CS 4402 Comparative Programming Languages Study
True/False: In imperative programming languages, the assignment statement is the only statement that does anything.
True
True/False: In syntactical analysis the top-down parsing approach is referred to LL analysis?
True
A variable of type byte will have what number of bits?
8
True/False: A bus with less bits has an advantage because it operates faster and can move more data.
False
True/False: All imperative programming languages support enumeration data types.
False
True/False: The type 2 hypervisor is designed to run directly on bare metal.
False
Which of the following image file formats was developed using a Little-Endian format?
GIF
Which of the following is a characteristic of a non-imperative programming language.
Is Referentially Transparent
Which of the following best describes a Type 1 hypervisor.
It runs on bare metal
Which of the following programming languages is an example of a programming language with strong type checking.
Java
What is the binary equivalent of decimal 25 in 2's complement?
00011001
Convert -32 into a 2's complement binary number:
11100000
Which option is the 2's complement of the following binary number: 00011100
11100100
Which of the following expressions can be evaluated as syntactically correct by the following grammar? E = N | E "+" E. N = "1" | "2" | "3" | "4" .
4 + 2 + 1
In the following example EBNF grammar, what does the symbol <expr> describe? <expr> := '-'? <digit>+ ('.' <digit>+)?<digit> := '0' | '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9'
A real number
Which of the following is an example of a imperative programming language.
Algol
Which of the following is NOT one of the attributes of a variable.
All of these choices are attributes of a variable (scope, lifetime, r-value, Name)
Which of the following is NOT a function supported by debuggers?
Assemble code
Professors John G. Kemeny and Thomas E. Kurtz of Dartmouth University developed which language?
BASIC
Which of the following is NOT an example of a dynamic typed programming language?
C++
Which of the following computer systems used a Little-Endian architecture.
DEC Alpha
Dynamic binding occurs _______: Select the one best answer.
During execution
Which of the following is NOT one of the steps or 'phases' of the compilation process.
Error Checking
In the following BNF example, the symboil <sentence> is considered to be a terminal symbol? <sentence> := <subject> <predicate> <subject> := 'John' | ' Mary' <predicate> := 'eats' | 'talks'
False
True/False: A computer architecture that stores program instructions on an external device such as a tape or drum and not in memory is consistent with the von Neumann architecture?
False
True/False: A negative number is represented in 2's complement by a leading 0 bit followed by the binary representation of the value.
False
True/False: A variable of type long will require 16 bits of memory.
False
True/False: An advantage of the array is that is ensures that all values are always in sorted order.
False
True/False: An advantage to a weak typed programming language is that it eliminates type issues that can cause hard to find bugs in a program.
False
True/False: An array is comprised of a collection of elementary data types which can all be of different types.
False
True/False: Arrays are flexible data structures as the length of the array can be dynamically changed at any time.
False
True/False: Arrays are limited to having either one or two dimensions.
False
True/False: Assembler Language was developed before Machine Language.
False
True/False: In syntactical analysis the bottom-up parsing approach is referred to LL analysis?
False
True/False: Integer numbers include the set of all positive whole numbers and zero.
False
True/False: Java is an example of a functional programming language.
False
True/False: Java's unique design has achieved 100% portability.
False
True/False: One of the features of imperative programming languages is that the programmer specifies results and input but lets the compiler determine the computation steps necessary to solve the computing problem.
False
True/False: Real time, every time is a way of describing the role of a compiler as opposed to an interpreter.
False
True/False: The EBNF (or Extended BNF) approach to grammar specification was a rewrite of the original BNF developed by John Backus designed to 'normalize' grammar specification?
False
True/False: The Turing-Church Thesis states that any computing problem that cannot be solved with a Turning machine can be solved with Lambda Calculus.
False
True/False: The advantage of fixed-point numbers is that the accuracy, that is the absolute error, is variable.
False
True/False: The benefit of the C language was that it was high level and ensured that the user had no access to the lower level capabilities of assembly language eliminating the potential for many programming bugs.
False
True/False: The following operation in binary will generate the 2's complement binary equivalent of 128? 01111111 + 00000001
False
True/False: The high order byte refers to a byte with a value greater than 256.
False
True/False: The java compiler generates machine instructions for the target computing using a compiler program known as the JRE.
False
True/False: The loader compiles a program and performs type checking on it.
False
True/False: The model of computing introduced by Alonzo Church was known as the Church Thesis.
False
True/False: The revolutionary innovation that von Neumann introduced in his computer architecture was the use of registers within the Arithmetic Logic Unit.
False
True/False: The type char is always 8 bits in length.
False
True/False: Turing's concept of the turing machine was based upon the concepts and rules of mathematical functions.
False
True/False: Type checking is a part of the compilation process that occurs in step 2 syntax analysis.
False
The term compiler was coined in the 1950's by which of the following?
