Recent questions tagged software-reliability / GATE Overflow for GATE CSE

0 votes

2 answers

1

Computer Science - UGC NET 2021 [ Question ID = 2349 ]
Given below are two statements : Statement I: Cleanroom software process model incorporates the statistical quality certification of code increments as they accumulate into a system. Statement II: Cleanroom software engineering follows the classic analysis, ... I is true but Statement II is false. Statement I is false but Statement II is true.

Given below are two statements : Statement I: Cleanroom software process model incorporates the statistical quality certification of code increments as they accumulate in...

rajeshposts

441 views

rajeshposts asked Sep 11, 2023

0 votes

1 answer

2

Computer Science - UGC NET 2021 [ Question ID = 2346 ]
In the context of Software Configuration Management (SCM), what kind of files should be committed to your source control repository ? Code files Documentation files Output files Automatically generated files that are required for your system to be used Choose ... from the options given below: A and B only B and C only C and D only D and A only

In the context of Software Configuration Management (SCM), what kind of files should be committed to your source control repository ?Code filesDocumentation filesOutput f...

rajeshposts

279 views

rajeshposts asked Sep 4, 2023

0 votes

1 answer

3

Computer Science - UGC NET 2021 [ Question ID = 2345 ]
A system has 99.99% uptime and has a mean-time-between-failure of 1 day. How fast does the system have to repair itself in order to reach this availability goal ? 10 Seconds 11 Seconds 12 Seconds 9 Seconds

A system has 99.99% uptime and has a mean-time-between-failure of 1 day. How fast does the system have to repair itself in order to reach this availability goal ?10 Secon...

rajeshposts

425 views

rajeshposts asked Sep 3, 2023

0 votes

2 answers

4

UGC NET CSE | June 2014 | Part 3 | Question: 17
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 5 failured/CPU hr 10 failured/CPU hr 20 failured/CPU hr 40 failured/CPU hr

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 c...

go_editor

6.0k views

go_editor asked Jan 6, 2017

1 votes

1 answer

5

UGC NET CSE | August 2016 | Part 2 | Question: 45
The extent to which a software performs its intended functions without failures, is termed as Robustness Correctness Reliability Accuracy

The extent to which a software performs its intended functions without failures, is termed asRobustnessCorrectnessReliabilityAccuracy

makhdoom ghaya

2.2k views

makhdoom ghaya asked Sep 28, 2016

1 votes

1 answer

6

UGC NET CSE | June 2016 | Part 3 | Question: 43
A server crashes on the average once in 30 days, that is, the Mean Time Between Failures (MTBF) is 30 days. When it happens it takes 12 hours to reboot it, that is, Mean Time To Repair (MTTR) is 12 hours. The availability of server with these reliability data values is approximately. 96.3 % 97.3 % 98.3% 99.3%

A server crashes on the average once in 30 days, that is, the Mean Time Between Failures (MTBF) is 30 days. When it happens it takes 12 hours to reboot it, that is, Mean ...

go_editor

5.3k views

go_editor asked Aug 20, 2016

2 votes

2 answers

7

UGC NET CSE | December 2011 | Part 2 | Question: 16
Emergency fixes known as patches are result of Adaptive maintenance Perfective maintenance Corrective maintenance None of the above

Emergency fixes known as patches are result ofAdaptive maintenancePerfective maintenanceCorrective maintenanceNone of the above

makhdoom ghaya

2.7k views

makhdoom ghaya asked Aug 16, 2016

2 votes

1 answer

8

UGC NET CSE | December 2014 | Part 3 | Question: 46
Maximum possible value of reliability is $100$ $10$ $1$ $0$

