What are the features of the Unix operating system?

What are the features of the Unix operating system?
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flexibe, faster to run programme ,very secure , portability
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Which of the following is/are example(s) of an Operating System? A. UNIX B. Linux C. Windows XP D. All of the above

Description : Which of the following is/are example(s) of an Operating System? A. UNIX B. Linux C. Windows XP D. All of the above

Last Answer : D. All of the above

C language was invented to write an operating system called UNIX. C is a successor of _______language which was introduced around 1970: a) A Language b) B Language c) Both of Above

Description : C language was invented to write an operating system called UNIX. C is a successor of _______language which was introduced around 1970: a) A Language b) B Language c) Both of Above

Last Answer : b) B Language

DOS, Windows XP, Windows Vista, Unix, Linux, MAC/OS X etc. are examples of: a) Operating System Software b) Package Software c) Utility Software d) None of These

Description : DOS, Windows XP, Windows Vista, Unix, Linux, MAC/OS X etc. are examples of: a) Operating System Software b) Package Software c) Utility Software d) None of These

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Which of the following is not an example of Operating System? 1) Windows 98 2) BSD Unix 3) Microsoft Office XP 4) Red Hat Linux

Description : Which of the following is not an example of Operating System? 1) Windows 98 2) BSD Unix 3) Microsoft Office XP 4) Red Hat Linux

Last Answer : 3) Microsoft Office XP

Which company did SCO sue for using code UNIX in its Operating System ? 1) RedaHat 2) SuSE 3) IBM 4) Microsoft

Description : Which company did SCO sue for using code UNIX in its Operating System ? 1) RedaHat 2) SuSE 3) IBM 4) Microsoft

Last Answer : 4) Microsoft

Unix Operating System use _________ Multitasking 1) Preemptive 2) Cooperative 3) multiprogrammingb 4) None

Description : Unix Operating System use _________ Multitasking 1) Preemptive 2) Cooperative 3) multiprogramming 4) None

Last Answer : 1) Preemptive

Operating System for Microcomputer system is- 1) Unix 2) Linux 3) Windows 4) all

Description : Operating System for Microcomputer system is- 1) Unix 2) Linux 3) Windows 4) all

Last Answer : 1) Unix

The operating system called UNIX is typically used for - 1) Desktop computers 2) Laptop computers 3) Supercomputers 4) All of these

Description : The operating system called UNIX is typically used for - 1) Desktop computers 2) Laptop computers 3) Supercomputers 4) All of these

Last Answer : 4) All of these

Unix Operating System use _________ Multitasking 1 Preemptive 2 Cooperative 3 multiprogramming 4 None

Description : Unix Operating System use _________ Multitasking 1 Preemptive 2 Cooperative 3 multiprogramming 4 None

Last Answer : 1 Preemptive

Operating System for Microcomputer system is 1 Unix 2 Linux 3 Windows 4 all

Description : Operating System for Microcomputer system is 1 Unix 2 Linux 3 Windows 4 all

Last Answer : 1 Unix

The operating system called UNIX is typically used for - 1 Desktop computers 2 Laptop computers 3 Supercomputers 4 All of these

Description : The operating system called UNIX is typically used for - 1 Desktop computers 2 Laptop computers 3 Supercomputers 4 All of these

Last Answer : 4 All of these

……………….. is a example of an operating system that support single user process and single thread. A) UNIX B) MS-DOS C) OS/2 D) Windows 2000

Description : ……………….. is a example of an operating system that support single user process and single thread. A) UNIX B) MS-DOS C) OS/2 D) Windows 2000

Last Answer : B) MS-DOS

___________is the most common operating system for running CRM software A. UNIX B. Windows NT C. Windows Vista D. Windows XP

Description : ___________is the most common operating system for running CRM software A. UNIX B. Windows NT C. Windows Vista D. Windows XP

Last Answer : A. UNIX

Which statement is not true about process 0 in the Unix operating system? (A) Process 0 is called init process. (B) Process 0 is not created by fork system call. (C) After forking process 1, process 0 becomes swapper process. (D) Process 0 is a special process created when system boots.

Description : Which statement is not true about process 0 in the Unix operating system? (A) Process 0 is called init process. (B) Process 0 is not created by fork system call. (C) After forking process 1, process 0 becomes swapper process. (D) Process 0 is a special process created when system boots.

Last Answer : (A) Process 0 is called init process.

