Exam 2 Review

Replication
1. Strong versus eventual consistency
2. Implementation of strong and eventual consistency (be prepared for questions about project 2)
Transactions
1. ACID
2. serializability/serial equivalence
3. two-phase locking
4. strict two-phase locking
5. distributed transactions
  1. two-phase commit
Yelp talk
Spanner
1. Architecture - zones, spanservers
2. Role of Paxos
3. Directories and data model
4. TrueTime - time synchronization algorithm, algorithm parameters and their effects
5. Timestamp assignment
  1. snapshot read
  2. read-only transactions
  3. RW transactions
6. Experimental results
VPN Gate (TBD)

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