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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which statement is true for linear regression?
A. A linear regression model can be expressd as an inner product between feature vectors and a weight vector.
B. Linear regression, when using 'usual' loss functions, works fine when the dataset contains many outliers.
C. A good fit with linear regression implies a causal relationship between inputs and outputs.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Someone in a room without any lights on, but that has mirrors in it, can still have light in that room if
A. lights are turned on in another house
B. a joined room is dark
C. the room is completely dark
D. a joined room is lit
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of the following actions qualifies as cooking food?
A. setting it in the sun
B. shaking it up and down
C. putting it in the freezer
D. running it under water
Answer: | A | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What burrows help aerate soil, which is also good for plants?
A. leaves
B. adding heat
C. Exfoliation
D. good
E. roots
F. wind
G. rocks
H. annelids
Answer: | H | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What kind of animal breathes by converting oxygen in water into oxygen in blood?
A. clams
B. hawks
C. Fish
D. Whales
E. sharks
F. humans
G. Frogs
H. toads
Answer: | C | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \textbf{true} assertion. A first preimage attack on a hash function H is \ldots
A. \ldots given $x$ find $y$ such that $H(x)=y$
B. \ldots given $x$ find $x'\neq x$ such that $H(x)=H(x')$
C. \ldots given $y$ find $x$ such that $H(x)=y$
D. \ldots find $x$ and $x'$ such that $x'\neq x$ 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.
Does AddressSanitizer prevent \textbf{all} use-after-free bugs?
A. No, because quarantining free’d memory chunks forever prevents
legit memory reuse and could potentially lead to out-of-memory
situations.
B. No, because UAF detection is not part of ASan's feature set.
C. Yes, because free’d memory chunks are poisoned.
D. Yes, because free’d memory is unmapped and accesses therefore
cause segmentation faults.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider the cipher defined using the key $K\in \{0,1\}^{64} $ by $$\begin{array}{llll} C : & \{0,1\}^{64} & \rightarrow & \{0,1\}^{64} \\ & x & \mapsto & C(x)=x \oplus K \\ \end{array} $$ Let $x=1\dots 11$, the value $\mathsf{LP}^{C_K}(x,x)$ is equal to
A. $0$
B. $1/4$
C. $1/2$
D. $1$
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What causes sediment to form?
A. soils
B. tectonic plates
C. magnets
D. water
E. rivers
F. wind
G. loose soil
H. erosion
Answer: | H | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What tends to occur when individuals move into or out of a population?
A. competing for resources
B. extinction
C. matter is destroyed
D. metabolic reaction
E. rapid exponential growth
F. seed dispersal
G. decreased differentiation
H. permineralization
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \textbf{true} assertion. Let $X,Y$ be two random variables over the same probability space. Then,
A. $X$ is always independent from $Y$.
B. $E(XY)=E(X)\times E(Y)$, if $X$ and $Y$ are independent.
C. $\Pr[X = x \, \text{and} \, Y = y ] = \Pr[X = x ] \times \Pr[Y = y]$.
D. $X+Y$ does not make sense.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The cerebellum is associated with what major human organ?
A. heart
B. brain
C. bladder
D. liver
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is a good distance metric to be used when you want to compute the similarity between documents independent of their length?A penalty will be applied for any incorrect answers.
A. Cosine similarity
B. Euclidean distance
C. Manhattan distance
D. Chi-squared distance
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is a central nervous system stimulant?
A. saccharose
B. barbiturates
C. cigarettes
D. sweating
E. muscle relaxants
F. A Greek letter
G. Decibels
H. valium
Answer: | A | 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.
What kind of animal doesn't have a respiratory or excretory system?
A. a fish
B. bears
C. ant
D. whale
E. humans
F. starfish
G. mammals
H. llama
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what can be found in raw wounds
A. bandages
B. antibiotics
C. some invertebrates
D. microorganisms
E. meat
F. one celled organisms
G. contamination
H. sensory neurons
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is another common term for single-unit smooth muscle?
