30 Questions
What is the significance of the number 255 in an IP address?
It is the maximum value any number in an IP address can have.
What is the primary function of hyperlinks in the context of the World Wide Web?
To allow users to navigate between different websites and pages.
Why is it important for every device on a network to have a unique IP address?
To enable devices to communicate with each other without conflicts.
What does IPv6 refer to in the context of internet communication?
The transition from IPv4 to a newer system of assigning IP addresses.
In networking terms, what does the term 'subnet mask' typically refer to?
A technique for partitioning networks into smaller subnetworks.
What is the relationship between Internet Protocol (IP) and Internet Protocol version 4 (IPv4)?
IP is a broader term covering IPv4 as well as other network protocols.
What is the purpose of DHCP in a network?
To assign unique IP addresses to devices
Why is manually assigning IP addresses to devices considered tedious and error-prone?
It can lead to assigning the same IP address to multiple devices
What was a common issue with older routers regarding IP address assignment?
Remembering which device had which IP address
Which technology uses radio waves to provide wireless high-speed Internet access?
Wi-Fi
What happens if two devices on a network are accidentally assigned the same IP address?
Neither device functions correctly
In the context of IP addresses, what does DHCP stand for?
Dynamic Host Configuration Protocol
What kind of information can be used as identifiers to distinguish your device from others?
Family IDs
Which security measures are mentioned in the text to protect a computer system?
Implementing IDS/IPS
What is the purpose of conducting an investigation in the context of cyber security awareness?
To provide evidence to aid in solving cases
Which practice is recommended to protect oneself from being traced back by suspects?
Surfing online with minimal footprints
What does the term 'Netizen Power!' refer to in the provided text?
The influence and recognition gained through online behavior
Which type of account information is suggested to be known about a target during an investigation?
Occupation and family details
Which type of evidence must be produced when the subject of inquiry is the contents of a document?
Original document
Under what circumstances can a copy of a document be considered as an original document?
If the copies are executed at or about the same time with identical content
In which case can evidence other than the original document be admissible under the Best Evidence Rule?
When examining the original document would cause great loss of time
What is required for evidence from a document to be admissible in court under the Best Evidence Rule?
Presentation of the original document itself
When can a party offer a copy of a document instead of the original under the Best Evidence Rule?
If great loss of time would occur by examining the original
What must be proven to allow for evidence other than an original document to be admissible under the Best Evidence Rule?
The impossibility to produce the original document
What is the primary function of a cache?
Store data for immediate use
Which search engine is known as a dedicated cache search engine?
Wayback Machine
What type of information can metadata provide?
Data about data creation
What is the benefit of viewing a cached version of a webpage?
Reduces your footprint by not connecting to the live page
Which tool can assist in geolocating images?
Google Images
What does the Wayback Machine primarily cache?
Web pages
Study Notes
Online Investigation Internet
- The Internet is a worldwide system of computer networks, also known as "the Net."
- It's a network of networks where users can get information from any other computer.
World Wide Web
- The World Wide Web (WWW or W3) refers to all public websites or pages accessible on the internet.
- These pages are interconnected by hyperlinks, providing information in different formats (text, images, audio, and video).
IP Address
- An IP address is a unique number assigned to a device on a network.
- It's usually represented as four sets of numbers separated by a dot (e.g., 10.0.0.1).
- Each number can range from 0 to 255, with 0 and 255 sometimes having special meanings.
- Every device on a network must have a unique IP address.
IPv4 and IPv6
- IPv4 is the current internet protocol used by most devices.
- The internet is transitioning to IPv6 over the next ten years.
Static vs Dynamic IP Address
- A static IP address is assigned manually to each device on a network.
- Dynamic IP addresses are assigned using DHCP (Dynamic Host Configuration Protocol), which reduces errors and maintenance.
DHCP
- DHCP is a protocol that assigns a unique IP address to each device on a network.
- When a device connects to the network, it sends a DHCP discovery packet, and the router assigns an IP address.
Wi-Fi
- Wi-Fi is a wireless networking technology that uses radio waves to provide wireless high-speed internet access.
Documents as Evidence
- Documents consist of writing or material containing letters, words, numbers, figures, symbols, or other modes of written expression.
- The best evidence rule states that the original document must be produced in court, except in certain cases.
Online Investigation
- Investigation involves gathering evidence to aid in solving a case.
- Cyber security awareness is crucial to protect oneself online.
Cyber Security Awareness
- Protect yourself first by using secured computer systems, passwords, anti-virus software, firewalls, and VPNs.
- Be aware of risks, such as malware, phishing links, and equipment compromise.
Social Media Investigation
- Minimize risks by using dedicated computers and internet connections.
- Use investigation tools and software, following protocols and avoiding laws violation.
- Document everything properly.
What Can be Investigated
- Online accounts, photos, videos, comments, likes, shares, emails, and other online activities can be investigated.
Maximizing and Utilizing Search Engines
- The Internet Archive (Wayback Machine) is a dedicated cache search engine that stores data for faster access.
- Use the cache to reduce your footprint and access older versions of web pages.
Tools for Reverse Image
- Google Images, TinEye, Yandex Images, and Bing Image Match are tools used for reverse image searching.
- Metadata helps summarize data and includes information such as creation means, time, purpose, author, location, and file size.
Geolocating Images
- Extract, research, and verify image metadata to geolocate images.
Test your knowledge on fundamental concepts of the Internet including networks, World Wide Web, and hyperlinks. Learn about the structure and functionality of the online world.
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