Nt1310 Unit 3 Assignment 1

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Thank you very much for the opportunity to interview for the position of Junior Network Administrator. You have requested my response to the following questions: What are some foundational concepts and components of a computer network? When explaining the foundational concepts of a network I will start with the different types of an area network. Here are some of the common types of area networks:
LAN - Local Area Network
WAN - Wide Area Network
WLAN - Wireless Local Area Network
MAN - Metropolitan Area Network
PAN - Personal Area Network
The mostly know area networks are LAN and WAN networks.
First I will explain what a computer network is. A computer network is an interconnected group of computers and/or devices that share information …show more content…
Components involved in a computer network: Hosts are the end device on the network or the source of information and another host will be the destination. A host can be a PC, an internet Server, a database server etc. Media is a twisted pair can be copper cable, fiber optic cable, coaxial cable or if wireless, it can be free-to-air radio frequency or some special wireless band. Wireless frequencies can be used to interconnect remote sites too. Hub is repeaters its main function is to connect hosts in a LAN segment. It is on Layer 1 of the OSI Model. Switches are also known as a bridge and is used to connect hosts to a LAN segment. Switches work on the Data Link Layer but they also can be set to work as a Layer 3 network device. Routers are Layer 3 devices on the Network Layer of the OSI model. Router are designed to make routing decisions for the data/information sent to some remote destination.
Gateways – can be a combination of software and hardware putting together works for exchanging data among networks which are using different protocols for sharing data. Firewall - Software or combination of software and hardware, used to protect users’

Nt1310 Unit 3 Assignment 1

ManageEngine Desktop Central is prone to a security-bypass vulnerability related to the password-reset feature. An attacker can exploit this to reset the application’s administrator password and gain administrative privileges. On 27 March 2015, a proof of concept (PoC) exploit code was released on multiple websites such as Seclist.org and PacketStormSecurity.com. Open source research did not reveal any instances of this vulnerability in the wild. However, this does not mean that malicious actors…

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Nt1310 Unit 3 Assignment 1

Brainstorming Problem - Charger- Kinetically Powered Charger - already made - need 6 hours of walking for 30 min of charge. (not efficient) ( I would have to create a better version ) Problem - cups don't fit into car cup holders - Adjustable Sized Car Cup Holder - MANY already made Problem - texting and driving - device that won’t start the car unless the phone is plugged in - auto shuts down the phone and charges it. Problem - No home music stand - desktop music stand - already made Problem -…

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Nt1310 Unit 3 Assignment 1

(SOMEONE) and found the following pointers: 1. SOMEONE infrastructure allows users to join any device to their office 365 account without using multifactor confirmation. When this serves as a good time saving feature – in the case of compromised account, attacker would have easy access to register rouge devices. 2. Microsoft Office 365 is having built-in capability to enforce multifactor verification for password reset process. This feature is not utilised. 3. The password configuration…

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Nt1310 Unit 3 Assignment 1

(2019). 3. What is the difference between a'smart' and a'smart'? Additional random value: Add a random value unique to each user that is combined with their password before hashing. This adds an additional layer of security, making it more difficult for attackers…

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Nt1310 Unit 3 Assignment 1

From my reference materials from Cisco and previous work history, I firmly believe that the #1 issue surrounding the deployment of a wireless network is wireless security. Specifically, passive monitoring, unauthorized access, and DoS attacks. Passive Monitoring – wireless networks are intentionally designed to propagate data throughout buildings and areas, almost always resulting in the radio signals traveling beyond the limits of the area. By default, wireless devices are configured for maximum…

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Nt1310 Unit 3 Assignment 1

Youtube was created In 2005 so users could upload, share and view videos. The site quickly gained popularity and was purchased by Google in 2006 for 1.65 billion dollars. As Youtube grew its impact became more significant. The platform allowed anyone to create content no matter your prior popularity. Content creators could find their audience and grow. Some of Youtube's competitors consist of; Vimeo, Daily Motion, and Wistia just to name a few. Youtube obviously isn't the only video sharing site…

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Nt1310 Unit 3 Assignment 1

three layers to be specific: 1. Presentation Tier 2. Business Tier 3. Data Access Tier 1. Presentation Tier: This converts and displays data into a human-readable frame. This tier is for the most part in charge of the UI of the application which manages the perception of data to the user. 2. Business Tier: It is mainly in charge of data trade between the UI and the database of the project. The business logic for the Ticket Purchase system would be available here. 3. Data Access Tier: This mainly…

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Nt1310 Unit 3 Assignment 1

DATA NETWORKS ASSIGNMENT 3 ANSWER 1 a) Figure 1 implies that Go Back-N is used because the given figure shows a cumulative acknowledgement which is a property of the Go Back-N protocol. Selective Repeat gives individual acknowledgements as the window shifts. b) Since individual acknowledgements are shown in figure 2, it is Selective Repeat protocol being used in this figure. c) Figure 2 depicts Selective repeat in which the sender window moves forward as it receives acknowledgement for the smallest…

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Nt1310 Unit 3 Assignment 1

3.1. Duration of Study Pending eIRB approval the estimated duration of this study is 2-years, in order to accrue up to 500 participants. This will begin after approval date and continue for two years after that. The expected duration to complete the online survey itself is approximately 30 minutes. This includes the time required for online consent. Once students submit their survey, they will have completed their participation in the study. 3.2 Study Sites Each study participant will complete…

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Nt1310 Unit 3 Assignment 1

How would you define a network? What is bandwidth? What is a NIC? List three types of media used for network connections. A network is a group of computers connected they could be connect just to one another or they could be connected to the internet, while internet itself is essentially one big network. Bandwidth is the bit-rate information about how much data is being sent or received; the bandwidth is normally measured in Mbps or megabits per second. Bandwidth can measure a number of things…

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