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Which of the following technical modifications to the a…

The Chief Security Officer (CISO) at a multinational banking corporation is reviewing a plan to upgrade the
entire corporate IT infrastructure. The architecture consists of a centralized cloud environment hosting the
majority of data, small server clusters at each corporate location to handle the majority of customer transaction
processing, ATMs, and a new mobile banking application accessible from smartphones, tablets, and the
Internet via HTTP. The corporation does business having varying data retention and privacy laws.
Which of the following technical modifications to the architecture and corresponding security controls should be
implemented to provide the MOST complete protection of data?

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A.
Revoke exiting root certificates, re-issue new customer certificates, and ensure all transactions are digitally
signed to minimize fraud, implement encryption for data in-transit between data centers

B.
Ensure all data is encryption according to the most stringent regulatory guidance applicable, implement
encryption for data in-transit between data centers, increase data availability by replicating all data,
transaction data, logs between each corporate location

C.
Store customer data based on national borders, ensure end-to end encryption between ATMs, end users,
and servers, test redundancy and COOP plans to ensure data is not inadvertently shifted from one legal
jurisdiction to another with more stringent regulations

D.
Install redundant servers to handle corporate customer processing, encrypt all customer data to ease the
transfer from one country to another, implement end-to-end encryption between mobile applications and the
cloud.

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