What command should a CentOS 7 system administrator use to display the amount of free and used memory in the system, and to manage swap space?
A. free
B. disk
C. dir
D. fsck
Answer: A
Computer Science & Information Technology
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________ from all users are typically organized on the main site of the social bookmarking service
Fill in the blank(s) with correct word
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Which of the following is an example of a biometric authentication?
A. Token B. PIN C. Smart card D. Signature dynamics
Computer Science & Information Technology