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Color Theory
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EXAM
In a color wheel, the colors directly opposite to each other has maximum contrast.
TRUE
Which color system allows designers to match the colors irrespective of the equipment used for the
color production?
PANTONE
Which one of the following is a warm color?
Red, Orange or Yellow
Which of the following is a tertiary color?
Teal
The colors should be combined in such a way that it creates a ______
Harmony
Which one of the following is a primary color?
Red, Yellow and Blue
The color scheme made by choosing colors that are evenly spaced on the color wheel is called as
Triadic
All colors are mixtures of red, blue and green lights.
TRUE
Who developed the concept of 'color of light' that states all colors are mixtures of red, green and
blue lights?
Issac Newton
Which color scheme is mostly used in minimalistic designs?
Monochromatic
The color scheme made by choosing colors that are adjacent to each other on the color wheel is
called as
Analogous
Adding black to an original color will give you a ______
SHADE
Which is the color system used by most printers?
CMYK
______ measures the variation among grays and refers to the darkness or lightness of a color.
Value
Red and green are complementary colors.
TRUE
In which of the following color gradient types, the colors sweep around the starting point in a
counterclockwise direction?
Angular
The color scheme made by choosing colors that are directly opposite to each other on the color
wheel is called as
Complementary
Inability of a person to recognize red color is known as
Protanopia
A color wheel helps you to create meaningful color schemes for your designs.
TRUE
Inability of a person to recognize blue/yellow color is known as
Tritanopia
The process of creating color by blocking white light using pigment of dyes is called as
Subtractive Process
Red and Blue colors combine to form
Purple
Which of the following colors is associated with love, passion, danger, and warning?
Red
Which color scheme is used in designs that need a good contrast?
Complementary
Which one of the following is a neutral color?
White
Which of the following colors is associated with trust, security, coldness, and fear?
Blue
The decreased ability of a person to distinguish between colors is known as
Color blindness
Adding gray to an original color will give you a ______
Tone
Red and green are analogous colors.
False
All colors are mixtures of red, blue and yellow pigments
TRUE
The process of creating color by adding light to a black background is called as
Additive Process
The color scheme that only involves white and black color is called as
Achromatic
The color scheme made by choosing different tints, tones, and shades of the same hue is called as
Monochromatic
Which of the following colors is associated with love, passion, danger, and warning?
Red
Who developed the concept of 'color of paint' that states all colors are mixtures of red, yellow and
blue pigments?
Moses Harris
In which of the following color gradient types, the colors sweep around the starting point in a
counterclockwise direction?
x-Radial
Which is the color system used by most monitors?
x-RGB
Red and Yellow colors combine to form
Orange
Gray is a neutral color
True
Which one of the following is a cool color?
Blue, green
Which of the following colors is associated with trust, security, coldness, and fear?
Blue
The variance between two colors is known as
Color Contrast
A color wheel helps you to create meaningful color schemes for your designs.
Adding white to an original color will give you a ______
Tint
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APIGEE - Analytics Services
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After signing up, you can directly login to the developer portal
True
Which of the following is not an option that is shown after clicking +spec in spec page.
Import json
Apps registered in developer portal are visible in edge portal.
True
Swagger documentation helps in understanding the functionality of ____
API
An API product is a collection of proxies with _______
key approval methods
Both input parameter and output can be found in developer portal
False
Drupal portal can be a ____
both
What is the name of the logo file in Apigee developer portal.
logo-web.png
To reflect the changes made in the portal click on
Publish
You can generate ____ in developer portal.
both
Apigee provides ____ services.
All the options
To decline access to a particular API key click on _____ in app menu.
revoke
Developer portal helps in exposing APIs.
True
You can restrict the audience to your developer portal.
True
You can access developer portal’s CSS using the option
Theme settings
The logo of the developer portal should be in ____ format.
png
Apigee's API platform allows you to ____ your APIs.
All the options
Each API product subscribed by an app requires separate key.
False
Apigee allows you to add ____ header while creating proxy.
x-All
Apigee’s spec gen tool generates swagger in ____ format.
x-Both
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APIGEE - Developer Services
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Which query parameter specifies the type of data.
Which query parameter specifies the type of data?
