Arweave 201 - lesson 2

apps/academy/src/data/questions/arweave-201/1/quiz-1/Q1.json

@@ -1,20 +1,16 @@
 {
-  "question": "What is Arweave?",
+  "question": "What types of Arweave nodes exist?",
   "options": [
     {
-      "answer": "A layer 1 network",
+      "answer": "Miner nodes.",
       "correct": true
     },
     {
-      "answer": "A layer 2 network"
-    },
-    {
-      "answer": "Like Bitcoin for storage",
+      "answer": "Gateway nodes.",
       "correct": true
     },
     {
-      "answer": "Immutable object storage",
-      "correct": true
+      "answer": "Swap nodes."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-1/Q2.json

@@ -1,19 +1,15 @@
 {
-  "question": "What features does Arweave have?",
+  "question": "How are AR.IO gateway operators incentivized?",
   "options": [
     {
-      "answer": "Censorship resistance",
+      "answer": "With IO tokens generated from ArNS sales.",
       "correct": true
     },
     {
-      "answer": "Global replication",
-      "correct": true
-    },
-    {
-      "answer": "Temporary storage"
+      "answer": "With Arweave's native AR token."
     },
     {
-      "answer": "Automatic encryption"
+      "answer": "They do it for the greater good."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-1/Q3.json

@@ -1,20 +1,15 @@
 {
-  "question": "What data can you store on Arweave?",
+  "question": "How are AR.IO gateways implemented?",
   "options": [
     {
-      "answer": "Music and videos",
+      "answer": "They are Node.js containers running on Docker Compose.",
       "correct": true
     },
     {
-      "answer": "Images and text",
-      "correct": true
-    },
-    {
-      "answer": "Single page applications",
-      "correct": true
+      "answer": "They use Java Server Pages and Nginx."
     },
     {
-      "answer": "Server-side rendered websites"
+      "answer": "They are written in Rust."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-2/Q1.json

@@ -1,16 +1,16 @@
 {
-  "question": "Where does Arweave store files?",
+  "question": "Which files do you need to start an AR.IO gateway?",
   "options": [
     {
-      "answer": "Everything is stored in the transaction object"
+      "answer": "The docker-compose.yaml.",
+      "correct": true
     },
     {
-      "answer": "The transaction object can contain files smaller than 12MiB",
+      "answer": "An .env file.",
       "correct": true
     },
     {
-      "answer": "Files bigger than 12MiB have a separate storage location",
-      "correct": true
+      "answer": "A MAKE file."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-2/Q2.json

@@ -1,16 +1,15 @@
 {
-  "question": "How does Arweave’s consensus algorithm ensure permanent storage?",
+  "question": "Why should you not start the writer processes?",
   "options": [
     {
-      "answer": "By requiring miner nodes to prove access to random chunks of uploaded data",
+      "answer": "Because they will start indexing the whole chain, which can take weeks.",
       "correct": true
     },
     {
-      "answer": "By incentivizing miner nodes to share data",
-      "correct": true
+      "answer": "Because you have to pay for each byte downloaded from Arweave."
     },
     {
-      "answer": "By encrypting transaction bodies before upload"
+      "answer": "Because they will mine Bitcoin on your machine."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-2/Q3.json

@@ -1,19 +1,16 @@
 {
-  "question": "What responsibilities do miner nodes have?",
+  "question": "Why do you need to set a trusted node?",
   "options": [
     {
-      "answer": "Data storage",
+      "answer": "The trusted node is your entry to the Arweave network.",
       "correct": true
     },
     {
-      "answer": "Data replication",
+      "answer": "The trusted node will resolve all data your gateway hasn't indexed/cached yet.",
       "correct": true
     },
     {
-      "answer": "Data access"
-    },
-    {
-      "answer": "Data encoding"
+      "answer": "The trusted node will help you encrypting uploaded data."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-3/Q1.json

@@ -1,16 +1,12 @@
 {
-  "question": "What are parts of the SPoRA consensus algorithm?",
+  "question": "Why do you need to stop the gateway explicitly?",
   "options": [
     {
-      "answer": "Computing a hash",
+      "answer": "Because Docker Compose will run the gateway in the background.",
       "correct": true
     },
     {
-      "answer": "Proving access to random chunks of uploaded data",
-      "correct": true
-    },
-    {
-      "answer": "Locking sectors of a block storage"
+      "answer": "You don't have to stop it, it will stop automatically after 5 minutes."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-3/Q2.json

@@ -1,16 +1,16 @@
 {
-  "question": "How can you remove data from Arweave?",
+  "question": "Why should you enable HTTPS for your server?",
   "options": [
     {
-      "answer": "By sending a do-not-store request",
+      "answer": "Because some browser APIs don't work without HTTPS.",
       "correct": true
     },
     {
-      "answer": "You can’t enforce removal",
+      "answer": "To prevent third-parties from reading your users data.",
       "correct": true
     },
     {
-      "answer": "By forking the chain"
+      "answer": "To save traffic."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-3/Q3.json

@@ -1,19 +1,15 @@
 {
-  "question": "How does Arweave ensure continuous payment for its storage?",
+  "question": "How do you disable sandboxing?",
   "options": [
     {
-      "answer": "It has a storage endowment to save tokens for later",
+      "answer": "By not setting a ARNS_ROOT_HOST in your .env file.",
       "correct": true
     },
     {
-      "answer": "Its token economics are based on future storage cost estimates",
-      "correct": true
-    },
-    {
-      "answer": "It gives each miner node one Bitcoin"
+      "answer": "By setting SANDBOXING to false in your .env file."
     },
     {
-      "answer": "It requires continuous payments."
+      "answer": "By using a ?sandbox=false query parameter when opening a TX."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-4/Q1.json

