In software testing, how the error, fault and failure are related to each other? (A) Error leads to failure but fault is not related to error and failure (B) Fault leads to failure but error is not related to fault and failure (C) Error leads to fault and fault leads to failure (D) Fault leads to error and error leads to failure

In software testing, how the error, fault and failure are related to each other? (A) Error leads to failure but fault is not related to error and failure (B) Fault leads to failure but error is not related to fault and failure (C) Error leads to fault and fault leads to failure (D) Fault leads to error and error leads to failure
by

1 Answer

Answer :

(C) Error leads to fault and fault leads to failure
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Related questions

Which one of the following is not a definition of error ? (A) It refers to the discrepancy between a computed, observed or measured value and the true, specified or theoretically correct value. (B) It refers to the actual output of a software and the correct output. (C) It refers to a condition that causes a system to fail. (D) It refers to human action that results in software containing a defect or fault.

Description : Which one of the following is not a definition of error ? (A) It refers to the discrepancy between a computed, observed or measured value and the true, specified or theoretically correct value. (B) It ... to fail. (D) It refers to human action that results in software containing a defect or fault. 

Last Answer : The input, or clock pulse.

Which one of the following statements is incorrect ? (A) Pareto analysis is a statistical method used for analyzing causes, and is one of the primary tools for quality management. (B) Reliability of a software specifies the probability of failure-free operation of that software for a given time duration. (C) The reliability of a system can also be specified as the Mean Time To Failure (MTTF). (D) In white-box testing, the test cases are decided from the specifications or the requirements.

Description : Which one of the following statements is incorrect ? (A) Pareto analysis is a statistical method used for analyzing causes, and is one of the primary tools for quality management. (B) Reliability of ... (D) In white-box testing, the test cases are decided from the specifications or the requirements.

Last Answer : (D) In white-box testing, the test cases are decided from the specifications or the requirements.

If a program in its functioning has not met user requirements is some way, then it is (A) an error. (B) a failure. (C) a fault. (D) a defect.

Description : If a program in its functioning has not met user requirements is some way, then it is (A) an error. (B) a failure. (C) a fault. (D) a defect.

Last Answer : (D) a defect.

Define Bug, Error, Fault, and Failure.

Description : Define Bug, Error, Fault, and Failure.

Last Answer :  Bug: A bug can be defined as the initiation of error or a problem due to which fault, failure, incident or an anomaly occurs. Error: A human action that produces an incorrect result. ... prescribed in the system specification. A software fault becomes a software failure only when it is activated.

The quick design of a software that is visible to end users leads to ............ (A) iterative model (B) prototype model (C) spiral model (D) waterfall model

Description : The quick design of a software that is visible to end users leads to ............ (A) iterative model (B) prototype model (C) spiral model (D) waterfall model 

Last Answer : (B) prototype model

Mutation testing is related to A. Fault seeding B. Functional testing C. Fault checking D. None of the above

Description : Mutation testing is related to A. Fault seeding B. Functional testing C. Fault checking D. None of the above

Last Answer : A. Fault seeding

Testing of software with actual data and in actual environment is called (A) Alpha testing (B) Beta testing (C) Regression testing (D) None of the above

Description : Testing of software with actual data and in actual environment is called (A) Alpha testing (B) Beta testing (C) Regression testing (D) None of the above

Last Answer : (B) Beta testing

Software testing is (A) the process of establishing that errors are not present. (B) the process of establishing confidence that a program does what it is supposed to do. (C) the process of executing a program to show that it is working as per specifications. (D) the process of executing a program with the intent of finding errors.

Description : Software testing is (A) the process of establishing that errors are not present. (B) the process of establishing confidence that a program does what it is supposed to do. (C) the process of ... as per specifications. (D) the process of executing a program with the intent of finding errors. 

Last Answer : (D) the process of executing a program with the intent of finding errors.

