Low-level Programming Exam Practice Tests - 255 Verified Questions

Low-level Programming Exam Practice Tests

Course Introduction

Low-level Programming explores the foundational aspects of computer systems by teaching students how to write software that interacts directly with hardware. The course covers essential topics such as memory management, pointers, hardware interfacing, and the use of assembly language or other low-abstraction programming languages like C. Students learn how computer instructions are executed, how to optimize code for performance and efficiency, and how operating systems manage hardware resources. By gaining a deeper understanding of what occurs "under the hood," students develop skills critical for systems programming, embedded development, and performance-critical applications.

Recommended Textbook

Assembly Language for x86 Processors 7th Edition by Kip R. Irvine

Available Study Resources on Quizplus

17 Chapters

255 Verified Questions

255 Flashcards

Source URL: https://quizplus.com/study-set/3977 Page 2

Chapter 1: Basic Concepts Assessment

Available Study Resources on Quizplus for this Chatper

14 Verified Questions

14 Flashcards

Source URL: https://quizplus.com/quiz/79902

Sample Questions

Q1) In any numbering system,the radix specifies the range of alphanumeric digits that can be assigned to a single digit position.

A)True

B)False

Answer: True

Q2) The hexadecimal representation of decimal 35 is 33h

A)True

B)False

Answer: False

Q3) A virtual machine may be constructed from software.

A)True

B)False

Answer: True

Q4) A compiler decodes and executes one program statement at a time.

A)True

B)False

Answer: False

To view all questions and flashcards with answers, click on the resource link above. Page 3

Chapter 2: X86 Processor Architecture Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79901

Sample Questions

Q1) Data travels along a bus with n bits running in parallel,where the bus is n bits wide.

A)True

B)False

Answer: True

Q2) In Real-address mode,multiple programs can run at the same time,but they can only address physical memory.

A)True

B)False Answer: False

Q3) In 64-bit mode,you can use three more general-purpose registers than in 32-bit mode.

A)True

B)False Answer: False

Q4) The lower half of the RCX register is called EBX.

A)True

B)False

Answer: True

To view all questions and flashcards with answers, click on the resource link above.

Page 4

Chapter 3: Assembly Language

Fundamentals-assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79900

Sample Questions

Q1) The .DATA directive must always occur before the .CODE directive.

A)True

B)False Answer: False

Q2) The following is a valid data definition statement: varX WORD 100h,65536

A)True

B)False

Answer: False

Q3) An identifier in assembly language may only contain letters and digits.

A)True

B)False

Answer: False

Q4) In the following statement,EAX is called the source operand: mov EBX,EAX

A)True

B)False

Answer: True

To view all questions and flashcards with answers, click on the resource link above. Page 5

Chapter 4: Data Transfers,addressing,and

Arithmetic-assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79899

Sample Questions

Q1) The following instruction will produce 1FFFFFFCh in EDX: movsx edx,-4

A)True

B)False

Q2) The EIP register can be the source operand of a MOV,ADD,or SUB instruction.

A)True

B)False

Q3) The following instructions will set the Overflow flag: mov al,80h sub al,-5

A)True

B)False

Q4) When you move a 16-bit constant or an 8-bit constant into a 64-bit register,the upper bits of the destination operand are cleared. A)True

B)False

Q5) The format for the ADD instruction is: MOV source,destination A)True B)False

Page 6

To view all questions and flashcards with answers, click on the resource link above.

Chapter 5: Procedures-assessment

Available Study Resources on Quizplus for this Chatper

16 Verified Questions

16 Flashcards

Source URL: https://quizplus.com/quiz/79898

Sample Questions

Q1) By default,labels are visible only within the procedure in which they are declared.

A)True

B)False

Q2) The WriteHex procedure displays integers in hexadecimal format only if an additional formatting parameter is passed in the EDX register.

A)True

B)False

Q3) The RET instruction pops the value pointed to by EBP off the stack into the instruction pointer..

A)True

B)False

Q4) The RandomRange procedure always produces a random integer between 0 and 0FFFFFFFFh

A)True

B)False

Q5) The EBP register points to the last value pushed on the runtime stack.