In Unix operating system, special files are used to : (A) buffer data received in its input from where a process reads (B) provide a mechanism to map physical device to file names (C) store list of file names plus pointers associated with i-nodes (D) store information entered by a user application program or utility program

Description : In Unix operating system, special files are used to : (A) buffer data received in its input from where a process reads (B) provide a mechanism to map physical device to file names (C ... pointers associated with i-nodes (D) store information entered by a user application program or utility program

Last Answer : (B) provide a mechanism to map physical device to file names 

Which of the following option with reference to UNIX operating system is not correct?

Description : Which of the following option with reference to UNIX operating system is not correct? (A) INT signal is sent by the terminal driver when one types and it is a request to terminate the current operation. ( ... that it defaults to producing a core dump if not caught. (D) KILL is a blockable signal.

Last Answer : (D) KILL is a blockable signal.

In UNIX operating system, when a process creates a new process using the fork() system call, which of the following state is shared between the parent process and child process? (A) Heap (B) Stack (C) Shared memory segments (D) Both Heap and Stack

Description : In UNIX operating system, when a process creates a new process using the fork() system call, which of the following state is shared between the parent process and child process? (A) Heap (B) Stack (C) Shared memory segments (D) Both Heap and Stack

Last Answer : (C) Shared memory segments 

The UNIX operating system is suitable for (1) Multi user (2) Real-Time Processing (3) Distributed Processing (4) Single user

Description : The UNIX operating system is suitable for (1) Multi user (2) Real-Time Processing (3) Distributed Processing (4) Single user

Last Answer : Multi user

The UNIX operating system is suitable for : (1) Multi user (2) Real-Time Processing (3) Distributed Processing (4) Single user

Description : The UNIX operating system is suitable for : (1) Multi user (2) Real-Time Processing (3) Distributed Processing (4) Single user

Last Answer : Multi user

State weather the following statement is true or false for Sendmail. 1).Sendmail is a command-line tool designed for most UNIX-like operating systems. 2).It define a method of transferring mail, and acts as a client/server that supports multiple mail protocols 3). Sendmail exists in both open source and proprietary software packages. A. 1. True, 2. False, 3. true B. 1. true, 2. false, 3. false C. 1. false, 2. false, 3. false D. 1. true, 2. true, 3. false

Description : State weather the following statement is true or false for Sendmail. 1).Sendmail is a command-line tool designed for most UNIX-like operating systems. 2).It define a method of transferring mail, and acts as a client/server ... . false C. 1. false, 2. false, 3. false D. 1. true, 2. true, 3. false

Last Answer : A. 1. True, 2. False, 3. true

How can you tell what shell you are running on UNIX system?

Description : How can you tell what shell you are running on UNIX system?

Last Answer : You can do the Echo $RANDOM. It will return a undefined variable if you are from the C Shell, just a return prompt if you are from the Bourne shell, and a 5 digit random numbers if you are from the Korn shell. You could also do a ps -l and look for the shell with the highest PID.

The agency that sits between the user and the UNIX system is called the A. logic B. profile C. shell D. erxc E. None of the above

Description : The agency that sits between the user and the UNIX system is called the A. logic B. profile C. shell D. erxc E. None of the above

Last Answer : C. shell

State true or false. i) Unix, support multiple user process but only support one thread per process. ii) A java run time environment is an example of a system of one process with multiple threads. A) True, False B) True, True C) False, True D) False, False

Description : State true or false. i) Unix, support multiple user process but only support one thread per process. ii) A java run time environment is an example of a system of one process with multiple threads. A) True, False B) True, True C) False, True D) False, False

Last Answer : B) True, True

A UNIX file system has 1 KB block size and 4-byte disk addresses. What is the maximum file size if the inode contains ten direct block entries, one single indirect block entry, one double indirect block entry and one triple indirect block entry? (A) 30 GB (B) 64 GB (C) 16 GB (D) 1 GB

Description : A UNIX file system has 1 KB block size and 4-byte disk addresses. What is the maximum file size if the inode contains ten direct block entries, one single indirect block entry, one double indirect block entry and one triple indirect block entry? (A) 30 GB (B) 64 GB (C) 16 GB (D) 1 GB

Last Answer : (C) 16 GB

The directory structure used in Unix file system is called (A) Hierarchical directory (B) Tree structured directory (C) Directed acyclic graph (D) Graph structured directory

Description : The directory structure used in Unix file system is called (A) Hierarchical directory (B) Tree structured directory (C) Directed acyclic graph (D) Graph structured directory

Last Answer : (C) Directed acyclic graph

................. maintains the list of free disk blocks in the Unix file system. (A) I-node (B) Boot block (C) Super block (D) File allocation table

