
Quiz Blockchain Security
Authored by Yudhistira Nugraha
Information Technology (IT)
University
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Seorang pengguna menginisiasi transaksi Bitcoin. Setelah diverifikasi oleh banyak node, transaksi ini dianggap sah dan tidak dapat diubah. Apa prinsip dasar blockchain yang ditunjukkan dalam kasus ini?
Desentralisasi
Privasi
Transparansi
Immutability
Kepemilikan
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Sebuah organisasi ingin membangun sistem logistik yang memungkinkan pelacakan barang secara transparan dan real-time oleh semua pihak. Teknologi blockchain apa yang paling sesuai untuk diterapkan?
Blockchain privat dengan PoW
Blockchain publik dengan smart contract
Sistem database konvensional
Blockchain tertutup tanpa konsensus
Cryptocurrency exchange
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Seorang penyerang membuat banyak identitas palsu di dalam jaringan blockchain untuk mempengaruhi voting konsensus. Jenis serangan ini dikenal sebagai:
Phishing
Routing Attack
51% Attack
Sybil Attack
Replay Attack
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Apa alasan utama Ethereum beralih dari Proof of Work ke Proof of Stake?
Menghindari regulasi pemerintah
Mengurangi biaya transaksi
Meningkatkan konsumsi energi
Menurunkan transparansi
Meningkatkan kecepatan dan efisiensi jaringan
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Apa penyebab utama insiden Wormhole yang menyebabkan kerugian lebih dari $300 juta?
Serangan DDoS pada blockchain
Kegagalan sistem validasi akun dan kontrak pintar
Kehilangan private key
Kesalahan dalam halving mekanisme
Ketidakstabilan gas fee
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Dalam blockchain, siapa yang bertanggung jawab untuk memverifikasi transaksi dalam sistem Proof of Stake?
Miner
Validator
Pengguna akhir
Auditor
Developer
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Apa implikasi dari serangan 51% dalam blockchain publik?
Transaksi menjadi lebih cepat
Data menjadi privat
Double spending bisa terjadi
Node menjadi lebih stabil
Hash rate meningkat
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