Discussion
Home ‣ Technical Questions ‣ Operating Systems Comments
- Question
Explain soundex() and metaphone() ?
- Correct Answer
- soundex() The soundex() function calculates the soundex key of a string A soundex key is a four character long alphanumeric string that represent English pronunciation of a word he soundex() function can be used for spelling applications < ?php $str = "hello"; echo soundex($str); ? > metaphone() The metaphone() function calculates the metaphone key of a string A metaphone key represents how a string sounds if said by an English speaking person The metaphone() function can be used for spelling applications < ?php echo metaphone("world"); ? >
- 1. What type of operating system uses the NTFS file system ?
Options- A. Windows
- B. Mac OS X
- C. Unix
- D. All of these Discuss
- 2. Which of the following is Not an Operating System?
Options- A. UNIX
- B. Windows NT
- C. C++
- D. DOS Discuss
- 3. The list of coded instructions is called
Options- A. Algorithm
- B. Flowchart
- C. Utility programs
- D. Computer program Discuss
- 4. Default read write and execute permissions given to a file for owner, group and others are
Options- A. 6-4-4
- B. 6-4-2
- C. 6-4-6
- D. 6-6-6 Discuss
- 5. A UNIX user named Bob wants to replace his chess program with a new one, but he is not sure where the old one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command: java -classpath /test:/home/bob/downloads/*.jar games.Chess Bob's CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar What is a possible location for the Chess.class file?
Options- A. /test/Chess.class
- B. /home/bob/Chess.class
- C. /test/games/Chess.class
- D. /user/lib/games/Chess.class Discuss
- 6. High level language is also called as ?
Options- A. Business oriented language
- B. Mathematically oriented language
- C. Problem oriented language
- D. All of above Discuss
- 7. When is a system in safe state? Discuss
- 8. What are local and global page replacements? Discuss
- 9. What are demand-paging and pre-paging? Discuss
- 10. What is the perfect page size when designing an operating system ? Discuss
Operating Systems problems
Search Results
Correct Answer: Windows
Explanation:
Windows operating system uses the NTFS file system.
Correct Answer: C++
Explanation:
C++ is not an Operating System.
An Operating System is a collection of system programs that manages all the other programs application programs in a computer as well as the allocation and use of hardware resources such as the CPU, Memory and the Hard Disk Drive.
It acts as an interface between the hardware and the user level program.
It controls and facilitates the overall operation of a computer.
Here
UNIX : UNIX is a popular multi-user, multitasking operating system (OS) developed at Bell Labs.
Windows NT : Windows NT is a family of operating systems produced by Microsoft, the first version of which was released in July 1993.
DOS : DOS is Disk Operating System. The term DOS can refer to any operating system.
C++ : C++ is a programming language and computing platform.
Hence, C++ is not an Operating System.
Correct Answer: Computer program
Explanation:
A computer program is a collection of instructions that performs a specific task when executed by a computer
Correct Answer: 6-4-4
Explanation:
Default permissions given to a file are:
Owner - read write and execute - 6
group - write - 4
others - write - 4
Correct Answer: /user/lib/games/Chess.class
Explanation:
/user/lib/games/Chess.class could be the possible location of the file
Correct Answer: All of above
Correct Answer: The set of dispatchable processes is in a safe state if there exists at least one temporal order in which all processes can be run to completion without resulting in a deadlock
Correct Answer: Local replacement means that an incoming page is brought in only to the relevant process address space Global replacement policy allows any page frame from any process to be replaced The latter is applicable to variable partitions model only
Correct Answer: With demand paging, a page is brought into memory only when a location on that page is actually referenced during execution With pre-paging, pages other than the one demanded by a page fault are brought in The selection of such pages is done based on common access patterns, especially for secondary memory devices
Correct Answer: The perfect paging size varies from system to system, so there is no single best when it reaches to page size There are several factors to consider in order to come up with a fitting page size, such as paging time, page table, and its effect on the total performance of the operating system
Comments
There are no comments.More in Technical Questions:
Programming
Copyright ©CuriousTab. All rights reserved.