课程名称︰比特币及数据分析
课程性质︰选修
课程教师：廖世伟
开课学院：电资学院
开课系所︰资工所
考试日期（年月日）︰2015.11.13
考试时限（分钟）：
试题 :
1. [8%] What advantages does a "decentrialized" system have?
2. [8%] Explain the difference between permissioned distributed ledger and
permissionless distributed ledger.
3. [8%] Describe the relation between private key, public key, public key hash,
and address.
4. [8%] Without using a block explorer, how to find out the sender's address
through a given transaction hash? (Hint: The rpc "getrawtransaction"
can get the transaction's raw data.)
5. [3%] (a). What is UTXO?
[5%] (b). How does wallet-software get the balance of an address?
6. [10%] Describe how Bitcoin verify transaction's inputs. (Hint: Locking
Script and Unlocking Script)
7. [3%] (a). Given a Transaction, how can we get its fee?
[5%] (b). Describe why fee is necessary to bitcoin.
8. [8%] (a). List the five types of "Standard Transactions".
[6%] (b). What is the purpose for OP_RETURN type transaction?