Computer Trivia Questions for Students

Which of the following best describes the primary way in which a distributed denial-ofservice (D D o S) attack differs from a denial-ofservice (D o S) attack?

• AThe goal of the attack
• BThe number of computers launching the attack
• CThe time period in which the attack occurs
• DThe number of computers being attacked

What is the value of this python expression: 1 + 3 % 3?

• A1
• B0
• C3
• D4

A sorted list of numbers contains 500 elements. Which of the following is closest to the maximum number of list elements that will be examined when performing a binary search for a value in the list?

• A250
• B500
• C50
• D10

Which is the smallest asymptotically?

• AO(n^2)
• BO(log n)
• CO(n)
• DO(1)

Let l = [1,2,3,4]. What is sum(l) in Python3?

• A8
• B1
• C10
• D4

Consider the following code segment, which uses the variables r, s, and t. r ← 1 s ← 2 t ← 3 r ← s s ← t DISPLAY (r) DISPLAY (s) What is displayed as a result of running the code segment?

• A1 2
• B1 1
• C2 3
• D3 2

The color of a pixel can be represented using the RGB (Red, Green, Blue) color model, which stores values for red, green, and blue, each ranging from 0 to 255. How many bits (binary digits) would be needed to represent a color in the RGB model?

• A24
• B8
• C16
• D32

Which of the following best describes a Web server?

• AA computer system that determines the shortest path between two computers over the Internet
• BA computer system that delivers Web pages to clients
• CA computer system that translates domain names to IP addresses
• DA computer system running software that provides a user-friendly interface for creating Web pages

A large Java program was tested extensively, and no errors were found. What can be concluded?

• AEvery method in the program may safely be used in other programs.
• BAll of the preconditions in the program are correct.
• CAll of the postconditions in the program are correct.
• DThe program may have bugs.

A sorted list of 120 integers is to be searched to determine whether the value 100 is in the list. Assuming that the most efficient searching algorithm is used, what is the maximum number of elements that must be examined?

• A8
• B20
• C7
• D100

What is the value of this python expression: 4 + 3 % 2?

• A1
• B4
• C6
• D5

The code fragment below is intended to display "odd" if the positive number num is odd. IF (<MISSING CONDITION>) DISPLAY "odd" Which of the following can be used to replace <MISSING CONDITION> so that the code fragment will work as intended?

• A(num MOD 2 ) = 0
• B(num MOD 1) = 1
• C(num MOD 2) = 1
• D(num MOD 1) = 0

Consider the following list. - Assembly language - Block-based programming language - Logic gate - Machine language Which of the following arranges the list in order from highest level of abstraction to lowest level of abstraction?

• ABlock-based programming language, assembly language, machine language, logic gate
• BMachine language, block-based programming language, assembly language, logic gate
• CBlock-based programming language, machine language, logic gate, assembly language
• DBlock-based programming language, machine language, assembly language, logic gate

Let l = [1,2,2,3,4]. In Python3, what is a possible output of set(l)?

• A{1,2,2,3,4}
• B{1,2,3,4}
• C{1}
• D{4,3,2,2,1}

Consider the following segment of code. String word = "conflagration"; int x = word.indexOf("flag"); String s = word.substring(0, x); What will be the result of executing the above segment?

• AString s will contain "flag".
• BString s will contain "con".
• CString s will contain "conf".
• DString s will be the empty string.

Which of the following is the hexadecimal representation of the decimal number 231_{10} ?

• AF4_{16}
• BE7_{16}
• C17_{16}
• DE4_{16}

A computer program uses 3 bits to represent integers. When the program adds the decimal (base 10) numbers 5 and 3, the result is 0. Which of the following is the best explanation for the result?

• AThe result was approximated by a floating-point representation.
• BAn overflow error occurred.
• CThe result was affected by lossy data compression.
• DA round-off error occurred.

In Python 3, what is the output of print tuple[0] if tuple = ( 'abcd', 786 , 2.23, 'john', 70.2 )?

• A( 'abcd', 786 , 2.23, 'john', 70.2 )
• BError
• Cabcd
• DNone of the above.

What is the output of 4*1**4 in python?

• A1
• B16
• C4
• D256

Which of the following is an example of the use of a device on the Internet of Things (IoT) ?

• AA refrigerator orders milk from an online delivery service when the milk in the refrigerator is almost gone.
• BA hiker uses a G P S watch to keep track of her position.
• CA car alerts a driver that it is about to hit an object.
• DA runner uses a watch with optical sensors to monitor his heart rate.

In Python 3, which of the following function removes all leading and trailing whitespace in string?

• Areplace(old, new [, max])
• Btitle()
• Cstrip([chars])
• Dswapcase()

Which of the following spreadsheet functions would be most useful for detecting improbably high or low values that have become part of a data set as a result of data entry errors?

• AA function that rounds a numeric value
• BA function that averages numeric values in a column or row
• CA function that sorts values in a column or row
• DA function that counts the values in a column or row

In Python 3, what is the output of print list[1:3] if list = [ 'abcd', 786 , 2.23, 'john', 70.2 ]?

• A[ 'abcd', 786 , 2.23, 'john', 70.2 ]
• Babcd
• C[786, 2.23]
• DNone of the above.

Consider the code segment below. Line 1: IF (a = 0) Line 2: { Line 3: b ← a + 10 Line 4: } Line 5: ELSE Line 6: { Line 7: b ← a + 2O Line 8: } Which of the following changes will NOT affect the results when the code segment is executed?

