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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of the following models for generating vector representations for text require to precompute the frequency of co-occurrence of words from the vocabulary in the document collection
A. LSI
B. CBOW
C. Fasttext
D. Glove
Answer: | D | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
contact between rocks over long periods of time causes rocks to be what?
A. erosion
B. Loose
C. slippery
D. loose soil
E. homogenous
F. coiled
G. imbalanced
H. threatened
Answer: | C | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When a test fails, it means that:
A. either the program under test or the test itself has a bug, or both.
B. the program under test has a bug.
C. the test is incorrect.
D. that both the program and the test have a bug.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
About how many days does it take the moon to make one orbit around the earth?
A. 21
B. 28
C. 22
D. 30
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are chemical reactions represented by?
A. carbon equations
B. liquid equations
C. chemical equations
D. nuclear equations
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is used to protect the body from acid?
A. the skin
B. tube
C. evaporation
D. a tongue
E. electricity
F. fur and fat
G. the bones
H. the mouth
Answer: | A | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
If a thing is going to be able to expand, it will require
A. nutriment
B. pipes
C. flounder
D. conversation
Answer: | A | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
An example of feeling
A. Water sitting in front of me
B. My pants against my skin
C. Plants in the sun
D. The TV turned on
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The Advanced Encryption Standard (AES) is based on arithmetics on\dots
A. $\mathrm{GF}(256)$
B. $\mathbf{Z}_{2^8}^*$
C. $\mathbf{Q}\setminus \{0\}$
D. $\mathbf{Z}_{2^8}$
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Let $\mathcal{C}$ be a binary $(5,2)$ linear code with generator matrix egin{equation*} G = egin{pmatrix} 1 &0 &1 &0 &1 \ 0 &1 &0 &1 &1 \end{pmatrix} \end{equation*} and consider a minimum-distance decoder obtained by choosing the coset leaders of the standard array of $\mathcal{C}$ so that the error probability is minimized under a binary symmetric channel with bit-flip probability $\epsilon < rac{1}{2}$. True or false: The word $00101$ is certainly not one of the coset leaders.
A. True
B. False
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider a public-key cryptosystem. Let $K_p$, $K_s$, $X$, and $Y$ be respectively the public key, private key, plaintext and ciphertext. Which assertion is \emph{always true}?
A. $Enc_{K_p}(Dec_{K_s}(X))=X$
B. $Enc_{K_s}(Dec_{K_p}(Y))=Y$
C. $Dec_{K_p}(Enc_{K_s}(Y))=Y$
D. $Dec_{K_s}(Enc_{K_p}(X))=X$
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Fusion is another nuclear process that can be used to produce energy. in this process, smaller nuclei are combined to make larger nuclei, with an accompanying release of this?
A. cells
B. mineral
C. energy
D. food
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What drives the turbine in a thermonuclear reactor?
A. magnets
B. heated oil
C. wind energy
D. heated water or steam
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Our global ecological footprint depends on resource use per person and what population factor?
A. population fluctuation
B. population decrease
C. population density
D. population sample
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What can all living things sense and respond to in their environment?
A. wind
B. sunlight
C. stimuli
D. warmth
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What type of direction does a phase change depend on?
A. humidity transfer
B. heat transfer
C. power transfer
D. weight transfer
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Cups are used to note the accurate volume of what?
A. gases
B. solids
C. ferns
D. body water
E. rain
F. liquids
G. Water
H. drinking
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What property does liquid display when it interacts with glass?
A. property of adhesion
B. property of oxidize
C. property of repulsion
D. property of diffusion
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Massive quanta, like electrons, also act like macroscopic particles—something we expect, because they are the smallest what?
A. units of matter
B. depth of matter
C. battalions of matter
D. regiments of matter
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What can cause illness?
A. a nylon cord
B. burning coal
C. a plastic bag
D. heat or cold
E. a wool sweater
F. a leather purse
G. Pesticides
H. Sulfur dioxide
Answer: | C | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which would likely be to blame for removal of habitats?
A. a zoo
B. a mall
C. a wildlife charity
D. a rabbit
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Changing levels of what substances partly explain emotional ups and downs in teens?
