Which smart contract vulnerability allows an attacker to make a profit off a smart contract cryptocurrency exchange like Bancor?
A. Arithmetic
B. Access Control
C. Race Conditions
D. Reentrancy
Which type of attack misuses Internet protocols to attack the blockchain? Select all that apply.
A. Denial of Service
B. Eclipse
C. Sybil
D. Routing
The immutability of the blockchain is an asset for which of the following? Select all that apply.
A. Asset Management
B. Data Security Secure
C. Communications
D. Transparency
Which type of blockchain is most vulnerable to traditional Denial of Service attacks?
A. Proof of Stake
B. Proof of Work
C. Proof of Activity
D. Proof of Space
E. All of the above
Which of the following smart contract vulnerabilities can cause a smart contract's balances ledger to become incorrect? Select all that apply
A. Arithmetic
B. Unchecked Return Values
C. Race Condition
D. Reentrancy
Digital signatures provide confidentially, integrity , and non-repudiation.
A. True
B. False
The use of Membership Service Providers (MSPs) partially centralizes a Blockchain and increases its vulnerability to traditional Denial of Service attacks.
A. True
B. False
The goal of most network-based blockchain attacks is to enable what type of attack?
A. Selfish Mining Attack
B. Double-Spend Attack
C. 51% Attack
D. Long-Range Attack
Transaction validation on DAG-based DLTs is designed in a way that allows legitimate transactions to be considered untrusted due to random chance.
A. True
B. False
Which types of network attacks focus on partitioning the blockchain network? Select all that apply
A. Eclipse
B. Sybil
C. Denial of Service
D. Routing