Mile2 Cybersecurity Certifications

Cybersecurity Certifications

Isabelle Tubbs

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Viewing 15 posts - 1 through 15 (of 75 total)
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  • in reply to: OCU C)NP D Week 03 Lesson 06 Discussion #108126
    Isabelle Tubbs
    Participant

    Hi, Carlos! I agree that growth and customer satisfaction are both important for an organization. Companies do need to focus on maintaining good services to customers in the present time, but they also need to be prepared for growth in efficiency and technology for the future. Cybersecurity risks and economic instability can threaten these two goals. If information is leaked, customers will feel violated and it may be hard to recover. Additionally, economic instability can make it harder for businesses to grow, and the uncertainty of product or price can create a problem for customers.

    in reply to: OCU C)NP D Week 03 Lesson 05 Discussion #107930
    Isabelle Tubbs
    Participant

    Hi, Carlos! Great work on describing the Ethernet as a LAN standard and Wi-Fi as a wireless LAN standard. These two standards achieve so much in the world of technology and networking. As you mentioned, the Ethernet has the importance of being a backbone for most wired networks, and Wi-Fi’s convenience of high speeds and mobility make it a valuable resource.

    in reply to: OCU C)NP D Week 03 Lesson 06 Discussion #107918
    Isabelle Tubbs
    Participant

    Two major goals of organizations are security and consistency. Security is a huge part of any organization because it is important to protect the information and resources that are being stored from the threat of hackers or accidents. Security measures such as anti-malware, software policy controls, and company policies that educate users must be put in place to protect against attacks from hackers (like viruses or phishing) and from accidents (such as employees accidentally deleting or sharing sensitive information).

    An organization’s goal of consistency means that the company wants to continue to keep a good stock of their resources, and they want their resources to work consistently when used or accessed. For example, to protect against the threat of using incorrect equipment or parts, everything that is purchased (such as a new network device component) must be bought from a trusted manufacturer. Additionally, everything must be configured correctly to ensure it is being used properly.

    in reply to: OCU C)NP D Week 03 Lesson 05 Discussion #107915
    Isabelle Tubbs
    Participant

    Wireless LAN standards have changed greatly since the original, which only allowed 2 Mbps network speeds and limited device compatibility. Now, more WLAN standards have gotten new features and increased their speed capabilities. Two of the more recent ones to mention are 802.11ac and 802.11ax.

    802.11ac, used in 2013, can maintain speeds up to 7 Gbps in the 5 GHz band. It has a great amount of throughput and uses channels with 80 MHz. 802.11ac also utilizes orthogonal frequency division multiplexing, or OFDM. In addition, it uses multiple input/multiple output (MIMO) to utilize antennas more efficiently (IEEE Standards Association, 2023).

    802.11ax added the ability for the network to be apportioned across different devices (IEEE Standards Association, 2023). Compared to other standards, it has a better range outdoors and works better in crowded locations (IEEE Standards Association, 2023).

    References
    IEEE Standards Association. (2023, May 16). The Evolution of Wi-Fi Technology and Standards. https://standards.ieee.org/beyond-standards/the-evolution-of-wi-fi-technology-and-standards/#:~:text=IEEE%20802.11b%E2%84%A2%2C%20or,as%20video%20and%20cloud%20access.

    in reply to: OCU C)NP D Week 03 Devotion #107913
    Isabelle Tubbs
    Participant

    I think this week’s devotional can speak to everyone because everyone has experienced some sort of struggle with sin and addiction, although it is probably with different issues. Even the apostle Paul described it as doing what you do not want to do, and not doing what you do want to do. I like that the devotional said to cut out the addiction completely instead of just adjusting to having the addiction. It can often feel easier to just keep the addiction and try to limit it ourselves. However, we are not that strong to control these things completely, and just keeping the addiction indefinitely can make its grip even stronger. I am so glad that God loves us enough to not want us to stay enslaved to the wrong things and that He is powerful to save us and set us free from these things. This can be in a moment or a long process, but walking with Him will lead to ultimate freedom and love.

    in reply to: OCU C)NP D Week 02 Lesson 04 Discussion #107886
    Isabelle Tubbs
    Participant

    Hi, Carlos! I like how you summarized the difference between switching and routing at the end. It definitely helps describe the way in which they work and what each is focused on. For example, because routing is directing network traffic, it should naturally control complex paths, traffic, and network types. Switches, on the other hand, deliver data efficiently, so they are focused more on finding the right communication path.

    in reply to: OCU C)NP D Week 02 Lesson 03 Discussion #107885
    Isabelle Tubbs
    Participant

    Hi, Carlos! I agree that TCP’s role in data transfer is important for a variety of services. In my post, I also mentioned HTTP, but I like that you introduced Internet Protocol and how that plays a role with HTTP. The web would not get very far without IP directing the paths involved with HTTP.

    in reply to: OCU C)NP D Week 02 Lesson 04 Discussion #107873
    Isabelle Tubbs
    Participant

    Using switching and routing (depending on an organization’s needs) are both important actions to take within a network, but the two concepts do have some differences. The main difference between the two is related to what layer they are on because that indicates what each process focuses on. Switching occurs on the data link layer. With switching, packets of data are sent between a network’s devices by referencing a MAC address table (Snabay Networking, 2024). Routing, on the other hand, does establish an efficient path for data packets, but it can apply to not just one network but also moving it across other networks (Snabay Networking, 2024). A routing table is a large part of the information that routing uses to do this. As a result, even though switching and routing both involve the movement of data packets, the information they reference and the layer they operate on are different.