A. nutrients
B. hormones
C. enzymes
D. acids
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What has no backbone?
A. chimp
B. snail
C. bats
D. insects
E. monkey
F. sharks
G. coward
H. salmon
Answer: | B | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What develop inside chambers called ovaries, which originate within flowers and mature into fruits?
A. tomoxia seeds
B. trematode seeds
C. pollen seeds
D. angiosperm seeds
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Birds evolved from what type of ancestor?
A. fish
B. apes
C. reptile
D. insect
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The dam was put under much more stress after the
A. drought
B. huge rain storm
C. breakup.
D. party
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What do jellyfish give off to startle possible predators?
A. electricity
B. light
C. energy
D. plankton
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
If a sedimentary rock layer is not horizontal, what is it?
A. striated
B. igneous
C. mineralized
D. deformed
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What would need electrical energy to function?
A. The Sun
B. Grass
C. A Dyson
D. A lake
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What requires electrical energy to function?
A. lemons
B. motors
C. LEDs
D. buses
E. rocks
F. hats
G. Cars
H. PDAs
Answer: | H | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what can regrow segments that break off?
A. earthworms
B. a cuticle
C. humans
D. fish
E. barnacles
F. Most plants
G. h2o
H. roots
Answer: | A | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Stars are
A. warm lights that float
B. made out of nitrate
C. great balls of gas burning billions of miles away
D. lights in the sky
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Arteries have thinner wall layers and valves and move blood by the action of skeletal what?
A. collagen bands
B. muscle
C. hormones
D. marrow
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Select what is true about the Baum-Welch algorithm.A penalty will be applied for any incorrect answers.
A. It uses expectation maximization to estimate parameters of the Hidden Markov Model.
B. The algorithm always converges towards a global maximum of the parameters estimated.
C. The resulting parameters from the algorithm do not depend on the values the parameters are initialized with.
D. If we have few word sequences annotated with PoS tags, we can use these data to set, in a supervised manner, the initial parameters of the Baum-Welch algorithm.
E. You cannot randomly initialize the parameters of the algorithm.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what is formed by deposition?
A. h2o
B. oceans
C. Sediment
D. soft soil
E. calcite
F. clouds
G. cave roofs
H. Sand dollars
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What does potassium do for plants?
A. Helps them pollinate
B. Helps them grow
C. duplicate itself
D. hydrate their cells
E. Makes them taste better
F. hydrogen and oxygen
G. Decrease bodily water
H. Kills them
Answer: | B | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In which part of a bird stomach is food stored, soaked and mechanically ground?
A. gizzard
B. pancreas
C. Gall bladder
D. digestion
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
You are given a distribution on $X, Y$, and $Z$ and you know that the joint distribution can be written in the form $p(x, y, z)=p(x) p(y \mid x) p(z \mid y)$. What conclusion can you draw? [Recall that $\perp$ means independent and $\mid \cdots$ means conditioned on $\cdots$.
A. $Y \perp Z$
B. $X \perp Y \mid Z$
C. $Y \perp Z \quad X$
D. $X \perp Z$
E. $X \perp Y$
F. $X \perp Z \quad \mid Y$
Answer: | F | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Retinas can have light fall on them when
A. pupils are open
B. rooms are dark
C. eyes are closed
D. lights are off
Answer: | A | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are the only living organisms that can make their own food?
A. animals
B. bacteria
C. plants
D. protozoa
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Looking at what object could have a negative impact on the eyes?
A. sun's heat
B. squids
C. heat
D. Betelgeuse
E. Polaris
F. Light
G. The Sun
H. The Moon
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what does friendship usually precede?
A. competition
B. the body's largest organ
C. A Greek letter
D. birth
E. death
F. attracting a mate
G. firm hugs
H. h2o
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The chloroplasts contained within the green algal endosymbionts still are capable of what process associated with plants?
A. photosynthesis
B. respiration
C. germination
D. reproduction
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of the following elements belong to $\mathbf{Z}_{35}^*$?
