Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Expert Solution & Answer
Chapter 3, Problem P33P
Explanation of Solution
Reason for TCP avoids measuring the “SampleRTT” for retransmitted segments:
- Retransmitted segment is a failed packet which is transmitted another time with same sequence number. The reason for TCP avoids measuring the “SampleRTT” is the acknowledgement of failed packet may be congested in the network possibly due to queuing delays.
- Consider the following scenario, the source sends the packet “A” at time “t1”. Packet “A” is sent out and an attempt to take a “SampleRTT” is made...
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EXPLORER
OPEN EDITORS
Welcome
com.py...
Welcome
xcom.py
2
✓ DB
com.py
com.sql
6
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11
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com.py
db
class Rectangle:
def _init_(self, length, width):
self.length-length
self.width-width
def area(self):
return
self.width *self.length
def perimeter(self):
return
2+self.width*self.length
y=Rectangle(5,1)
print(y.area)
Why does an error appear in the
code
print(y.perimeter)
PROBLEMS
OUTPUT
TERMINAL
DEBUG CONSOLE
PORTS
I
> OUTLINE
> TIMELINE
0A4 0
self.width *self.length
AAAA
NameError: name 'self' is not defined
PS C:\Users\hp\Desktop\db> & C:/Users/hp/AppData/Local/Microsoft/WindowsApps/python3.12.exe c:/Users/hp/Desktop/db/com.py
Traceback (most recent call last):
File "c:\Users\hp\Desktop\db\com.py", line 1, in
class Rectangle:
File "c:\Users\hp\Desktop\db\com.py", line 7, in Rectangle
self.width *self.length
^^^^^
NameError: name 'self' is not defined
PS C:\Users\hp\Desktop\db>
Ln 17, Col 1 Spaces: 4 UTF-8 CRLF (Python 3
A
ENG
Refer to page 30 for problems on image edge detection.
Instructions:
Implement an edge detection algorithm (e.g., Sobel or Canny) for the given image.
• Explain the preprocessing steps (grayscale conversion, noise reduction) and calculate gradient
intensities.
• Visualize and compare the results with manual edge annotations.
Link: [https://drive.google.com/file/d/1wKSrun-GlxirS31Z9qoHazb9tC440 AZ F/view?usp=sharing]
Refer to page 100 for problems on 2D and 3D transformations.
Instructions:
Compute the result of applying a sequence of transformations (e.g., translation, rotation, scaling)
to a given shape.
Use homogeneous coordinates for matrix representation.
• Show all intermediate matrices and verify the final position of the shape.
Link: [https://drive.google.com/file/d/1wKSrun-GlxirS3IZ9qoHazb9tC440 AZF/view?usp=sharing]
Chapter 3 Solutions
Computer Networking: A Top-Down Approach (7th Edition)
Ch. 3 - Prob. R1RQCh. 3 - Prob. R2RQCh. 3 - Consider a TCP connection between Host A and Host...Ch. 3 - Prob. R4RQCh. 3 - Prob. R5RQCh. 3 - Prob. R6RQCh. 3 - Suppose a process in Host C has a UDP socket with...Ch. 3 - Prob. R8RQCh. 3 - Prob. R9RQCh. 3 - In our rdt protocols, why did we need to introduce...
Ch. 3 - Prob. R11RQCh. 3 - Prob. R12RQCh. 3 - Prob. R13RQCh. 3 - Prob. R14RQCh. 3 - Suppose Host A sends two TCP segments back to back...Ch. 3 - Prob. R16RQCh. 3 - Prob. R17RQCh. 3 - Prob. R18RQCh. 3 - Prob. R19RQCh. 3 - Prob. P1PCh. 3 - Prob. P2PCh. 3 - UDP and TCP use 1s complement for their checksums....Ch. 3 - Prob. P4PCh. 3 - Prob. P5PCh. 3 - Prob. P6PCh. 3 - Prob. P7PCh. 3 - Prob. P8PCh. 3 - Prob. P9PCh. 3 - Prob. P10PCh. 3 - Prob. P11PCh. 3 - Prob. P12PCh. 3 - Prob. P13PCh. 3 - Prob. P14PCh. 3 - Prob. P15PCh. 3 - Prob. P16PCh. 3 - Prob. P17PCh. 3 - Prob. P21PCh. 3 - Prob. P22PCh. 3 - Prob. P25PCh. 3 - Prob. P26PCh. 3 - Prob. P27PCh. 3 - Host A and B are directly connected with a 100...Ch. 3 - Prob. P29PCh. 3 - Prob. P30PCh. 3 - Prob. P31PCh. 3 - Prob. P33PCh. 3 - Prob. P34PCh. 3 - Prob. P35PCh. 3 - Prob. P37PCh. 3 - Prob. P38PCh. 3 - Prob. P39PCh. 3 - Prob. P41PCh. 3 - Prob. P42PCh. 3 - Prob. P43PCh. 3 - Prob. P44PCh. 3 - Prob. P45PCh. 3 - Prob. P46PCh. 3 - Prob. P47PCh. 3 - Prob. P48PCh. 3 - Prob. P49PCh. 3 - Prob. P51PCh. 3 - Prob. P53PCh. 3 - Prob. P55P
Knowledge Booster
Similar questions
