swap can be created in two ways after the installation,
1. fdisk command
2. create a swap file using dd command
after creating swap file or file system
#mkswap /dev/sda10
#swapon /dev/sda10
#swapon -s #To see the swap devices
by using dd command
#dd if=/dev/zero of=/swap bs=1024 count=1
Which will creates the file size 1024(1GB).
#mkswap /swap
#swapon /swap
#swapon -s #to see the swap devices
The file /proc/[PID]/mountinfo contains a) major minor numbers of device files b) root of the mount within the filesystem c) mount point relative to the process's root d) all of the mentioned
With the help of proc filesystem a) kernel and kernel modules can send the information to processes b) process information can be accessed c) both (a) and (b) d) none of the mentioned
Most files and directories within /proc are 0 bytes in size because a) proc filesystem exists only as a reflection of the in-memory kernel data structure b) these files contains very only one or two instructions c) both(a) and (b) d) none of the mentioned
Accessing the file /proc/meminfo gives the different result each time because a) memory usages is always fluctuating b) a new process id is assigned c) logical address is different from the physical address d) none of the mentioned
Proc files are a) read-only files b) read-write files c) both (a) and (b) d) none of the mentioned
The files of /proc directory are a) stored in secondary memory b) generated by the kernel c) both (a) and (b) d) none of the mentioned
The directory /proc/net contains information about a) different network system compiled into the system b) IP address of the system c) MAC address of the system d) none of the mentioned
The command "echo www.globalguideline.com > /proc/sys/kernel/hostname" will a) change the hostname b) print "www.globalguideline.com" c) do nothing d) none of the mentioned
Which file is used primarily for diagnosing memory fragmentation issues? a) /proc/buddyinfo b) /proc/meminfo c) /proc/apm d) none of the mentioned
Which file shows the parameter passed to kernel at the time of starting? a) /proc/apm b) /proc/cmdline c) both (a) and (b) d) none of the mentioned
rendc.org
Whether it is technological solutions or user-oriented innovations, We have put together for you the best sources of HR Interview Questions and Answers, Tech Ideas, and Programming Tutorials."
Get all the latest information on rendc.org
© 2022 | All rights reserved.
RENDC
welcome to www.rendc.org
