CMSC 424(A+ Guaranteed answers)

difference between protection and security correct answers Protection keeps the system from killing itself. Security keeps other things from killing the system what two things does the OS do correct answers resource allocator (manages resources) and a control program (handles errors) what is t...

Professors Name and Email correct answers Lawrence Sebald TA's Names and Emails correct answers Vedmurtty Chavan Naveen Bansal Operating System correct answers A program that acts as an intermediary between the user of a computer and the computer hardware -Execute user programs and...

What is a system call? correct answers Programming interface to the services provided by the OS kernel. request to the operating system to allow user to wait for I/O completion What is a kernel module? correct answers a piece of code that can be added to the kernel at runtime to extend its funct...

What is the name of our instructor? correct answers Gerald Tompkins What is the email of our instructor? correct answers What does the fork system call do? correct answers The operating system will create a new process that contains the same code/data as the parent process. The state is copie...

T/F: "A* tree search is not complete if some step costs are equal to zero." correct answers False. If we have finite number of states and avoid cycles/loops, it will be complete. (Me: OHHH I think that it will complete, but it might not be Optimal bc we haven't said anything about whether the ...

Device controller correct answers Electronic circuit capable of operating a specific I/O device using binary signals. Its interface is a set of hardware registers and flags, which may be set by and/or examined by device drivers. Device driver correct answers Device-specific program that implement...

Preemption correct answers Ability of the OS to interrupt a currently executing task and allocate the CPU to another task. Non-preemption correct answers Once a task starts executing, it continues until it completes or voluntarily gives up the CPU. Dispatcher correct answers The kernel routine...

Virtual memory correct answers a collection of one or more logical address spaces, each of which may exceed the size of physical memory Logical address correct answers referred to as virtual address Demand paging correct answers principle of loading a page into memory only when the page is nee...

concurrency correct answers the act of multiple processes (or threads) executing at the same time. critical section (CS) correct answers a segment of code that cannot be entered by a process while another process is executing a corresponding segment of the code. guarantee mutual exclusion corr...

when to use Evolutionary Computation correct answers space to be search is large, and best solution is not necessarily required types of evolutionary computation correct answers genetic algorithms, evolution strategies, genetic programming basic idea of genetic algorithms correct answers creat...

What best describes "Absolute Path"? correct answers Path name relative to the top of the hierarchy (root) What best describes "Relative Path"? correct answers Path name relative to the current working directory, based on current location List contents in a directory correct answers ls ...

System Software correct answers Programs such as the operating system that controls the operation of a computer and its device that enables the computer to run application software Application Software correct answers Programs that enable users to perform specific tasks on a computer Operating...

What is a sequence of instructions which enables a computer to perform a desired task? correct answers a program How many BITs are in a byte? correct answers 8 What number system does the computer use to process information? correct answers Base-2(binary) In computers the main circuit board...

The requirements for the building foundation will most likely be found on which sheet in a drawing set? correct answers S101 Construction Documents = Drawings + Construction Contract + ....... correct answers Specifications The General Notes sheets are generally located at the beginning of the...