- Refer to page 35 for problems involving MapReduce. Instructions: • Implement a MapReduce program to solve the given problem (e.g., word count, data aggregation). Clearly outline the map and reduce functions, showing intermediate outputs for each step. • Test the program with a sample dataset and verify the correctness of the results. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS31Z9qoHazb9tC440 AZF/view?usp=sharing]arrow_forwardRefer to page 1 for problems on file system allocation. Instructions: Compare and simulate file allocation strategies (contiguous, linked, and indexed allocation). . Create a sample file system and allocate files using each strategy, showing intermediate structures. • Analyze space utilization and access time for each method. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS31Z9qoHazb9tC440 AZF/view?usp=sharing]arrow_forwardRefer to page 105 for problems on association rule mining. Instructions: • Implement the Apriori algorithm to identify frequent itemsets from the given dataset. • Compute support, confidence, and lift for each rule and interpret the results. Test the algorithm on a sample dataset and verify all intermediate computations. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS31Z9qoHazb9tC440 AZF/view?usp=sharing]arrow_forward
- Refer to page 25 for problems on symmetric encryption techniques. Instructions: • Implement a block cipher algorithm like AES or DES for the given plaintext and key. Show the key scheduling process and all encryption steps (substitution, permutation, etc.). Verify correctness by decrypting the ciphertext and recovering the original plaintext. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS31Z9qoHazb9tC440AZF/view?usp=sharing]arrow_forwardRefer to page 65 for problems on RSA encryption and decryption. Instructions: • Perform key generation by selecting primes, computing n, o(n), and e. • Encrypt the given plaintext and decrypt the ciphertext, showing all modular arithmetic calculations. • Validate your solution by confirming that decryption recovers the original plaintext. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS3IZ9qoHazb9tC440AZF/view?usp=sharing]arrow_forwardRefer to page 95 for problems on optimizing functions using gradient descent. Instructions: Apply gradient descent to minimize the given cost function. Derive the gradients for each parameter and show the iterative updates. • Plot the convergence of the cost function with respect to iterations and verify correctness. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS31Z9qoHazb9tC440 AZF/view?usp=sharing]arrow_forward
- Refer to page 90 for problems on parallelizing matrix multiplication. Instructions: • Implement a parallel matrix multiplication algorithm using thread-level parallelism. Analyze the speedup and efficiency compared to the sequential approach. • Include performance metrics and test the implementation on different matrix sizes. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS31Z9qoHazb9tC440 AZF/view?usp=sharing]arrow_forwardRefer to page 85 for problems involving the A* search algorithm. Instructions: Implement the A* algorithm for the given problem, defining the heuristic function explicitly. Trace the algorithm's steps, showing the open and closed lists at each iteration. • Verify the optimality of the solution by analyzing the heuristic used. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS31Z9qoHazb9tC440AZF/view?usp=sharing]arrow_forwardRefer to page 12 for problems on binary search trees (BSTs). Instructions: Construct a BST for the given set of elements. • Perform in-order, pre-order, and post-order traversals, showing the sequence of visited nodes. • Implement and explain operations such as insertion, deletion, and search. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS3IZ9qo Hazb9tC440 AZF/view?usp=sharing]arrow_forward
- Refer to page 55 for problems on cache memory. Instructions: • Solve a problem involving direct-mapped, set-associative, or fully associative cache. • Compute hit/miss ratios and explain the memory address mapping process. Show all calculations and verify your results with a sample memory access sequence. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS3IZ9qoHazb9tC440 AZF/view?usp=sharing]arrow_forwardRefer to page 45 for problems involving software design patterns. Instructions: • Implement the given design pattem (e.g., Singleton, Factory, Observer) in a programming language of your choice. Provide a detailed explanation of the design and its benefits in the given context. Verify correctness by showing outputs for sample inputs. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS3IZ 9qoHazb9tC440 AZF/view?usp=sharing]arrow_forwardRefer to page 8 for problems on shortest path algorithms. Instructions: Implement and analyze Dijkstra's or Bellman-Ford algorithm for the given graph. • Demonstrate all steps, including initialization and updates at each iteration. Verify the correctness of the solution by comparing it to an alternate method. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS3IZ9qo Hazb9tC440AZF/view?usp=sharing]arrow_forward
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