Suppose d = {“john”:40, “peter”:45}, what happens when we try to retrieve a value using the expression d[“susan”]? a) Since “susan” is not a value in the set, Python raises a KeyError exception b) It is executed fine and no exception is raised, and it returns None c) Since “susan” is not a key in the set, Python raises a KeyError exception d) Since “susan” is not a key in the set, Python raises a syntax error

Suppose d = {“john”:40, “peter”:45}, what happens when we try to retrieve a  value using the expression d[“susan”]?  a) Since “susan” is not a value in the set, Python raises a KeyError exception b) It is executed fine and no exception is raised, and it returns None c) Since “susan” is not a key in the set, Python raises a KeyError exception d) Since “susan” is not a key in the set, Python raises a syntax error
by

1 Answer

Answer :

c) Since “susan” is not a key in the set, Python raises a KeyError exception
by

Related questions

Suppose d = {“john”:40, “peter”:45}. To obtain the number of entries in dictionary which command do we use? a) d.size() b) len(d) c) size(d) d) d.len()

Description : Suppose d = {“john”:40, “peter”:45}. To obtain the number of entries in dictionary which command do we use? a) d.size() b) len(d) c) size(d) d) d.len()

Last Answer : b) len(d)

Suppose d = {“john”:40, “peter”:45}, to delete the entry for “john” what command do we use a) d.delete(“john”:40) b) d.delete(“john”) c) del d[“john”]. d) del d(“john”:40)

Description : Suppose d = {“john”:40, “peter”:45}, to delete the entry for “john” what command do we use a) d.delete(“john”:40) b) d.delete(“john”) c) del d[“john”]. d) del d(“john”:40)

Last Answer : c) del d[“john”].

What will be the output? d1 = {"john":40, "peter":45} Page No 40 d2 = {"john":466, "peter":45} d1 == d2 a) True b) False c) None d) Error

Description : What will be the output? d1 = {"john":40, "peter":45} Page No 40 d2 = {"john":466, "peter":45} d1 == d2 a) True b) False c) None d) Error

Last Answer : b) False

What will be the output? d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} d1 > d2 a) True b) False c) Error d) None

Description : What will be the output? d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} d1 > d2 a) True b) False c) Error d) None

Last Answer : c) Error

What will be the output? d = {"john":40, "peter":45} "john" in d a) True b) False c) None d) Error

Description : What will be the output? d = {"john":40, "peter":45} "john" in d a) True b) False c) None d) Error

Last Answer : a) True

What will be the output of the following Python code snippet? d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} d1 > d2 a) True b) False c) Error d) None

Description : What will be the output of the following Python code snippet? d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} d1 > d2 a) True b) False c) Error d) None

Last Answer : Answer: c Explanation: Arithmetic > operator cannot be used with dictionaries.

What will be the output of the following Python code snippet? d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} d1 == d2 a) True b) False c) None d) Error

Description : What will be the output of the following Python code snippet? d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} d1 == d2 a) True b) False c) None d) Error

Last Answer : Answer: b Explanation: If d2 was initialized as d2 = d1 the answer would be true.

What will be the output of the following Python code snippet? d = {"john":40, "peter":45} "john" in d a) True b) False c) None d) Error

Description : What will be the output of the following Python code snippet? d = {"john":40, "peter":45} "john" in d a) True b) False c) None d) Error

Last Answer : Answer: a Explanation: In can be used to check if the key is int dictionary.