    References
    Snabay Networking. 2024. What is Routing and Switching? Difference Between Routing and Switching. https://snabaynetworking.com/what-is-routing-and-switching-difference-between-routing-and-switching/

    in reply to: OCU C)NP D Week 02 Lesson 03 Discussion #107859
    Isabelle Tubbs
    Participant

    One important core protocol is Transmission Control Protocol, or TCP. TCP controls communication in an ordered and precise way by using connections, flow control, and verifications. TCP can establish and verify its connections by using a series of packets and acknowledgements sent between the two parties, such as the three-way handshake. TCP can also maintain good flow control by using a sliding window protocol. This protocol numbers the segments in a specific order so that the recipient receives the right number of segments at a time.

    Two additional core protocols that are closely related are HTTP and HTTPS. HTTP, which runs on TCP port 80, is in charge of the process of transferring data between a web browser and a web page. This helps the user to connect with the website they are using. HTTPS is similar to HTTP, but HTTPS is much more secure because of its use of encryption. Additionally, HTTPS runs on TCP port 443.

    in reply to: OCU C)NP D Week 02 Devotion #107857
    Isabelle Tubbs
    Participant

    Hearing from God above any other voices is so important and needed in our lives. It can be easy to fall into the trap of listening to just any voice that we hear online or even believing whatever we think in our minds. However, focusing on and listening to God’s voice is what is beneficial to our spiritual lives. Otherwise, it can be hard to know what the truth is if we are not listening to the truth: Jesus. Hearing from God shows us our identity in Him. In Matthew 17:6, God spoke about Jesus’s identity as God’s Son. God also speaks to us about who we are in Him and how much He loves us. This verse also took place pretty early in Jesus’s ministry. Listening to God helps us stay rooted in who we are in Him and gives us hope to continue in what He has called us to do.

    in reply to: OCU C)NP D Week 01 Lesson 02 Discussion #107791
    Isabelle Tubbs
    Participant

    Hi, Carlos! Nice work describing routers, switches, and access points. They each have an important role in what they do, and an organization’s network could include all of these devices together so understanding each one and what it covers is necessary. Like you mentioned, an organization could use both a switch to let its devices communicate across the network, while also using a router to control the paths of data packets and IP assignment.

    in reply to: OCU C)NP D Week 01 Lesson 01 Discussion #107790
    Isabelle Tubbs
    Participant

    Hello, Carlos! You described a great troubleshooting process. I like that you incorporated ways to prevent wasting time and/or money. For example, you said that your plan of action should involve something with the least disruption. If the action with the least amount of disruption truly fixes the problem, it should definitely be attempted first so that there are not unnecessary costs.

    in reply to: OCU C)NP D Week 01 Lesson 02 Discussion #107731
    Isabelle Tubbs
    Participant

    Network devices have different functions and knowing when to use each one is vital. Three examples of network devices are repeaters, gateways, and bridges. Repeaters (or extenders) are helpful for extending a signal over a greater distance because they take the signal that they receive and retransmit that signal at a higher level. If a company is quite large and needs their network to spread throughout the company buildings, then a repeater could be used to ensure that areas in the company can connect to the same network. A gateway is found where communication paths meet so that the gateway can send the data across different networks. As a result, gateways are used for interactions between different networks and for control of the data that goes across those networks (GeeksforGeeks, 2025a). Bridges connect several LANs to one main LAN by creating different segments (GeeksforGeeks, 2025b). By creating separate collision domains, bridges increase bandwidth to nodes and reduce collisions.

    References
    GeeksforGeeks. (2025, July 23). What are Gateways in Computer Network? https://www.geeksforgeeks.org/computer-networks/what-are-gateways-in-computer-network/
    GeeksforGeeks. (2025, July 23). What is Bridge in Computer Network – Types, Uses, Functions & Differences. https://www.geeksforgeeks.org/computer-networks/what-is-bridge-in-computer-network-types-uses-functions-differences/

    in reply to: OCU C)NP D Week 01 Lesson 01 Discussion #107732
    Isabelle Tubbs
    Participant

    The first thing I would do when troubleshooting is gaining as much information as possible and going from there. Knowing what exactly the issue could be affecting can help to know what steps to take. Learning more about the issue can come from testing the device and asking the user good, clear questions so that they can give information on what they have experienced on their device.

    After using this information critically, this should narrow down what the cause could be. From there, I would make a plan and complete the steps of that plan. After taking these steps, I would make sure that the problem has been fixed by running some tests. If it has not been fixed, I would go through the information again and take similar steps to find another solution. If it has been fixed, then I would let the user know what happened and how to prevent the issue in the future, and I would document the issue and what fixed it to keep a record of it.

    in reply to: OCU C)NP D Week 01 Devotion #107707
    Isabelle Tubbs
    Participant

    What Jesus asks is such a personal and necessary question that we all have to address in our lives. Thankfully, it is not related to what others say or even think about Him. It is related to what we say and believe that Jesus is. For me, Jesus is so much; He is my Savior, Friend, Redeemer, and more. It is hard to describe Jesus because He is so big that words cannot really sum up everything about Him. He loves us so much that He came to earth to save us, and just knowing that is amazing. Because of who He is and what He has done for us, we can be in a relationship with Him and be saved and set free. From this, we feel led to worship and serve Him, and even when we fall short, He is gracious enough to help us serve Him as we ask for His help to do so. He is with us every step of the way, and that is amazing.

Viewing 15 posts - 1 through 15 (of 75 total)

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