A)True

B)False

To view all questions and flashcards with answers, click on the resource link above. Page 7

Chapter 6: Conditional Processing Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79897

Sample Questions

Q1) The OR instruction can be used to find the intersection of two bit-mapped sets.

A)True

B)False

Q2) The destination operand of the OR instruction cannot be a memory operand.

A)True

B)False

Q3) The XOR instruction can be used to generate the two's complement of an integer.

A)True

B)False

Q4) With unsigned operands,the CMP instruction sets the Carry flag when the destination operand is less than the source operand.

A)True

B)False

Q5) The JO instruction is used after an operation involving signed integers.

A)True

B)False

Q6) For any two integers n and m,((n XOR m)XOR m)produces n.

A)True

B)False

To view all questions and flashcards with answers, click on the resource link above. Page 8

Chapter 7: Integer Arithmetic Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79896

Sample Questions

Q1) The destination operand of the IMUL instruction may be a memory operand.

A)True

B)False

Q2) The binary value of AL after the following instructions have executed is 00001101. mov al,01101011b shr al,2

A)True

B)False

Q3) The SAR instruction is suitable for signed integers.

A)True

B)False

Q4) The ROR instruction is only suitable for signed integers.

A)True

B)False

Q5) The SAR and SHR instructions perform the same operation. A)True

B)False

To view all questions and flashcards with answers, click on the resource link above.

Page 9

Chapter 8: Advanced Procedures Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79895

Sample Questions

Q1) The C calling convention requires the calling program to reset the stack pointer after the subroutine has returned.

A)True B)False

Q2) The CALL instruction can only have a single operand. A)True B)False

Q3) The following is a valid LOCAL declaration: LOCAL index:DWORD

A)True B)False

Q4) When a 32-bit mode prgram needs to pass a 64-bit integer argument to a subroutine on the stack,you should push the low-order doubleword of the argument first,followed by the high-order doubleword. A)True B)False

Q5) The C calling convention is used by the Irvine32 library. A)True B)False

To view all questions and flashcards with answers, click on the resource link above. Page 10

Chapter 9: Strings and Arrays Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79894

Sample Questions

Q1) The Str_compare procedure returns no value in the EAX register.Instead,it sets the Carry and Zero flags.

A)True

B)False

Q2) On the first pass through an array of N items,the inner loop of a bubble sort executes N - 1 times.

A)True

B)False

Q3) The REPNE prefix repeats an instruction while the Zero flag is set,and ECX is greater than zero.

A)True

B)False

Q4) The EDX and ECX registers can be combined in a based-indexed operand. A)True

B)False

Q5) Binary search uses a divide and conquer strategy.

A)True B)False

To view all questions and flashcards with answers, click on the resource link above. Page 11

Chapter 10: Structures and Macros Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79893

Sample Questions

Q1) The following statements create five uninitialized DWORD variables in which each variable name is a member of the following list: monday,tuesday,wednesday,thursday,friday: FOR varName,<monday,tuesday,wednesday,thursday,friday> DWORD varName <> ENDM

A)True

B)False

Q2) Replacing macro invocations with procedure calls tends to make a program run faster.

A)True

B)False

Q3) A structure variable cannot be declared inside another structure. A)True

B)False

Q4) The IFNDIF directive permits assembly if two arguments are equal. A)True

B)False

To view all questions and flashcards with answers, click on the resource link above. Page 12

Chapter 11: Ms-Windows Programming Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79892

Sample Questions

Q1) The CREATE_NEW constant can be passed to the creationDisposition parameter in the CreateFile function.

A)True

B)False

Q2) The Win32 ReadConsoleInput function reads character input from the console buffer,but does not remove the characters from the buffer.

A)True

B)False

Q3) If you want to open an existing file,you must call the Win32 OpenFile function.

A)True

B)False

Q4) The SetConsoleTextAttribute function can be used to change the color of text that has already been written to the screen buffer.

A)True

B)False

Q5) The SetFilePointer function permits you to start reading from any point in a file. A)True B)False

To view all questions and flashcards with answers, click on the resource link above. Page 13

Chapter 12: Floating-Point Processing and Instruction

Encoding Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79891

Sample Questions

Q1) If we were to denormalize the binary number 1.1101 x 2³,the result would be binary 1110.1.

