Why would you want to set file permissions?
What will be an ideal response?
Early in computing, people didn't worry much about security. Stolen files and intrusions were less of a concern, in part because networks were rare and there was no Internet. As you have probably learned through the media, friends, and school, times are different and you need to protect your files. Security is important on UNIX/Linux systems because they can house multiple users and are connected to networks and the Internet, all potential sources of intrusion.
Users can set permissions for files (including directories) they own so as to establish security. System administrators also set permissions to protect system and shared files. Permissions manage who can read, write, or execute files.
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The ____________________ is the area between the spools.
Fill in the blank(s) with the appropriate word(s).
A conventional oxygen sensor has a reading of 900 mV on a multimeter. This indicates ________
A) A vacuum leak B) A lean exhaust C) A rich exhaust D) None of these
A standard-size page in the United States and Canada is the A4 size.
Answer the following statement true (T) or false (F)
How does a solid state voltage regulator manage alternator output voltage?
A. By rapidly switching the rotor field winding off and on. B. By acting as a digital power supply. C. By rapidly switching the output voltage off and on. D. By filtering the output.