Adaptive maintenance is a maintenance which ............. (A) Correct errors that were not discovered till testing phase. (B) is carried out to port the existing software to a new environment. (C) improves the system performance. (D) both (B) and (C)

Description : Adaptive maintenance is a maintenance which ............. (A) Correct errors that were not discovered till testing phase. (B) is carried out to port the existing software to a new environment. (C) improves the system performance. (D) both (B) and (C)

Last Answer : (B) is carried out to port the existing software to a new environment.

In which testing strategy requirements established during requirements analysis are validated against developed software? (A) Validation testing (B) Integration testing (C) Regression testing (D) System testing

Description : In which testing strategy requirements established during requirements analysis are validated against developed software? (A) Validation testing (B) Integration testing (C) Regression testing (D) System testing

Last Answer : (A) Validation testing

Which of the following are facts about a top-down software testing approach? I. Top-down testing typically requires the tester to build method stubs. II. Top-down testing typically requires the tester to build test drivers. (1) only I (2) Only II (3) Both I and II (4) Neither I nor II

Description : Which of the following are facts about a top-down software testing approach? I. Top-down testing typically requires the tester to build method stubs. II. Top-down testing typically requires the tester to build test drivers. (1) only I (2) Only II (3) Both I and II (4) Neither I nor II

Last Answer : (1) only I

Which of the following statement(s) is/are TRUE with regard to software testing? I. Regression testing technique ensures that the software product runs correctly after the changes during maintenance. II. Equivalence partitioning is a white-box testing technique that divides the input domain of a program into classes of data from which test cases can be derived. (1) only I (2) only II (3) both I and II (4) neither I nor II

Description : Which of the following statement(s) is/are TRUE with regard to software testing? I. Regression testing technique ensures that the software product runs correctly after the changes during maintenance. II. Equivalence partitioning is a ... (1) only I (2) only II (3) both I and II (4) neither I nor II

Last Answer : (1) only I 

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%.

Let the page fault service time be 10 millisecond(ms) in a computer with average memory access time being 20 nanosecond(ns). If one page fault is generated for every 106 memory accesses, what is the effective access time for memory? (A) 21 ns (B) 23 ns (C) 30 ns (D) 35 ns

Description : Let the page fault service time be 10 millisecond(ms) in a computer with average memory access time being 20 nanosecond(ns). If one page fault is generated for every 106 memory accesses, what is the effective access time for memory? (A) 21 ns (B) 23 ns (C) 30 ns (D) 35 ns

Last Answer : (C) 30 ns

In a demand paging memory system, page table is held in registers. The time taken to service a page fault is 8 m.sec. if an empty frame is available or if the replaced page is not modified, and it takes 20 m.secs., if the replaced page is modified. What is the average access time to service a page fault assuming that the page to be replaced is modified 70% of the time ? (A) 11.6 m.sec. (B) 16.4 m.sec. (C) 28 m.sec. (D) 14 m.sec.

Description : In a demand paging memory system, page table is held in registers. The time taken to service a page fault is 8 m.sec. if an empty frame is available or if the replaced page is not modified, and it takes 20 m.secs., if the replaced ... ? (A) 11.6 m.sec. (B) 16.4 m.sec. (C) 28 m.sec. (D) 14 m.sec.

Last Answer : (B) 16.4 m.sec. 

A virtual memory has a page size of 1K words. There are eight pages and four blocks. The associative memory page table contains the following entries: Image Which of the following list of virtual addresses (in decimal) will not cause any page fault if referenced by the CPU? (A) 1024, 3072, 4096, 6144 (B) 1234, 4012, 5000, 6200 (C) 1020, 3012, 6120, 8100 (D) 2021, 4050, 5112, 7100

Description : A virtual memory has a page size of 1K words. There are eight pages and four blocks. The associative memory page table contains the following entries:  Which of the following list of virtual addresses (in ... 1234, 4012, 5000, 6200 (C) 1020, 3012, 6120, 8100 (D) 2021, 4050, 5112, 7100

Last Answer : Answer: C Explanation: The pages which are not in main memory are: 1020 will not cause page fault (1024-2047) 3012 will not cause page fault (3072-4095) 6120 will not cause page fault (4096-5119) 8100 will not cause page fault (6144-7167)

Which one of the following statements, related to the requirements phase in Software Engineering, is incorrect ? (A) “Requirement validation” is one of the activities in the requirements phase. (B) “Prototyping” is one of the methods for requirement analysis. (C) “Modelling-oriented approach” is one of the methods for specifying the functional specifications. (D) “Function points” is one of the most commonly used size metric for requirements.

