Some of the kernel’s tasks are resource allocation, process management, memory management, input/output device management, and security management. It basically mediates access to system resources. The kernel is the vital center of a computer operating system. The service layer acts as a source to resources for application programs such as folder manipulation, input/output device access, starting/stopping programs, and creating, moving, and resizing GUI windows.
4.1) Application Based Performance Tips The following tuning tips, based on the applications running on IIS, can help administrators with IIS management and optimize the performance of IIS. 4.1.1) Remove competing applications and services So as to give the client the most ideal execution, IIS must have the important equipment assets: CPU, plate and memory. Essential IIS observing will show whether the assets vital are accessible. Different applications and administrations on the same PC might devour those assets and contrarily affect IIS web server execution. To free up equipment assets, use IIS server observing and verify whether alternate applications or administrations are left sit and unused.
Next a dash is entered in the squares, where both inputs change simultaneously. Finally remaining squares associated unstable states are filled in. Step 2. Primitive flow table is reduced to a smaller number of rows if two or more stable states are placed in the same row of the flow table (merging a number of stable states in the same row). This is done in the following table.
Hw #2 Ch 14 Review Questions and Exercises, P 879: 1, 7, 10, 20, 38, 43, 45, 52, 60, 62; Programming Challenges, P 884: 4, 5, 6. Describe the difference between an instance member variable and a static member variable. The main difference between an instance member variable and a static member variable is each class object has its own copy of class’s instance member variables. If a class’s member variable is static, however, only one instance of the variable exists in memory. All objects of that class have access to that one variable.
When FreeFlyer sends a checkout request for a license, the master responds and then serves the license to the client system. If the master server fails, whether due to hardware failure, loss of network connection, or something else, the secondary license server becomes the master and will then serve licenses to client systems. If both the primary and secondary license servers go down, licenses will no longer be served to FreeFlyer users until at least two of the three license servers are up and running again. More information about the mechanics of three-server redundant systems can be found in the FlexNet License Administration guide referenced at the end of this
The jobtracker assigns the tasks to the tasktrackers running on many slave nodes or on a cluster of machines. The tasktrackers send messages called heartbeats regularly to the jobtracker to update the status, such as alive, idle, busy, etc. If suppose a task fails or times out, or a node is dead, the jobtracker will re-schedule the tasks to run on available nodes automatically. HDFS component consists of a single namenode and multiple datanodes. The namenode maintains the metadata about the data present on each datanode.
M1.Explain the importance of the quality of code The use of function in programming - In a programming there are different sections of the program that we want to repeat it. There are different type of instruction can be given a name. They are called functions and procedures. Algorithms can be divided into functions or procedures. Only instead of having to type out the entire instruction set of the need to save time by running the function.
Process of booting the kernel The process of starting a kernel is different between the Linux kernel and Android kernel. Figure 2.3 illustrates the processes of booting Android and Linux operating systems. Both processes have six steps that are similar but do have significant differences that are discussed in this section. Figure2.3 Android and Linux kernel boot processes
1. Discuss the differences and similarities between a peer-to peer network and a client server network. Answer: The following are characteristics of a peer-to-peer network that differ from those of a client server network. In a peer-to-peer network the operating system of each node or host is responsible for controlling access to its resources without any centralized control. This type of network has decentralized management of its administration, system performance, resources and security.
In versions of IIS before 6.0, all the features were run on the System account, permitting exploits to run wild on the system. Under 6.0 many of the processes have been brought under a Network Services account that has fewer privileges. Specifically, this implies, if there were an exploit on that component, it would not necessarily compromise the entire
Each configuration has its advantages and disadvantages; complexity or flexibility, cost (hardware and software), performance, scalability and user load. We have software that is designated with a site license, meaning that we can run unlimited instances at our physical address. We have other software packages that are licensed to an individual user’s device. Multiple variables must be considered in deciding how software is loaded and presented to the user base. Each software package has it individual licensing and system requirements.
External Commands Examples: grep sort uniq Listing all shell built-in commands - "help" command Bash shell has a command called "help". Just type "help", and hit enter.... it will display all the built-in commands. How do you determine if a given command is an internal or external? You can use one of the following: which command type command Searching all over the filesystem. (... not a preferred way.