Which command can be used to lock a user's account?
A. useradd
B. passwd
C. usermod
D. userlock
Answer: B
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__________ is the most common method used to conceal small blocks of data, such as encryption keys and hash function values, which are used in digital signatures.
A) Symmetric encryption B) Data integrity algorithms C) Asymmetric encryption D) Authentication protocols
The ________ attribute specifies whether a background image will move when someone uses the scroll bars to scroll a Web page
A) move B) scroll C) position D) attachment
The ________ is a tool used to recreate an exact color
A) color palette B) eyedropper C) marquee D) selection net
Word indicates possible grammatical mistakes or word usage errors by using underlining them with a ________ wavy line
A) green B) blue C) red D) yellow