Lan Topologies and Communication Tech.
Transmission Media
Brief Overview of HTML
Firewall Protocols, Port Numbers, URLs, DNS, NAT
All-star Review
100
What topology is listed above?
- Ring topology
100
What is the difference Guided and Unguided Media?
- One depicts a physical connection media
- One depicts a wireless connection method
100
HTML stands for
Hypertext Markup Language
100
What Port number is FTP?
21
100
RAM stands for..
Random Access Memory
200
What is the difference between a ring and star topology?
- In a star topology, a computer or a network device, such as a switch, serves as a central point, or hub, for all messages.
- In a ring topology, users are all connect with one another with a cable going from one computer to another until it connects back to the first computer.
200
Bandwidth is...?
Bandwidth—The speed the medium is able to handle, measured in bits per
second.
200
What does the <title> </title> tag do?
Tells the user what webpage is displayed and appears in the browser’s title bar.
200
What does DNS stand for and what function does it provide for URLs
DNS (Domain Name System) – A method of translating IP addresses for Domains into Internet domain names or vice versa
200
Who is Ada Lovelace known as and who did she assist?
- The World's First Programmer
- Charles Babbage
300
In a Bus topology, describe the path if a user wishes send data another
Each computer, or node, on the network is connected to a main communication line, or bus. All the computers “listen” to the bus, but only the one with the correct address responds.
300
Twisted Pair cables consist of..?
A pair (sometimes pairs) of insulated wires twisted together and
used as a transmission
medium in networking
300
What tag specifies links to another web page?
<a> </a> tags
300
What is the technique NAT and what is its function?
NAT (Network Address Translation) – Used to translate an private IP address to a public IP address.
300
What are the 4 categories of attack?
- Repudiation
- Modification
- Access
- Denial of Service
400
1 Mbps versus 1 Gbps. Which is faster and why?
1 Gpbs as 1 Gpbs translates to 1000 Megabytes being transmitted at once.
400
If a cat 5 cable delivers a maximum frequency of 100 MHz, what is the maximum frequency of a Cat 6 cable?
- 250 MHz
400
What provide the boundaries for an input form on the Web page?
<form> </form> tags
400
https://www.classrooms.google.com
Using the provided URL, which is the full name of the domain?
400
Thanks to the Jacquard Loom, not only can we different forms of clothings, but what critical programming technique was introduced?
- Binary, the idea of true/false or 1/0 was introduced as illustrated in the threading process.
OR
- Input, Process, Output (IPO) as demonstrated when inputting a punch card with a combination of holes or combination of instructions to receive the end-product
500
What is a mesh topology? Give 1 benefit it has versus modeling with other topologies
Much like a ring topology, A mesh topology is a network setup where each computer and network device is interconnected with one another. This topology setup allows for most transmissions to be distributed even if one of the connections goes down.
500
From start to finish, explain the OSI/ISO model
1. Physical - Physical connection
2. Data link - How data travels
3. Network - Connection over Network
4. Transport - Ensuring all data within a given message has not lost any critical parts
5. Session - Maintaining connection between Client & Server or Peer-to-Peer
6. Presentation - How data is presented in application (IE : ASCII or Unicode)
7. Application - how data reaches its destination in the receiver's application
500
There is something wrong with the markup below. Explain what it is?
- the table cell is missing an end tag </td> after Reliable Delivery
500
I am black-hat hacker that just disabled ports 25 and 110 of a user I am trying to immobilize. How does this negatively affect the victim?
- Unable to send or receive messages from any email server
500
Explain the difference between a Hard Disk Drive, Solid State Drive, and RAM?
- RAM are sticks of volatile memory that store running applications temporaily
- Hard Disk Drives are components of non-volatile memory that act as permanent storage for system. This is done by a pin that writes onto the internal disks inside by a laser. They are cheaper but are not as long-lasting as a Solid-State Drive
- Solid-State Drives are also components of non-volatile memory that act as permanent storage but do not have any moving components.