Author | Lightnews

C.Ellyson

@techwithellyson.bsky.social

31 followers 33 following 310 posts

AWS ☄️ cloud security engineer ☄️ cybersecurity specialist ☄️ Ethical hacker. I help people start their tech Career for free, just send me a message

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C.Ellyson @techwithellyson.bsky.social · 3h

Blockchain Security Quiz: What is multi-signature (multisig) for?
A) Creating multiple chains
B) Requiring multiple approvals for transactions
C) Multiplying rewards
D) Signing multiple blocks

C.Ellyson @techwithellyson.bsky.social · 7h

Blockchain Security Quiz: What is a 51% attack?
A) Hacking 51% of wallets
B) Controlling over half the network's mining power
C) Encrypting 51% of blocks
D) Adding 51% more nodes

C.Ellyson @techwithellyson.bsky.social · 15h

Blockchain Security Quiz: Which vulnerability affects smart contracts on Ethereum?
A) SQL injection
B) Cross-site scripting
C) Buffer overflow
D) Reentrancy attack

C.Ellyson @techwithellyson.bsky.social · 22h

True 😄

C.Ellyson @techwithellyson.bsky.social · 1d

Blockchain Security Quiz: What does 'private key' secure in blockchain?
A) Network consensus
B) Public ledger access
C) Ownership of assets
D) Block validation

C.Ellyson @techwithellyson.bsky.social · 1d

Blockchain Security Quiz: What's a common way to prevent double-spending?
A) Unlimited transactions
B) Centralized authority
C) Proof of Work
D) Anonymous users

C.Ellyson @techwithellyson.bsky.social · 1d

Blockchain Security Quiz: What is sybil attack in blockchain?
A) Modifying past blocks
B) Stealing private keys
C) Overloading the network
D) Creating multiple fake identities

C.Ellyson @techwithellyson.bsky.social · 2d

DevSecOps Engineer
Secure code pipelines! Blend DevOps & security. Tools: Entry: Jenkins, GitLab CI. Mid: Snyk, OWASP ZAP. Senior: Aqua Security, Prisma Cloud. 2025 automation rules! Your DevSecOps pick? Share! 🔧

C.Ellyson @techwithellyson.bsky.social · 2d

Blockchain Developer
Code the future! Build secure chains. Tools: Entry: Solidity, Remix. Mid: Truffle, Hardhat. Senior: Chainlink, Ethers.js. DeFi booming in 2025! Fave blockchain tool? 👇

C.Ellyson @techwithellyson.bsky.social · 2d

Network Engineer
Keep data flowing! Manage networks. Tools: Entry: Cisco Packet Tracer, GNS3. Mid: SolarWinds, Wireshark. Senior: SD-WAN, NetFlow. 5G drives 2025! Worst network fail?

C.Ellyson @techwithellyson.bsky.social · 3d

Cloud Engineer
Cloud conqueror! Deploy scalable apps. Tools: Entry: AWS CLI, Docker. Mid: Kubernetes, Ansible. Senior: Helm, Istio. 90% orgs cloud-bound in 2025! Top cloud tool? Share! ☁️

C.Ellyson @techwithellyson.bsky.social · 3d

AI/ML Engineer
Train AI to think! Build smart models. Tools: Entry: Python, TensorFlow. Mid: PyTorch, Jupyter. Senior: Kubeflow, ONNX. AI ethics hot in 2025! What's your AI stack? Tell us! 🧠

C.Ellyson @techwithellyson.bsky.social · 3d

Security Engineer
Build fortress tech! Secure systems w/ Zero Trust. Tools: Entry: AWS IAM, Firewall CLI. Mid: Terraform, Palo Alto. Senior: HashiCorp Vault, Zscaler. Cloud's king in 2025! Fave tool? Drop it! 🛡️

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C.Ellyson @techwithellyson.bsky.social · 4d

Incident Responder
Breach buster! Investigate & recover. Tools: Entry: Autopsy, FTK Imager. Mid: EnCase, Volatility. Senior: XDR platforms, SANS SIFT. Ransomware's spiking—ready? Share a forensics win! 🕵️

C.Ellyson @techwithellyson.bsky.social · 4d

Cybersecurity Analyst
Hackers beware! Monitor threats in SOCs. Tools: Entry: Splunk, Wireshark. Mid: CrowdStrike, Zeek. Senior: QRadar, ELK Stack. 2025 demand soaring! What's your go-to cyber tool? 👇

C.Ellyson @techwithellyson.bsky.social · 6d

Cybersecurity Quiz: What's the primary purpose of a firewall?
A) To encrypt data
B) To block unauthorized access
C) To store passwords
D) To scan for viruses

C.Ellyson @techwithellyson.bsky.social · 7d

Cybersecurity Quiz: What does VPN stand for?
A) Virtual Private Network
B) Verified Public Node
C) Visual Protocol Name
D) Variable Port Number

C.Ellyson @techwithellyson.bsky.social · 7d

Cybersecurity Quiz: Which tool detects network intrusions?
A) IDS
B) UPS
C) RAM
D) CPU

C.Ellyson @techwithellyson.bsky.social · 7d

Cybersecurity Quiz: What's the CIA triad in security?
A) Confidentiality, Integrity, Availability
B) Code, Install, Attack
C) Central Intelligence Agency
D) Create, Implement, Assess

C.Ellyson @techwithellyson.bsky.social · 8d

AI Quiz: What's reinforcement learning?
A) Learning from rewards/punishments
B) Supervised data labeling
C) Unsupervised clustering
D) Rule-based programming

C.Ellyson @techwithellyson.bsky.social · 8d

AI Quiz: What's unsupervised learning?
A) Finding patterns without labels
B) Guided by examples
C) Reward-based
D) Rule-enforced

C.Ellyson @techwithellyson.bsky.social · 9d

AI Quiz: Which is an ethical concern in AI?
A) Bias in algorithms
B) Faster processing
C) More storage
D) Better graphics

C.Ellyson @techwithellyson.bsky.social · 10d

Cybersecurity Quiz: What is social engineering?
A) Building networks
B) Manipulating people for info
C) Coding viruses
D) Encrypting files

C.Ellyson @techwithellyson.bsky.social · 10d

Cybersecurity Quiz: What's the CIA triad in security?
A) Confidentiality, Integrity, Availability
B) Code, Install, Attack
C) Central Intelligence Agency
D) Create, Implement, Assess

C.Ellyson @techwithellyson.bsky.social · 11d

AI Quiz: What does GPT stand for in AI models?
A) General Purpose Tool
B) Generative Pre-trained Transformer
C) Global Processing Thread
D) Graphical Prediction Technique