Home | Windows | Network | Interview Questions | Database | Virtualization | Knowledge Base | Contact Us

Quick Links

Windows 2003 KB

Windows 2008 KB

Windows 2012 KB

CITRIX Q&A

SAN Q&A

Exchange Q&A

Virtualization

 

Network Interview Questions

SQL Interview Questions

Windows Admin Interview Q&A

Windows Forum

Other Links

DNS FAQ's

DHCP FAQ's

Active Directory FAQ's

AD History

Configuring New Domain

 

Deleted Object Recovery in AD

Global Catalog Server

NetDom Command

Replmon Command

NTDS Utility Guide

FSMO Guide

FSMO Failure

 

Network KB

Knowledge Base Home

Active Directory Trust

Group Policy Guide

IIS 6.0

RAID Levels

 

RPC Guide

Domain & Forest Functional Levels

SQL Failover Cluster

Hyper-V

Print Server

 

BitLocker

PowerShell

Planning Trust

Creating Trust

Solaris 10 Interview Questions

> What is the protocol supported by NFS ?
UDP and TCP

> What is the difference between dsk and rdsk ?
DSK: Block level devices
RDSK: Raw level device or character level device

> How to find the boot path in solaris ?
# prtconf –vp | grep bootpath
or
# eeprom

> How to bring the process to offline or online ?
# psradm –f (no of the process)
# psradm –a –n ( no of the process)

> How to check the no of the processor available ?
# psrinfo –v

> How will you check the process for particular user ?
# ps –U oracle
or
#ps –fu oracle | grep smon

> How do you check the no of user logged into the system ?
# who

> How do you check the run level ?
# who –r

> How to enable the telnet or ftp session for one host ?
Edit the /etc/hosts.allow (it will have list of host to access) -> This will show the user list on that host.
/etc/hosts.deny (it will have list of host to access deny)-> This will show the user list on that host.- /etc/services file

> If telnet not working, what are the thing to be checked ?
Ping test, service enable or not in (/etc/inetd.conf), NIS problem

If telnet is not working, first of all you will not be get connected, login through console access and then find out with ps -ef | grep telnetd or Kill -1 <pid_inetd>

> In which file port No's are defined ?
# /etc/service

> Tell me the port for Telnet, ftp,nis,ssh,nfs ?
ftp = 21ssh = 22Telnet = 23nfs = 2049nis = 749

> How will you restart the inetd process?
# Pkill –HUP inetd

> What is nice and renice command do ?
To set the high priority for the process
-20 high priorities
+20 low priorities
Eg: # nice –20 oracle

> What are thing you must ensure to provide security the system ?
1. Latest patches
2. Access to the system:
/etc/default/login
sshd.config
3. Limited su access
4. Stop unnecessary service at run level
/etc/inetd.config : finger, discard, daytime,charger,tftp,spary & etc

> How will you check the disk performance?
# iostat –xctd 4 5

> What are performance tool used ?
Iostat ,vmstat , prstat , sar ,netstat, top
Which service assign port no dynamically
Rpc service ( /etc/rpc)

As a user how he can change is passwd with root privilege.
Setuid to set on /usr/bin/passwd command

> What is default permission of /etc/passwd , /etc/shadow files ?
/etc/passwd: 644
/etc/shadow: 400

> What is default permission of files and directory?
file: 644
directory: 755

> What is UMASK ?
UMASK is a Unix environment variable, which automatically sets file permissions on newly created files.

> Defalut value for umask ?
umask default value is 022

> Explain setuid, setgid and stickybit ?
Setuid : When setuid permission set on a executable file, user who access the file is granted access permission of the owner of the file.
# find / -prem –4000

setgid : Permission similar to setuid, The process is changed to owner of the file.
# find / -prem –2000

Stickybit : It is a special permission that protect the files within a public writable directory
Stickybit permission set the shared directory, user can create a files or directory
But only by owner of the directory can modify or delete.
# find / -prem –1000

> How to set passwd never expire for a user ?
#passwd –x –1 (username)

> How to find the kernel bit version or architecture ?
# isainfo –kv

> How to set the time zion ?
# /etc/default/init
TZ=

> How to enable and disable the dtlogin ?
# /usr/dt/bin/dtconfig –e ( enable)
# /usr/dt/bin/dtconfig –d ( disable)

> How to change the hostname and Ethernet address in single command ?
# /usr/sbin/sys-unconfig

> How do you add the disk without reboot the server?
# devfsadm –c disk

> How to delete "abc" files using find command ?
# find / -name "abc" –exec rm {}\;

> What are the NFS daemon in server & client ?
Server Daemons Client Daemons
1 mountd statd
2.nfsd lockd
3.nfslogd
4.statd
5.lockd

> How to start / stop the nfs server ?
# /etc/init.d/nfs.server start
# /etc/init.d/nfs.server stop

> How to find out the shared file system from server and client ?
Server : # share & dfmount
Client : # showmount –e (hostname) and dfshares

> To find the OBP environment variable ?
OK printenv

> Expalin soft link and hard link ?
Softlink : link between different file systems and inode number will be different
(eg) /U3 - /U4
#ln –s /U3/file1 /U4/file2

Hardlink : link between same file systems and inode number will be same
(eg) /U3 - /U3
#ln –s /U3/file1 /U3/file2

> Explain FSCK ?
Utility for checking and repairing the files system inconsistence due to abnormal shutdown.
It has 5 phases
Phase 1 : Check block and size
Phase 2 : Check pathname
Phase 3 : Check connectivity
Phase 4 : Check reference count
Phase 5 : Check cylinder group
If super block corrupted how to recover
# newfs –N /dev/rdsk/c0t0d0s6
Then run the fsck utility using alternative super block
# fsck –F ufs –o b=32 /dev/rdsk/c0t0d0s6

> How to create swap file ?
#mkfile 20m /filename
#swap –a /filename
#swap –l ( to view and swap file)
#swap –d ( to delete the swap file)

          Continue Questions                   Previous Questions

HTML Comment Box is loading comments...

Home | Windows | Network | Interview Q&A | Database| Knowledge Base | Contact Us

 

Designed by TechieBird