Metrics -- Correct
Apigee helps you to diagnose app performance by _____.
All of the options -- Correct
_________ attribute is used to limit the results.
Filter -- Correct
Apigee’s analytics metrics helps in ____ monitoring.
Both the options -- Correct
By default, the dashboards are maintained for ______ months.
12 -- Correct
When using filter you should use _____ as a property.
Dimensions -- Correct
By default, the Custom is maintained for ______ months.
6 -- Correct
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Apigee analytics allows you to export the data in ____ format.
csv -- Correct
runload.js also applies a ______ function, so that the number of calls it actually makes varies
randomly around a specified number.
Gaussian -- Correct
____ lets you choose which set of data you want to plot.
Plot selectors -- Correct
You can extract the returned access_token, and insert it into the context, and then use that token in
subsequent calls.
True -- Correct
You can hover on any part of the graph to get information about that particular data at that point.
True -- Correct
____ settings helps you in selecting the of dates for which to show data and the aggregation or
granularity of that data.
Both the options -- Correct
The load generator is implemented as a nodejs program called _____.
runLoad.js -- Correct
Apigee chooses the client key and secret based on _____.
Weighted random selection -- Correct
To import a proxy into apigee edge, use ______.
To import a proxy into apigee edge use ______.
Proxy bundle -- Correct
In model.json change the ____ property to the DNS name of Apigee edge organization.
Host -- Correct
The load generator act as a _____.
Client -- Correct
Using ____, you should be able to see the traffic pattern after and before the spike or drop.
Investigate Anomalies -- Correct
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______ is calculated between the time a complete request is sent by Apigee to a backend target and
the response is returned by the client app.
______ is calculated between the time a complete request is sent by Apigee to a backend target and
the response is returned the client app.
Target error -- Correct
Which specifies whether a traffic is coming from a robot, a library, or a browser.
Traffic by agent -- Correct
The dashboard that appears once you login has _____.
all of the options -- Correct
Traffic patterns and processing time can be viewed in ____ dashboard.
Proxy Performance -- Correct
______ dashboard tracks error patterns, traffic patterns, and quality of service across various
locations.
GeoMap dashboard -- Correct
______ dashboard measures the contribution of your top apps, APIs, and products.
Traffic composition -- Correct
The ____ dashboard is used to visualize traffic patterns and performance for API proxy backend
targets.
Target Performance -- Correct
____ shows information like Highly Active Developers, Developers with Apps and Total Developers.
Engagement -- Correct
The rate of API calls hitting the cache vs total API traffic is called _____.
Cache Performance -- Correct
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A _____ is a method to specify exactly what you want to analyze in your API program.
custom report -- Correct
The primary measure used for a report is called _____.
Metric -- Correct
It is possible to fetch Analytics data using REST API.
True -- Correct
______ plot allows you to see the central tendency and dispersion of data.
Dispersion box plot -- Correct
Reports can be viewed in _____ format.
all of the options -- Correct
____ will create a custom dimension that will be captured every time when that proxy is invoked.
Statistics Collector Policy -- Correct
Custom reports will reflect API calls immediately in the Edge portal.
False -- Correct
It is not possible to export custom reports to any format.
False -- Correct
The ____ gives an high level overview of your entire API.
Dashboard -- Correct
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Git Slack Integration
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What is ChatOps ?
Philosophy -- Correct
Collaboration Practice -- Correct
ChatOps helps in _
All the options mentioned -- Correct
Compare the notifications triggered during Exercise 1 and Exercise 2. Which of the following
notification to slack are missing when the GitHub repository is updated in authed mode vs. unauthed
mode.
Pull Notification -- Correct
Merge the Pull request in GitHub for the updates made to starfeature branch. Which channels would
receive notification for this event?
stakeholders and starprojectteam -- Correct
Delete the branch starfeature in GitHub. Which channels would receive notification for this event?
starprojectteam -- Correct
Update the README.md file in the GitHub Branch starfeature and Commit the updates. Which
channels would receive notification for this event?
starprojectteam -- Correct
Create a New Pull Request. Review the changes between master and starfeature branch, and
confirm by clicking Create pull request. Which channels would receive notification for this event?
stakeholders and starprojectteam -- Correct
"ChatOps primary aim is to move conversations away from e-mail and into business chat tools." Is
this statement correct?