Grace Hooper
Which of the following is NOT a component of the von Neuman architecture?
Graphics Adapter
The C language was developed at Bell Laboratories by Dennis Ritchie during:
In the early 1970's along with Unix
The Fortran language was developed in 1957 by a team led by the following:
John Backus
Pascal was developed by which of the following:
Niklaus Wirth
Which of the following is an example of a dynamic typed programming language?
Perl
Which of the following is NOT a feature or characteristic of imperative programming languages.
Programming specifies the result not the steps
What feature of the von Neumann architecture was unique at the time and is an element of virtually every modern computer today?
Programs and data are stored in memory to facilitate general purpose computing.
Which of the following is NOT an example of an imperative programming language?
Prolog
The following are expressed in what format: 123. 45x10^3 1.2345x10^-8 0.00012345x10^7 12345000.0x10^4
Scientific Notation
The step in the compilation process where EBNF or BNF are used to determine if the structure of programming language statements are valid is called.
Syntactical analysis
The lexical analysis phase of the compilation process is also known as:
Tokenizing
Programming languages offer abstraction from the details of the computer hardware. This abstraction resulted in less programming effort but also some loss of 'detail' that could potentially result in less efficient code?
True
True/False: A compiler is a program that translates one language to another.
True
True/False: According to EBNF the | character means 'or'.
True
True/False: Algol has influenced programming language design more than any other single programming language?
True
True/False: An advantage to using an unsigned integer is that a larger positive number can be stored than can be stored with a signed integer.
True
True/False: An enumeration data type is an abstraction mechanism that allows labels such on/off or high, medium, and low to be associated with simple data types.
True
True/False: Big Endian architectures store the most significant byte first (which is the lowest memory address in the range) in memory.
True
True/False: Decimal numbers represented directly by assigning four bits to each decimal is callled binary-coded decimal (BCD).
True
True/False: In 'C', the char is essentially a small integer and supports the ability to readily convert between char and integer.
True
True/False: In a Turing machine the only operations that are possible on the ribbon are the read and write of one bit.
True
True/False: In a dynamic typed language the programmer is not required to declare and initialize variable before its use.
True
True/False: In imperative programming languages assignment is the core operation that is performed.
True
True/False: In many programming languages such as Java and 'C' the evaluation of an expression that employs operators such as greater than, less than, and, or and not (employing the proper syntax) returns a type of boolean.
True
True/False: In the von Neumann architecture, the bus describes the connections between the components in the architecture that is used to move data between them.
True
True/False: Lexical analysis is the step in the compilation process where tokens are extracted from the programming language statements.
True
True/False: Perl is an example of a static typed programming language.
True
True/False: The Assembler language was an early step towards abstraction that allowed programmers to use symbols for machine instructions and not binary numbers?
True
True/False: The IBM model of virtualization evolved from mainframe technology and was based upon the mapping of instructions from the virtual machine to physical machine.
True
True/False: The Unix virtual machine model implements virtualization through the use of process shells.
True
True/False: The design of the Java Virtual Machine is primarily intended to enhance the portability of Java applications.
True
True/False: The development of the C language is associated with the development of the Unix operating system?
True
True/False: The front end of a compiler is language-dependent and the back-end is computer dependent.
True
True/False: The string type is essentially implemented as an array of characters.
True
True/False: They key limitation of ASCII was that it could only represent 255 characters ?
True
True/False: Type checking will validate, strongly typed programming languages, that the type of an expression is consistent with the type of a target variable.
True
True/False: in Perl, the pragma 'strict' simulates static typing.
True
True/False: non-imperative languages are referentially transparent which means that a particular state is not required for successful and consistent computation.
True
The Cobol language was developed primarily for which of the following:
business data processing
Which of the following is NOT a component required to express a floating point number in binary using scientific notation.
fixed-point
Specific data elements in an array are accessed using an:
index
Which of the following cannot be dynamically bound:
language reserved keyword
The extensions to BNF were designed to provide a shorthand to simplify the grammar. The * symbol was one such extension used in EBNF and indicated:
something can be repeated any number of times (or be skipped altogether)
Consider the following grammar, which of the following is a non-terminal symbol? statement: whileStatement | ifStatement | '{' statementSequence '}' whileStatement: 'while' '(' expression ')' statement ifStatement: 'if' '(' expression ')' statement statementSequence: | statement ';' statementSequence expression:
statement
Which of the following is NOT an elementary data type.
string
The RECORD type is implemented in different ways in programming languages. Which option best describes the record implementation in 'C'.
struct
Consider the following grammar, which of the following is a terminal statement: whileStatement | ifStatement | '{' statementSequence '}' whileStatement: 'while' '(' expression ')' statement ifStatement: 'if' '(' expression ')' statement statementSequence: | statement ';' statementSequence expression:
while
