Description : Which statement is valid about computer program? A) High level languages must be converted into machine language to execute B) High level language programs are more efficient and faster to execute C) It ... to identify errors in high level language program than in low level programs D) All of above
Last Answer : Answer : A
Description : The CPU of a system having 1 MIPS execution rate needs 4 machine cycles on an average for executing an instruction. The fifty percent of the cycles use memory bus. A memory read/write employs one machine cycle. For ... (A) 500 Kbytes/sec (B) 2.2 Mbytes/sec (C) 125 Kbytes/sec (D) 250 Kbytes/sec
Last Answer : (D) 250 Kbytes/sec
Description : A specific editor has 200 K of program text, 15 K of initial stack, 50 K of initialized data, and 70 K of bootstrap code. If five editors are started simultaneously, how much physical memory is needed if shared text is used ? (A) 1135 K (B) 335 K (C) 1065 K (D) 320 K
Last Answer : (B) 335 K
Description : The command javac A) Converts a java program into binary code B) Converts a java program into bytecode C) Converts a java program into machine language D) None of the above.
Last Answer : B) Converts a java program into bytecode
Description : Which of the following are the principles tasks of the linker? I. Resolve external references among separately compiled program units. II. Translate assembly language to machine code. III. Relocate code and data relative to the beginning of ... (A) I and II (B) I and III (C) II and III (D) I and IV
Last Answer : (B) I and III
Description : State whether true or false. i) init( ) of servlet is called after a client request comes in ii) Servlets are ultimately converted into JSP A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true
Last Answer : A) i-false, ii-false
Description : The given maximization assignment problem can be converted into a minimization problem by (A) subtracting each entry in a column from the maximum value in that column. (B) subtracting each entry in the table ... value in that column. (D) adding maximum value of the table to each entry in the table.
Last Answer : (B) subtracting each entry in the table from the maximum value in that table.
Description : The term 'Operating System' means: a) A set of programs which helps to display b) A set of programs which helps to control computer working c) Set of programs which helps to convert high level instructions to machine level instructions and vise-versa d) None of the above
Last Answer : Ans: B
Description : In …………….., the virus places an identical copy of itself into other programs or into certain system areas on the disk. A) Dormant phase B) Propagation phase C) Triggering phase D) Execution phase
Last Answer : B) Propagation phase
Description : ______ are system programs, which are responsible for proper functioning of devices. A. Device Drivers B. Language translators C. System Utilities D. Operating system
Last Answer : A. Device Drivers
Description : In the ........... normal form, a composite attribute is converted to individual attributes. A) First B) Second C) Third D) Fourth
Last Answer : A) First
Description : High level programming language can be converted to machine language using which of the following? (A) Oracle (B) Compiler (C) Mat lab (D) Assembler
Last Answer : (B) Compiler
Description : ………… system consists of programs, data files and documentation A) Conceptual B) Logical C) Physical D) None of the above
Last Answer : C) Physical
Description : A compiler is a translating program which A) Translates instruction of a high level language into machine language B) Translates entire source program into machine language program C) It is not involved in program’s execution D) All of above
Last Answer : Answer : D
Description : A compiler is a translating program which a. Translates instruction of a high level language into machine language b. Translates entire source program into machine language program c. It is not involved in program’s execution d. All of above
Last Answer : All of above
Description : Assembler is: a) a program that places programs into memory and prepares them for execution b) a program that automate the translation of assembly language into machine language c) is a program that appears to execute a source program as if it were machine language d) None of The Above
Last Answer : b) a program that automate the translation of assembly language into machine language
Description : Assembly Language- 1) uses alphabetic codes in place of binary numbers used in machine language 2) is the easiest language to write programs 3) need not be translated into machine language
Last Answer : 1) uses alphabetic codes in place of binary numbers used in machine language
Description : Assembly Language 1 uses alphabetic codes in place of binary numbers used in machine language 2 is the easiest language to write programs 3 need not be translated into machine language 4 none of these
Last Answer : 1 uses alphabetic codes in place of binary numbers used in machine language
Last Answer : d. All of above
Description : What are the tasks performed by operating system?
Last Answer : It loads programs into memory and executes them. It controls the operation of input/output and storage devices. It manages files and folders. It allows creating a password to protect computers from unauthorized use. It detects hardware failures and displays messages to fix them.