A. $12$.
B. $20$.
C. $14$.
D. $15$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Our task is to classify whether an animal is a dog (class 0) or a cat (class 1) based on the following features:
egin{itemize}
\item $x_1$: height
\item $x_2$: length of whiskers
\item $x_3$: thickness of fur
\end{itemize}
We perform standard normal scaling on the training features so that they have a mean of zero and standard deviation of 1. We have trained a Logistic Regression model to determine the probability that the animal is a cat, $p(1 | \mathbf{x,w})$.
Our classifier learns that cats have a lower height and longer whiskers than dogs, while the thickness of fur is not relevant to the classification outcome. Which of the following is true about the weights~$\wv$ learned by the classifier?
A. $w_1 < w_2 < w_3$
B. $w_1 < w_3 < w_2$
C. $w_2 < w_1 < w_3$
D. $w_2 < w_3 < w_1$
E. $w_3 < w_1 < w_2$
F. $w_3 < w_2 < w_1$
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Select the \emph{incorrect} statement.
A. The non-deterministic encryption can encrypt one plaintext into many ciphertexts.
B. The non-deterministic encryption always provides perfect secrecy.
C. Plain RSA encryption is deterministic.
D. ElGamal encryption is non-deterministic.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A creature that is incapable of giving birth to offspring that are living as they exit is the
A. bear
B. human
C. beaver
D. salamander
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Materials, such as iron, that exhibit strong magnetic effects are labeled what?
A. ultramagnetic
B. superconducting
C. ferromagnetic
D. paramagnetic
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
wings are part of the exoskeleton and attached where?
A. on the feet
B. objects that have mass
C. in front of the head
D. an organism's body
E. Earth orbiting the Sun
F. behind the head
G. layers of fat
H. on the face
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
_ can cause infections to grow.
A. Pesticides
B. bacteria
C. influenza
D. nitric oxide
E. disease
F. carbon dioxide
G. moisture
H. oxygen
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the result of an object reflecting light toward the eye?
A. Being blurred
B. Being Seen
C. Blindness
D. Glare
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of the following is WRONG about inverted files? (Slide 24,28 Week 3)
A. The space requirement for the postings file is O(n)
B. Variable length compression is used to reduce the size of the index file
C. The index file has space requirement of O(n^beta), where beta is about 1⁄2
D. Storing differences among word addresses reduces the size of the postings file
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider a classification problem using either SVMs or logistic regression and separable data. For logistic regression we use a small regularization term (penality on weights) in order to make the optimum welldefined. Consider a point that is correctly classified and distant from the decision boundary. Assume that we move this point slightly. What will happen to the decision boundary?
A. Small change for SVMs and small change for logistic regression.
B. No change for SVMs and large change for logistic regression.
C. No change for SVMs and no change for logistic regression.
D. No change for SVMs and a small change for logistic regression.
E. Large change for SVMs and large change for logistic regression.
F. Large change for SVMs and no change for logistic regression.
G. Small change for SVMs and no change for logistic regression.
H. Small change for SVMs and large change for logistic regression.
I. Large change for SVMs and small change for logistic regression.
Answer: | D | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What term describes a drug that has an effect on the central nervous system?
A. elemental drug
B. steroidal drug
C. nonaddictive drug
D. psychoactive drug
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Heavier isotopes of plutonium are also produced when lighter plutonium nuclei capture what?
A. molecules
B. protons
C. electrons
D. neutrons
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are the two main types of diabetes?
A. type 1, type 2
B. type 0, 1
C. type a, b
D. type 3, 4
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The needed number of DES operations to attack DES is about ...
A. $2^{54}.$
B. $2^{64}.$
C. $2^{128}.$
D. $2^{256}.$
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider a source $S$ with some distribution $P_S$ over the alphabet $\mathcal{A} = \{a, b, c, d, e, f\}$. Consider the following encoding $\Gamma$ over a code alphabet $\mathcal{D}$ of size $D$ with the following codeword lengths: egin{center} egin{tabular}{ |c|c|c|c|c|c|c| } \hline & $a$ & $b$ & $c$ & $d$ & $e$ & $f$ \ \hline $l(\Gamma(\cdot))$ & 1 & 1 & 1 & 2 & 2 & 4 \ \hline \end{tabular} \end{center} True or false: If $D=2$ there exists a uniquely-decodable code with the same lengths of $\Gamma$.
