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MCQOPTIONS
This section includes 4320 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 2601. |
In an absolute loading scheme, which loader function is accomplished by assembler. |
| A. | Reallocation |
| B. | Allocation |
| C. | Linking |
| D. | Loading |
| E. | None of the above |
| Answer» B. Allocation | |
| 2602. |
Nonmodifiable procedures are called |
| A. | serially usable procedures |
| B. | concurrent procedures |
| C. | reentrant procedures |
| D. | topdown procedures |
| E. | None of the above |
| Answer» D. topdown procedures | |
| 2603. |
The instruction register |
| A. | is a hardware memory device which denotes the location of the current instruction being executed. |
| B. | is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory. |
| C. | contains the address of the memory location that is to be read from or stored into. |
| D. | 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". |
| E. | None of the above |
| Answer» C. contains the address of the memory location that is to be read from or stored into. | |
| 2604. |
The primary purpose of an operating system is to: |
| A. | make computer easier to use |
| B. | keep system programmers employed |
| C. | make the most efficient use of the hardware |
| D. | allow people to sue the computers |
| E. | None of the above |
| Answer» B. keep system programmers employed | |
| 2605. |
A critical region is |
| A. | a program segment that has not been proved bug-free |
| B. | a program segment that often causes unexpected system crashes |
| C. | a program segment where shared resources are accessed |
| D. | one which is enclosed by a pair of P and V operations on semaphores |
| E. | none is the above |
| Answer» E. none is the above | |
| 2606. |
Assembler language |
| A. | is usually the primary user interface |
| B. | requires fixed-format commands |
| C. | is a mnemonic form of machine language |
| D. | is quite different from the SCL interpreter |
| E. | None of the above |
| Answer» D. is quite different from the SCL interpreter | |
| 2607. |
The primary job of the operating system of a computer is to |
| A. | command resources |
| B. | manage resources |
| C. | provide utilities |
| D. | be user friendly |
| E. | None of the above |
| Answer» C. provide utilities | |
| 2608. |
Which of the following is a measure to test how good or bad a modular design is |
| A. | Module strength |
| B. | Module coupling |
| C. | Static analysis |
| D. | All of the above |
| E. | None of the above |
| Answer» B. Module coupling | |
| 2609. |
The Operating system manages |
| A. | Memory |
| B. | Processor |
| C. | Disks and I/O devices |
| D. | All of the above |
| E. | None of the above |
| Answer» E. None of the above | |
| 2610. |
A hardware device that is capable of executing a sequence of instructions, is known as |
| A. | CPU |
| B. | ALU |
| C. | CU |
| D. | Processor |
| E. | None of the above |
| Answer» E. None of the above | |
| 2611. |
The function(s) performed by the paging software is (are) |
| A. | Implementation of the access environment for all programs in the system |
| B. | Management of the physical address space |
| C. | Sharing and protection |
| D. | All of the above |
| E. | None of the above |
| Answer» E. None of the above | |
| 2612. |
The higher versions of the operating systems are so written that programs designed for earlier versions can still be run. What is it called? |
| A. | Upgradability |
| B. | Upward mobility |
| C. | Universality |
| D. | Upward compatibility |
| E. | None of the above |
| Answer» E. None of the above | |
| 2613. |
If special forms are needed for printing the output, the programmer specifies these forms through? |
| A. | JCL |
| B. | JPL |
| C. | Utility programs |
| D. | Load modules |
| E. | None of the above |
| Answer» B. JPL | |
| 2614. |
Which policy replace a page if it is not in the favoured subset of a process's pages? |
| A. | FIFO |
| B. | LRU |
| C. | LFU |
| D. | Working set |
| E. | None of the above |
| Answer» E. None of the above | |
| 2615. |
Which of the following can be accesses by transfer vector approach of linking? |
| A. | External data segments |
| B. | External subroutines |
| C. | Data located in other procedures |
| D. | All of the above |
| E. | None of the above |
| Answer» C. Data located in other procedures | |
| 2616. |
In which of the storage placement strategies a program is placed in the smallest available hole in the main memory? |
| A. | best fit |
| B. | first fit |
| C. | worst fit |
| D. | buddy |
| E. | None of the above |
| Answer» B. first fit | |
| 2617. |
The command interpreter |
