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Linux Kernel Architecture


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Description : Linux Kernel Architecture

Last Answer : Linux Kernel Architecture: The kernel is a layer between Linux OS and hardware. When Linux is running in main memory it is divided into two parts one is user space and second is kernel space. 1.User Space 2.Kernel Space

Description : what are the significance of kernel in RTOS ?

Last Answer : In every RTOS there is the kernel. The kernel is the core supervisory software. The kernel provides minimal logic. Scheduling is also provided by the kernel. The resource- ... device managment service.RTOS kernel has interrupt management service.RTOS kernel has memory management service.

Description : A .................... architecture assigns only a few essential functions to the kernel, including address spaces, Inter process communication(IPC) and basic scheduling. A) Monolithic kernel B) Micro kernel C) Macro kernel D) Mini kernel

Last Answer : B) Micro kernel

Description : List and explain the various functions supported by Linux/RTLinux.

Last Answer : Various functions of RTLinux is as follows: Interrupt handling functions

Last Answer : Various features of Linux that are used in embedded systems are as follows : Linux is multiuser operating system. Linux is open source and free. Linux can be ... Linux supports handling of errors. Real-time Linux supports the group scheduling functions.

Description : What are the advantages of using Linux?

Last Answer : Advantages of Linux are as follows :Linux is open source and free.Linux Is multiuser and multitasking operating system.Linux is the stable operating system.Linux is reliable.Linux can be modify according to requirements.Linux is the secure operating system.

Description : What is meant by embedded Linux?

Last Answer : Linux is the operating system if we use this operating system in embedded system devices then it is known as embedded Linux. Linux is open source and free.

Description : Draw the Internet architecture [TCP/IP architecture] and explain the functionalities of each layer in detail.

Last Answer : ∙ NET1, NET2, and so on. combination of hardware (e.g., a network adaptor) and software(e.g., a network device driver). Ethernet or Fiber Distributed Data Interface (FDDI) ... ), and SMTP (Simple Mail Transfer Protocol, or electronic mail), enable interoperation of popular applications.

Description : Draw the OSI Network architecture and explain the functionalities of each layer in detail.

Last Answer : Physical layer ∙ Data link layer ∙ Network layer ∙ Transport layer ∙ Session layer ∙ Presentation layer ∙ Application layer

Description : List and describe three general approaches to improve designer productivity.

Last Answer : Automation: The task of using a computer program to replace manual design effort. The program replaces manual design effort. Synthesis. Reuse: The ... correctness/completeness of each design step. Hardware/software co-simulation.

Last Answer : Common computation models: Sequential program model Statements, rules for composing statements, semantics for executing them Communicating process model ... Object-oriented model For breaking complex software into simpler, well-defined pieces

Description : Describe different RT level computational and sequential components used to design single function processors.

Last Answer : RT-level combinational components:- To reduce the complexity in digital logic, combinational components are used, which are more powerful than logic gates.  Such combinational ... during a clock edge. An asynchronous inputs value effects the circuit independent of the clock.

Description : Describe the various blocks and their functions in pipelined ADC architecture.

Description : What is RDBMS KERNEL?

Last Answer : Two important pieces of RDBMS architecture are the kernel, which is the software, and the data dictionary, which consists of the system-level data structures used by the kernel to manage ... ; dispatches and schedules user requests; and manages space usage within its table-space structures.

Description : …………… are very effective because a mode switch is not required to switch from one thread to another. A) Kernel-level threads B) User-level threads C) Alterable threads D) Application level threads

Last Answer : B) User-level threads

Description : Process Management function of an operating system kernel includes. A) Process creation and termination. B) Process scheduling and dispatching C) Process switching D) All of the above

Last Answer : D) All of the above

Description : ........... is a large kernel, including scheduling file system, networking, device drivers, memory management and more. A) Monolithic kernel B) Micro kernel C) Macro kernel D) Mini kernel

Last Answer : A) Monolithic kernel

Description : ............... is a large operating system core provides a wide range of services. A) Multilithic kernel B) Monolithic kernel C) Micro kernel D) Macro kernel

Last Answer : D) Macro kernel

Description : ........... is a large kernel containing virtually the complete operating system, including, scheduling, file system, device drivers and memory management. A) Multilithic kernel B) Monolithic kernel C) Micro kernel D) Macro kernel

Last Answer : B) Monolithic kernel

Description : Which one of the following locates data on network devices : a. ARP Cache b. Kernel Statistics c. Routing Table d. Memory

Last Answer : c. Routing Table

Description : The ____ is the large central portion of the kernel and contains most of the starch. a. aleurone c. endosperm b. bran d. germ

Last Answer : c. endosperm

Description : Let the time taken to switch between user mode and kernel mode of execution be T1 while time taken to switch between two user processes be T2. Which of the following is correct? (A) T1 < T2 (B) T1 > T2 (C) T1 = T2 (D) Nothing can be said about the relation between T1 and T2.