A. True
B. False
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What do some worms do to their hosts?
A. Copy them
B. reproduce
C. Play with them
D. harm them
E. Show them things
F. Kill them
G. migrate
H. Damages them
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What could Out of Vocabulary (OoV) forms consist of? Select all that apply.A penalty will be applied for wrong answers.
A. Words from the lexicon
B. Words borrowed from other languages
C. Words with spelling errors
D. Neologisms
E. Abbreviations
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the mean squared error of $f$ for a sample, where $\textbf{x}$ is an input, $y$ a target and $f(\textbf{x},W)$ the mapping function ?
(One answer)
A. $||y - f(\textbf{x},W)||^2 $
B. $||y - f(\textbf{x},W)|| $
C. $-\log(P(y=i | \textbf{x})) = -\log(\frac{e^{\textbf{f}_i(\textbf{x},W)}}{\sum_j e^{\textbf{f}_j(\textbf{x},W)}})$
D. $P(y=i |\textbf{x}) = \frac{e^{\textbf{f}_i(\textbf{x},W)}}{\sum_j e^{\textbf{f}_j(\textbf{x},W)}}$
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What prevents conduction?
A. water
B. sweating
C. glass
D. layers of fat
E. wind
F. insulator
G. a cuticle
H. conductor
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In eukaryotic cells, where is the dna kept?
A. epidermis
B. mitochondria
C. nucleus
D. cytoplasm
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The part of a plant that is responsible for reproduction is the?
A. flower
B. root
C. stem
D. leaf
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
To get a lab experiment right you need to
A. use all dirty equipment
B. fully comprehend the instructions before starting
C. do the opposite of what you're supposed to do
D. instead of measuring things, make guesses
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When you exit a dark film theater, the world
A. looks darker
B. looks brighter
C. looks the same
D. looks more French
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A Feistel scheme is used in\dots
A. DES
B. AES
C. FOX
D. CS-Cipher
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What body system allows humans to move?
A. abnormal system
B. muscular system
C. digestive system
D. lung system
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Jerry noticed that his dog was leaving a lot more fur on his couch than he did a month earlier. That might be because
A. the seasons are changing from fall to winter
B. the dog is a hairless breed
C. the seasons are changing from winter to spring
D. the moon is full
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What percentage of men suffer from some form of erectile dysfunction by age 40?
A. approximately 40 percent
B. approximately 10 percent
C. approximately 60 percent
D. approximately 80 percent
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Monoecious flowers are also known as “perfect” flowers because they contain both types of what organ?
A. respiratory organ
B. sex organ
C. phloem
D. vascular organ
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What live just about everywhere?
A. They have thick fur
B. bats and elephants
C. crocodiles and narwhals
D. rhinos and deer
E. trees and flowers
F. biological diversity
G. with their fur
H. barks and snarls
Answer: | E | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is a source of energy for animals?
A. grains
B. air
C. space
D. sunlight
Answer: | A | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Your aim is to evaluate a Tweet analysis system, the
purpose of which is to detect whether a tweet is offensive. For each Tweet processed, such a system outputs one of the following classes: "hateful",
"offensive" and "neutral".To perform your evaluation, you
collect a large set of Tweets and have it annotated by two human
annotators. This corpus contains 1% of "hateful" and 4% of
"offensive" Tweets.What metrics do you think are appropriate to evaluate such a system?(penalty for wrong ticks)
A. Cohen's kappa
B. accuracy
C. precision
D. recall
E. standard deviation
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A hash function $h$ is collision-resistant if\dots
A. \dots given $y$, it is hard to find $x$ such that $h(x)=y$
B. \dots given $x$, it is hard to find $y$ such that $h(x)=y$
C. \dots given $x$, it is hard to find $x' \ne x$ such that $h(x)=h(x')$
D. \dots it is hard to find $x,x'$ such that $x \ne x'$ and $h(x) = h(x')$
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
at least some deuterostomes use pheromones to do what?
