Skip to main content

CST311 Week 5 Journal

 This week we learned about the network layer and focused on the data plane. I learned about two important concepts which was forwarding and routing. Forwarding, dealing with how data packets are moved between devices in a network, and routing, which determines the paths the data packets take across networks. In our lab assignments we learned about Network Address Translation (NAT), which allows communication between private network devices over public networks. The big assignment this week was our group programming assignment, the server chat program. I found this assignment to be particularly interesting because it provided me with a very basic but fundamental understanding of how chat programs are built.

Comments

Popular posts from this blog

CST311 Week 6 Journal

 This week, we developed a deeper understanding of the network control plane and explored routing algorithms such as Dijkstra and Bellman-Ford, focusing on how they determine the most efficient paths for data transfer. We also learned about the SDN control plane, which allows for dynamic network management and routing. In addition to the theory learned this week, we conducted a network lab exploring the use of a basic SDN controller using Mininet and Wireshark. We looked at how Internet Control Message Protocol (ICMP), can be used for network diagnostics, particularly for network troubleshooting with tools like ping and traceroute.

CST335 Week 7 Journal Entry

 This week I learned about input/output (I/O) devices and their interactions with the operating system (OS). Two types of devices I learned about were block and character devices. Block devices, like hard drives and SSDs, store data in fixed-size blocks and allow random access, making them ideal for large data transfers. Character devices, such as keyboards and mice, handle data streams one character at a time, supporting sequential access. The OS play a crucial role in managing these devices through device drivers that provide a standard interface to interact with the hardware. Performance characteristics of hard drives, such as seek time, rotational latency, and transfer rates, are pivotal in determining overall system efficiency. By calculating transfer rates for different workloads, I learned how disk access patterns significantly impact performance. Additionally, understanding RAID levels provided insights into how redundancy and striping enhance data reliability and performan...

Leetcode Practice Reflection 1.Two Sum

LeetCode Practice Reflection - 1. Two Sum Date:   19MAY25 What I Worked on Today: Practiced doing LeetCode Problem 1.Two Sum. What I Learned: - How to use the enumerate() function - How to optimize possible solutions after considering brute force methods - How to declare a new dictionary (key value pair) Code Snippet I Wrote or Studied: class Solution(object): def twoSum(self, nums, target): seen = {} for i, num in enumerate(nums): compliement = target - num if compliment in seen: return [seen[compliment], i] seen[num] = i In My Own Words: This function takes in a list of numbers and will return the index of the two numbers that add up to the provided target value. The way this program works is that it creates a dictionary called "seen". It will then iterate through the list of numbers and use the enumerate function to keep track of the index and the value of the specific item in the provided list. The for loop will calculate the compliment numbe...