Unix administrator interview questions Linux and Network Administrators too can benefit from this

These are interview questions asked in HP,IBM,Sun Microsystems to one of the blog reader. I thank him for sending & sharing these interview questions.

1.how do u find the CPU utilization ?
2.how do u find the number of CPU have in the machine ? what are the commands to add CPU ? What is core? What is quad core,dual core ?
3.if you are using Veritas volume manager,how do u find the maximum volume size you can create in the disk ?
4.if your veritas product licence expired and you want your system as usual or you want revert back?
how do you do ?
5.what is hard link and what is softlink?
6.what is difference between NAS and SAN?
7.how do you make NIS from the scratch ? difference between NIS +
8 some unix commands,in the case of solaris ,they willask "meta commands" for volume ?
7 useradd ,delete commands all parameters?
8.will ask about present project and the problem faced on the projects ?
9.best achievement ? how many people working under you ?
10. steps for adding disk,creating swap,increasing volume size ?
11.what are the steps follows for security purpose ?how do u find how many people using root password ?
12.what are the key things holding for disaster kit ?
13 what about back up job ?
14 what are the server using ?latest server ? versions of the OS ? difference between the previous version ?

in SAN few questions.they start with some general questions like

1 what is the future of SAN ?what is OSN ?
2 why do you want become SAN admin ? why people are still using NAS ?
3.give me some hardware name ,you are using ?
4.How do you give initial planning ,estimate to procure these storage hardware ?
5.What are the factors you consider while deploying storage solutions
6.What are your experience interacting with Customers & solving their storage issues?

More interview questions will be updated daily so email roger.smithson@gmail.com if you need more questions .

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You Know which topics to focus on
You Know what questions are coming for sure
How to prepare for them
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So I am giving you a powerful advantage , if you are aiming for a Job in System Administration or Network Administration or Storage or Unix or Linux
I will give you a short list of topics with very precise information links to help you win your Job interview and a well paying offer letter.

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To understand the quality of this Interview Collection you can see my free listing of interview questions on SCSI,RAID below
1. What is SCSI ? What is SASI
2. What are the advantages of SCSI compared to ATA or IDE ?
3. Explain SCSI ID usage & its usage in narrow SCSI ?
4. Give SCSI Evolution ( Mention different types of SCSI )
5. What is CDB ?
6. What are different SCSI command phases ?
7. Mention device types in SCSI-3 ?
8. What is the difference between LVD & HVD ?
8. What is the difference between SE & Differential (HVD) SCSI ?
9. What is a LUN ?
10.Mention differences between SCS-1,2 and 3 ?
11. What is a terminator ?
12.What are the differences between synchronous & asynchronous SCSI ?
13.What is the default ID of SCSI HBA ?
14.How you will install device drivers for HBA during OS installation
15.What is parallel SCSI daisy chaining ?
16.Explain arbitration & Selection process ?
17. What are the maximum no. of devices supported in SCS-1,2,3?
18. What is the maximum length of cable supported in SCS-1,2,3?
19. What is the difference between a SCSI HBA & SCSI RAID Controller card ?
20. What is the Disk speed of different SCSI drives ?

1. What is RAID?
2. What are the advantages of RAID?
3. What are different levels of RAID?
4. Explain RAID0, RAID1, RAID5 ?
5. Whats the difference between RAID0 & RAID1 ?
6. Whats the difference between RAID1 & RAID5 ?
7. Whats the difference between RAID3 & RAID5 ?
8. Whats the difference between RAID01 & RAID10 ?
9. How many minimum disk drives are needed for R0,R1,R5,R10,R01
10.How RAID 5 works and how parity is calculated ?
11.Other than RAID features what are the other features in Software Management Functionalities ?
12.What is initialization ?
13.What is Check consistency ?
14.What is background verification ?
15.What is a RAID array ?
16.Whats the difference between a JBOD & a RAID array ?
17.When JBOD is preferred over RAID array ?
18.What is a hot spare ?
19.What is a Logical drive or Virtual drive ?
20.What is rebuilding of array ?
21.What you do when a drive in an array fails, how you bring it back to optimal online mode ?
22.What are the different states an array can be in and explain each state?
23.Explain Online,Offline,Degraded states of an array ?
24.What is the difference between a global hotspare & a dedicated hotspare ?
25.How RAID is configured through BIOS ?
26.HoW RAID is configured in OS level?
27.What is the difference between a software & hardware RAID?
28.Which is best RAID level for performance and which is best for redundancy?

If you want answers for above 20 SCSI and 28 RAID Interview Questions please pay only $15 by clicking this button

Building Data Centers Get to know more about them

Building Data Centres is a big topic which i try to simplify through some of the images

Racks containing Machines : Front View

Racks containing Servers : Back View

Cisco Catalyst Switch

CoLocation Unit for Customer's Servers

StorageTek 30TB Backup Server

Complex networking expected in all Data Centers

Nortel Networks equipments

Juniper m40 Edge Router

Cisco Fiber-optic Routers

Fujitsu FLM 600Switch


Chost company's Network


Above pictures are courtesy of http:///www.CIHOST.com which is one of the best companies offering Enterprise Data ,Domain,Hosting Solutions.
Previous Posts on Storage Technology Jobs

Sample Resume for Network administrator,System Administrator,Storage Engineer

If you need a last minute preparation guide for your Network administration or Storage or System administration Interview You will get it for just $50.

