What Is Interrupt?
What Does The Last Two Sections Define In Fstab File?
The 5th column tells the dump information if whether the partition has to be backed up. It it is "0" the filesystem will be ignored
The 6th column tells the order in which fsck command would check the filesystem on boot. If it is "0" then fsck won't check the filesystem
Explain The Procedure To Fix A Case When A System Is Unable To Boot Due To Improper Entry In Fstab?
Boot into single user mode and make the necessary corrections inside fstab
What Is The Default Mode When You Enter Single User Mode?
Read only for the first time but once you change it to read write then from next time onward it will be read write.
How Do You Make Permanent Changes To Any File Inside /proc Directory?
sysctl -p
What Is The Use Of Mtab Directory?
It contains a list of all the mounted directories or partitions on the system.
What Is The Command To View All The Mounted Partitions On The System?
mount
How To Change The Ext2/ext3 File System Attributes?
chattr command changes the file attributes.
How To List The Ext2/ext3 Filesystem Attributes?
lsattr command displays file attributes
How To Disconnect A Filesystem From A Linux Box?
The umount command is used.
Which Filesystem Is Referred By Mount When Displaying Mounted & Available Filesystems?
When mount command is invoked without any arguments it referes to the /etc/mtab filesystem.
How To Find Currently Mounted And Available Filesystems?
Use mount command without arguments.
How To Connect A File System To A Linux Box?
Mount command is used.
What Is The Command To View All The Available Partitions On The System?
fdisk -l
What Is The Procedure You Follow To Extend A Lvm Partition?
lvextend -L +1G /dev/VolGroup/LogVol1
This will extend the partition size by +1 GB
resize2fs /dev/VolGroup/LogVol1
What Is The Command To View All The Variables In Your System?
set
What Is The Command To View All The Kernel Parameters?
sysctl -a
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Interrupt is a signal send by external device to the processor so as to request the processor to perform a particular work.
Difference Between Static And Dynamic Ram?
Static RAM: No refreshing, 6 to 8 MOS transistors are required to form one memory cell, Information stored as voltage level in a flip flop.
Dynamic RAM: Refreshed periodically, 3 to 4 transistors are required to form one memory cell, Information is stored as a charge in the gate to substrate capacitance.
What Is The Difference Between Primary & Secondary Storage Device?
In primary storage device the storage capacity is limited. It has a volatile memory. In secondary storage device the storage capacity is larger. It is a nonvolatile memory. Primary devices are: RAM / ROM. Secondary devices are: Floppy disc I Hard disk.
Why Does Microprocessor Contain Rom Chips?
Microprocessor contain ROM chip because it contain instructions to execute data.
What Is Meant By Latch?
Latch is a D- type flip-flop used as a temporary storage device controlled by a timing signal, which can store 0 or 1. The primary function of a Latch is data storage. It is used in output devices such as LED, to hold the data for display.
What Is The Difference Between Microprocessor And Microcontroller?
In Microprocessor more op-codes, few bit handling instructions. But in Microcontroller: fewer op-codes, more bit handling Instructions, and also it is defined as a device that includes micro processor, memory, & input / output signal lines on a single chip.
What Is The Disadvantage Of Microprocessor?
It has limitations on the size of data. Most Microprocessor does not support floating-point operations.
Is The Data Bus Is Bi-directional?
The data bus is Bi-directional because the same bus is used for transfer of data between Micro Processor and memory or input / output devices in both the direction.
Is The Address Bus Unidirectional?
The address bus is unidirectional because the address information is always given by the Micro Processor to address a memory location of an input I output devices.
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| Pegasystems Linux Interview Questions Answers |
The 5th column tells the dump information if whether the partition has to be backed up. It it is "0" the filesystem will be ignored
The 6th column tells the order in which fsck command would check the filesystem on boot. If it is "0" then fsck won't check the filesystem
Explain The Procedure To Fix A Case When A System Is Unable To Boot Due To Improper Entry In Fstab?
Boot into single user mode and make the necessary corrections inside fstab
What Is The Default Mode When You Enter Single User Mode?
Read only for the first time but once you change it to read write then from next time onward it will be read write.
How Do You Make Permanent Changes To Any File Inside /proc Directory?
sysctl -p
What Is The Use Of Mtab Directory?
It contains a list of all the mounted directories or partitions on the system.
What Is The Command To View All The Mounted Partitions On The System?
mount
How To Change The Ext2/ext3 File System Attributes?
chattr command changes the file attributes.
How To List The Ext2/ext3 Filesystem Attributes?
lsattr command displays file attributes
How To Disconnect A Filesystem From A Linux Box?
The umount command is used.
Which Filesystem Is Referred By Mount When Displaying Mounted & Available Filesystems?
When mount command is invoked without any arguments it referes to the /etc/mtab filesystem.
How To Find Currently Mounted And Available Filesystems?
Use mount command without arguments.
How To Connect A File System To A Linux Box?
Mount command is used.
fdisk -l
What Is The Procedure You Follow To Extend A Lvm Partition?
lvextend -L +1G /dev/VolGroup/LogVol1
This will extend the partition size by +1 GB
resize2fs /dev/VolGroup/LogVol1
What Is The Command To View All The Variables In Your System?
set
What Is The Command To View All The Kernel Parameters?
sysctl -a