A. energies muscle
B. visceral muscle
C. lateral muscle
D. abnormal muscle
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider any block cipher $C$ and a uniformly distributed random permutation $C^*$ on $\{0,1\}^\ell$. Then, for any $n \ge 1$ we always have\dots
A. $[C^* \circ C]^n = [C]^n$
B. $[C^* \circ C]^n = [C^*]^n$
C. $[C^* \circ C]^n = [C]^{2n}$
D. $[C^* \circ C]^n = [C]^n + [C^*]^n$
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Choose the \emph{incorrect} statement.
A. The key is always sent alongside the commitment.
B. Statisticaly hiding property is more desirable than computationally hiding.
C. A commitment scheme can be perfectly hiding.
D. A commitment scheme can be non-interactive.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What powers most automobiles?
A. Sunlight.
B. A finite resource.
C. Natural gas.
D. an engine
E. energy of moving objects
F. Water
G. a hydraulic system
H. transportation technology
Answer: | B | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Boundaries between air masses can cause
A. Dehydration
B. friction
C. rain or sun shine
D. permineralization
E. heat energy
F. Pollution
G. Movement
H. thunderstorms
Answer: | H | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The scientific practice of classifying organisms is also known as what?
A. terminology
B. taxodermy
C. taxonomy
D. methodology
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The tensor fascia latae acts as what, in relation to the gluteus medius and iliopsoas, for the purpose of flexing and abducting the thigh?
A. synergist
B. antagonist
C. spicule
D. symbiotic
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tropomyosin is a type of what, that winds around the chains of the actin filament and covers the myosin-binding sites to prevent actin from binding to myosin?
A. enzyme
B. amine
C. bacteria
D. protein
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are fungus like protists?
A. lichen and kelp
B. slime molds and water molds
C. water molds and mushrooms
D. slime molds and water lilies
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the angiosperm seed surrounded by?
A. uterus
B. ovary
C. cone
D. egg
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Warm water from the equator mixes with cold water from where?
A. the oceans
B. the tropics
C. the continents
D. the poles
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
faulting of rock in Earth 's crust causes what?
A. friction
B. fewer cracks
C. improved health
D. global warming
E. massive damage
F. less damage
G. permineralization
H. Movement
Answer: | E | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The “knee-jerk" motion that people involuntarily perform after being struck in the knee in a certain way is an example of what kind of behavior?
A. sensor
B. reaction
C. spasm
D. reflex
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
if two students with identical genes grow at a different pace, what could be responsible?
A. they might have different houses
B. they might have different hair types
C. they might have different clothes
D. they might have different diets
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In terms of the \textbf{bias-variance} decomposition, a 1-nearest neighbor classifier has \rule{2cm}{0.15mm} than a 3-nearest neighbor classifier.
A. higher variance
B. lower variance
C. higher bias
D. lower bias
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In Bluetooth, the link key $K_{link}$ is ...
A. used to generate an epheremal key $K_{init}$.
B. not used to generate the encryption key.
C. used to authenticate devices.
D. the input to the pairing protocol.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
An electron microscope is used for seeing things what?
A. dying
B. an image
C. Light
D. growing
E. magnified
F. tiny polyps
G. smaller
H. photons
Answer: | E | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \emph{false} assertion concerning WEP
A. In WEP, encryption is based on RC4.
B. In WEP, IVs repeat themselves too often.
C. In WEP, encryption is based on a block cipher.
D. WPA-TKIP was designed as a quick fix for WEP.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Lobsters are what kind of food source?
A. sauropod
B. arthropod
C. combination
D. mollusc
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What keeps smoke out of the respiratory system?
A. Cooking
B. Masks
C. Glasses
D. skin
E. Gloves
F. Hats
G. Urea
H. oxygen
Answer: | B | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Select the \emph{incorrect} statement. Bluetooth is
A. a short-range wireless technology.
B. designed both for data and voice transmission.
C. a standard for RFID tags.
D. able to transmit 1Mbit/sec in 10m distance.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \textbf{false} statement.