A. attack prey
B. seed dispersal
C. share properties
D. deuterostome with each other
E. not communicate
F. Release energy
G. mate with females
H. communicate with each other
Answer: | H | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Let $S_{0},S_{1},S_{2},\dots$ be an infinite sequence produced by a source $\mathcal{S}$. All $S_{n}$ take values in $\{0,1\}$, and $S_{n+1}$ depends only on $S_n$, that is, $p_{S_{n+1} | S_0, \dots, S_n}(s_{n+1} | s_0, \dots, s_n) = p_{S_{n+1} | S_n}(s_{n+1} | s_n)$. The probability $p_{S_{n+1}|S_{n}}$ is schematically represented in the graph below: egin{center} ikzset{ state/.style = { draw, circle, minimum size = 20pt, font = ontsize{12}{12}\selectfont, } } egin{tikzpicture}[> = latex]
ode[state] (a) {$0$};
ode[state, right of = a] (b) {$1$}; \path[->] (a) edge[bend left, above] node {$1/2$} (b); \path[->] (a) edge[loop left] node {$ rac{1}{2}$} (); \path[->] (b) edge[bend left, below] node {$1/4$} (a); \path[->] (b) edge[loop right] node {$ rac{3}{4}$} (); \end{tikzpicture} \end{center} For instance, the edge from $0$ to $1$ means that $p_{S_{n+1}|S_{n}}(1|0) = rac{1}{2}$. We also have that $p_{S_0}(0)=1$. True or false: For every $n\geq 0$, $H(S_n|S_0,\ldots,S_{n-1})
eq H(S_n|S_{n-1}) $.
A. True
B. False
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Let $E$ be an elliptic curve. Solving which of the following problems would help you to break Elliptic Curve Diffie-Hellman (ECDH) over $E$?
A. Let $P,R \in E$. Given $P$ and $P+R$, compute $R$.
B. Let $P,Q \in E$. Given $P$ and $Q$, compute the product between $P$ and $Q$, i.e., $P \times Q$.
C. Let $P \in E$ and $\ell \in \mathbb{N}$. Given $P$ and $\ell P$, compute $\ell$.
D. Find a point which is not on the curve $E$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is never lost and just changes forms?
A. life
B. fuel
C. energy
D. food
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When flagellated sperm must swim to the egg, sexual reproduction requires the presence of what substance?
A. sunshine
B. nitrogen
C. water
D. air
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what increases when fossil fuels are burned?
A. Greenhouse gasses
B. Greenhouse gases
C. cancer
D. wood ash
E. atmospheric warming
F. coal
G. heat energy
H. Temperature
Answer: | E | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the term for the fast-moving air currents high in the troposphere?
A. global winds
B. gale force winds
C. ocean streams
D. jet streams
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Breaking a vase changes its
A. center of gravity
B. shape and mass
C. chemical composition
D. speed
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is part of the kidney structure?
A. thorax
B. glomerulus
C. organ
D. arteries
E. layers of fat
F. more abundant
G. pancreas
H. urine
Answer: | B | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Using a 4-gram character model, comparing "banana" and "ananas"...
A. is the same as comparing "aaabnn" to "aaanns"
B. is the same as comparing P(bana) to P(anas)
C. is the same as comparing P(bana) to P(anan)
D. is the same as comparing P(ban)/P(an) to P(nas)/P(na)
E. None of the others
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Let $E$ be an elliptic curve. Solving which of the following problems would help you to break Elliptic Curve Diffie-Hellman (ECDH) over $E$?
A. Let $P,R \in E$. Given $P$ and $P+R$, compute $R$.
B. Let $P,Q \in E$. Given $P$ and $Q$, compute the product between $P$ and $Q$, i.e., $P \times Q$.
C. Let $P \in E$ and $\ell \in \mathbb{N}$. Given $P$ and $\ell P$, compute $\ell$.
D. Find a point which is not on the curve $E$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \emph{false} assertion concerning WPA-TKIP.
