Credential Overview Flashcards
7 cards from real CBSE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Credential Overview flashcards as text
What distinguishes a permissioned blockchain security assessment from a permissionless one, according to CBSE principles?
Answer: Permissioned blockchains introduce insider threat risks and governance-level attack surfaces not present in fully open networks
Permissioned networks face insider threats and governance vulnerabilities because participants are known and trusted, creating different risk profiles than open networks.
Which attack is specifically associated with proof-of-work blockchains and is a key topic in the CBSE exam?
Answer: 51% attack where a majority hash rate controls block production
A 51% attack occurs when an entity controls the majority of a PoW network's hash rate, enabling double-spending and block reorganization.
In CBSE studies, which layer of the blockchain stack is most vulnerable to reentrancy attacks?
Answer: The smart contract application layer
Reentrancy attacks exploit flaws in smart contract code, making the smart contract application layer the primary target.
A CBSE candidate reviews a scenario where a blockchain oracle is manipulated to report false data. Which security principle does this primarily violate?
Answer: Integrity — the smart contract receives and acts on falsified external information
Oracle manipulation compromises integrity because the smart contract cannot distinguish false data from legitimate data, leading to corrupted execution.
Which best describes a Sybil attack in the context of blockchain networks, as covered in the CBSE curriculum?
Answer: An attacker creates multiple fake identities to gain disproportionate influence over the network
In a Sybil attack, the adversary creates many pseudonymous nodes to subvert reputation systems or gain majority voting power in consensus.
Why is key management considered a critical security domain in the CBSE certification?
Answer: Private key compromise directly enables unauthorized fund transfers and identity theft in blockchain systems
In blockchain, possession of a private key equals control of the associated assets — there is no recovery mechanism if keys are lost or stolen.
Which statement about the CBSE exam format is most accurate?
Answer: It includes multiple-choice questions covering domains such as blockchain fundamentals, attack vectors, and security best practices
The CBSE exam uses a multiple-choice format that tests knowledge across core blockchain security domains including fundamentals, threats, and mitigations.