False -- Correct
Which of the following Bots are written in Ruby
Lita -- Correct
Which of the following activities can be automated through ChatOps
All the options mentioned , Make Server Configuration Changes -- Wrong
Few Channels in Slack are listed with a lock symbol in the Explorer, because these channels are ___
Private -- Correct
Through ChatOps, communication can be bi-directional. i.e. users can submit commands from the
chat room to the bots, which direct the commands to the respective systems; the systems can
automatically push status to the chat room directly.
True -- Correct
Which of the following is not an ideal target to automate through ChatOps
Auto Scaling Servers -- Correct
Through Chat Client, users can
All the options mentioned -- Correct
Which of the following are the technical benefits that the teams can realize by adapting ChatOps
All the options mentioned -- Correct
Through ChatOps, collaboration is tied to the IT systems and processes, therefore making it more
All the options mentioned -- Correct
Which of the following is the main consideration while choosing a Chatbot?
All the options mentioned -- Correct
Which of the following is not a ChatClient
Lita -- Correct
Can Chatbot be used by a restaurant to take customer orders and make menu items suggestions.
Yes -- Correct
ChatOps is a collaboration model which offers a single and persistent location, for ___ to collaborate
with each other.
People, Bots and Tools -- Correct
Which of the following tools can not be integrated into ChatOps.
Eclipse -- Correct
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UI Design
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What is ‘K’in CMYK?
Black – Correct
Name the color scheme you get by mixing different tones, shades and tints within a specific hue
Monochromatic – Selected
What is the white space located inside letters like o and p called?
Counter – Correct
Name the design language system developed by google
Material Design – Correct
Name the design concept of making items represented, resemble their real-world counterparts
Skeuomorphism – Correct
What do you get when you add black to a hue (color)?
Shade – Correct
What’s the measure of purity of the color?
Chroma – Correct
The height of a capital letter measured from the baseline
Cap Height – Correct
What’s the space between letters called?
Kerning – Correct
Which one below is a vector image format?
SVG – Correct
Name the design tool that can be used to establish a spatial hierarchy of the content
Grids – Correct
The name of the invisible line marking the height of a font.
Baseline – Correct
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Statics and Probability Basics
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What is the numerical measure of average variability of a data set around the mean
Standard deviation -- Correct
Which type of statistics helps us understand how the data looks like without giving much
information on analysis of the data?
Descriptive statistics -- Correct
Which of the following is an arithmetic mid-value?
Mean -- Correct
If a class consists of 20 males and 8 females, what is the probability of drawing 4 females without
replacement?
P = (8/28)(7/27)(6/26)*(5/25) -- Correct
Your team has 10 members and you need 3 of them for an app development. How many possible
combinations are there?
120 -- Correct
How many different ways can four team members from the group of fifteen be lined up for a
photograph.
1365 -- Correct
Identify the variables that are continuous or discrete
Time & Weight are continuous. Color & Country are discrete -- Corrects
When the Standard Deviation in a Normal Distribution is higher, which of the following is true?
The peak of the distribution is lower -- Correct
What are the characteristics of normal distribution
The mean lies at the center of the distribution -- Correct
There may be times when data is supposed to fit a normal distribution, but does not. Which of the
following could be reasons for this?
Outliers and Small Sample Size -- Correct
In which of these examples, binomial distribution can be used?
Probability of getting a certain number of questions correct in an exam -- Correct
Which of the following characteristics correspond to a Binomial Distribution?
All the options -- Correct
Which of the following conditions are satisfied by Poisson random variable?
Probability that an event occurs in a given length of time does not change over time -- Correct
Which of the following can be modelled using Poisson distribution
Number of accidents that occur on a particular highway in a given month -- Correct
Any statement whose validity is tested on the basis of a sample is called:
Statistical
-- Correct
If a finding is statistically significant one must also interpret the data, calculate an effect size
indicator, and make an assessment of practical significance
True -- Correct
The probability of rejecting the null hypothesis when it is true is called:
Level of significance -- Correct
After a clinical trial, it is concluded that both drugs A and B are equally effective. What type of a
hypothesis is this?
