In the following output of the command uptime, the load averages represent the system load averages for what time frames? 12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31 A. 1,5 and 15 minutes B. 1,15 and…
Due to extreme system use, a Linux system requires some additional swap space. To initialize 5 GB of additional swap space, which combination of commands should be used? A. dd if=/dev/zero of=/tmp/swapfile bs = 1024 count=5120000; mkswap /tmp/swapfile; mount /tmp/…
In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron? A. sal B. sarmon C. sarec D. sadf E. sarcron
The following is an excerpt from the output of tcpdump -nli eth1: 13:03:17.277327 IP 192.168.123.5.1065 > 192.168.5.112.21: Flags [.], ack 1 (truncated) 13:03:17.598624 IP 192.168.5.112.21 > 192.168.123.5.1065: Flags [P.], seq (truncated) Which network service or protocol was used? A. FTP…
The following command has just been run successfully: Cd /opt; tar xvf /dev/nst0; What will happen if the command sequence is run again? A. An error saying that there is no tape present is generated because the tape has been…
Which of the following commands shows capabilities and usable frequencies for the wireless interface wlan0? A. iw phy pyh0 info B. iw dev wlan0 info C. iw dev wlan0 show D. iw phy wlan0 show E. iw phy0 show
Which of the following commands adds a static IPv6 address to the network interface eth0? A. ip add addr 2001:db8::1337/64 dev eth0 B. ip -6 add addr 2001:db8::1337/64 dev eth0 C. ip addr add 2001:db8::1337/64 dev eth0 D. ip -6…
Fill in the blank. What keyword is missing in the following line from /etc/f stab in order to grant the user f red write access to the files in the vfat file system on /dev/sdb1: /dev/sdb1 /mnt/usbflash vfat defaults, ___________=fred,…
Fill in the blank. Which directory contains system-specific systemd unit files? (Specify the full path to the directory.) Your Response: type here A. /lib/systemd/system
Which of the following is a userspace application used to modify EFI entries on a Linux system? A. efieditor B. conf igefi C. efimanager D. efiboottmgr E. efibootedit