What is the output of the following piece of code when executed in Python shell? >>> a=("Check")*3 >>> a a) (‘Check’,’Check’,’Check’) b) * Operator not valid for tuples c) (‘CheckCheckCheck’) d) Syntax erro

Description : What is the output of the following piece of code when executed in Python shell? >>> a=("Check")*3 >>> a a) (‘Check’,’Check’,’Check’) b) * Operator not valid for tuples c) (‘CheckCheckCheck’) d) Syntax erro

Last Answer : c) (‘CheckCheckCheck’)

Process of removing errors called a) Error Free b) Debug c) Syntax Error d) Exception

Description : Process of removing errors called a) Error Free b) Debug c) Syntax Error d) Exception

Last Answer : b) Debug

What will be the output? d = {"john":40, "peter":45} print(list(d.keys())) a) [“john”, “peter”]. b) [“john”:40, “peter”:45]. c) (“john”, “peter”) d) (“john”:40, “peter”:45)

Description : What will be the output? d = {"john":40, "peter":45} print(list(d.keys())) a) [“john”, “peter”]. b) [“john”:40, “peter”:45]. c) (“john”, “peter”) d) (“john”:40, “peter”:45)

Last Answer : a) [“john”, “peter”].

What is the output? d = {"john":40, "peter":45} d["john"] a) 40 b) 45 c) “john” d) “peter”

Description : What is the output? d = {"john":40, "peter":45} d["john"] a) 40 b) 45 c) “john” d) “peter”

Last Answer : a) 40

Read the code shown below carefully and pick out the keys? d = {"john":40, "peter":45} a) “john”, 40, 45, and “peter” b) “john” and “peter” c) 40 and 45 d) d = (40:”john”, 45:”peter”)

Description : Read the code shown below carefully and pick out the keys? d = {"john":40, "peter":45} a) “john”, 40, 45, and “peter” b) “john” and “peter” c) 40 and 45 d) d = (40:”john”, 45:”peter”)

Last Answer : b) “john” and “peter”

Which of the following statements create a dictionary? a) d = {} b) d = {“john”:40, “peter”:45} c) d = {40:”john”, 45:”peter”} d) All of the mentioned

Description : Which of the following statements create a dictionary? a) d = {} b) d = {“john”:40, “peter”:45} c) d = {40:”john”, 45:”peter”} d) All of the mentioned

Last Answer : d) All of the mentioned

What will be the output? d = {"john":40, "peter":45} d["john"] a) 40 b) 45 c) “john” d) “peter”

Description : What will be the output? d = {"john":40, "peter":45} d["john"] a) 40 b) 45 c) “john” d) “peter”

Last Answer : a) 40

What will be the output of the following Python code? d = {"john":40, "peter":45} d["john"] a) 40 b) 45 c) “john” d) “peter”

Description : What will be the output of the following Python code? d = {"john":40, "peter":45} d["john"] a) 40 b) 45 c) “john” d) “peter”

Last Answer : Answer: a Explanation: Execute in the shell to verify.

What will be the output of the following Python code snippet? d = {"john":40, "peter":45} a) “john”, 40, 45, and “peter” b) “john” and “peter” c) 40 and 45 d) d = (40:”john”, 45:”peter”)

Description : What will be the output of the following Python code snippet? d = {"john":40, "peter":45} a) “john”, 40, 45, and “peter” b) “john” and “peter” c) 40 and 45 d) d = (40:”john”, 45:”peter”)

Last Answer : Answer: b Explanation: Dictionaries appear in the form of keys and values.

Suppose that the number of instructions executed between page faults is directly proportional to the number of page frames allocated to a program. If the available memory is doubled, the mean interval between page faults is also doubled. Further, consider that a normal instruction takes one micro second, but if a page fault occurs, it takes 2001 micro seconds. If a program takes 60 sec to run, during which time it gets 15000 page faults, how long would it take to run if twice as much memory were available? (A) 60 sec (B) 30 sec (C) 45 sec (D) 10 sec

Description : Suppose that the number of instructions executed between page faults is directly proportional to the number of page frames allocated to a program. If the available memory is doubled, the mean interval between page faults is also ... memory were available? (A) 60 sec (B) 30 sec (C) 45 sec (D) 10 sec

Last Answer : Answer: C Explanation: T = Ninstr x 1µs + 15,000 x 2,000 µs = 60s Ninstr x 1µs = 60,000,000 µs - 30,000,000 µs = 30,000,000 µs Ninstr = 30,000,000 The number of instruction ... doesn't mean that the program runs twice as fast as on the first system. Here, the performance increase is of 25%.

