Mjulius513
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When I read Chapter 9, one thing that stood out to me was how important it is to check applications and service logs every day. These logs help show if something is going wrong, like a system not responding or a service failing. By checking these logs often, network technicians can fix small issues before they become big problems. It helps keep the network running smoothly and safely.
Another thing I learned was how important disaster recovery is. The chapter explained that things like power outages, hardware failures, or cyberattacks can happen at any time. That’s why it’s important to have a good disaster recovery plan and to keep backups of important data. Having clear steps to follow can save time and reduce stress during an emergency. It also showed me that being prepared and organized is a big part of network management.
When planning a network, it is important to follow key design policies to ensure the network is secure, reliable, and ready for growth. One important policy is security, which protects the network from threats by controlling access to data and devices. This includes using firewalls, strong passwords, and encryption to keep hackers and viruses out. Another key policy is the performance policy, which helps the network run smoothly by making sure there is enough bandwidth and the right placement of network devices like routers and switches. This prevents slow connections and system failures.
The scalability policy ensures the network can grow in the future without needing a full redesign. It allows more users, devices, or data to be added as needed. By following these three policies—security, performance, and scalability—network planners can create a strong, efficient, and flexible network that meets both current and future needs.I believe I am a good person who faces the challenges of life with strength and hope. Every day, I thank God for my life, my health, and the strength to keep going. I know that God’s blessings are a big part of my life, but I also understand that I have to do my part, too. I try to live right, treat others with kindness, and do my best even when things are hard. I believe that I am worthy to enter the kingdom of God, not because I am perfect, but because God is loving and forgiving. He knows our hearts and sees our efforts. The Lord forgives us when we fall short and helps us grow. His love is always there, no matter what mistakes we’ve made. I trust in His grace and believe that as long as I keep trying and keep my faith, I will always have a place with Him.
“For by grace you have been saved through faith, and that not of yourselves; it is the gift of God.” — Ephesians 2:8Two strong ways to protect a server or network are firewalls and Zero Trust Network Access (ZTNA). A firewall blocks all traffic unless it’s allowed, helping stop unwanted access. ZTNA adds more safety by not trusting any device by default. Every action must be approved, even from known networks, making it harder for threats to get in. What other methods do you think are important for securing a network?
Cloud and virtual environments differ mainly in ownership, scalability, and cost. Virtual environments run on hardware owned by the company, while cloud environments use remote servers owned by providers like AWS or Azure. Cloud environments are easier to scale and adjust. They also have a pay-as-you-go cost model, unlike virtual environments, which require large upfront hardware and maintenance costs.
A virtual environment uses software to create multiple virtual machines (VMs) on one physical computer or server. It is often managed on-site, meaning the organization owns and maintains the hardware. In contrast, a cloud environment provides resources like servers, storage, and applications over the internet through a cloud service provider. The company does not own the hardware and accesses everything remotely.
Another difference is how they scale. In a virtual setup, adding more resources may require buying and installing more physical hardware. In cloud environments, resources can be added or removed easily based on current needs, often within minutes, without needing to install anything.
The cost is different. Virtual environments usually involve higher upfront costs for hardware and setup. Cloud environments work on a pay-as-you-go model, where companies only pay for what they use. This makes cloud solutions more flexible and cost-efficient for many businesses, especially small to medium-sized ones.
GeeksforGeeks. (2024). Difference between Cloud Computing and Virtualization. https://www.geeksforgeeks.org/difference-between-cloud-computing-and-virtualization/
To help harden servers and networks, one important method is to disable unused services and ports. Servers often come with many services running by default, and not all of them are needed. Each open port or active service can be a way for attackers to get in. By turning off the ones you don’t use, you reduce the number of ways someone could attack your system.
Another helpful method is setting up strong password policies. This means requiring users to create passwords that are hard to guess, with a mix of letters, numbers, and symbols. Also, changing passwords regularly and not reusing old ones adds more protection. Weak or reused passwords are one of the most common ways hackers get access.
Some more ways to strengthen the security of servers and networks. When you combine these methods with other measures, like firewalls and regularly updating software, you can better protect against many cyber threats.