| A. | is usually the primary user interface |
| B. | requires fixed format commands |
| C. | is menu drive |
| D. | is quite different from the SCL interpreter |
| E. | None of the above |
| Answer» B. requires fixed format commands | |
| 2618. |
A task in a blocked state |
| A. | is executable |
| B. | is running |
| C. | must still be placed in the run queues |
| D. | is waiting for same temporarily unavailable resources |
| E. | None of the above |
| Answer» E. None of the above | |
| 2619. |
Which of the following printer can be classified as a page-at-a-time printer? |
| A. | Laser printer |
| B. | Dot-matrix printer |
| C. | Thermal printer |
| D. | Inkjet printer |
| E. | None of the above |
| Answer» B. Dot-matrix printer | |
| 2620. |
The CPU of a computer transfers print output to a temporary disk memory at high speed and then gets back to processing another job without waiting for the output to got to the printer. In this way, the CPU does not remain idle due to its own high speed as compared to the low speed of the printer. What is the name of this memory? |
| A. | External memory |
| B. | I/O memory |
| C. | ROM |
| D. | Buffer memory |
| E. | None of the above |
| Answer» E. None of the above | |
| 2621. |
Which of the following registers hold the information before it goes to the decoder |
| A. | control register |
| B. | data register |
| C. | accumulator |
| D. | address register |
| E. | None of the above |
| Answer» C. accumulator | |
| 2622. |
A modern electronic computer is a machine that is meant for |
| A. | doing quick mathematical calculations |
| B. | input, storage, manipulation and outputting of data |
| C. | electronic data processing |
| D. | performing repetitive tasks accurately |
| E. | None of the above |
| Answer» C. electronic data processing | |
| 2623. |
A flat-bed plotter uses a pen which moves in two directions across a piece of paper fixed on a flat-bed. Can you tell who controls the movements of this pen? |
| A. | microfilm |
| B. | microfiche |
| C. | film card |
| D. | COM |
| E. | None of the above |
| Answer» D. COM | |
| 2624. |
The desirable characteristic(s) of a memory system is (are) |
| A. | speed and reliability |
| B. | low power consumption |
| C. | durability and compactness |
| D. | All of the above |
| E. | None of the above |
| Answer» E. None of the above | |
| 2625. |
The CPU chip used in a computer is partially made out of: |
| A. | Copper |
| B. | Iron |
| C. | Gold and silver |
| D. | Silica |
| E. | None of the above |
| Answer» E. None of the above | |
| 2626. |
What type of magnetic material is normally used in bubble memories? |
| A. | Magnetic core |
| B. | Cobalt |
| C. | Garnet |
| D. | Metallic |
| E. | None of the above |
| Answer» D. Metallic | |
| 2627. |
The control unit of a microprocessor |
| A. | stores data in the memory |
| B. | accepts input data from a keyboard |
| C. | Performs arithmetic / logic / functions |
| D. | All of the above |
| E. | None of the above |
| Answer» F. | |
| 2628. |
A byte is comprised of: |
| A. | One bit |
| B. | Four bits |
| C. | Eight bits |
| D. | Sixteen bits |
| E. | None of the above |
| Answer» D. Sixteen bits | |
| 2629. |
What is the name of the temporary data storage area between a peripheral device and the CPU which compensates for the difference between their speeds? |
| A. | Backing storage |
| B. | Buffer |
| C. | Main storage |
| D. | Temporary storage |
| E. | None of the above |
| Answer» C. Main storage | |
| 2630. |
Which of the following is the fastest? |
| A. | CPU |
| B. | magnetic tapes and disks |
| C. | video terminal |
| D. | sensors, mechanical controllers |
| E. | None of the above |
| Answer» B. magnetic tapes and disks | |
| 2631. |
In which year were chips used inside the computer for the first time? |
| A. | 1964 |
| B. | 1975 |
| C. | 1977 |
| D. | 1981 |
| E. | None of the above |
| Answer» C. 1977 | |
| 2632. |
The invention of the slide rule is attributed to |
| A. | Babbage |
| B. | Oughtred |
| C. | Pascal |
| D. | Napier |
| E. | None of the above |
| Answer» C. Pascal | |
| 2633. |
System maintenance: |
| A. | is usually not necessary |
| B. | is necessary on all systems, regardless of how good |
| C. | is not required if the system is well written |
| D. | always requires several programs |
| E. | None of the above |
| Answer» C. is not required if the system is well written | |
| 2634. |
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 |
| A. | to be fair |
| B. | to balance resource utilization |
| C. | to obey priorities |
| D. | to be predictable |
| E. | None of the above |
| Answer» C. to obey priorities | |