Python Error : SystemError: error return without exception set -Web-Development

Description : Python Error : SystemError: error return without exception set -Web-Development

Last Answer : answer:

What will be the output of the following Python code? nums = set([1,1,2,3,3,3,4,4])print(len(nums)) a) 7 b) Error, invalid syntax for formation of set c) 4 d) 8

Description : What will be the output of the following Python code? nums = set([1,1,2,3,3,3,4,4])print(len(nums)) a) 7 b) Error, invalid syntax for formation of set c) 4 d) 8

Last Answer : Answer: c Explanation: A set doesn’t have duplicate items.

Suppose list1 is [4, 2, 2, 4, 5, 2, 1, 0], which of the following is correct syntax for slicing operation? a) print(list1[0]) b) print(list1[:2]) c) print(list1[:-2]) d) all of the mentioned

Description : Suppose list1 is [4, 2, 2, 4, 5, 2, 1, 0], which of the following is correct syntax for slicing operation? a) print(list1[0]) b) print(list1[:2]) c) print(list1[:-2]) d) all of the mentioned

Last Answer : d) all of the mentioned

What is the output of the following program ? (Assume that the appropriate pre-processor directives are included and there is no syntax error) main() { char S[ ] = "ABCDEFGH"; printf ("%C",* (& S[3])); printf ("%s", S+4); printf ("%u", S); /* Base address of S is 1000 */ } (A) ABCDEFGH1000 (B) CDEFGH1000 (C) DDEFGHH1000 (D) DEFGH1000

Description : What is the output of the following program ? (Assume that the appropriate pre-processor directives are included and there is no syntax error) main() { char S[ ] = "ABCDEFGH"; printf ("%C",* (& ... Base address of S is 1000 */ } (A) ABCDEFGH1000 (B) CDEFGH1000 (C) DDEFGHH1000 (D) DEFGH1000

Last Answer : (D) DEFGH1000

Which of the following statements create a dictionary? a) d = {} b) d = {“john”:40, “peter”:45} c) d = {40:”john”, 45:”peter”} d) All of the mentioned

Description : Which of the following statements create a dictionary? a) d = {} b) d = {“john”:40, “peter”:45} c) d = {40:”john”, 45:”peter”} d) All of the mentioned

Last Answer : A

What is the output when following statement is executed ? >>>print('new' 'line') a) Error b) Output equivalent to print ‘new\nline’ Page No 22 c) newline d) new line

Description : What is the output when following statement is executed ? >>>print('new' 'line') a) Error b) Output equivalent to print ‘new\nline’ Page No 22 c) newline d) new line

Last Answer : c) newline

Match the following mechanisms for interrupting the execution of a process and their uses. i) Interrupt a) Call to an operating system function ii) Trap b) Reaction to an asynchronous external event iii) Supervisor Call c) Handling of a error or an exception condition A) i-a, ii-b, iii-c B) i-c, ii-a, iii-b C) i-b, ii-c, iii-a D) i-a, ii-c, iii-b

Description : Match the following mechanisms for interrupting the execution of a process and their uses. i) Interrupt a) Call to an operating system function ii) Trap b) Reaction to an asynchronous external event iii) Supervisor Call c) Handling of a error ... -a, iii-b C) i-b, ii-c, iii-a D) i-a, ii-c, iii-b

Last Answer : C) i-b, ii-c, iii-a

What is the output of the following code? a={1:"A",2:"B",3:"C"} print(a.get(5,4)) a) Error, invalid syntax b) A c) 5 d) 4

Description : What is the output of the following code? a={1:"A",2:"B",3:"C"} print(a.get(5,4)) a) Error, invalid syntax b) A c) 5 d) 4