Description : ................. maintains the list of free disk blocks in the Unix file system. (A) I-node (B) Boot block (C) Super block (D) File allocation table

Last Answer : (C) Super block 

The Unix Kernel maintains two key data structures related to processes, the process table and the user structure. Which of following information is not the part of user structure? (A) File descriptor table (B) System call state (C) Scheduling parameters (D) Kernel stack

Description : The Unix Kernel maintains two key data structures related to processes, the process table and the user structure. Which of following information is not the part of user structure? (A) File descriptor table (B) System call state (C) Scheduling parameters (D) Kernel stack

Last Answer : (C) Scheduling parameters

A unix file system has 1-KB blocks and 4-byte disk addresses. What is the maximum file size if i-nodes contain 10 direct entries and one single, double and triple indirect entry each? (A) 32 GB (B) 64 GB (C) 16 GB (D) 1 GB

Description : A unix file system has 1-KB blocks and 4-byte disk addresses. What is the maximum file size if i-nodes contain 10 direct entries and one single, double and triple indirect entry each? (A) 32 GB (B) 64 GB (C) 16 GB (D) 1 GB

Last Answer : (C) 16 GB

Which of the following statement is not correct with reference to cron daemon in UNIX O.S? (A) The cron daemon is the standard tool for running commands on a predetermined schedule. (B) It starts when the system boots and runs as long as the system is up. (C) Cron reads configuration files that contain list of command lines and the times at which they invoked. (D) Crontab for individual users are not stored.

Description : Which of the following statement is not correct with reference to cron daemon in UNIX O.S? (A) The cron daemon is the standard tool for running commands on a predetermined schedule. (B) It starts ... command lines and the times at which they invoked. (D) Crontab for individual users are not stored.

Last Answer : (D) Crontab for individual users are not stored.

Which of the following information about the UNIX file system is not correct? (A) Super block contains the number of i-nodes, the number of disk blocks, and the start of the list of free disk blocks. (B) An i-node contains accounting information as well as enough information to locate all the disk blocks that holds the file’s data. (C) Each i-node is 256-bytes long. (D) All the files and directories are stored in data blocks.

Description : Which of the following information about the UNIX file system is not correct? (A) Super block contains the number of i-nodes, the number of disk blocks, and the start of the list of free disk blocks. (B ... Each i-node is 256-bytes long. (D) All the files and directories are stored in data blocks. 

Last Answer : (C) Each i-node is 256-bytes long.

Which statement is not correct about “init” process in Unix? (1) It is generally the parent of the login shell. (2) It has PID 1. (3) It is the first process in the system. (4) Init forks and execs a ‘getty’ process at every port connected to a terminal.

Description : Which statement is not correct about “init” process in Unix? (1) It is generally the parent of the login shell. (2) It has PID 1. (3) It is the first process in the system. (4) Init forks and execs a ‘getty’ process at every port connected to a terminal.

Last Answer : It is the first process in the system.

Some features of a specific operating system are given below: 1. Free/Open source -Technology

Description : Some features of a specific operating system are given below: 1. Free/Open source -Technology

Last Answer : (i) Linux(ii) With Linux, you get four desktop screens known as workspace.

What are the features of multiprocessing operating system ?

Description : What are the features of multiprocessing operating system ?

Last Answer : Features of multiprocessing operating system: 1. Can process multiple programs at once. 2. If one processor does not work, another processor may continue to work. 3. When a processor is empty, it ... goes bad, the work does not stop completely. . Creating systems is quite complex and expensive.

What are the features of operating system?

Description : What are the features of operating system?

Last Answer : Different operating systems have differing features, though they all have the primary function of controlling the software and programs running on a computer or other device. Popular features include: A start ... OS X, Linux using Compiz or similar, and Windows Vista Premium, Business, or Ultimate)

List any four features of open source operating system.

Description : List any four features of open source operating system.

Last Answer : 1. Open Source: open source OS code is freely available and it is community based development project. Multiple team's works in collaboration to enhance the capability of operating system and it is ... issuing a command in Linux Terminal or Shell. Linux can also run Windows applications if needed.

In a *nix shell how can I touch a file naming it with the system's current UNIX timestamp?

Description : In a *nix shell how can I touch a file naming it with the system's current UNIX timestamp?

Last Answer : answer:touch `date +%s` Backticks (on the same key as the tilde, next to 1/!) are really powerful. They work by evaling the contained command and then substituting the output. You can do just about anything on the shell in a single line using backticks, pipes, and xargs. Learn ‘em, love ‘em.