I agree that cybersecurity is very important for small and medium-sized businesses. Hackers can attack through 5G networks and steal important data. They hide viruses in fake apps and bad links, which can hurt both businesses and their customers. We need to find quick ways to stop these attacks and protect mobile phones, data, and networks from abuse.
That’s powerful — and I can relate. I stopped smoking Newport’s cold turkey back in 2021. It wasn’t easy, but God gave me the strength to walk away from it completely. Now, I’m facing a new battle with social media addiction. It creeps in silently, stealing time, peace, and attention that should be focused on God and my real-life purpose. Just like with smoking, I know the answer is the same: I need to cut it out. No excuses, no slow fade — just a clean break with God’s help. I’m praying for the strength to replace scrolling with seeking Him and fill my mind and heart with His word instead of endless feeds. God has already proven He can set me free once; I trust Him to do it again. He is bigger than any addiction. He is the healer of broken habits. With Him, true freedom is always within reach.
You explained it well! IEEE 802.11ac and 802.11ax are great for fast wireless connections at home, offices, and even in vehicles, mainly using the 5 GHz band. 802.11n was an important step, too, as it used multiple antennas to boost speed and work on both 2.4GHz and 5GHz. It also brought better security and data handling features.
The two main goals are growing the business and keeping client information safe. Growing the business means attracting more customers, making more sales, and improving how the business works. Many companies use technology and new ideas. Keeping customer information safe is also important because people trust businesses with their personal details and expect their information to stay private.
However, there are also big problems organizations face. One serious threat is a DDoS attack (Distributed Denial of Service). This is when hackers overload a company’s website or system with too much traffic, causing it to slow down or crash. It can stop people from using the service and hurt the company’s image. Another threat is a rootkit, a type of malware that hides deep inside a computer system. It lets hackers control the system without being noticed. These threats show why strong security is needed in every organization.
Two common wireless LAN standards are IEEE 802.11n and IEEE 802.11ac. The 802.11n standard was released in 2009 and is known for improving speed and range compared to earlier versions. It can operate on 2.4 and 5 GHz frequencies and supports speeds up to 600 Mbps. It uses a technology called MIMO (Multiple Input Multiple Output), which allows the router to send and receive more than one data signal at a time, improving performance. The 802.11ac standard came later and brought even faster speeds, up to several gigabits per second. It only uses the 5 GHz band, which is usually less crowded than 2.4 GHz, helping to reduce interference. This standard is great for streaming videos, online gaming, and transferring large files. Both standards help make wireless internet faster and more reliable, especially in homes, schools, and businesses where many devices are connected at once.
Great explanation! You clearly showed how switches and routers work differently. Switches connect devices within a local network using MAC addresses, while routers send data between networks using IP addresses. Your office example made the concept easy to understand. Knowing the difference is important for building strong, efficient networks. Everything was explained simply and clearly. Nice job!
This explains how TCP, IP, and DNS work together to make internet communication smooth and reliable. You clearly showed how each protocol has its job, but they all work as a team. I like how you used the example of visiting a website; it helps make the process easy to understand. DNS translates the web address into an IP address is like looking up a phone number in a contact list. Then IP makes sure the request gets to the right server, kind of like sending a letter to the right house. Finally, TCP is like the mail carrier who checks that all the pieces of the message arrive safely and in the right order. It’s amazing how fast this all happens, and most people don’t even realize it. Your paragraph did a good job of showing how these protocols keep the internet running smoothly without us even noticing all the work going on behind the scenes.
The major difference between switching and routing lies in how they move data across a network. Switching is used within a local area network (LAN) to connect devices like computers, printers, and servers. It uses MAC (Media Access Control) addresses to forward data to the correct device within the same network. A switch learns the MAC addresses of the devices connected to it and sends data only to the intended recipient, making communication faster and more efficient.
Routing is used to connect different networks, such as linking a home network to the internet. Routers use IP (Internet Protocol) addresses to figure out the best path for data to travel between networks. Unlike switches, routers look at the destination IP address and choose the most efficient route for sending data, often passing through multiple networks before reaching the destination. Switching works within one network to connect devices, while routing connects different networks to move data between them. Both are important for building a reliable network.
