Important Objectives Of System Software and Operating System

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1-Translator for low level programming language were termed as-Assembler

2-Analysis which determines the meaning of a statement once its grammatical structure becomes known is termed as-Semantic analysis

3-Load address for the first word of the program is called-load address origin

4-Symbolic names can be associated with-data or instruction

5-The translator which perform macro expansion is called a-Macro pre-processor

6-Shell is the exclusive feature of-UNIX

7-A program in execution is called-Process

8-Interval between the time of submission and completion of the job is called-Turnaround time

9-A scheduler which selects processes from secondary storage device is called-Medium term scheduler.

10-The scheduling in which CPU is allocated to the process with least CPU-burst time is called-Shortest job first Scheduling

11-The term ‘page traffic’ describes-the movement of pages in and out of memory.

12-The “turn-around” time of a user job is the-total time taken to execute the job.

13-Which of the following can be used as a criterion for classification of data structures used in language processing. A-nature of a data structure B-purpose of a data structure C-lifetime of a data structure D-All  Ans-D

14-Memory utilization factor shall be computed as follows-memory in use/total memory connected.
15-Program ‘preemption’ is-forced deallocation of the CPU from a program which is executing on the CPU.

16-An assembler is-machine dependant.

17-Which of the following is not a fundamental process state-
(A) ready (B) terminated(C) executing (D) blocked  Ans-D

18-Which of the following is true?

(A) Block cipher technique is an encryption technique.
(B) Steam cipher technique is an encryption technique.

(C) Both (A) and (B).  (D) Neither of (A) and (B).                       Ans-C

19-Which of the following approaches do not require knowledge of the system state?

(A) deadlock detection. (B) deadlock prevention.(C) deadlock avoidance. (D) none of the above.                  Ans-D

20-Program generation activity aims at-Automatic generation of program

21-Which amongst the following is not an advantage of Distributed systems?

(A) Reliability (B) Incremental growth (C) Resource sharing (D) None of the above     Ans: (A)

22- An imperative statement- Indicates an action to be performed during execution of assembled program

23- Which of the following loader is executed when a system is first turned on or Restarted- Bootstrap loader

24- Poor response time is usually caused by-
(A) Process busy (B) High I/O rates (C) High paging rates (D) Any of the above     Ans-D

25- “Throughput” of a system is- Number of programs processed by it per unit time