Blockchain, AI, and Cybersecurity in Banking

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1.
What does Public Key Infrastructure (PKI) use to ensure secure communication and authentication in online transactions?
2.
What is a Trojan horse in the context of cybersecurity?
3.
Which of the following is the main benefit of using blockchain technology in banking?
4.
What is a smart contract in the context of blockchain?
5.
Which consensus mechanism is commonly used in blockchain networks to validate transactions?
These questions are part of Banking Awareness - 2025-26 course in GKToday's Android Application. The Course comprises 2400+MCQs on Banking & General Financial Awareness with explanation for All Banking Exams of 2025-26 such as IBPS Bank PO, IBPS Bank Clerical, RRB PO and Clerical, SBI PO and SBI Clerical, IBPS Recruitments, RBI Grade B and RBI Banking Examinations.