Yavik

Week 36: Security

This week's content had to do with the most crucial aspect of computer networking, Network Security. In the reading, I learned that the four critical properties of secure communications are confidentiality, Message Integrity, End-point authentication, and Operational Security. These four ideas are why we can send and receive

Week 36: Security

This week's content had to do with the most crucial aspect of computer networking, Network Security. In the reading, I learned that the four critical properties of secure communications are confidentiality, Message Integrity, End-point authentication, and Operational Security. These four ideas are why we can send and receive

Week 35: Transport Layer

This week I learned about the Transport layer and how TCP and UDP protocols are used to transmit and receive data. My main takeaway from this week's reading is how TCP is used to reliably transmit data from point host A to host B and how congestion control

Week 35: Transport Layer

This week I learned about the Transport layer and how TCP and UDP protocols are used to transmit and receive data. My main takeaway from this week's reading is how TCP is used to reliably transmit data from point host A to host B and how congestion control

Week 34: Application Layer

This week I learned about the Application layer. There are two main network application architectures which are client-server and peer-to-peer (P2P) architecture. With client-server architecture, there is a server that handles service requests from many other hosts called clients. On the other hand P2P architecture, there is minimal to no

Week 34: Application Layer

This week I learned about the Application layer. There are two main network application architectures which are client-server and peer-to-peer (P2P) architecture. With client-server architecture, there is a server that handles service requests from many other hosts called clients. On the other hand P2P architecture, there is minimal to no

Week 33-Computer Networking

This first week was quite interesting and informative. While I'm not entirely new to the concept of computer networking since I have acquired an CCNA certification before, I thoroughly enjoyed learning about the network protocols such as IP, TCP, and UDP once again. Additionally, the section covering the

Week 33-Computer Networking

This first week was quite interesting and informative. While I'm not entirely new to the concept of computer networking since I have acquired an CCNA certification before, I thoroughly enjoyed learning about the network protocols such as IP, TCP, and UDP once again. Additionally, the section covering the

Week 32: CST 334 Conclusion

This course was extremely brutal but rewarding to say the least. I spent a considerable amount of time staying up late to force myself to read through the dry content. But now that we're at the end I'm happy to walkaway with some understanding of how

Week 32: CST 334 Conclusion

This course was extremely brutal but rewarding to say the least. I spent a considerable amount of time staying up late to force myself to read through the dry content. But now that we're at the end I'm happy to walkaway with some understanding of how

Week 31: Persistence

Persistence is the third major topic in this course. As we now main memory or RAM is volatile thus data is lost when power to the system is lost. Hence the need for persistent I/O hardware such as hard drives and Solid state drives. On Intel CPUs, the Direct

Week 31: Persistence

Persistence is the third major topic in this course. As we now main memory or RAM is volatile thus data is lost when power to the system is lost. Hence the need for persistent I/O hardware such as hard drives and Solid state drives. On Intel CPUs, the Direct

Week 30

Semaphores Semaphores is a low level mechanism used for synchronizing tasks. Semaphores are essentially integer variable, but will always hold negative integers. There are two types of semaphores. First, counting semaphores, help tasks to be acquired or released numerous times. If the initial count = 0, the counting semaphore should be

Week 30

Semaphores Semaphores is a low level mechanism used for synchronizing tasks. Semaphores are essentially integer variable, but will always hold negative integers. There are two types of semaphores. First, counting semaphores, help tasks to be acquired or released numerous times. If the initial count = 0, the counting semaphore should be

Week 29: Concurrency

Concurrency relies on interlacing multiple processes where as multi-threading allows for multiple processes to run in parallel which is called parallelization. With multi-threading your program runs across multiple processors and each thread has its own program counter to run its instructions. By using multi-threading we are also able to avoid

Week 29: Concurrency

Concurrency relies on interlacing multiple processes where as multi-threading allows for multiple processes to run in parallel which is called parallelization. With multi-threading your program runs across multiple processors and each thread has its own program counter to run its instructions. By using multi-threading we are also able to avoid

Week 28:

This weeks reading covered paging, Translation Look Aside Buffers(TLB), and swapping. I’ll attempt to briefly summarize my understanding. Paging is one of methods for virtualizing memory which essentially divided physical memory into fixed size units called frames. But with paging and segmentation the major flaw is external or

Week 28:

This weeks reading covered paging, Translation Look Aside Buffers(TLB), and swapping. I’ll attempt to briefly summarize my understanding. Paging is one of methods for virtualizing memory which essentially divided physical memory into fixed size units called frames. But with paging and segmentation the major flaw is external or

Week 27: Memory Virtualization

Memory virtualization provides another layer of abstraction from the physical memory called address space. Programs use a stack to keep track of where it is in the function chain, allocate local variable,s and pass parameters, and returns values to and from routines. Heap is used for dynamically-allocated, user-managed memory

Week 27: Memory Virtualization

Memory virtualization provides another layer of abstraction from the physical memory called address space. Programs use a stack to keep track of where it is in the function chain, allocate local variable,s and pass parameters, and returns values to and from routines. Heap is used for dynamically-allocated, user-managed memory

Week 26 - Process

The process is essentially a running program that is compromised of instructions. OS's make use of the time-sharing technique to allow users to run as many concurrent processes as they want, this is where voluntary and involuntary context switching play a large role. The OS loads its code

Week 26 - Process

The process is essentially a running program that is compromised of instructions. OS's make use of the time-sharing technique to allow users to run as many concurrent processes as they want, this is where voluntary and involuntary context switching play a large role. The OS loads its code

Week 25: Beginning of Operating Systems

The main takeaways from my first week of this Operating Systems course were: 1. An operating system(OS) is responsible for managing the resources of a computer provides APIs, and standard libraries. An OS manages resources through virtualization. Virtualization makes use of the physical resources and transforms them into a

Week 25: Beginning of Operating Systems

The main takeaways from my first week of this Operating Systems course were: 1. An operating system(OS) is responsible for managing the resources of a computer provides APIs, and standard libraries. An OS manages resources through virtualization. Virtualization makes use of the physical resources and transforms them into a

Week 24

During this course we learned a lot about SQL and database but the empirical topics of this course has been the language SQL, designing schemas for databases and interacting with databases using Java. Initally we started of with learning how to query databases and then once we had a better