Description : Which one of the following statements, related to the requirements phase in Software Engineering, is incorrect ? (A) Requirement validation is one of the activities in the requirements phase. (B) ... . (D) Function points is one of the most commonly used size metric for requirements. 

Last Answer : (C) “Modelling-oriented approach” is one of the methods for specifying the functional specifications. 

Which testing methods are used by end-users who actually test software before they use it? A. Alpha & Beta Testing B. White Box Testing C. Black Box Testing D. Trial & Error Testing

Description : Which testing methods are used by end-users who actually test software before they use it? A. Alpha & Beta Testing B. White Box Testing C. Black Box Testing D. Trial & Error Testing

Last Answer : A. Alpha & Beta Testing

Ungrounded neutral transmission system is not recommended because of system (a) insulation being overstressed due to over voltages (b) insulation overstress may lead to failure and subsequent phase to phase faults (c) being inadequately protected against ground fault (d) all of the above

Description : Ungrounded neutral transmission system is not recommended because of system (a) insulation being overstressed due to over voltages (b) insulation overstress may lead to failure and subsequent phase to phase faults (c) being inadequately protected against ground fault (d) all of the above

Last Answer : (d) all of the above

Failure of students in examination, it may be the fault of Options: A) teacher B) principal C) students themselves D) both (a)and ( c)

Description : Failure of students in examination, it may be the fault of Options: A) teacher B) principal C) students themselves D) both (a)and ( c)

Last Answer : D) both (a)and ( c) 

Which of the following is/ are the drawbacks of Ring Topology? A) Failure of one computer, can affect the whole network B) Adding or removing the computers disturbs the network activity. C) If the central hub fails, the whole network fails to operate. D) Both of A and B

Description : Which of the following is/ are the drawbacks of Ring Topology? A) Failure of one computer, can affect the whole network B) Adding or removing the computers disturbs the network activity. C) If the central hub fails, the whole network fails to operate. D) Both of A and B

Last Answer : D) Both of A and B

Assume that a program will experience 200 failures in infinite time. It has now experienced 100 failures. The initial failure intensity was 20 failures/CPU hr. Then the current failure intensity will be (A) 5 failures/CPU hr (B) 10 failures/CPU hr. (C) 20 failures/CPU hr. (D) 40 failures/CPU hr.

Description : Assume that a program will experience 200 failures in infinite time. It has now experienced 100 failures. The initial failure intensity was 20 failures/CPU hr. Then the current failure intensity will be (A) 5 failures/CPU hr (B) 10 failures/CPU hr. (C) 20 failures/CPU hr. (D) 40 failures/CPU hr.

Last Answer : (B) 10 failures/CPU hr.

Choosing a discrete value that is near but not exactly at the analog signal level leads to a) PCM error b) Quantization error c) PAM error d) Sampling error

Description : Choosing a discrete value that is near but not exactly at the analog signal level leads to a) PCM error b) Quantization error c) PAM error d) Sampling error

Last Answer : b) Quantization error

A fault simulation testing technique is (A) Mutation testing (B) Stress testing (C) Black box testing (D) White box testing

Description : A fault simulation testing technique is (A) Mutation testing (B) Stress testing (C) Black box testing (D) White box testing

Last Answer : (A) Mutation testing

One of the fault base testing techniques is (A) unit testing. (B) beta testing. (C) Stress testing. (D) mutation testing.

Description : One of the fault base testing techniques is (A) unit testing. (B) beta testing. (C) Stress testing. (D) mutation testing.