A. The identity element of $E_{a,b}$ is the point at infinity.
B. If a point is singular on an Elliptic curve, we can draw a tangent to this point.
C. $P=(x_p,y_p)$ and $Q=(x_p,-y_p)$ are the inverse of each other on an Elliptic curve of equation $y^2=x^3+ax+b$.
D. Elliptic curve cryptography is useful in public-key cryptography.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
how can garnets be formed
A. by radioactive formations
B. extreme cold and pressure
C. raw crystal formations
D. extreme heat and pressure
E. The bending of a ray of light
F. rays or beams
G. Light passing through water
H. solid, liquid, gas
Answer: | D | qasc |
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 $D=4$ then $\Gamma$ is necessarily prefix-free.
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.
Suppose that q is density reachable from p. The chain of points that ensure this relationship are {t,u,g,r} Which one is FALSE?
A. {t,u,g,r} have to be all core points.
B. p and q will also be density-connected
C. p has to be a core point
D. q has to be a border point
Answer: | D | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In the setting of EM, where $x_{n}$ is the data and $z_{n}$ is the latent variable, what quantity is called the posterior?
A. (a) $\square p\left(\mathbf{x}_{n} \mid z_{n}, \boldsymbol{\theta}\right)$
B. (b) $\square p\left(\mathbf{x}_{n}, z_{n} \mid \boldsymbol{\theta}\right)$
C. (c) $\square p\left(z_{n} \mid \mathbf{x}_{n}, \boldsymbol{\theta}\right)$
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
You share an apartment with friends.
Kitchen, living room, balcony, and bath room are shared resources among all parties.
Which policy/policies violate(s) the principle of least privilege?
A. Different bedrooms do not have a different key.
B. There is no lock on the fridge.
C. To access the kitchen you have to go through the living room.
D. Nobody has access to the neighbor's basement.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of the following statements is correct?
A. When applying stochastic gradient descent on the objective function $f(\boldsymbol{w}):=\sum_{n=1}^{30}\left\|\boldsymbol{w}-\boldsymbol{x}_{n}\right\|^{2}$ where $\boldsymbol{x}_{n}$ are the datapoints, a stochastic gradient step is roughly $30 \times$ faster than a full gradient step.
B. In practice, it could be good to let your model first overfit your task, and then apply drop-out or other regularization techniques.
C. When applying stochastic gradient descent on the objective function $f(\boldsymbol{w}):=\sum_{n=1}^{30} n \cdot\|\boldsymbol{w}\|^{2}$, a stochastic gradient (for the $n$-th summand) is given by $2 n \cdot \boldsymbol{w}$.
D. The function $f(\boldsymbol{u} ; \boldsymbol{v}):=g\left(\boldsymbol{u} \boldsymbol{v}^{\top}\right)$ is convex over the set of pairs of vectors $(\boldsymbol{u} ; \boldsymbol{v}) \in \mathbb{R}^{2} \times \mathbb{R}^{2}$, when $g: \mathbb{R}^{2 \times 2} \rightarrow \mathbb{R}$ is defined as $g(\boldsymbol{X}):=X_{12}+X_{21}$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of these things will supplement a squirrel's caloric needs?
A. fish
B. tree bark
C. nuts
D. leaves
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
During what period of the Earth cycle would you see someone having a picnic outside?
A. Day
B. Night
C. Extinction
D. Ice Age
Answer: | A | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What contain the genetic information for life but not much else?
A. plants
B. barnacles
C. parasites
D. fungi
E. alleles
F. animals
G. Viruses
H. bacteria
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
if a person takes in more food than their body needs at the time, what happens?
A. they will become smarter
B. they will become tubbier
C. they will become lighter
D. they will become shorter
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
energy is required for survival, and this is primarily delivered by
A. the moon shining at night
B. the fifth planet from the sun
C. the closest star to our planet
D. the vast ocean body
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What can form when water vapor cools?
