 2, 3, 4, 5, 6, 7) under FCFS scheduling. Match each time unit (t=1, t=2, t=3 ....) with the number of the packet that was transmitted and thus "departs" at that time unit. arrivals packet in service departures 1 23 ??????? m At t= 1, the number of the packet that finishes transmission is: At t=4, the number of the packet that finishes transmission is: [Choose ] [Choose ] packet 1 At t=2, the number of the packet that packet 4 finishes transmission is: packet 5 packet 6 packet 3 At t=3, the number of the packet that No packet leaves at this time. finishes transmission is: packet 2 At t=5, the …
Consider the following scenario in which host A is sending a file to host B over a TCP connection. Assuming that the sequence number of the first data byte sent by A is 0 and every segment always includes 1000 bytes of data, excluding the TCP header. At some point of time, bytes up to 6400 have been written into the sender’s buffer. Bytes up to 4999 have been sent out but the segment which contains bytes 2000~2999 has not arrived at host B yet. At the receiver’s side, all bytes up to 3999 have been received except for bytes 2000~2999. Bytes up to 499 have been read from the buffer by the application. Assume that the maximum size of the sender’s buffer is large enough. Consider the sliding window algorithm in TCP and answer the following questions. 1) What are the values for LastByteAcked, LastByteSent, and LastByteWritten? 2) What are the values for LastByteRead, NextByteExpected, and LastByteRcvd? 3) Assuming that the maximum size of the receiver’s buffer is 4000 byte, what would…