Last Answer : d) 4

What will be the output of the following segment of the program? main( ) { char *s = “hello world”; int i = 7; printf(“%, *s”, i, s); } (A) Syntax error (B) hello w (C) hello (D) o world

Description : What will be the output of the following segment of the program? main( ) { char *s = “hello world”; int i = 7; printf(“%, *s”, i, s); } (A) Syntax error (B) hello w (C) hello (D) o world

Last Answer : Answer: Marks given to all

If a={5,6,7}, what happens when a.add(5) is executed? a) a={5,5,6,7} b) a={5,6,7} c) Error as there is no add function for set data type d) Error as 5 already exists in the set

Description : If a={5,6,7}, what happens when a.add(5) is executed? a) a={5,5,6,7} b) a={5,6,7} c) Error as there is no add function for set data type d) Error as 5 already exists in the set

Last Answer : Answer: b Explanation: There exists add method for set data type. However 5 isn’t added again as set consists of only non-duplicate elements and 5 already exists in the set. Execute in python shell to verify.

What is the output when following code is executed ? >>>list1 = [11, 2, 23] >>>list2 = [11, 2, 2] >>>list1 < list2 is a) True b) False c) Error d) None

Description : What is the output when following code is executed ? >>>list1 = [11, 2, 23] >>>list2 = [11, 2, 2] >>>list1 < list2 is a) True b) False c) Error d) None

Last Answer : b) False

What is the output when following code is executed ? >>>names = ['Amir', 'Bear', 'Charlton', 'Daman'] >>>print(names[-1][-1]) a) A b) Daman c) Error d) n

Description : What is the output when following code is executed ? >>>names = ['Amir', 'Bear', 'Charlton', 'Daman'] >>>print(names[-1][-1]) a) A b) Daman c) Error d) n

Last Answer : b) Daman

What is the output when following statement is executed ? >>> print(‘x\97\x98’) a) Error b) 97 98 c) x\97 d) \x97\x98

Description : What is the output when following statement is executed ? >>> print(‘x\97\x98’) a) Error b) 97 98 c) x\97 d) \x97\x98

Last Answer : c) x\97

hat is the output when following code is executed ? >>>print r"\nhello" The output is a) a new line and hello b) \nhello c) the letter r and then hello d) error

Description : hat is the output when following code is executed ? >>>print r"\nhello" The output is a) a new line and hello b) \nhello c) the letter r and then hello d) error

Last Answer : d) error

..... is a set of Keywords, s symbols, and a system of rules for constructing statements by which humans can communicate the instructions to be executed by a computer... 1) A Computer Program 2) A Programming Language 3) An Assembler 4) Syntax

Description : ..... is a set of Keywords, s symbols, and a system of rules for constructing statements by which humans can communicate the instructions to be executed by a computer... 1) A Computer Program 2) A Programming Language 3) An Assembler 4) Syntax

Last Answer : 2) A Programming Language

The age of Discontinuity‘ (1969) has been authored by A. John Drydon B. Cyril Debydeen C. Peter F. Drucker D. None of these

Description : The age of Discontinuity‘ (1969) has been authored by A. John Drydon B. Cyril Debydeen C. Peter F. Drucker D. None of these

Last Answer : C. Peter F. Drucker

Suppose list1 is [2, 33, 222, 14, 25], What is list1[:-1] ? a) [2, 33, 222, 14]. b) Error c) 25 d) [25, 14, 222, 33, 2].

Description : Suppose list1 is [2, 33, 222, 14, 25], What is list1[:-1] ? a) [2, 33, 222, 14]. b) Error c) 25 d) [25, 14, 222, 33, 2].

Last Answer : a) [2, 33, 222, 14].