A. Chimneys
B. Evaporation
C. chemicals
D. streams
E. Wind
F. Organic nutrients
G. Clouds
H. mildew
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \textbf{\emph{incorrect}} assertion. A $\Sigma$-protocol \dots
A. has special soundness.
B. is zero-knowledge.
C. is a 3-move interaction.
D. has the verifier polynomially bounded.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what are earthworms good for?
A. gravity
B. food
C. clouds
D. relocation
E. survival
F. daisies
G. weathering
H. vegetation
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A space exists where there is room for things with cells to propagate, so it is most likely
A. habitable
B. desolate
C. a vacuum
D. harsh
Answer: | A | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what does a rubber band snapping cause?
A. frequency wave
B. friction
C. electrically
D. h2o
E. death
F. chemical reaction
G. elastic
H. Electrical energy
Answer: | A | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A neural network has been trained for multi-class classification using cross-entropy but has not necessarily achieved a global or local minimum on the training set.
The output of the neural network is $\mathbf{z}=[z_1,\ldots,z_d]^ op$ obtained from the penultimate values $\mathbf{x}=[x_1,\ldots,x_d]^ op$ via softmax $z_k= rac{\exp(x_k)}{\sum_{i}\exp(x_i)}$ that can be interpreted as a probability distribution over the $d$ possible classes.
The cross-entropy is given by $H(\mathbf{y},\mathbf{z})=-\sum_{i=1}^{d} y_i \ln{z_i}$ where $\mathbf{y}$ is one-hot encoded meaning the entity corresponding to the true class is 1 and other entities are 0.
We now modify the neural network, either by scaling $\mathbf{x} \mapsto lpha \mathbf{x}$ where $lpha \in \R_{>0}$ or through a shift $\mathbf{x} \mapsto \mathbf{x} + b\mathbf{1}$ where $b \in \R$.
The modified $\mathbf{x}$ values are fed into the softmax to obtain the final output and the network / parameters are otherwise unchanged.
How do these transformations affect the training accuracy of the network?
A. One transformation has no effect, the other one decreases the accuracy in some cases (but never increases it).
B. One transformation has no effect, the other sometimes increases and sometimes decreases the accuracy.
C. Neither transformation affects the accuracy.
D. Both transformations decrease the accuracy in some cases (but never increase it).
E. Both transformations sometimes increase and sometimes decrease the accuracy.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Magnetism can cause what to repel each other?
A. electromagnetic energy
B. flow of electrons
C. Veins and arteries.
D. barnacles
E. solid, liquid, gas
F. an electron lens
G. real-world things
H. Electrical energy
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is connected to, and dependent on, the gametophyte?
A. the zygote
B. the chromosomes
C. the sporophyte
D. the sperm
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is an example of a petrochemical?
A. LEDs
B. NaCl
C. vinegar
D. Plastic
E. a stove
F. an object
G. gasoline
H. herbicide
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the storage form of glucose in humans and other vertebrates?
A. neurons
B. glycogen
C. fructose
D. placenta
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
_ is the breakdown of rock.
A. Weathering
B. mechanical
C. salinity
D. heat energy
E. dangerous
F. cycles
G. calcite
H. started
Answer: | A | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
How many generators do we have in a group of order $13$?
A. 13.
B. 12.
C. 6.
D. 2.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which theory states that the characteristics of living things are controlled by genes?
A. creationism
B. string theory
C. gene theory
D. order theory
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The nimbleness of this animal is a key adaption that allows it to escape attacks from predators:
A. the praying mantis
B. the antelope
C. the butterfly
D. the sloth
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Compression, tension and shear refer to what type of force that can cause rock to change?
A. gravity
B. stress
C. process
D. seismic force
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What paired organs help regulate blood pressure through sodium ion and water retention and loss?
A. tissues
B. lungs
C. lymph nodes
D. kidneys
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Using salt for UNIX passwords \ldots
A. allows to speed up the verification for the server.
B. makes the protocol secure against computationally unbounded adversary.
C. allows to transmit the password over a non confidential channel without compromising the security.
D. helps preventing dictionary attacks.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A channel protein is an example of what type of protein?
