What is Networking

What is the key term for devices that are connected together?

Network

What is the Internet?

Who invented the World Wide Web?

Tim Berners-Lee

Identifying Devices on a Network

What does the term "IP" stand for?

Internet Protocol

What is each section of an IP address called?

Every section of an IPv4-address can represent decimal values reaching from 0 to 255. To represent these numbers using the binary system 8 digits are required. Therefore the individual sections are called:

Octets

Note: In IPv6 every section is encoded in hexadecimal and can represent values from 0000 to ffff or 0 to 65535. To represent this in the binary system 16 digits are required therefore the sections are called Hextets

How many sections (in digits) does an IP address have?

Every IPv4-address consists of 4 octets every IPv6-address consists of 8 hextets. The question is aimed at the IPv4 standard. Therefore the answer is:

4

What does the term "MAC" stand for?

Media Access Control

Deploy the interactive lab using the "View Site" button and spoof your MAC address to access the site. What is the flag?

Click on the "View Site" button. The interactive lab will be deployed. In the lab 2 devices are shown: Bob and Alice. The animation shows that Alice is able to send packages to the "Try Hack Me"-site. If Bob sends a request however the request is blocked by the router and thrown in the bin. To get the flag we have to spoof the MAC-Address. To do so we have to copy the MAC-Address used by Alice. After copying the MAC-Address of Alice and pressing the "Request Site"-button our request will be passed to the "Try Hack Me"-site and we will receive our flag:

THM{YOU_GOT_ON_TRYHACKME}

Ping (ICMP)

What protocol does ping use?

ICMP

What is the syntax to ping 10.10.10.10?

ping 10.10.10.10

What flag do you get when you ping 8.8.8.8?

To complete this task we have to deploy the site provided by THM. By doing so a terminal will be opened with a input-bar above it. In this bar we can insert the target IP-address of 8.8.8.8 resolving in the command "ping -c 4 8.8.8.8" being typed into the terminal. Pressing the "Send Ping Request"-button the ping command will be executed. After a short time the task will be completed and the requested flag will be shown:

THM{I_PINGED_THE_SERVER}

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