Last Answer : (A) T1 < T2

Description : WOW32 is a: (A) Win 32 API library for creating processes and threads. (B) Special kind of file system to the NT name space. (C) Kernel - mode objects accessible through Win32 API (D) Special execution environment used to run 16 bit Windows applications on 32 - bit machines.

Last Answer : (D) Special execution environment used to run 16 bit Windows applications on 32 - bit machines.

Description : Which of the following is not a basic primitive of the Graphics Kernel System(GKS) ? (A) POLYLINE (B) POLYDRAW (C) FILL AREA (D) POLYMARKER

Last Answer : (B) POLYDRAW

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

Description : One of the disadvantages of user level threads compared to Kernel level threads is (1) If a user level thread of a process executes a system call, all threads in that process are ... privileges. (4) The library procedures invoked for thread management in user level threads are local procedures.

Last Answer : If a user level thread of a process executes a system call, all threads in that process are blocked.

Description : In IT terminology failure in the kernel is called as (1) Crash (2) C r a s h dump (3) Dump (4) Kernel error

Last Answer :  Crash

Description : A type of internet account, in which the computer is not connected directly to the net. (1) Shell Account (2) Kernel Account (3) Server Account (4) TCP/IP Account

Last Answer :  TCP/IP Account

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

Last Answer : 1 Unix

Description : What is the first process started on Linux? What is the config file for init and what does it contain?

Last Answer : „init, PID 1. /etc/inittab. It contains info about runlevels, the default run-level, specific traps (crtl+alt+del) and some daemons that need to be started by init and monitored if respawn is specified (a good example are the physical consoles available on the server tty1, tty2)‟

Description : What is mean by the term “load average” within a Linux context, and how is it assessed on a Linux system?

Last Answer : Load average refers to the average number of processes in the run queue, i.e. processes that are either running on the CPU, waiting for the CPU, or in an uninterruptible sleep state waiting on I/ ... among the most widely used. It can also be assessed by reading the contents of /proc/loadavg.

Description : How to shrinking root FS in linux?

Last Answer : While online enlarging is no problem, you have to umount for shrinking! We assume lv_root have 10g, now going to shrink with 1g so after shrinking root FS should be 9g. At first take backup (NEVER SHRINK ... 9G" . Then reduce the size of the logical volume "lvreduce -L -1G /dev/rootvg/lv_root"

Description : In Linux OS, what is the file server?

Last Answer : The file server is a machine that shares its disk storage and files with other machines on the network

Description : Tell The Two Boot loader Names in Linux?

Last Answer : The Most Popular Boot Loaders are… LILO GRUB

Description : s UNIX and Linux Both Are same?

Last Answer : No,Both are different.But Both are writen in POSIX standards , thats why lots of authors used to refer as same, but strictly saying both are differnt.

Description : Which is not the open-source OS: a. Debian b. BSD Unix c. Gentoo & Red Hat Linux d. Windows

Last Answer : d. Windows

Description : In linux, how can we change which databases are started during a reboot?

Last Answer : - Edit /etc/oratab

Description : What command will you start to run the installation of Oracle software on Linux?

Last Answer : runInstaller

Description : C can be used on A) Only MS-Dos operating System B) Only Linux operating system C) Only Windows operating system D) All of the above

Last Answer : D) All of the above

Description : 7 Which OS is widely used in the world A)Windows B)LINUX C)IOS D)NONE

Last Answer : A)Windows

Description : What is the latest version of UNIX A)LINUX

Last Answer : A)LINUX

Description : LINUX is an a. Application b. Software c. Toolkit d. Operating System

Last Answer : d. Operating System

Description : Which OS is widely used in the world A)Windows B)LINUX C)IOS D)NONE

Last Answer : A)Windows

Description : What is the latest version of UNIX A)LINUX

Last Answer : A)LINUX

Description : How to Emulate Windows on Linux ?

Last Answer : How to Emulate Windows on Linux Open-source may be the in thing for many computer users, but most people who are used to Microsoft Windows may still be tentative to use it, or do not have ... you can run some of the most useful programs in Windows without ever having to leave the Linux platform.

Description : How to Double Boot Linux and Windows ?

Last Answer : How to Double Boot Linux and Windows Computer experts have their own opinions on what operating system is best suited for a computer, but many of them prefer to use a double-boot system that ... these steps, you can multi-boot to Linux or Windows to maximize your choices in computer applications.

Description : Which of the following is not open source software? (A) Apache HTTP server (B) Internet explorer (C) Fedora Linux (D) Open office

Last Answer : (B) Internet explorer

Description : Which one of the following is not an Operating System ? (A) IBM AIX (B) Linux (C) Sun Solaris (D) Firefox

Last Answer : (D) Firefox

Description : Which one of the following is different from other members? (A) Google (B) Windows (C) Linux (D) Mac

Last Answer : (A) Google 

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