Last Answer : (D) mutation testing.

Cable Fault Testing Practical

Description : Cable Fault Testing Practical

Last Answer : Practical Significance Cable faults can be occur with insulation damage due to ageing, excess heat, wrong handling, improper termination of cable, and moisture in the soil. To restore the supply fault finding ... and record the reading. 6. Repeat all tests from end B and record all readings.

………….. Phase is a time consuming phase and yet a very crucial phase A) Feasibility Study B) Requirement Phase C) Analysis Phase D) Testing Phase

Description : ………….. Phase is a time consuming phase and yet a very crucial phase A) Feasibility Study B) Requirement Phase C) Analysis Phase D) Testing Phase

Last Answer : C) Analysis Phase

Equivalence partitioning is a .................. method that divides the input domain of a program into classes of data from which test cases can be derived. (A) White-box testing (B) Black-box testing (C) Orthogonal array testing (D) Stress testing

Description : Equivalence partitioning is a .................. method that divides the input domain of a program into classes of data from which test cases can be derived. (A) White-box testing (B) Black-box testing (C) Orthogonal array testing (D) Stress testing

Last Answer : (B) Black-box testing

In a classful addressing, the IP addresses with 0 (zero) as network number: (A) refers to the current network (B) refers to broadcast on the local network (C) refers to broadcast on a distant network (D) refers to loopback testing

Description : In a classful addressing, the IP addresses with 0 (zero) as network number: (A) refers to the current network (B) refers to broadcast on the local network (C) refers to broadcast on a distant network (D) refers to loopback testing

Last Answer : (A) refers to the current network

The major shortcoming of waterfall model is (A) the difficulty in accommodating changes after requirement analysis. (B) the difficult in accommodating changes after feasibility analysis. (C) the system testing. (D) the maintenance of system.

Description : The major shortcoming of waterfall model is (A) the difficulty in accommodating changes after requirement analysis. (B) the difficult in accommodating changes after feasibility analysis. (C) the system testing. (D) the maintenance of system.

Last Answer : (A) the difficulty in accommodating changes after requirement analysis.

What is mechanical error ? What is a mechanical fault ?

Description : What is mechanical error ? What is a mechanical fault ?

Last Answer : : In physics, if there is any defect in the instrument that we need for measuring while testing something, it is called mechanical error.

Citroen C8 catalytic converter fault - engine error

Description : Hi I have a Citroen C8 2.2 petrol year 2004, they repaired the connecting rods because it was bent on 4 cylinders, after the repairing the connecting rods the engine behaves well (lower consumption, ... have a similar experience? can the two defects be related in any way? Please any advice thanks

Last Answer : Need Answer

When does a Page fault occur? (1) There is an error in a specific page (2) A program accesses a page not currently in main memory (3) A program accesses a page of main memory (4) A program accesses a page belonging to another program

Description : When does a Page fault occur? (1) There is an error in a specific page (2) A program accesses a page not currently in main memory (3) A program accesses a page of main memory (4) A program accesses a page belonging to another program

Last Answer : A program accesses a page not currently in main memory

What error will be generated if a space is given between the logical AND operator (&&)? Will it be a compile-time or a run-time error?

Description : What error will be generated if a space is given between the logical AND operator (&&)? Will it be a compile-time or a run-time error?

Last Answer : Example: if(5>2 & & 6

Match the following HTTP status code to their respective definitions. i) 400 a) OK ii) 500 b) Not found iii) 200 c) Continue iv) 100 d) Internal server error A) i-b, ii-d, iii-a, iv-c B) i-a, ii-b, iii-c, iv-d C) i-b, ii-c, iii-a, iv-d D) i-b, ii-a, iii-c, iv-d

Description : Match the following HTTP status code to their respective definitions. i) 400 a) OK ii) 500 b) Not found iii) 200 c) Continue iv) 100 d) Internal server error A) i-b, ii-d, iii-a, iv-c B) i-a, ii-b, iii-c, iv-d C) i-b, ii-c, iii-a, iv-d D) i-b, ii-a, iii-c, iv-d