| 2635. |
Multiprogramming systems: |
| A. | are easier to develop than single programming system |
| B. | execute each job faster |
| C. | execute more jobs in the same time period |
| D. | are used only on large mainframe computers |
| E. | None of the above |
| Answer» D. are used only on large mainframe computers | |
| 2636. |
Which, of the following, is true for testing and debugging? |
| A. | Testing checks for logical errors in the programs, while debugging is a process of correcting those errors in the program |
| B. | Testing detects the syntax errors in the program while debugging corrects those errors in the program |
| C. | Testing and debugging indicate the same thing |
| D. | All of the above |
| E. | None of the above |
| Answer» B. Testing detects the syntax errors in the program while debugging corrects those errors in the program | |
| 2637. |
Information in a memory that is no longer valid or wanted is known as |
| A. | non-volatile |
| B. | volatile |
| C. | surplus |
| D. | garbage |
| E. | None of the above |
| Answer» E. None of the above | |
| 2638. |
The principles of structured programming forbid the use of |
| A. | WHILE-DO |
| B. | GOTO |
| C. | IF-THEN-ELSE |
| D. | DO-WHILE |
| E. | None of the above |
| Answer» C. IF-THEN-ELSE | |
| 2639. |
Which of the following capabilities is required for a system program to execute more than one program at a time? |
| A. | word processing |
| B. | compiling |
| C. | virtual memory |
| D. | multitasking |
| E. | None of the above |
| Answer» E. None of the above | |
| 2640. |
In analyzing the compilation of PL/I program, the description "creation of more optimal matrix" is associated with |
| A. | Assembly and output |
| B. | Code generation |
| C. | Syntax analysis |
| D. | Machine independent optimization |
| E. | None of the above |
| Answer» E. None of the above | |
| 2641. |
Scheduling is |
| A. | allowing jobs to use the processor |
| B. | unrelated to performance consideration |
| C. | not required in uniprocessor systems |
| D. | the same regard-less of the purpose of the system |
| E. | None of the above |
| Answer» B. unrelated to performance consideration | |
| 2642. |
In an absolute loading scheme, which loader function is accomplished by loader |
| A. | Reallocation |
| B. | Allocation |
| C. | Linking |
| D. | Loading |
| E. | None of the above |
| Answer» E. None of the above | |
| 2643. |
The computational technique used to compute the disk storage address of individual records is called: |
| A. | bubble memory |
| B. | key fielding |
| C. | dynamic reallocation |
| D. | hashing |
| E. | None of the above |
| Answer» E. None of the above | |
| 2644. |
For how many processes which are sharing common data, the Dekker's algorithm implements mutual exclusion? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| E. | None of the above |
| Answer» C. 3 | |
| 2645. |
Which of the following is not true about documentation? |
| A. | Documentation, of a system, should be as clear and direct as possible |
| B. | Documentation increases the maintenance time and cost |
| C. | Documentation gives better understanding of the problem |
| D. | All of the above |
| E. | None of the above |
| Answer» C. Documentation gives better understanding of the problem | |
| 2646. |
Feed back queue |
| A. | are very easy to implement |
| B. | dispatch tasks according to execution characteristics |
| C. | are used to favor real-time tasks |
| D. | require manual intervention to implement properly |
| E. | None of the above |
| Answer» C. are used to favor real-time tasks | |
| 2647. |
In which addressing mode the operand is given explicitly in the instruction? |
| A. | absolute mode |
| B. | immediate mode |
| C. | indirect mode |
| D. | index mode |
| E. | None of the above |
| Answer» C. indirect mode | |
| 2648. |
The technique, for sharing the time of a computer among several jobs. Which switches jobs so rapidly such that each job appears to have the computer to itself: |
| A. | time sharing |
| B. | time out |
| C. | time domain |
| D. | FIFO |
| E. | None of the above |
| Answer» B. time out | |
| 2649. |
In MS-DOS, relocatable object files and load modules have extensions |
| A. | .OBJ and .COM or .EXE, respectively |
| B. | .COM and .OBJ, respectively |
| C. | .EXE and .OBJ, respectively |
| D. | .DAS and .EXE, respectively |
| E. | None of the above |
| Answer» B. .COM and .OBJ, respectively | |
| 2650. |
The state transition initiated by the user process itself in an operating system is |
| A. | block |
| B. | dispatch |
| C. | wake up |
| D. | timer run out |
| E. | None of the above |
| Answer» B. dispatch | |