@@ -1,16 +1,15 @@
 {
-  "question": "What are the Arweave transaction types?",
+  "question": "What do you have to remember when enbaling the writers?",
   "options": [
     {
-      "answer": "L1 transactions",
+      "answer": "To set a START_HEIGHT value so the writers don't index the whole chain.",
       "correct": true
     },
     {
-      "answer": "Bundled transactions",
-      "correct": true
+      "answer": "To set a TIMEOUT value, so they don't wait for pending transacitons."
     },
     {
-      "answer": "Volatile transactions"
+      "answer": "Nothing, you can simply set START_WRITERS to true and acccess new transactions right away."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-4/Q2.json

@@ -1,20 +1,15 @@
 {
-  "question": "What are the properties of L1 transactions?",
+  "question": "Under which route are the admin features located?",
   "options": [
     {
-      "answer": "They are relatively slow",
+      "answer": "/ar-io/admin/...",
       "correct": true
     },
     {
-      "answer": "They can transfer AR tokens",
-      "correct": true
-    },
-    {
-      "answer": "They can be paid with fiat currency"
+      "answer": "/admin"
     },
     {
-      "answer": "They can have custom tags",
-      "correct": true
+      "answer": "/gatetway/admin"
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-4/Q3.json

@@ -1,20 +1,12 @@
 {
-  "question": "What are the properties of bundled transactions?",
+  "question": "Should you run an observer for your dev gateway?",
   "options": [
     {
-      "answer": "They are relatively fast",
+      "answer": "No, they're only for production gateways.",
       "correct": true
     },
     {
-      "answer": "They can be paid with fiat currency",
-      "correct": true
-    },
-    {
-      "answer": "They can transfer AR tokens"
-    },
-    {
-      "answer": "They can have custom tags",
-      "correct": true
+      "answer": "Yes, they can improve performance."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-5/Q1.json

@@ -1,19 +1,16 @@
 {
-  "question": "What are Arweave's pros compared to cloud storage?",
+  "question": "Can multiple gateways reuse data?",
   "options": [
     {
-      "answer": "One-time payment",
+      "answer": "Yes, but only CHUNKS_DATA_PATH, CONTIGUOUS_DATA_PATH, and HEADERS_DATA_PATH.",
       "correct": true
     },
     {
-      "answer": "Strong provenance guarantees",
+      "answer": "Yes, but only one gateway should have START_WRITERS.",
       "correct": true
     },
     {
-      "answer": "Temporary storage"
-    },
-    {
-      "answer": "Cheap storage"
+      "answer": "No, all data is unique to a gateway."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/1/quiz-5/Q2.json

@@ -1,19 +1,15 @@
 {
-  "question": "What are Arweave’s pros compared to popular blockchain networks?",
+  "question": "Can you use webhooks without unbundling transactions?",
   "options": [
     {
-      "answer": "Cheap permanent storage",
+      "answer": "Yes, but only for layer 1 transactions and blocks.",
       "correct": true
     },
     {
-      "answer": "The protocol handles storage and replication",
-      "correct": true
-    },
-    {
-      "answer": "Temporary storage"
+      "answer": "No, you need to activate it to use webhooks."
     },
     {
-      "answer": "Fast L1 transactions"
+      "answer": "Yes, they will trigger on all transactions."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/2/quiz-1/Q1.json

@@ -1,16 +1,16 @@
 {
-  "question": "What types of Arweave nodes exist?",
+  "question": "Why does your gateway need a domain?",
   "options": [
     {
-      "answer": "Miner nodes.",
+      "answer": "To enable sandboxing via dynamic subdomains.",
       "correct": true
     },
     {
-      "answer": "Gateway nodes.",
+      "answer": "To enable human-friendly ArNS names.",
       "correct": true
     },
     {
-      "answer": "Swap nodes."
+      "answer": "To improve latency and reliability."
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/2/quiz-1/Q2.json

@@ -1,15 +1,17 @@
 {
-  "question": "How are AR.IO gateway operators incentivized?",
+  "question": "Why does this setup include a load balancer?",
   "options": [
     {
-      "answer": "With IO tokens generated from ArNS sales.",
+      "answer": "To distribute the load between two EC2 instances.",
       "correct": true
     },
     {
-      "answer": "With Arweave's native AR token."
+      "answer": "To protect the EC2 instances with a web application firewall.",
+      "correct": true
     },
     {
-      "answer": "They do it for the greater good."
+      "answer": "To improve reliability.",
+      "correct": true
     }
   ]
 }

apps/academy/src/data/questions/arweave-201/2/quiz-1/Q3.json

@@ -1,15 +1,15 @@
 {
-  "question": "How are AR.IO gateways implemented?",
+  "question": "What is the job of CodeDeploy in this setup?",
   "options": [
     {
-      "answer": "They are Node.js containers running on Docker Compose.",
+      "answer": "It will update the gateway when a new version is released.",
       "correct": true
     },
     {
-      "answer": "They use Java Server Pages and Nginx."
+      "answer": "It will deploy the gateway."
     },
     {
-      "answer": "They are written in Rust."
+      "answer": "It will check the health of the deployment."
     }
   ]
 }