A. WPA-TKIP uses a fixed RC4 key.
B. WPA-TKIP avoids replay attacks using a counter.
C. WPA-TKIP provides much more confidentiality than WEP.
D. WPA-TKIP doesn't protect well the integrity of the messages.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What kind of material that might otherwise go to a landfill can serve as the source of biomass power?
A. reactive waste
B. microscopic waste
C. mechanical waste
D. organic waste
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The paired bones of the skull are the palatine, zygomatic, nasal, lacrimal, inferior nasal conchae bones, and what else?
A. maxilla
B. elongated
C. ventral
D. minilla
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which statement about extit{black-box} adversarial attacks is true:
A. They require access to the gradients of the model being attacked.
B. They are highly specific and cannot be transferred from a model which is similar to the one being attacked.
C. They cannot be implemented via gradient-free (e.g., grid search or random search) optimization methods.
D. They can be implemented using gradient approximation via a finite difference formula.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are steroid hormones made of?
A. amino acid
B. lipids
C. water
D. organisms
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Where does most of the mass for an atom reside?
A. protons
B. nucleus
C. neutrons
D. electrons
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
mosquitoes can do what with microorganisms
A. motility
B. reproduce
C. spread
D. filter
E. eat
F. kill
G. disease
H. mitosis
Answer: | C | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Puberty leads to sexual changes that travel throughout the body in what?
A. blood
B. A drug.
C. hair
D. sleep
E. painful
F. years
G. eyes
H. chest
Answer: | A | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Marine animals find these to be a great source of food:
A. grain
B. nutrient
C. sponges
D. Energy.
E. sea vents
F. sodium
G. Energy
H. fungi
Answer: | C | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider the loss function $L: \R^d o \R$, $L(\wv) = rac{eta}{2}\|\wv\|^2$, where $eta > 0$ is a constant. We run gradient descent on $L$ with a stepsize $\gamma > 0$ starting from some $\wv_0
eq 0$. Which of the statements below is true?
A. Gradient descent converges to the global minimum for any stepsize $\gamma > 0$.
B. Gradient descent with stepsize $\gamma = rac{2}{eta}$ produces iterates that diverge to infinity ($\|\wv_t\| o \infty$ as $t o \infty$).
C. Gradient descent converges in two steps for $\gamma = rac{1}{eta}$ (i.e., $\wv_2$ is the extbf{first} iterate attaining the global minimum of $L$).
D. Gradient descent converges to the global minimum for any stepsize in the interval $\gamma \in ig( 0, rac{2}{eta}ig)$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A passive adversary can \ldots
A. do nothing.
B. only listen to communications.
C. only interfere with client or server communications.
D. only replace some communication messages by others.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
We consider a classification problem on linearly separable data. Our dataset had an outlier---a point that is very far from the other datapoints in distance (and also far from margins in SVM but still correctly classified by the SVM classifier).
We trained the SVM, logistic regression and 1-nearest-neighbour models on this dataset.
We tested trained models on a test set that comes from the same distribution as training set, but doesn't have any outlier points.
For any vector $ v \in \R^D$ let $\| v\|_2 := \sqrt{v_1^2 + \dots + v_D^2}$ denote the Euclidean norm. The hard-margin SVM problem for linearly separable points in $\R^D$ is to minimize the Euclidean norm $\| \wv \|_2$ under some constraints.
What are the additional constraints for this optimization problem?
A. $y_n \ww^ op x_n \geq 1 ~ orall n \in \{1,\cdots,N\}$
B. $\ww^ op x_n \geq 1 ~ orall n \in\{1,\cdots,N\}$
C. $y_n + \ww^ op x_n \geq 1 ~ orall n \in \{1,\cdots,N\}$
D. $ rac{y_n}{\ww^ op x_n }\geq 1 ~ orall n \in \{1,\cdots,N\}$
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the name for the inner lining of the uterus?
A. the endometrium
B. cuticle
C. the uterine shell
D. the epidermis
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The Fermat Test outputs `maybe prime' with probability which may be high given though $n$ is composite when ...
A. $n$ is an even composite.
B. $n$ is a Fermat number.
C. $n$ is the multiplication of two primes.
D. $n$ is a Carmichael number.
Answer: | A | m1_preference |
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