Suppose list1 is [2, 33, 222, 14, 25], What is list1[-1] ? a) Error b) None c) 25 d) 2

Description : Suppose list1 is [2, 33, 222, 14, 25], What is list1[-1] ? a) Error b) None c) 25 d) 2

Last Answer : c) 25

Suppose list1 is [1, 5, 9], what is sum(list1) ? a) 1 b) 9 c) 15 d) Error

Description : Suppose list1 is [1, 5, 9], what is sum(list1) ? a) 1 b) 9 c) 15 d) Error

Last Answer : c) 15

Suppose list Example is [‘h’,’e’,’l’,’l’,’o’], what is len(list Example)? a) 5 b) 4 c) None d) Error

Description : Suppose list Example is [‘h’,’e’,’l’,’l’,’o’], what is len(list Example)? a) 5 b) 4 c) None d) Error

Last Answer : a) 5

Suppose t = (1, 2, 4, 3), which of the following is incorrect? a) print(t[3]) b) t[3] = 45 c) print(max(t)) d) print(len(t))

Description : Suppose t = (1, 2, 4, 3), which of the following is incorrect? a) print(t[3]) b) t[3] = 45 c) print(max(t)) d) print(len(t))

Last Answer : b) t[3] = 45

Why did Peter Susan and Edmund believe that Lucy had discovered a new land?

Description : Why did Peter Susan and Edmund believe that Lucy had discovered a new land?

Last Answer : Need answer

The closed circulatory system is more efficient. Since blood circulates only inside blood vessels it can do it with more pressure reaching farther distances between the organs where hematosis happens and the peripheral tissues. In addition the circulatory speed also heightens making possible more oxygen supply to great consuming tissues, like the muscle tissues that then can perform faster movements. Animals with an open circulatory system (with the exception of insects that do gas exchange independently from the circulation) are generally slower and have a low metabolic rate.

Description : The closed circulatory system is more efficient. Since blood circulates only inside blood vessels it can do it with more pressure reaching farther distances between the organs where hematosis ... exchange independently from the circulation) are generally slower and have a low metabolic rate.

Last Answer : What is the difference between octopuses and mussels regarding their circulatory systems?

The Servlet Response interface enables a servlet to formulate a response for a client using the method ............... (A) void log(Exception e, String s) (B) void destroy() (C) int getServerPort() (D) void setContextType(String Type)

Description : The Servlet Response interface enables a servlet to formulate a response for a client using the method ............... (A) void log(Exception e, String s) (B) void destroy() (C) int getServerPort() (D) void setContextType(String Type)

Last Answer : (D) void setContextType(String Type)

What’s the C# syntax to catch any possible exception?

Description : What’s the C# syntax to catch any possible exception?

Last Answer : A catch block that catches the exception of type System.Exception. You can also omit the parameter data type in this case and just write catch {}.

What’s the C# syntax to catch any possible exception?

Description : What’s the C# syntax to catch any possible exception?

Last Answer : A catch block that catches the exception of type System.Exception. You can also omit the parameter data type in this case and just write catch {}.

Will the finally block get executed if an exception has not occurred?

Description : Will the finally block get executed if an exception has not occurred?

Last Answer : Yes.  

Will the finally block get executed if an exception has not occurred?

Description : Will the finally block get executed if an exception has not occurred?

Last Answer : Yes. 

The finally block is executed: a) Only when a checked exception is thrown b) Only when a unchecked exception is thrown c) Only when an exception is thrown d) Irrespective of whether an exception is thrown or not e) None of The Above

Description : The finally block is executed: a) Only when a checked exception is thrown b) Only when a unchecked exception is thrown c) Only when an exception is thrown d) Irrespective of whether an exception is thrown or not e) None of The Above

Last Answer : d) Irrespective of whether an exception is thrown or not

In C++, which system-provided function is called when no handler is provided to deal with an exception? (A) terminate() (B) unexpected() (C) abort() (D) kill()

Description : In C++, which system-provided function is called when no handler is provided to deal with an exception? (A) terminate() (B) unexpected() (C) abort() (D) kill()

Last Answer : Answer: A