Null hypothesis -- Correct
The significance level is the risk of:
Rejecting H0 when H0 is correct -- Correct
If you reject H0 but H0 is true, what type of error has occurred?
Type I -- Correct
Assuming innocence until proven guilty, a Type I error occurs when an innocent person is found
guilty
True -- Correct
Which variable represents the actual Type I error?
P- value -- Correct
A Type I error is also known as a ______.
False positive -- Correct
A passing student is failed by an examiner, it is an example of:
Type-II error -- Correct
The shape of the t-distribution depends upon the:
Degrees of freedom -- Correct
Which of the following is not the purpose of student's t-distributions?
When modelling the actual number of failures in a trial -- Correct
Which of the following is not the purpose of using chi-square distributions?
To test how closely data follows a non-normal distribution -- Correct
What of the following is not a characteristic of F-distribution curve?
The curve is left skewed -- Correct
The ANOVA is a statistical test that is used to compare how many group means?
Two or more -- Correct
A post hoc test is:
A follow-up test to the ANOVA when there are three or more groups -- Correct
A statistical test used to compare 2 or more group means is known as:
One-way analysis of variance -- Correct
A statistician calculates a 95% confidence interval for Mean when Standard Deviation is known. The
confidence interval is Rs.18000 to Rs.22000, the amount of the sample mean is:
20000 -- Correct
The p-value in statistical significance testing should be used to assess how strong a relationship is.
For example, if relationship A has a p=.04 and relationship B has a p=.03 then you can conclude that
relationship B is stronger than relationship A.
False -- Correct
The use of the laws of probability to make inferences and draw statistical conclusions about
populations based on sample data is referred to as
Inferential statistics -- Correct
In which examples could binomial distribution be used?
Modelling the number of failures in a trial -- Correct
A good way to get a small standard error is to use a ________.
Small sample -- Wrong
Any hypothesis which is tested for the purpose of rejection under the assumption that it is true is
called?
Null hypothesis -- Correct
Confidence interval become narrow by increasing the:
Sample size -- Correct
An advertising agency wants to test the hypothesis that the proportion of adults in a country who
read a Sunday Magazine is 25 percent. The null hypothesis is that the proportion reading the Sunday
Magazine is:
Equal to 25% -- Correct
The analysis of variance is a statistical test that is used to compare how many group means?
Two or more -- Correct
Identify which of the following steps would not be included in hypothesis testing.
Eliminate all outliers -- Correct
An essential component of the Central Limit Theorem is that
The average of sample means will be the population mean. -- Wrong
A failing student is passed by an examiner, it is an example of:
Type-II error -- Wrong
The dividing point between the region where the null hypothesis is rejected and the region where it
is not rejected is said to be
Critical value -- Correct
A door alarm works in 72 out of 100 cases and surveillance camera works in 68 out of 100 cases.
What is the probability of effective screening techniques keeping in mind that these two methods
can be used together?
0.49 -- Wrong
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Machine Learning - Exploring the Model
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What is the process of dividing each feature by its range called ?
Feature Scaling -- Correct
Input variables are also known as feature variables.
True -- Correct
Output variables are known as Feature Variables .
False -- Correct
____________ controls the magnitude of a step taken during Gradient Descent .
Learning Rate -- Correct
The objective function for linear regression is also known as Cost Function.
True -- Correct
What is the process of subtracting the mean of each variable from its variable called ?
Mean Normalization -- Correct
For different parameters of the hypothesis function we get the same hypothesis function.
False -- Correct
How are the parameters updates during Gradient Descent Process ?
Simultaneously -- Correct
The result of scaling is a variable in the range of [1 , 10].
False -- Correct
What is the Learning Technique in which the right answer is given for each example in the data
called ?
Supervised Learning -- Correct
Problems that predict real values outputs are called ?
Regression Problems -- Correct
Cost function in linear regression is also called squared error function.
True -- Correct
What is the name of the function that takes the input and maps it to the output variable called ?
Hypothesis Function -- Correct
What is the range of the output values for a sigmoid function ?
[-inf , + inf]
Where does the sigmoid function asymptote ?