Last Answer : A) i-b, ii-d, iii-a, iv-c

What would happen if "String[]args" is not included as argument in the main method. A) No error B) Compilation error C) Program won't run D) Program exit

Description : What would happen if "String[]args" is not included as argument in the main method. A) No error B) Compilation error C) Program won't run D) Program exit

Last Answer : C) Program won't run

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

Match the following HTTP status code to their respective definitions. i) 400 a) OK ii) 500 b) Not found iii) 200 c) Continue iv) 100 d) Internal server error A) i-b, ii-d, iii-a, iv-c B) i-a, ii-b, iii-c, iv-d C) i-b, ii-c, iii-a, iv-d D) i-b, ii-a, iii-c, iv-d

Description : Match the following HTTP status code to their respective definitions. i) 400 a) OK ii) 500 b) Not found iii) 200 c) Continue iv) 100 d) Internal server error A) i-b, ii-d, iii-a, iv-c B) i-a, ii-b, iii-c, iv-d C) i-b, ii-c, iii-a, iv-d D) i-b, ii-a, iii-c, iv-d

Last Answer : A) i-b, ii-d, iii-a, iv-c

The ............layer of OSI model can use the trailer of the frame for error detection. A) Physical B) Data link C) Transport D) Presentation

Description : The ............layer of OSI model can use the trailer of the frame for error detection. A) Physical B) Data link C) Transport D) Presentation

Last Answer : A) Physical

What is the output of the following code? a={1:"A",2:"B",3:"C"} a.setdefault(4,"D") print(a) a) {1: ‘A’, 2: ‘B’, 3: ‘C’, 4: ‘D’}. b) None. c) Error.

Description : What is the output of the following code? a={1:"A",2:"B",3:"C"} a.setdefault(4,"D") print(a) a) {1: ‘A’, 2: ‘B’, 3: ‘C’, 4: ‘D’}. b) None. c) Error.

Last Answer : a) {1: ‘A’, 2: ‘B’, 3: ‘C’, 4: ‘D’}.

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

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

Description : 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 ... Python raises a KeyError exception d) Since susan is not a key in the set, Python raises a syntax error

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

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? 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? 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 is the output of the following code? >>> a=(1,2,3,4) >>> del(a[2]) a) Now, a=(1,2,4) b) Now, a=(1,3,4) c) Now a=(3,4) d) Error as tuple is immutable

Description : What is the output of the following code? >>> a=(1,2,3,4) >>> del(a[2]) a) Now, a=(1,2,4) b) Now, a=(1,3,4) c) Now a=(3,4) d) Error as tuple is immutable

Last Answer : d) Error as tuple is immutable

If a=(1,2,3,4), a[1:-1] is a) Error, tuple slicing doesn’t exist b) [2,3]. c) (2,3,4) d) (2,3)

Description : If a=(1,2,3,4), a[1:-1] is a) Error, tuple slicing doesn’t exist b) [2,3]. c) (2,3,4) d) (2,3)

Last Answer : d) (2,3)

What will be the output? >>>my_tuple = (1, 2, 3, 4) >>>my_tuple.append( (5, 6, 7) ) >>>print len(my_tuple) a) 1 b) 2 c) 5 d) Error

Description : What will be the output? >>>my_tuple = (1, 2, 3, 4) >>>my_tuple.append( (5, 6, 7) ) >>>print len(my_tuple) a) 1 b) 2 c) 5 d) Error

Last Answer : c) 5

What will be the output? >>>t1 = (1, 2, 4, 3) >>>t2 = (1, 2, 3, 4) >>>t1 < t2 a) True b) False c) Error d) None

Description : What will be the output? >>>t1 = (1, 2, 4, 3) >>>t2 = (1, 2, 3, 4) >>>t1 < t2 a) True b) False c) Error d) None

Last Answer : b) False