A problem statement from the beginnning of the Cyber Security Studio were ‘How can I a benefit from completing a Cyber Security Credit?’, ‘Can I use what I learnt from this subject to be prepare for future interviews in the Cyber Security World?’ and ‘Where do I see myself in Cyber Security in next 5-10 years?’. These answer to questions are currently what I do not have and trying to solve by the end of the studio.
However, I am slowly solving one of my problem statement by applying for an interview at UTS under the role of Security Analyst Intern and was offered an interview on 22nd of February.
Prior to the interview, I had a help from a friend who knew someone who had previously had the interview in the previous years and was successful. Having no prior industrial experiences with IT and networks, they provided hints and tips of certain topics I should learn. I would need to learn basic networking theory, subnetting and OSI model.
This is going to be artefacts page of evidence I what I have found from researching and watching videos.
Please Do Not Touch Steve’s Pet Alligator
Physical Data-link Network Transport Session Presentation Application
The responses I should have gave instead.
What infrustructure have you implemented at home?
Layer 2 - Data Link * Frame * Switches, Ethernet, Bridges * MAC Address
Layer 3 - Network * Packet * Routers, IP, ICMP
I said 128. It’s not. It’s 1.
Enumerating from my mistake. 11111111.11111111.11111111.00000000
128 | 64 | 32 | 16 | 8 | 4 | 2 | 1
There are 8 bits of host. There are 24 bits of network.
The subnet mask should be: 255.255.255.0
Using the last bit of network which is an increment of 1.
1 host in 1 subnet 0.0.0.0/24 0.0.0.1⁄24 0.0.0.2⁄24
What can this be?
That means there are 1 network per subnetted network.
I said 128 because I got mistaken by how many hosts there are. One octet of bits = 128+64+32+16+8+4+2+1 = 255.
Lyda.com 2019, ‘Learning Subnetting’, Lynda.com, viewed 20 Februrary 2019, https://www.lynda.com/iP-tutorials/Understanding-binary-basics/184143