RECF Programming Practice Test

These questions are part of the practice quiz. Start practicing

• When doing a Google search, to exclude a word in an article the word should be prefaced with what symbol?
• Which of the following is a valid hexadecimal form for 15?
• Which term describes a data type that stores a single character such as a letter or symbol?
• Which term is responsible for translating domain names to IP addresses?
• What are the names of the fields in the Point structure?
• What is the Central Processing Unit (CPU)?
• Which of the following shows a correct prototype and a definition for adding two integers?
• Which term describes a wireless networking technology for local area networks?
• A private network that links computers within a company is called what?
• Which of the following is a valid function prototype for a function named add that takes two int parameters and returns int?
• To exclude a word in a Google search, prefix it with what symbol?
• Which term refers to a network service that automatically assigns IP addresses and other TCP/IP configuration information?
• What does the const qualifier do to a variable?
• Which binary string represents decimal 15?
• ROM stands for Read Only Memory. Which description best matches ROM?
• What is the return type of a function named bitCount that counts bits and returns the count as an unsigned integer?
• What is the result of integer division 7 / 3 in C?
• What is the function of a Graphics Processing Unit (GPU)?
• Which of the following is not equivalent to the others?
• How do you reference the left motor inside the motor array?
• What is the typical motor power range in RobotC for VEX?
• How do you access the 'x' member of a Point variable named p?
• Which of these is not part of a central processing unit (CPU)?
• How do you check if two arrays are equal element-wise?
• Which statement correctly defines an integer?
• What is an advantage of using floating-point numbers?
• Which function would you use to print lines for debugging?
• Which statement describes the effect of passing by value versus passing by reference on the caller's data?
• If you declare int data[10], what is the index of the last element?
• Which term describes a high-level, language-agnostic description of an algorithm's steps?
• What is the primary role of a CPU in a computer system?
• Which loop snippet correctly copies n elements from src to dest?
• I/O stands for what in computing?
• Which operator would you use to check if two values are not equal?
• Which of the following best characterizes a worm?
• What does CRT stand for in computer hardware?
• Which symbol is used to assign a value to a variable?
• Which term is associated with older CRT displays?
• Which of the following is not typically considered part of a CPU?
• In the context of bitCount, what is the return type?
• Which base uses digits 0-7 exclusively?
• Which of the following is an input device?
• Which statement correctly describes a two-dimensional array in C?
• What return type should a function have if it does not return a value?
• What is the primary role of HTTP?
• In a switch statement, what is the purpose of the default case?
• Which statement about RAM is true?
• What is the binary representation of decimal 15?
• When https appears in a web address bar, it means?
• Which statement best describes ROM?
• What is the CPU primarily responsible for?
• What is the hex representation of decimal 32?
• Spam is best described as?
• What punctuation is used to start and end a code block in C?
• Which of the following lists the four compass directions defined in the enumeration?
• Which term connects multiple network segments and can forward traffic between them?
• How do you declare a boolean variable named 'done'?
• Which of the following best describes a binary numeral system?
• The expression value & 1 masks all bits except for the least significant bit. True or False?
• What is a typical use of the abs function?
• In C-based languages, does arithmetic operator precedence outrank assignment?
• What is the purpose of pre_auton() in the competition template?
• How can you safely compare a pointer to detect a null reference?
• Which of these computer language keywords is not used for looping?
• What is the hex representation of binary 1011 0010 1111 0000?
• FPU stands for?
• What must a flip-flop have in digital circuits?
• How do you set a motor named 'leftMotor' to move at full forward speed?
• IP stands for what in networking?
• How do you create a simple macro-like substitution in C?
• In a bitCount function, which statement best describes the returned count?
• The statement is not equivalent to count = count + 2. True or False?
• Which binary number equals decimal 9?
• Which description best defines a macro in C?
• Which of the following is not an input device?
• Which term refers to malicious software designed to cause harm and operate covertly?
• Which of the following is not a programming language?
• Refer to function bitCount(). Which statement about the returned value 'count' is true?
• Which of the following best defines malware?
• What does the expression value & 1 yield?