A. transport proteins
B. choice proteins
C. hemoglobin protein
D. component proteins
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider the exhaustive search of a uniformly distributed key in a set of size $N$. Think of the possible strategies and their complexities. Which of the following is \textbf{not} possible (We assume that memory access is constant.)
A. Find the key with precomputation: $0$, memory: $O(1)$, time: $O(N)$.
B. Find the key with precomputation: $O(N)$, memory: $O(N)$, time: $O(1)$.
C. Find the key with precomputation: $O(N)$, memory: $O(N^{2/3})$, time: $O(N^{2/3})$.
D. Find the key with precomputation: $0$, memory: $O(N)$, time: $O(1)$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What intensifies the response during homeostasis?
A. negative feedback loops
B. pressure loops
C. pure loops
D. positive feedback loops
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Let $f:\R^D
ightarrow\R$ be an $L$-hidden layer multi-layer perceptron (MLP) such that
\[
f(xv)=\sigma_{L+1}ig(\wv^ op\sigma_L(\Wm_L\sigma_{L-1}(\Wm_{L-1}\dots\sigma_1(\Wm_1xv)))ig),
\]
with $\wv\in\R^{M}$, $\Wm_1\in\R^{M imes D}$ and $\Wm_\ell\in\R^{M imes M}$ for $\ell=2,\dots, L$, and $\sigma_i$ for $i=1,\dots,L+1$ is an entry-wise activation function. For any MLP $f$ and a classification threshold $ au$ let $C_{f, au}$ be a binary classifier that outputs YES for a given input $xv$ if $f(xv) \leq au$ and NO otherwise. space{3mm}
Assume $\sigma_{L+1}$ is the element-wise extbf{sigmoid} function and $C_{f, rac{1}{2}}$ is able to obtain a high accuracy on a given binary classification task $T$. Let $g$ be the MLP obtained by multiplying the parameters extbf{in the last layer} of $f$, i.e. $\wv$, by 2. Moreover, let $h$ be the MLP obtained by replacing $\sigma_{L+1}$ with element-wise extbf{ReLU}. Finally, let $q$ be the MLP obtained by doing both of these actions. Which of the following is true?
ReLU(x) = max\{x, 0\} \
Sigmoid(x) = rac{1}{1 + e^{-x}}
A. $C_{g, rac{1}{2}}$ may have an accuracy significantly lower than $C_{f, rac{1}{2}}$ on $T$
B. $C_{h, 0}$ may have an accuracy significantly lower than $C_{f, rac{1}{2}}$ on $T$
C. $C_{q, 0}$ may have an accuracy significantly lower than $C_{f, rac{1}{2}}$ on $T$
D. $C_{g, rac{1}{2}}$, $C_{h, 0}$, and $C_{q, 0}$ have the same accuracy as $C_{f, rac{1}{2}}$ on $T$
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 pipettes are suitable for measuring very small amounts of liquids?
A. micropipettes
B. macropipettes
C. frozen pipettes
D. clutch pipettes
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
An echo is produced by what type of reflection of sound source?
A. Direct
B. Distant
C. Varied
D. Single
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Given the distribution $P_0$ of a normal coin, i.e. $P_0(0)=P_0(1)=\frac{1}{2}$, and distribution $P_1$ of a biased coin, where $P_1(0)=\frac{1}{3}$ and $P_1(1) = \frac{2}{3}$ , the maximal advantage of a distinguisher using a single sample is\dots
A. $\frac{1}{6}$.
B. $3$.
C. $\frac{1}{3}$.
D. $0$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \textbf{true} statement regarding $\mathsf{GF}(2^k)$.
A. Addition is performed as bitwise XOR.
B. Multiplication is performed modulo $2^k$.
C. It has order $\varphi(2^k)$.
D. Its characteristic is $k$.
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 term for the arrangement of veins in a leaf?
A. vein pattern
B. dorsal pattern
C. venation pattern
D. cerebellum pattern
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are chromosomes in the same pair called?
