Which command will report information on memory usage, paging and block input/output?
In the following output, what percentage of time was the CPU waiting for pending I/O?
# vmstat 1 100
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 0 282120 134108 5797012 0 0 0 2 0 0 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1007 359 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1117 577 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1007 366 0 0 100 0
Which of the following is a side effect of extensive usage of swap space?
In the following output from top, which processes contribute to the percentage of time that the CPU spends in the state of wa?
Tasks: 193 total, 1 running, 190 sleeping, 2 stopped, 0 zombie
Cpu(s): 0.5%us, 0.3%sy, 0.0%ni, 98.2%id, 1.0%wa, 0.0%hi, 0.0%si, 0.0%st
In the following output, what is the 5 minute load average for the system?
# uptime
12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31
Which of the following commands will provide the PIDs of the processes sorted by which are using the most CPU cycles on the Linux system?
Which of the following commands can be used to list IPv4 addresses and MAC addresses for IP devices that the system has seen on the local network?
Which of the following commands will list the IPv4 neighbors of the current system? This includes IP and MAC addresses. (Choose TWO correct answers.)
Which of the following files are used to resolve hostnames to IP addresses? (Choose TWO correct answers.)
The users of the local network complain that name resolution is not fast enough. Enter the command, without the path or any options, that shows the time taken to resolve a DNS query.
TESTED 16 Oct 2025