UNIX - LINUX Interview Questions and Answers : Advanced

1. How are devices represented in UNIX? All devices are represented by files called special files that are located in/dev directory. Thus, device files and other files are named and accessed in the same way. A 'regular file' is just an ordinary data file in the disk. A 'block special file' represents a device with characteristics similar to a disk (data transfer in terms of blocks). A 'character...

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Linux Interview Questions And Answers

You need to see the last fifteen lines of the files dog, cat and horse. What command should you use?tail -15 dog cat horseThe tail utility displays the end of a file. The -15 tells tail to display the last fifteen lines of each specified file. Who owns the data dictionary?The SYS user owns the data dictionary. The SYS and SYSTEM users are created when the database is created. You routinely compress...

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Top networking questions

What are 10Base2, 10Base5 and 10BaseT Ethernet LANs ?What is the difference between an unspecified passive open and a fully specified passive openExplain the function of Transmission Control BlockWhat is a Management Information Base (MIB)What is anonymous FTP and why would you use it?What is a pseudo tty?What is REX?What does the Mount protocol do ?What is External Data Representation?What is...

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Some Basic Interview Question : Linux Based

You attempt to use shadow passwords but are unsuccessful. What characteristic of the /etc/passwd file may cause this? Choose one: a. The login command is missing. b. The username is too long. c. The password field is blank. d. The password field is prefaced by an asterick.You create a new user account by adding the following line to your /etc/passwd file. bobm:baddog:501:501:Bob Morris:/home/bobm:/bin/bash...

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Some Interview Question: CCNA & Basic Networking

Basics Q & A {Switching} 1) What is unicast and how does it work?** Unicast is a one-to-one transmission method. A single frame is sent from the source to a destination on a network. When this frame is received by the switch, the frame is sent on to the network, and the network passes the frame to its destination from the source to a specific destination on a network.2) What is multicast and...

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