Software Engineering Practice Test 2

Which expression statement regarding Reviews and Meetings is FALSE?

The A’s in SAMOSA stands for Agenda and Action items, which are optional pieces of good meetings

Can be beneficial to both presenters and attendees

They result in technical information exchange and can be highly educational for junior people

Intended to improve the quality of the software product using the wisdom of the attendees

A design review is a meeting where authors present their design with the goal of what?

Quality

Writing code

Determing the requirements

Starting a design

Which one of these is NOT a classic technique of debugging

Coding invariants

Interactive debugging

Logging

Printing to terminal ("printf debugging")

Metaprogramming, according to Armando, is ____

To be avoided, because of the complexity

A nice feature to have, but not necessary

Useless

All programming in Ruby

Which of the following is not a part of the "Plan and Document" process?

The plan should be made before coding

Measure progress against the plan

Write detailed documentation for all the phases of the plan

Once the plan is written, no one can change it

When performing Software Quality Assurance, what is the correct order of testing from the lowest level (single methods) to the highest level (integrated program)?

System/Acceptance Testing, Unit Testing, Integration Testing, Modular Testing

Unit Testing, Integration Testing, Modular Testing, System/Acceptance Testing

Unit Testing, Module Testing, Integration Testing, System/Acceptance Testing

Unit Testing, Module Testing, System/Acceptance Testing, Integration Testing

Cucumber takes a user story and uses _______ to match English phrases to your ruby test code.

Rails Magic

Regular Expressions

Keywords

Method Calls

Which of the following are guidelines for making a meeting effective? (Select all that apply.)

Start and stop meeting promptly

Create the agenda in advance

Record minutes so everyone can recall results

Set the time and date of the next meeting

Knowing how to read error messages can save you hours of time and effort. What is most likely the cause for the following error message: ‘undefined method ‘foo’ for nil:NilClass’ ?

There is no method 'foo'

An assignment silently failed, and you didn't error check

The method 'foo' was suppose to return false

The method 'foo' was suppose to return true

Which HTML attributes can be used to identify an element or group of elements to apply a common set of visual styles?

Colspan & rowspan

Ref & href

Src & alt

Id & class

In Ruby, method_missing (if defined) would be passed the ___.

Method name symbol, and arguments

Programmer-defined error message

exception object

Method type

Which of the following is NOT one of the techniques mentioned to reuse code?

Object Oriented Programming

Copy and Pasting previously used code

Design Patterns

Standardized Libraries

Suppose you discover that your most recent release contains a bug whose regression test will require extensive mocking or stubbing because the buggy code is convoluted. Which action, if any, is NOT appropriate?

Do the refactoring using TDD on the release branch, and push the bug fix as new code with tests

Do the refactoring using TDD on a different branch, push the bug fix as new code with tests, then cherry-pick the fix into release

Create a regression test with the necessary mocks and stubs, painful though it may be, and push the bugfix and tests to release branch

Depending on project priorities and project management, any of the above might be appropriate

In Rails, what is the primary function of ActiveRecord? (choose the best answer)

to allow you to perform SQL statements on the database

To perform CRUD operations

To keep an active record

To connect the model to the database

According to Armando, what is the preferred way to print out all the elements of an Array in Ruby, assuming an Array named arr has been defined?

For I in (0..arr.length) do puts arr[i] end

for (i = 0; I < arr.length; I += 1) do puts arr[i] end

CurEl = arr[0] I = 1 while I < arr.length do puts arr[i] I += 1 end

Arr.each do |elt| puts elt end

Which of the following is true about adding more people to a project?

Adding people tends to hurt a late project, not help it

More people means that the project will be done quicker

It takes some of the load off the Project Manager

Adding more people doesn't help or hurt a project

Which of the following is NOT true of using Software as a Service (SaaS)?

With SaaS, you don't have to worry about backing up frequently and data loss.

Software developers must make sure the software is compatible with all machines and environments in which the software will be run on.

It is easy to install without worrying about hardware capabilities.

SaaS makes it easier for groups to interact with the same data.

If separate sub-teams are assigned to work on release bug fixes and new features, you will need to use:

Branch per release

Branch per feature

Branch per release + Branch per feature

Any of these will work

A user story in the format of: " As a [stakeholder] So that [I can achieve some goal] I want to [do some task] " is called:

Connextra format

Rails format

User format

Expression format

In order to make changes necessary to implement a particular feature without affecting the master branch the developer should create a _____ branch.

Segment

Module

Fragment

Feature

Assuming we have a model called User and we call User.new, the database table users is automatically updated with a new record.

True

False

Using the MVC pattern means each entity in your app will have its own:

database, TCP/IP port, and app

Model, controller, and set of views

Name, structure, and interface

Where would a programmer look to find the assumptions that can be made for the Enumerable class? (Hint: The answer is your best friend according to Armando.)

In the code.

In the documentation

In the superclass

In the class header

Which of the following is a part of the Agile Manifesto?

Avoid change requests to prevent delays in the project.

Make sure that the customer knows the details of the contract

Working programs are more important than detailed documentation

Processes and tools over individuals

Which of the following is NOT true when using SOA (Service Oriented Architecture)?

An SOA benefit is code reuse.

All components are designed to be a service.

It is harder to recover from mistakes in design.

SOA makes it easier to create customized services.

If you try to push to a remote and get a “non-fast-forward (error): failed to push some refs”, which statement is FALSE?

Some commits present at remote are not present on your local repo

You need to do a merge/pull before you can complete the push

You need to manually fix merge conflicts in one or more files

Your local repo is out-of-date with respect to the remote

Which Git command allows the developer to only merge the changes from specific (named) commits?

Git cherry-pick

Git push

Git merge

Git select

The preferred method to make any changes to the database schema in a Rails app is:

db_update

A SQL GUI browser

Replace the production database with the new schema

A migration

Which method definition could be used in order to compare two objects (sheep1 and sheep2) of the Sheep class in the following way? sheep1 < sheep2

The Sheep class is not defined by Ruby and therefore cannot be compared in this way.

Class Sheep operator <(other_sheep) # implementation end end

Class Sheep def less_than(other_sheep) # implementation end end

Class Sheep include Comparable def <=>(other_sheep) # implementation end end

The lecture gave 10 questions to determine whether or not you should use Agile. Which of the following is not one of these questions?

Does the team have poor programming skills?

Will it have a long product lifetime?

Are you using poor software tools?

Do you have a set budget?

To contrast legacy code, we use the term___to indicate long-lasting code that is easy to evolve.

Genius code

Successful code

Beautiful code

unexpectedly long-lasting code

Which statement is TRUE?

Usually you complete the Behavior Driven Design phase with Cucumber before starting the Test Driven Development phase with RSpec

Usually you code the sad paths first

A sad path can pass without having code written needed to make a happy path pass

None of the above is true

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Software Engineering Practice Test 2

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