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In the first round most the questions are from resume. 1. Where is the sar file is located & why we use sar 2. Write a IPtables rule to block a particular site? 3. Where is the syslog log file is created 4. What is LVM & Explain how to extended a LVM, reduce a LVM 5. How to scan LUNS attached on Redhat Linux? 6. How did you installed ESXi Server 7. How do you do create a standard partition procedure? 8. What do you know by Package manager YUM & Configuration file of it? 9. How do you install VMware ESXi server? 10.Where is the syslog server log file is stored? 11.What is a RAID and what RAID Do you use, i've answered RAID 5. What are the Minimum disk required for RAID 5 12.What are the RUn Levels in Linux and what are those Run Levels? 13.What is TCP Wrappers and what are the security precautions that you follow? In the 2nd Round 1.Tell me about your self? 2.What Level of Support are you providing now? L1, L2, or L3 3.What is the Current CTC are you getting? 4.What is the Expected CTC ? 5. In the 3rd Round Managerial Round They've conducted a Telephonic round with Project Manager. We've a discussion on the package the is expected and alb alb laaaa 1.What is MBR? 2.What is LUN? 3.What is WWN? 4.What is fstab? 5.What are Run Levels and explain about each? 6.Can you explain the how SAN is configured? Entire Flow like Fiber Channel and etc.. User Management & Security, FTP, DNS, DHCP, Proxy, Firewall(NAT, IP tables, IP Filter), LDAP, NFS, NIS, PAM Modules LVM Snapshot Network concepts:- Linux Routing, Bonding, Bridges, Virtual IPs, Xen/VM Networking Performance tuning Linux servers and virtual machines scripting bash,perl. installing and configure new software on linux Linux user and sudo Linux soft/Hardware RAID Hardering Redhat linux remote disk access with NFS Design and document SOP(Software operation procedures)
avatar

Linux Administrator

Interviewed at Cognizant

3.6★
May 2, 2015

In the first round most the questions are from resume. 1. Where is the sar file is located & why we use sar 2. Write a IPtables rule to block a particular site? 3. Where is the syslog log file is created 4. What is LVM & Explain how to extended a LVM, reduce a LVM 5. How to scan LUNS attached on Redhat Linux? 6. How did you installed ESXi Server 7. How do you do create a standard partition procedure? 8. What do you know by Package manager YUM & Configuration file of it? 9. How do you install VMware ESXi server? 10.Where is the syslog server log file is stored? 11.What is a RAID and what RAID Do you use, i've answered RAID 5. What are the Minimum disk required for RAID 5 12.What are the RUn Levels in Linux and what are those Run Levels? 13.What is TCP Wrappers and what are the security precautions that you follow? In the 2nd Round 1.Tell me about your self? 2.What Level of Support are you providing now? L1, L2, or L3 3.What is the Current CTC are you getting? 4.What is the Expected CTC ? 5. In the 3rd Round Managerial Round They've conducted a Telephonic round with Project Manager. We've a discussion on the package the is expected and alb alb laaaa 1.What is MBR? 2.What is LUN? 3.What is WWN? 4.What is fstab? 5.What are Run Levels and explain about each? 6.Can you explain the how SAN is configured? Entire Flow like Fiber Channel and etc.. User Management & Security, FTP, DNS, DHCP, Proxy, Firewall(NAT, IP tables, IP Filter), LDAP, NFS, NIS, PAM Modules LVM Snapshot Network concepts:- Linux Routing, Bonding, Bridges, Virtual IPs, Xen/VM Networking Performance tuning Linux servers and virtual machines scripting bash,perl. installing and configure new software on linux Linux user and sudo Linux soft/Hardware RAID Hardering Redhat linux remote disk access with NFS Design and document SOP(Software operation procedures)

What is IPC? What are the various schemes available? The term IPC (Inter-Process Communication) describes various ways by which different process running on some operating system communicate between each other. Various schemes available are as follows: Pipes: One-way communication scheme through which different process can communicate. The problem is that the two processes should have a common ancestor (parent-child relationship). However this problem was fixed with the introduction of named-pipes (FIFO). Message Queues : Message queues can be used between related and unrelated processes running on a machine. Shared Memory: This is the fastest of all IPC schemes. The memory to be shared is mapped into the address space of the processes (that are sharing). The speed achieved is attributed to the fact that there is no kernel involvement. But this scheme needs synchronization. Various forms of synchronisation are mutexes, condition-variables, read-write locks, record-locks, and semaphores.
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Linux Systems Administrator

Interviewed at GoDaddy

3.9★
Jul 23, 2013

What is IPC? What are the various schemes available? The term IPC (Inter-Process Communication) describes various ways by which different process running on some operating system communicate between each other. Various schemes available are as follows: Pipes: One-way communication scheme through which different process can communicate. The problem is that the two processes should have a common ancestor (parent-child relationship). However this problem was fixed with the introduction of named-pipes (FIFO). Message Queues : Message queues can be used between related and unrelated processes running on a machine. Shared Memory: This is the fastest of all IPC schemes. The memory to be shared is mapped into the address space of the processes (that are sharing). The speed achieved is attributed to the fact that there is no kernel involvement. But this scheme needs synchronization. Various forms of synchronisation are mutexes, condition-variables, read-write locks, record-locks, and semaphores.

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