Which file specifies the user accounts can NOT submit jobs via at or batch? (Provide the full path and filename).
The ________ command is used to add a group to the system. (Please enter only a single command and do not enter duplicate answers in this field.)
A user was not given permission to use the CRON scheduling system. What file needs to be modified to provide that access? (Please specify the full path to the file).
An ISP has given an administrator an IP block for use. The block is 192.168.112.64/26. If the administrator uses the first usable IP for the router that is installed on the network, how many usable IPs are left? (Please enter the number and not a word)
An administrator is configuring a secured webserver, however connecting to https://127.0.0.1 is not working. The administrator runs netstat -ntl, which returns the following output: tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN What port should be listening before a successful connection is possible? (Provide only the numerical value of the port).
Which protocol uses two (2) TCP/IP ports one of them being port 20 for data transfer? (Please do not enter duplicate answers in this field.)
An administrator can run the ________ command to see active network and UNIX domain socket connections. (Please specify the command with no options or parameters).
An administrator needs to sync the hardware clock, which is on GMT, with the system clock, which the administrator just updated with NTP. To do this, complete the following commanD. ________ -u --systohc
An administrator has added the following line to /etc/inittab in order to disable the ability to reboot a Debian system by pressing the Control + Alt + Delete keys simultaneously: ca:12345:_________:/bin/echo "Rebooting disabled" Please provide the missing string.
An administrator suspects that a gateway machine on the network has failed but they are unsure which machine. Which of the following commands will help locate the problem?
A. ps
B. netstat
C. nslookup
D. ifconfig
E. traceroute
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