A. homologous chromosomes
B. regulated chromosomes
C. homogeneous chromosomes
D. reversible chromosomes
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A person playing a song on a string instrument makes strings
A. mold
B. bawl
C. tear
D. shudder
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Two bears, one weighing 200 pounds and another weighing 150 pounds are about to enter winter. The bear with the most weight will be
A. better able to fly
B. more likely to starve
C. better suited to survive
D. more likely to hurt
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When do moose begin behavior intended to attract a mate?
A. Winter
B. howling
C. The past
D. sweating
E. Summer
F. autumn
G. ligt
H. movement
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which item can be used more than once?
A. toilet paper
B. cloth pad
C. tampon
D. drugstore pad
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which is likely to be reflecting the most light?
A. a desert landscape
B. a forest landscape
C. an arctic landscape
D. a rural landscape
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Rounded grains indicate that the minerals eroded from what?
A. fossils
B. recent rock
C. earlier rock
D. iron
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
An ecosystem's what increases its productivity and stability
A. elevation
B. complexity
C. Quality of life
D. seasons
E. seasonal changes
F. Animal survival
G. trees
H. Plants growth
Answer: | B | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What breaks food into nutrients for the body?
A. Fully cooking the oysters
B. secretion of acids and bases
C. Eating and drinking
D. the most widely used biofuel
E. the stage of citokinesis
F. To conserve energy
G. Something that tapeworms do not have
H. hydration of their cells
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What causes rocks to be worn into soil
A. Fire
B. Hurricanes
C. wind
D. Air
E. dirt
F. forces
G. rivers
H. Water
Answer: | H | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what allows molecules to travel to control many cell activities
A. skin
B. heat energy
C. animal transport
D. bloodstream
E. Chemical energy
F. nasal passage
G. movement
H. fat tissue
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
If a field is planted with something that will be sold later in the refrigerated section, then that something was intended to be consumed by
A. elephants
B. toddlers
C. bears
D. bees
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 correct regarding Louvain algorithm?
A. It creates a hierarchy of communities with a common root
B. Clique is the only topology of nodes where the algorithm detects the same communities, independently of the starting point
C. If n cliques of the same order are connected cyclically with n-1 edges, then the algorithm will always detect the same communities, independently of the starting point
D. Modularity is always maximal for the communities found at the top level of the community hierarchy
Answer: | C | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What do humans do to poison the air?
A. tailoring old clothing items
B. using a plastic bottle to create a self water for a plant
C. placing plastic into big lakes
D. using old T-shirts to make a blanket
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
How many alleles control a characteristic?
A. 4
B. 8
C. 2
D. 3
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What occurs when water on the surface changes to water vapor?
A. condensation
B. photosynthesis
C. oxidation
D. evaporation
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which system transports oxygens to cells?
A. nervous system
B. circulatory system
C. vascular system
D. oxy system
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Shrews are hunted by
A. horses
B. butterflies
C. deer
D. raptors
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The bottom of the ocean is called what?
A. Final zone
B. Intertidal zone
C. Demersal zone
D. the benthic zone
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which sets are countable (Multiple answers can be correct) :
A. The set of string of finite length of first names starting with the letter P
B. The set of real numbers containing at least 100 3's in their decimal representation
C. The set of natural numbers containing at least one 3 in their decimal representation
D. \(U-C\) with \(U\) an uncountable set and \(C\) a countable set
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In linear cryptanalysis,\dots
A. one needs to do a chosen plaintext attack.
B. one studies how the differences in the input propagate in the cipher.
C. one chooses the deviant property with the smallest bias in order to optimize the attack.
D. one needs to have about $\frac{1}{LP}$ pairs of plaintext-ciphertext in order to recover the correct key, where $LP$ is the linear probability of the cipher.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Radioactive isotopes are characterized by an unstable what?
A. shell
B. electrons
C. proton
D. nuclei
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
People can touch something to see if it's
A. shiny
B. red
C. striped
D. wrinkled
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Solar cells turn sunlight directly into what?
A. cold
B. electricity
C. water
D. gas
Answer: | B | sciq |
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