A)True

B)False

Q2) A double extended-precision real occupies 60 of storage.

A)True

B)False

Q3) The single-precision real representation of zero contains zeros in the mantissa and ones in the exponent.

A)True

B)False

Q4) Not all values between 0 and 1 can be represented by a single-precision significand,but all such values can be represented by an extended-precision significand. A)True

B)False

Q5) The first byte of every x86 machine instruction is the ModR/M byte. A)True

B)False

14

To view all questions and flashcards with answers, click on the resource link above.

Chapter 13: High-Level Language Interface-- Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79890

Sample Questions

Q1) Name decoration is used by C++ because it supports the overloading of function names.

A)True B)False

Q2) The Visual C++ compiler contains command-line options for generating assembly language source code.

A)True B)False

Q3) The EVEN and ALIGN directives can be used in Visual C++ inline assembly code.

A)True B)False

Q4) In Visual C++,the PTR directive cannot be used in inline assembly code. A)True B)False

Q5) Optimizing C++ compilers rarely substitute registers in the place of variables when they generate assembly language source code.

A)True B)False

To view all questions and flashcards with answers, click on the resource link above. Page 15

Chapter 14: 16-Bit Ms-Dos Programming Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79889

Sample Questions

Q1) The device names for parallel printer port 1 are both PRN and LPT1.

A)True

B)False

Q2) The INT instruction uses a value in the BX register to locate an entry in the interrupt vector table.

A)True

B)False

Q3) There is no INT 21h function that lets you set a file's I/O pointer past the end of a file.

A)True

B)False

Q4) MS-DOS services are handled by INT 21h.

A)True

B)False

Q5) Video services are handled by INT 16h.

A)True

B)False

Q6) INT 21h,function 10h writes a string to standard output.

A)True

B)False

Page 16

To view all questions and flashcards with answers, click on the resource link above.

Chapter 15: Disk Fundamentals Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79888

Sample Questions

Q1) A hard disk partition can be divided into multiple volumes.

A)True

B)False

Q2) The MS-DOS file attribute byte does not include a hidden attribute.

A)True

B)False

Q3) Clusters are the basic unit of storage for directories and files in a FAT-type file system.

A)True

B)False

Q4) A disk containing primarily small files should use a small cluster size to make the most efficient use of space.

A)True

B)False

Q5) An extended partition can be divided into any number of logical partitions.

A)True

B)False

Q6) A track contains multiple sectors.

A)True

B)False

To view all questions and flashcards with answers, click on the resource link above. Page 17

Chapter 16: Bios-Level Programming Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79887

Sample Questions

Q1) INT 10h function 9 displays a character and attribute at the current cursor position.

A)True

B)False

Q2) In text mode,each character is assigned a separate attribute byte that determines its color.

A)True

B)False

Q3) Character colors use 4 bits for the foreground color,and 4 bits for the background color.Blinking is controlled by a 9^th bit that is not part of the attribute byte.

A)True

B)False

Q4) Keys stored in the keyboard typeahead buffer can only be retrieved by calling INT 16h.

A)True

B)False

Q5) The BIOS data area includes the keyboard typeahead buffer.

A)True

B)False

To view all questions and flashcards with answers, click on the resource link above. Page 18

Chapter 17: Expert Ms-Dos Programming Assessment

Available Study Resources on Quizplus for this Chatper

15 Verified Questions

15 Flashcards

Source URL: https://quizplus.com/quiz/79886

Sample Questions

Q1) The ASSUME directive permits the assembler to calculate the offsets of labels and variables.

A)True

B)False

Q2) The segment combine type tells the linker how to combine segments having the same name.

A)True

B)False

Q3) IA-32 systems offer two types of hardware input-output: memory-mapped,and port-based.

A)True

B)False

Q4) Only one code segment may be created in a single program module.

A)True

B)False

Q5) When an interrupt executes,an address in the Exception Process Table is used to locate the interrrupt handler.

A)True

B)False

To view all questions and flashcards with answers, click on the resource link above. Page 19