This is a highly compressed guide with more than 24 topics concentrated for Storage and System administration . This has
interview questions
interview preparation tips
interview handling
companies from which you can get interviews
job profiles for which you can prepare
job descriptions and their respective preparations

This is a MUST guide for anyone who is struggling to clear interviews. This guide is done after lots of research and it is like a compressed format of many best content from this blog. Get it now and increase your chance of clearing storage interviews.

You can pay through credit card or through paypal account by clicking this button

See Interview Rounds at Sun Microsystems

Email ur friends about this blog & CC me roger.smithson@gmail.com . I Will send u links of Storage or Tech Job Video with lots of Real Industry Exposure for every friend you email. I want to spread the word & help more people thru this blog .U'll also get many more Surprise Gifts to Boost your Career & Salary.

Here are some sample resumes on Network administrator,System Administrator,Storage Engineer.




















Email roger.smithson@gmail.com for Storage related resume
Previous Posts on Storage Technology Jobs

How to get Job in Software Industry:Networking,Unix,Storage any IT domain

If you are searching for a Job in Software industry so here is the good news.This is the only Blog http://storage-jobs.blogspot.com u ever need to read online to get all pointers & information.

Tried & Tested Steps to get Job in IT industry:
1. Be focussed - Start with a plan to get Job
2. Prepare pointers on which domain is ur target & where u have the skills.
3. Prepare Resume/CV - Keep improvising it
4. Learn,Execute & Experience many new concepts/technologies in your target domain
5. Improve your skillset
6. Prepare on the projects which you will include in ur resume/CV
7. Know what are requirements of the job profiles of your interest
8. Improve on the areas which are critical for such job profile
9. Keep taking mock interviews
10.Keep in touch with guys who are in industry & experienced
11.Start attending Interviews - Have preknowledge about the company to which u are going for interviews
12.Even when u fail interviews - Keep your motivation level high
13.Improve on your weakness & Strengthen your Job Profile & knowledge
14. Portray the right attitude towards everyone from ur friends to your interviewers & the HR team
15. Follow up with the interview process

So in next few posts I will reveal how "A Succesful Job Offer Winner" goes with each of thiis step & many more big career secrets/advantages are shared - Keep emailing roger.smithson@gmail.com if you need more help & information.

I have one condition - Share ur knowledge, experience, anything of use to other blog visitors & fellow job hunters & I'll definitely help you - If you are a low headed guy just asking or taking help & never giving anything back - Dont bother to get in touch with me.

I care for people who care for others & I hate the people who just donno how to give something back.

One more good news : If you are willing to share knowledge & any good ORIGINAL postings - I will help you with each of these above said steps to boost your Career.

This blog has more than 150 posts till now & it has most of the info you need to get job so if you want to win read all the PREVIOUS POSTS - Use the "BLOG ARCHIVE" to the top right side & you can see all the articles written.

If you wanna complain or give feedback email me roger.smithson@gmail.com & I appreciate also respect your views.

SAN Implementation Sample images for Reference

EMAIL roger.smithson@gmail.com FOR A FREE SAN STUDENT GUIDE PDF


The components of the above SAN are listed below

COMPONENT NAME : Company/Make : No. of units
1.Server Manager-cluster nodes: ProLiant DL580 :2
2.External Disk System: RAID Array 4100: 1
3.FC-AL Hubs: Fibre Channel Storage Hub : 2
4.FC-AL host-adapters: 64-bit/66-MHz Fibre Channel Host Adapter:4
5.Network Adapters: NC3134 Fast Ethernet NIC 64 PCI Dual Base 10/100:2
(100BaseTX Fast Ethernet)
6.Network Adapters: NC3123 Fast Ethernet NIC PCI 10/100 WOL :4
(100BaseTX Fast Ethernet)

What is Storage Area Networking (Videos)
Storage jobs Salary structure How much they pay
Storage Area Interview Questions
Real Company Interview questions on SAN
40 Storage interview questions with answers
Data Management Interview Questions
How will be a Real Storage Interview
Storage area networking interview questions Series1(Videos)
Storage area networking interview questions series2(Videos)
Live SAN Company interview questions
Blog reader shares Interview questions from his experience

A Simple Layout of a SAN implementation


Another real company SAN implementation

Data management Storage Technology Jobs :Career

EMAIL roger.smithson@gmail.com FOR A FREE SAN STUDENT GUIDE PDF

What is Storage Area Networking (Videos)
Storage jobs Salary structure How much they pay
Storage Area Interview Questions
Real Company Interview questions on SAN
40 Storage interview questions with answers
Data Management Interview Questions
How will be a Real Storage Interview
Storage area networking interview questions Series1(Videos)
Storage area networking interview questions series2(Videos)
Live SAN Company interview questions
Blog reader shares Interview questions from his experience

Disk Library or Virtual Tape Library Storage Solution



How Failover is achieved using a Redundant Cluster Setup