What do programs do when they are Stopped in Unix / Linux?

Description : What do programs do when they are Stopped in Unix / Linux?

Last Answer : It waits in memory, internal coding has no effect as the ^Z is a system command and pauses the program where it is. There is no memory management as the program and all variables stay in memory.

What's a nice book to really get started with UNIX ?

Description : What's a nice book to really get started with UNIX ?

Last Answer : There are hundreds, if not thousands of books on Unix and Linux. One of the best, in my opinion,covers the politics and philosophy of the Open Source movement in contrast to the ... was the command line which can be read here: http://artlung.com/smorgasborg/C_R_Y_P_T_O_N_O_M_I_C_O_N.shtml

Unix command to show distro info?

Description : Unix command to show distro info?

Last Answer : answer:uname -a might do the trick. This is the output on my Mac. Macintosh:~ ****************$ uname -a Darwin Macintosh.local 9.2.0 Darwin Kernel Version 9.2.0: Tue Feb 5 16:13:22 PST 2008; root:xnu-1228.3.13~1/RELEASE_I386 i386

Best advice for learning about the foundations of Unix/Linux?

Description : Best advice for learning about the foundations of Unix/Linux?

Last Answer : This is my favorite Unix book. The Unix Admin Hand Book It will have the type of information you are looking for. You can probably go the library and pick up the first edition of the book as well. I did that for awhile but I eventually just bought the book.

Where can I find simple Unix commands for Mac's Terminal online?

Description : Where can I find simple Unix commands for Mac's Terminal online?

Last Answer : answer:Here are some simply commands. But if you're trying to cancel an operation, your best bet might be to type top and return, and find the process that you want to kill. Take not if its PID, ... , type kill and then the PID. For example, kill 1234. Then hit return. This will kill your process.

Is there a unix command to reverse the lines in a file?

Description : Is there a unix command to reverse the lines in a file?

Last Answer : answer:tac tac (cat spelled backwards) works like cat, but reverse the order of the lines (last line is written out first).

What is UNIX ?

Last Answer : UNIX is an operating system.

What language was used to develop UNIX OS?

Description : What language was used to develop UNIX OS?

Last Answer : The UNIX Time Sharing System began development at Bell Labs in1969 on the PDP-7 and PDP-9 using assembly language. It was laterported to the PDP-11, also in assembly language. This led to ... in the summer of 1973. The resulting new system was aboutone third greater than the assembler version.

Transferring Files From Windows To UNIX Server?

Description : Transferring Files From Windows To UNIX Server?

Last Answer : Many companies are switching to a different platform because ofthe many issues they have with Windows. UNIX is one of the mostpopular choices, but often requires that employees be trained. Thissystem is difficult ... to a Windows server.The transfer process is simple, but may take some time. It is

What is the advantage to using unix hosting instead of Windows?

Description : What is the advantage to using unix hosting instead of Windows?

Last Answer : Unix Web Hosting is very reasonably priced and offers tons of other features. Unix can also offer you a domain name and help with setting everything up.

What are the advantages of unix based hosting?

Description : What are the advantages of unix based hosting?

Last Answer : One of the major advantages of unix based hosting is that unix is free, so the cost is not an issue. Another cost benefit is that several free applications are available for Unix based servers so the ... are more applications will be able to run on your site than if you had chosen another platform.

What is the difference between Unix and Linux?

Description : What is the difference between Unix and Linux?

Last Answer : To put it very generically, Linux is an operating system kernel, and UNIX is a certification for operating systems. The UNIX standard evolved from the original Unix system developed at Bell Labs. ... A comprehensive list of differences between Linux and "UNIX" isn't possible, because there are sev

Can one export to multiple files?/ Can one beat the Unix 2 Gig limit? (for DBA

Description : Can one export to multiple files?/ Can one beat the Unix 2 Gig limit? (for DBA

Last Answer : From Oracle8i, the export utility supports multiple output files. This feature enables large exports to be divided into files whose sizes will not exceed any operating system limits (FILESIZE= parameter). When ... > scott.exp.gz & # feed the pipe exp userid=scott/tiger file=exp.pipe ...

_______ is the protocol suite for thecurrent Internet. A) TCP/IP B) NCP C) UNIX D) ACM

Description : _______ is the protocol suite for thecurrent Internet. A) TCP/IP B) NCP C) UNIX D) ACM

Last Answer : TCP/IP