• Which of the following is a valid function prototype for adding two integers?
• Which for loop correctly runs from i = 0 to i < n?
• Which statement best describes Moore's Law's relevance to future hardware trends?
• How would you ensure a strict type conversion from float to int?
• How would you describe recursion in programming?
• What does I/O stand for in computing?
• In a do-while loop, what is the minimum number of times the loop body executes?
• What does the abbreviation IP stand for?
• Which of the following is a storage device listed in the material?
• How do you access the 7th element of an array named data?
• Which of these is not an input device?
• Which pair typically composes a floating-point number in binary systems?
• What is the 4-bit binary representation of decimal 15?
• What does the modulo operator (%) do?
• What does double precision mean?
• Compute 10100010 OR 01011101.
• Which is the hex representation of binary '1011 0101 1001 0011'?
• What is the main difference between autonomous and user-controlled phases?
• Which of the following is typically non-volatile storage?
• What is the difference between passing by value and passing by reference?
• Which statement best describes IP (Internet Protocol)?
• When does an infinite loop occur?
• Compute 0110 + 0011 in 4-bit binary.
• What is overflow in floating-point arithmetic?
• Which item would go in ROM according to the material?
• 0100 represents which decimal value when interpreted as a 4-bit binary number?
• Which keyword is not used for looping?
• Which term is an electronic device that receives data, processes data, stores data, and produces a result?
• Which value represents full forward motor speed in the given RobotC range?
• Which option best describes a character in computing?
• Which statement has the same effect as 'count = count + 2'?
• When https appears in a web address bar, what does it indicate?
• Which term best describes a network security device that blocks unauthorized access while allowing outward communication?
• In the function named bitCount that returns an unsigned integer, what is the name of the input variable?
• If a function processes a two-digit decimal input by repeatedly dividing by 2 in a while loop, how many iterations will occur at minimum?
• If a function uses the ternary operator to compute the max, what would m be if a=4 and b=7?
• Which is NOT a digital storage element?
• How do you start a concurrent task named 'driveTask'?
• In programming, which statement is true about a variable named count?
• Which is a simple switch-case that prints a message for 0, 1, or default?
• Intranet is defined as
• How do you stop a running task named 'driveTask'?
• Normalization in floating-point representation refers to:
• What is the name of the type defined by the enumeration containing NORTH, EAST, SOUTH, WEST?
• In the for loop syntax for (int i = 0; i < n; i++), what does i < n specify?
• What does short-circuit evaluation mean for logical operators?
• What is a common consequence of finite precision in floating-point arithmetic?
• Which declaration demonstrates the proper typedef alias for a Point structure?
• Which term forwards data packets between computer networks?
• What happens to RAM when the computer is turned off?
• How would you declare and initialize a two-dimensional array of 3x3 with zeros?
• Which statement best defines a computer virus?
• Which statement about HTTPS connections is NOT a valid characteristic?
• Which term denotes a company that provides customers access to the Internet?
• Which expression returns the length of a C-style string stored in a character array named name?
• Which is the hex representation of decimal 15?
• The operation value = value / 2 is equivalent to value = value >> 1. True or False?
• What is the hexadecimal representation of decimal 15?
• How do you prematurely exit a loop?
• Which of these is a common programming language?
• Which description best defines the Internet as given in the material?
• What is a string in programming?
• Which statement best describes floating-point arithmetic?
• Which statement best captures Moore's Law implication?
• Which operator checks for equality between two values?
• Which of the following is not a common programming language?
• Which term provides internet access to customers?
• Which is a correct function prototype before main for a function that returns int?
• How do you declare an enum for four compass directions?
• Which practice improves code readability?
• What is the purpose of a function prototype?
• Which device is not an input device?
• Denial of service describes which scenario?
• Which statement is true about floating-point precision?
• Which function pauses the program for a specified number of milliseconds?
• Which term describes the global system of networks that uses TCP/IP protocols to transmit data?
• Which statement best describes the Floating Point Unit (FPU) within a CPU?
• Which loop continues until a boolean flag becomes true?
• What is the effect of 'int mat[3][3] = {0};' in C?
