122 lines
3.4 KiB
JSON
122 lines
3.4 KiB
JSON
[
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{
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"id": 1,
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"question": "What is a distributed system?",
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"options": {
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"A": "A single powerful computer running multiple programs",
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"B": "A collection of multiple computers that appears as one system",
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"C": "A system that only runs on cloud providers",
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"D": "A decentralized blockchain network"
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}
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},
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{
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"id": 2,
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"question": "What is horizontal scaling?",
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"options": {
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"A": "Adding more CPU and RAM to a single machine",
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"B": "Replacing hardware with faster SSDs",
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"C": "Adding more machines to improve performance",
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"D": "Upgrading the operating system"
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}
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},
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{
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"id": 3,
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"question": "Which is true about distributed systems compared to monolithic systems?",
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"options": {
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"A": "They are more resilient but more complex",
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"B": "They always have a single point of failure",
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"C": "They cannot scale horizontally",
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"D": "They require downtime for maintenance"
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}
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},
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{
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"id": 4,
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"question": "Which statement about distributed vs decentralized systems is correct?",
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"options": {
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"A": "Every distributed system is decentralized",
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"B": "A decentralized system must be distributed",
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"C": "A distributed system must have no central authority",
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"D": "They are identical concepts"
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}
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},
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{
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"id": 5,
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"question": "According to the Fallacies of Distributed Computing, which of these is a false assumption developers often make?",
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"options": {
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"A": "The network is reliable",
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"B": "Latency is zero",
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"C": "Bandwidth is infinite",
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"D": "All of the above"
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}
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},
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{
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"id": 6,
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"question": "In Proof of Work (PoW), miners:",
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"options": {
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"A": "Stake their coins",
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"B": "Solve cryptographic puzzles",
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"C": "Vote on transactions",
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"D": "Approve all transactions"
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}
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},
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{
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"id": 7,
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"question": "What is the smallest unit of Bitcoin?",
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"options": {
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"A": "Wei",
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"B": "Gwei",
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"C": "Ether",
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"D": "Satoshi"
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}
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},
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{
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"id": 8,
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"question": "What is Gas in Ethereum?",
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"options": {
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"A": "A blockchain explorer",
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"B": "A wallet feature",
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"C": "The fee required to execute transactions",
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"D": "A mining pool"
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}
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},
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{
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"id": 9,
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"question": "A crypto wallet actually stores:",
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"options": {
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"A": "The coins themselves",
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"B": "A copy of the blockchain",
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"C": "Private and public keys",
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"D": "Mining rewards"
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}
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},
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{
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"id": 10,
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"question": "With synchronous communication:",
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"options": {
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"A": "The sender does not wait",
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"B": "The sender waits for a response",
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"C": "All messages go through a broker",
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"D": "There is no temporal coupling"
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}
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},
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{
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"id": 11,
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"question": "In basic Pub/Sub, when a message is published to a topic:",
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"options": {
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"A": "The broker deletes it immediately",
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"B": "The producer processes it",
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"C": "Only one subscriber receives the message (Point-to-Point)",
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"D": "All subscribers interested in that topic receive a copy"
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}
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},
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{
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"id": 12,
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"question": "What is exponential backoff used for?",
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"options": {
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"A": "Waiting progressively longer between retries",
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"B": "Synchronizing clocks",
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"C": "Reducing memory usage",
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"D": "Increasing blockchain throughput"
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}
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}
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] |