The advantage of recording hash values is that you can determine whether data has changed.?

A technician has traveled to a company's alternate site to assess current operations of the network infrastructure. Following the assessment, the technician has informed management that everything is operational, with all applications and data mirrored. Which of the following types of site does the company have?

A. Warm site B. Cold site C. Hot site D. Standby site

Which type of symmetric algorithm operates on plaintext one bit at a time?

A. open ciphers B. plain ciphers C. stream ciphers D. block ciphers