CSE 205 FINAL EXAM 2026 EXAM
PREPARATION PACK KEY PROGRAMMING
CONCEPTS AND SAMPLE QUESTIONS WITH
EXPLANATIONS
◉ A let-form in Scheme defines a set of Answer: local names.
◉ A let-form in Scheme is equivalent (in giving names to values) to
Answer: an unnamed/lambda procedure.
◉ Given the Scheme code, answer the following questions.
((lambda (x)
((lambda (x y)
(+ x y))
4 (* 6 x)))
3)
(1) The value to be passed to the parameter y is 18 .
(2) The final output of the piece of code is 22 . Answer: (1) 18
(2) 22
,◉ Given the Scheme code, answer the following two questions.
((lambda (x)
((lambda (x y)
(+ x y))
5 (* 7 x)))
3)
(1) The value to be passed to the parameter y is 21 .
(2) The final output of the piece of code is 26 . Answer: (1) 21
(2) 26
◉ Given this Scheme procedure:
(define foo (lambda (x)
(if (= x 0)
1
(* x (foo (- x 1))) )))
What does this procedure do? Answer: compute x!
◉ Which of the following forms using a quote will return an error
when run? Answer: ('+ 2 3)
(define a a)
, ◉ Which of the followings is a Scheme pair? Select all that apply.
Answer: '(x . y)
'(x . x)
'(() ())
◉ What is the correct method for constructing a pair in Scheme?
Answer: (cons 1 2)
◉ What is the return value of the code below? (min is a procedure
that returns the minimum of two values.)
(define lst '(3 5 2 9))
((min (car lst) (cadr lst))) Answer: error message
◉ What statement is accurate and correct for Scheme lists and
pairs? Answer: There exists a list that is not a pair.
◉ Which of the following is equivalent to the expression below?
(car (cdr '(1 2 3 4 5)) Answer: (cadr '(1 2 3 4 5))
◉ Given this expression, what is the expected result?
(car (cdr '(1 2 3 4 5)) Answer: 2
PREPARATION PACK KEY PROGRAMMING
CONCEPTS AND SAMPLE QUESTIONS WITH
EXPLANATIONS
◉ A let-form in Scheme defines a set of Answer: local names.
◉ A let-form in Scheme is equivalent (in giving names to values) to
Answer: an unnamed/lambda procedure.
◉ Given the Scheme code, answer the following questions.
((lambda (x)
((lambda (x y)
(+ x y))
4 (* 6 x)))
3)
(1) The value to be passed to the parameter y is 18 .
(2) The final output of the piece of code is 22 . Answer: (1) 18
(2) 22
,◉ Given the Scheme code, answer the following two questions.
((lambda (x)
((lambda (x y)
(+ x y))
5 (* 7 x)))
3)
(1) The value to be passed to the parameter y is 21 .
(2) The final output of the piece of code is 26 . Answer: (1) 21
(2) 26
◉ Given this Scheme procedure:
(define foo (lambda (x)
(if (= x 0)
1
(* x (foo (- x 1))) )))
What does this procedure do? Answer: compute x!
◉ Which of the following forms using a quote will return an error
when run? Answer: ('+ 2 3)
(define a a)
, ◉ Which of the followings is a Scheme pair? Select all that apply.
Answer: '(x . y)
'(x . x)
'(() ())
◉ What is the correct method for constructing a pair in Scheme?
Answer: (cons 1 2)
◉ What is the return value of the code below? (min is a procedure
that returns the minimum of two values.)
(define lst '(3 5 2 9))
((min (car lst) (cadr lst))) Answer: error message
◉ What statement is accurate and correct for Scheme lists and
pairs? Answer: There exists a list that is not a pair.
◉ Which of the following is equivalent to the expression below?
(car (cdr '(1 2 3 4 5)) Answer: (cadr '(1 2 3 4 5))
◉ Given this expression, what is the expected result?
(car (cdr '(1 2 3 4 5)) Answer: 2