Maximum possible value of reliability is$100$$10$$1$ $0$

makhdoom ghaya

2.8k views

makhdoom ghaya asked Jul 29, 2016

0 votes

1 answer

9

UGC NET CSE | September 2013 | Part 3 | Question: 44
The failure intensity for a basic model as a function of failures experienced is given as $\lambda (\mu) - \lambda_0[1-(\mu)/(V_0)]$ where $\lambda_0$ is the initial failure intensity at the start of the execution, $\mu$ is the average or ... of failures intensity per failure will be 10 per CPU hr 0.1 per CPU hr -0.1 per CPU hr 90 per CPU hr

The failure intensity for a basic model as a function of failures experienced is given as $\lambda (\mu) - \lambda_0[1-(\mu)/(V_0)]$ where $\lambda_0$ is the initial fail...

go_editor

2.9k views

go_editor asked Jul 24, 2016

0 votes

1 answer

10

UGC NET CSE | June 2013 | Part 3 | Question: 6
Software safety is a ______ activity that focuses on the identification and assessment of potential hazards that may affect software negatively and cause an entire system to fail. Risk mitigation, monitoring and management Software quality assurance Software quality assurance Defect removal efficiency

Software safety is a ______ activity that focuses on the identification and assessment of potential hazards that may affect software negatively and cause an entire system...

go_editor

2.6k views

go_editor asked Jul 16, 2016

0 votes

1 answer

11

UGC NET CSE | June 2013 | Part 3 | Question: 2
Match the following $:$ ... $\text{a-ii, b-i, c-iii, d-iv}$ $\text{a-ii, b-iv, c-iii, d-i}$

Match the following $:$$\begin{array}{} \text{a. }& \text{Watson-Felix model} & \text{i.}& \text{Failure intensity} \\ \text{b.}& \text{Ouick-Fix model} & \text{ii.} & \...

go_editor

2.1k views

go_editor asked Jul 16, 2016

5 votes

3 answers

12

ISRO2007-79
Which of the following models used for software reliability Waterfall Musa COCOMO Rayleigh

Which of the following models used for software reliabilityWaterfallMusaCOCOMORayleigh

go_editor

5.0k views

go_editor asked Jun 10, 2016

3 votes

1 answer

13

GATE IT 2004 | Question: 72
What is the availability of a software with the following reliability figures? Mean Time Between Failure (MTBF) = 25 days Mean Time To Repair (MTTR) = 6 hours 1% 24% 99% 99.009%

What is the availability of a software with the following reliability figures?Mean Time Between Failure (MTBF) = 25 daysMean Time To Repair (MTTR) = 6 hours1%24%99%99.009...

Ishrat Jahan

5.2k views

Ishrat Jahan asked Nov 2, 2014

4 votes

2 answers

14

GATE IT 2006 | Question: 58
A software program consists of two modules M1 and M2 that can fail independently, but never simultaneously. The program is considered to have failed if any of these modules fails. Both the modules are 'repairable' and so the program starts working again as soon as the repair ... ((R1R2)/(T1R1 + T2R2)) ((T1T2)/(T1T2 + T1R1 + T2R2)) ((T1T2)/(T1T2 + T1R2 + T2R1))

A software program consists of two modules M1 and M2 that can fail independently, but never simultaneously. The program is considered to have failed if any of these modul...

Ishrat Jahan

1.5k views

Ishrat Jahan asked Nov 1, 2014

1 votes

1 answer

15

GATE IT 2007 | Question: 51
The following table shows the time between failures for a software system. Error Number 1 2 3 4 5 Time since last failure(hours) 6 4 8 5 6 The reliability of the system for one hour of operation assuming an exponential model is : 0.45 0.63 0.84 0.95

The following table shows the time between failures for a software system.Error Number12345Time since last failure(hours)64856The reliability of the system for one hour o...

Ishrat Jahan

2.1k views

Ishrat Jahan asked Oct 30, 2014

tags	tag:apple
author	user:martin
title	title:apple
content	content:apple
exclude	-tag:apple
force match	+apple
views	views:100
score	score:10
answers	answers:2
is accepted	isaccepted:true
is closed	isclosed:true