• Which term refers to the machines, wiring, and other physical components of a computer system?
• Which operator performs a logical AND operation?
• Which description matches a worm?
• Which term is the Internet's system for converting alphabetic names into numeric IP addresses?
• Which acronym stands for Central Processing Unit?
• Which statement about a nibble is true?
• How do you declare a function that takes a pointer to an int and returns void?
• In the expression a % b, which part represents the divisor?
• Which of these is not a valid octal literal?
• What is the effect of the static keyword for a local variable inside a function?
• How many hexadecimal digits are required to represent the binary string '1011 0101 1001 0011'?
• Which of the following is a correct function definition for adding two integers?
• Which term provides wireless local area networking using radio signals?
• What is the maximum decimal value for an unsigned 8-bit binary number?
• Which of the following is a runtime error category?
• Which option reflects a commonly cited hardware scalability challenge affecting Moore's Law?
• Which four-bit binary sequence represents decimal 15?
• Which term is a computer or program that manages access to a centralized resource or service in a network?
• Port 443 is commonly used by which protocol?
• Which term is a network device that connects network segments?
• Which statement about integer division in C is true?
• What does the acronym CPU stand for?
• Which binary representation equals decimal 4?
• In a function named bitCount that returns an unsigned integer, what is the name of the input variable?
• Which statement about IP is true according to the material?
• If a variable named 'count' is initialized to 0, which statement is true about its initial value?
• Which term refers to routing data packets across networks in a connectionless manner?
• Which is the binary representation of decimal 4?
• Which of these is not part of a central processing unit (CPU)?
• How do you read a sensor value from a sensor named 'sonar'?
• How do you declare a one-dimensional array of 10 integers in C?
• Which statement has the same effect as 'value = value >> 1'?
• Which of the following is a common digital storage element?
• What is the decimal value of the binary number 010101001?
• Which term describes an elastic leasing of pooled computer resources over the internet?
• What is the decimal sum of 109 and 60?
• What is the hex representation of decimal 32?
• Which of the following is NOT a digital storage element?
• What does I/O stand for?
• What is a common practice to ensure readability in code?
• Which code snippet increments the integer value pointed to by p, without changing the pointer itself?
• Where do RAM modules reside in a typical computer?
• HTTPS differs from HTTP because it
• Which of these is not an input device?
• Which data type would you use to store a whole number that can be negative, such as encoder counts?
• Which device is used to produce output from a computer?
• What punctuation is used to start and end a code block in C?
• Which loop guarantees at least one execution?
• In floating-point arithmetic, what does underflow refer to?
• Which base is commonly used in binary floating-point representations?
• Dividing an unsigned integer by 2 yields the same result as a right shift by one bit. True or False?
• Which term serves as a centralized resource or service accessible over a network?
• Which protocol is used for transmitting web pages over the Internet?
• Which is the hex representation of binary 1011 0101 1001 0011?
• In a floating-point system, what does the exponent do?
• Which prefix is commonly used to denote hexadecimal literals in many programming languages?
• Which operator performs a logical right shift by one bit on an unsigned integer?
• CRT stands for?
• What is the effect of 'break' inside a loop?
• Firewall is defined as?
• If the function is called with a 2 digit decimal number, how many times will the while loop execute (maximum) if the loop halves the value each iteration until zero?
• What is the decimal value of hexadecimal 0F?
• What does the acronym FPU stand for?
• How do you skip to the next iteration in a loop?
• How do you declare a struct with two integer fields 'x' and 'y' and create a typedef alias 'Point'?
• HTTP stands for what?
• What is the sum of binary numbers 01101101 and 00111100?
• Which 8-bit binary sequence represents decimal 32?
• Which statement correctly describes the Central Processing Unit?
• Which example would go in RAM according to the material?
• A nibble has how many bits?
• Which function increments the integer value pointed to by p?
• What is the correct form of the ternary conditional operator?
• A nibble has how many bits?
• Which of these is not a common programming language?
• If a function returns an unsigned integer, what kind of values does it produce?
• Which of the following is not a common programming language?
• Which mechanism enables the secure version HTTPS to protect traffic?