TRB-CS-Master online coaching center (QUIZ-8)Operating System
Quiz
- Information in a memory that is no longer valid or wanted is known as
- non-volatile
- volatile
- surplus
- garbage
- Which of the following filename extension suggests that the file is a backup copy of another file?
- TXT
- COM
- BAS
- BAK
- Relocation bits used by relocating loader are specified (generated) by
- Relocating loader itself
- Linker
- Assembler or translator
- Macro processor
- Nonmodifiable procedures are called
- serially usable procedures
- concurrent procedures
- reentrant procedures
- topdown procedures
- . The instruction register
- A. is a hardware memory device which denotes the location of the current instruction being executed.
- is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
- contains the address of the memory location that is to be read from or stored into.
- contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
- Which of the following scheduling objectives should be applied to the following: the system should admit jobs to create a mix that will keep most devices busy
- to be fair
- to balance resource utilization
- to obey priorities
- to be predictable
- Multiprogramming systems:
- are easier to develop than single programming system
- execute each job faster
- execute more jobs in the same time period
- are used only on large mainframe computers
- In an absolute loading scheme, which loader function is accomplished by assembler.
- Reallocation
- Allocation
- Linking
- Loading
- . A task in a blocked state
- is executable
- is executable
- is executable
- is executable
- System maintenance:
- is usually not necessary
- is necessary on all systems, regardless of how good
- is not required if the system is well written
- always requires several programs
- Which of the following statements is not true about the FORTRAN language?
- FORTRAN is a high level language
- A FORTRAN program, written for the IBM-PC, is totally different from a FORTRAN program written for execution on the SUN machine
- FORTRAN is extensively used to write programs for performing scientific computations
- All of the above
- A linker
- creates a load module
- is not necessary with variable partitions
- must be run after the loader
- is not needed with a good compiler
- . Uniform Symbols Table
- contains all constants in the program
- a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure.
- consists of a full or partial list of the token's as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
- a permanent table which lists all key words and special symbols of the language in symbolic form.
- In which of the storage placement strategies a program is placed in the smallest available hole in the main memory?
- best fit
- first fit
- worst fit
- worst fit
- In which addressing mode, the effective address of the operand is generated by adding a constant value to the contents of register?
- absolute mode
- indirect mode
- immediate mode
- index mode
- If special forms are needed for printing the output, the programmer specifies these forms through?
- JCL
- JPL
- Utility programs
- Load modules
- Which policy replace a page if it is not in the favoured subset of a process's pages?
- FIFO
- LRU
- LFU
- Working set
- Which of the following can be accesses by transfer vector approach of linking?
- External data segments
- External subroutines
- Data located in other procedures
- All of the above
- Which of the following terms refers to the degree to which data in a database system are accurate and correct?
- data security
- data validity
- data independence
- data integrity
- In analyzing the compilation of PL/I program, the term "Syntax analysis" is associated with
- recognition of basic syntactic constructs through reductions.
- recognition of basic elements and creation of uniform symbols
- creation of more optional matrix.
- use of macro processor to produce more optimal assembly code
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