-inf and +inf
____________ is the line that separates y = 0 and y = 1 in a logistic function.
Decision Boundary-
For an underfit data set the training and the cross validation error will be high.
True-
Problems where discrete valued outputs predicted are called ?
Regression Problems-
I have a scenario where my hypothesis fits my training set well but fails to generalize for test set.
What is this scenario called ?
Generalization Failure -
So when a ML Model has high bias, getting more training data will help in improving the model
True-
For an overfit data set the cross validation error will be much bigger than the training error.
True-
What measures the extent to which the predictions change between various realizations of the
model ?
Variance-
What measure how far the predictions are from the actual values ?
Bias
For ______________ the error is determined by getting the proportion of values miss-classified by
the model
ClassificationFor
______________ the error is determined by getting the proportion of values miss-classified by
the model
Sigmoid
For _____________ the error is calculated by finding the sum of squared distance between actual
and predicted values
Regression
____________ function is used as a mapping function for classification problem.
Sigmoid
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Docker Swarm
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///// Docker Swarm //////////////////////////////
Per Raft algoroth, system can tolerate ___ failures
(N-1)/2 -- correct
Maximum number of master nodes in a swarm recommended by Docker
7 -- correct
Which of the following is not a node type in Docker Swarm?
Scheduler node -- correct
Per Raft algorith, system requires majority of ___ members to agree on values proposesd to th
ecluster
(N/2)+1 -- correct
Docker Swarm API command is used to communicate
external client to containers -- correct
--------------------------------------------------------------------------------------------------
Docker command to initialize docker swarm
docker swarm init -- correct
Command to list the services running
docker service ls -- correct
command to get details on docker swarm commands
docker swarm --help -- correct
Which of the following is a valid commant to create a service
docker service create --name service1 -d -p 80:80 tomcat -- correct
command to list the nodes currently available as part of swarm
docker node ls -- correct
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Swarm mode has an inbuilt load balancer
Ingress -- correct
Docker assign service a _____ for the clients to identify the service
Virtual ip -- correct
Docker swarm command to drain a worker node
docker node update <worker-node> availavility=drain -- correct
Technique used by Docker Swarm mode to enable multi-host networking
Routing mesh -- correct
==================================================================================
======
Docker Swarm command to inspect the new swarm service created
docker service inspect service-name -- correct
In docker swarm, all communication between nodes happens throgh Trasport Layer security
True -- correct
In docker Swarm, you can define the task and container relationship as
one to one -- correct
Swarm task status when the task is initialized
New -- correct
Docker swarm command to activate a drain worker node
docker node update <worker-node>--availability=active -- correct
Assume a Swarm cluster has 7 swarm managers. system can tolerate ______ no. of failures
3 -- correct
Global service runs one task per worker node
True -- correct
Bridge network that connects hosts ports to container ports in overlay network
docker gwbridge nerwork -- correct
worker node is responsible for container Orchestration
False -- correct
Which is not valid way to configure a pending service
None of the options -- correct
Docker command to scale an existingservice by 5 instances
docker service scale servicename=5 -- correct
Swarm task is
unidirectional - correct
Which is not a correct type of service deployments for docker swarm
Series -- correct
Which is not a valid way to create a docker service
UCB web UI -- correct
Docker swarm to command to remove a service
docker service rm service-name -- correct
_____ in the worker node executes the task on behalf of the worker node
executor-- correct
No. of tokens generated when the master node is initialized in swarm
two -- correct
Docker swarm commadn to autolock swarm when initialized
docker swarm init -- autolock -- correct
when a task stops, it isn't executed again, but a new task may take its place
True -- correct
docker command to list the tasks running on a service
docker service ps <service name> -- correct
Manager node can also acts as worker node
True -- correct
Docker command to list the secrets
docker secret ls -- correct
Maximum number of task that can be executed in Drain node
0 -- correct
$docker service create --name Test --secret secret1 redis. Which of the following is incorrect w.r.t.
the optput for this command
create a redis image for a service -- correct
docker swarm command to list the tasks running on the manaher node
docker node ps self -- correct
what happens to the current task when the availability of active node is modified to drain node?
Task continues to run -- correct
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