Does a slow shutter speed let in more or less light than a fast shutter
speed?
What will be an ideal response?
More.
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Consider a relation R(A,B,C,D,E) with the following dependencies:
``` AB -> C CD -> E DE -> B ``` Is AB a candidate key of this relation? If not, is ABD? Explain your answer.
At what stage can a certificate no longer be used for any type of authentication?
A. creation B. suspension C. revocation D. expiration
The ____ demonstrates that when using a FIFO policy, in rare cases, adding more memory to a system can cause an increase in page interrupts.
A. Paging Anomaly B. Belady Anomaly C. Interrupt Anomaly D. Laszlo Anomaly
Fred's company wants to ensure the integrity of email messages sent via their central email servers. If the confidentiality of the messages is not critical, what solution should Fred suggest?
A. Digitally sign and encrypt all messages to ensure integrity. B. Digitally sign but don't encrypt all messages. C. Use TLS to protect messages, ensuring their integrity. D. Use a hashing algorithm to provide a hash in each message to prove that it hasn't changed.