• AChanging line 3 to b ← 10
• BChanging line 7 to a ← b + 10
• CChanging line 7 to b ← 20
• DChanging line 3 to a ← b + 10

In Python 3, let r = lambda q: q * 2. What is r(3)?

• A6
• B1
• C3
• D2

Which pillar of cybersecurity is compromised when someone logs into a system using a stolen login and password?

• ANonrepudiation
• BIntegrity
• CConfidentiality
• DAuthentication

Which of the following activities poses the greatest personal cybersecurity risk?

• APaying a bill using a secure electronic payment system
• BMaking a purchase at an online store that uses public key encryption to transmit credit card information
• CReserving a hotel room by e~mailing a credit card number to a hotel
• DWithdrawing money from a bank account using an automated teller machine (ATM)

Which of the following has the greatest potential for compromising a user's personal privacy?

• AThe user's e-mail address
• BA group of cookies stored by the user's Web browser
• CThe user's public key used for encryption
• DThe Internet Protocol (IP) address of the user's computer

In Python 3, which of the following function checks in a string that all characters are in uppercase?

• Ajoin(seq)
• Blen(string)
• Cljust(width[, fillchar])
• Disupper()

In Python 3, b = [11,13,15,17,19,21]; print(b[::2]) outputs what?

• A[11,15,19]
• B[13,17,21]
• C[19,21]
• D[11,15]

A large list of numbers is to be sorted into ascending order. Assuming that a "data movement" is a swap or reassignment of an element, which of the following is a true statement?

• AIf the array is initially sorted in descending order, then insertion sort will be more efficient than selection sort.
• BThe number of comparisons for insertion sort is independent of the initial arrangement of elements.
• CThe number of data movements in selection sort depends on the initial arrangement of elements.
• DThe number of comparisons for selection sort is independent of the initial arrangement of elements.

This question is based on the following declarations: String strA = "CARROT", strB = "Carrot", strC = "car"; Given that all uppercase letters precede all lowercase letters when considering alphabetical order, which is true?

• A!(strA.compareTo(strB) == 0) && strB.compareTo(strA) < 0
• BstrB.compareTo(strC) < 0 && strB.compareTo(strA) > 0
• CstrA.compareTo(strB) < 0 && strB.compareTo(strC) > 0
• DstrC.compareTo(strB) < 0 && strB.compareTo(strA) < 0

In Python 3, which of the following function convert a string to an int in python?

• Astr(x)
• Blong(x [,base] )
• Cint(x [,base])
• Dfloat(x)

In Python 3, which of the following function sets the integer starting value used in generating random numbers?

• Arandrange ([start,] stop [,step])
• Bchoice(seq)
• Crandom()
• Dseed([x])

In Python 3, what is the following function returns item from the list with max value?

• Acmp(list)
• Bmin(list)
• Cmax(list)
• Dlen(list)

Let l = [1,2,3,4]. What is max(l) in Python3?

• A1
• B2
• C4
• D3

Which of the following programs is most likely to benefit from the use of a heuristic?

• AA program that encrypts a folder of digital files
• BA program that calculates a student's grade based on the student's quiz and homework scores
• CA program that sorts a list of numbers in order from least to greatest
• DA program that finds the shortest driving route between two locations on a map

Which is a valid expression in Python 3.5?

• A"ab".sort()
• Bsorted('ab')
• C1/0
• Dsort('ab')

Let x = 1. What is x << 3 in Python 3?

• A3
• B8
• C1
• D16

What is the output of the statement "a" + "ab" in Python 3?

• Aaab
• Bab
• CError
• Da ab

Both online newspapers and social media sites are used to distribute information on the Internet. Which of the following best describes an advantage that online newspapers have over social media sites?

• AThe ability to provide credibility to the information distributed
• BThe ability to provide media-rich content for low cost
• CThe ability to provide information that is widely accessible
• DThe ability to distribute information instantaneously

Let x = 8. What is x>>1 in Python 3?

• A3
• B4
• C2
• D8

In Python 3, what is the output of ['Hi!'] * 4?

• A['Hi!', 'Hi!', 'Hi!', 'Hi!']
• BNone of the above.
• C['Hi!'] * 4
• DError

Which types of functions grow the slowest?

• AO(log N)
• BO(N)
• CO(log log N)
• DO(log e^N)

Which of the following is correct about Python?

• AIt can be easily integrated with C, C++, COM, ActiveX, CORBA, and Java.
• BBoth of the above.
• CIt supports automatic garbage collection.
• DNone of the above.

Let l = [1,2,3,4]. What is min(l) in Python3?

• A1
• B2
• C3
• D4

Consider the following numbers. ° Binary 1100 ° Decimal 11 ° Hexadecimal D Which of the following lists the numbers in order from least to greatest?

• ADecimal 11, Hexadecimal D, Binary 1100
• BDecimal 11, Binary 1100, Hexadecimal D
• CBinary 1100, Decimal 11, Hexadecimal D
• DHexadecimal D, Decimal 11, Binary 1100

Which of the following best explains what happens when a new device is connected to the Internet?

• AA device driver is assigned to the device.
• BA packet number is assigned to the device.
• CA Web site is assigned to the device.
• DAn Internet Protocol (IP) address is assigned to the device.

Of the following potential benefits, which is LEAST likely to be provided by the upgraded system?

• AThe company will be able to provide a human representative for any incoming call.
• BCustomers will be unable to mistakenly select the incorrect department for their particular issue.
• CHuman representatives will not be needed to respond to some inquiries.
• DCustomers are likely to spend less time listening to information not relevant to their issue.

Which is the largest asymptotically?

• AO(log n)
• BO(n^2)
• CO(1)
• DO(n)