Description : Java Servlet i) is key component of server side java development ii) is a small pluggable extension to a server that enhances functionality iii) runs only in Windows Operating System iv) allows developers to customize any java ... & iv are true C) ii, iii & iv are true D) i, ii & iv are true
Last Answer : D) i, ii & iv are true
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 : File management function of the operating system includes i) File creation and deletion ii) Disk scheduling iii) Directory creation iv) Mapping file in secondary storage. A) i, ii and iii only B) i, iii and iv only C) ii, iii and iv only D) All i, ii, iii and iv
Last Answer : B) i, iii and iv only
Description : Which of the following are the functions of operating system? i) recovering from errors ii) facilitating input/output iii) facilitating parallel operation iv) sharing hardware among users v) implementing user interface A) i, ii, ... only C) ii, iii, iv and v only D) All i, ii, iii, iv and v
Last Answer : D) All i, ii, iii, iv and v
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
Description : Match the following mechanisms for interrupting the execution of a process and their uses. i) Interrupt a) Call to an operating system function ii) Trap b) Reaction to an asynchronous external event iii) Supervisor Call c) Handling of a error ... -a, iii-b C) i-b, ii-c, iii-a D) i-a, ii-c, iii-b
Last Answer : C) i-b, ii-c, iii-a
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
Description : The different types of tables maintained by the operating system are ............. A) memory, logical , I/O file B) memory, I/O, file, physical C) memory, I/O, file, process D) memory, logical, I/O, physical
Last Answer : C) memory, I/O, file, process
Description : The two central themes of modern operating system are ............... A) Multiprogramming and Distributed processing B) Multiprogramming and Central Processing C) Single Programming and Distributed processing D) None of above
Last Answer : A) Multiprogramming and Distributed processing
Description : The first batch operating system was developed in the ................. by General Motors for use on an IBM 701. A) mid 1940's B) mid 1950's C) mid 1960's D) mid 1970's
Last Answer : B) mid 1950's
Description : .................. refers to the ability of an operating system to support multiple threads of execution with a single process. A) Multithreading B) Multiprocessing C) Multiexecuting D) Bi-threading
Last Answer : A) Multithreading
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 of the following is/are the functions of operating system? i) Sharing hardware among users. ii) Allowing users to share data among themselves. iii) Recovering from errors. iv) Preventing users from interfering with one another. ... only C) i, iii, iv and v only D) All i, ii, iii, iv and v
Description : In ............. generation of operating system, operating system designers develop the concept of multiprogramming in which several jobs are in main memory at once. A) First B) Second C) Third D) Fourth
Last Answer : C) Third
Description : Which of the following is/ are the part of operating system? A) Kernel services B) Library services C) Application level services D) All of the above
Description : . Costs for a computer based information system include the salaries of the system analysts and computer programmers. costs for a computer based information system include the ... ) Development, Development B) Development, Operating C) Operating, Development C) Operating, Operating
Last Answer : B) Development, Operating
Description : The versions of windows operating system like windows XP and window Vista uses following file system: (A) FAT-16 (B) FAT-32 (C) NTFS (NT File System) (D) All of the above
Last Answer : (D) All of the above
Description : A thread is usually defined as a light weight process because an Operating System (OS) maintains smaller data structure for a thread than for a process. In relation to this, which of the following ... separate stack for each thread. (D) OS does not maintain virtual memory state for each thread.
Last Answer : (B) OS maintains only CPU registers for each thread.
Description : Possible thread states in Windows 2000 operating system include: (A) Ready, running and waiting (B) Ready, standby, running, waiting, transition and terminated. (C) Ready, running, waiting, transition and terminated (D) Standby, running, transition and terminated.
Last Answer : (B) Ready, standby, running, waiting, transition and terminated.
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.
Description : In windows 2000 operating system all the processor-dependent code is isolated in a dynamic link library called (A) NTFS file system (B) Hardware abstraction layer (C) Microkernel (D) Process Manager
Last Answer : (B) Hardware abstraction layer
Description : Linux operating system uses (A) Affinity Scheduling (B) Fair Preemptive Scheduling (C) Hand Shaking (D) Highest Penalty Ratio Next
Last Answer : (B) Fair Preemptive Scheduling Explanation: Linux uses two process-scheduling algorithms: 1. A time-sharing algorithm for fair preemptive scheduling between multiple processes 2. A real-time algorithm for tasks where absolute priorities are more important than fairness
Description : A part of Windows 2000 operating system that is not portable is (A) Device Management (B) Virtual Memory Management (C) Processor Management (D) User Interface
Last Answer : (B) Virtual Memory Management
Description : The character set used in Windows 2000 operating system is .... (A) 8 bit ASCII (B) Extended ASCII (C) 16 bit UNICODE (D) 12 bit UNICODE
Last Answer : (C) 16 bit UNICODE
Description : In an operating system, indivisibility of operation means : (A) Operation is interruptable (B) Race - condition may occur (C) Processor can not be pre-empted (D) All of the above
Last Answer : (C) Processor can not be pre-empted
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
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.
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
Description : Consider three CPU intensive processes P1, P2, P3 which require 20, 10 and 30 units of time, arrive at times 1, 3 and 7 respectively. Suppose operating system is implementing Shortest Remaining Time first (preemptive scheduling) ... end of Ready queue are not counted). (A) 3 (B) 2 (C) 4 (D) 5
Last Answer : (A) 3