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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Your aim is to evaluate a movie review analysis system, the purpose of which is to determine whether a review is globally positive or negative.
For each movie review, such a system outputs one of the following classes: positive and negative.
To perform your evaluation, you collect a large set of reviews and have it annotated by two human annotators. This corpus contains 95% of negative reviews (this 95% ratio is for this first question only and may change in the next
questions).
What metrics do you think are appropriate to evaluate the system on this corpus?
You will get a penalty for wrong ticks.
A. Cohen's kappa
B. accuracy
C. precision
D. recall
E. standard deviation
F. F1-score
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 process where sperm from the pollen of one flower fertilizes the egg of another flower?
A. inter-pollination
B. mitosis
C. cross-pollination
D. static pollination
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When a bacteria is in a resting state, where can you find it?
A. Cooking
B. the skin
C. vegetation
D. In soil
E. an object
F. loose dirt
G. alveoli
H. lungs
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What do earthworms mix?
A. roots
B. rocks
C. soil
D. nitrogen
E. ocean
F. Carbon
G. Crops
H. well
Answer: | C | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what produces electricty by burning?
A. cactuses
B. ethanol
C. engines
D. cigars
E. organisms
F. cigarettes
G. Conifers
H. ferns
Answer: | B | qasc |
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.
What is the name of the scientist who named neutrinos?
A. Gibbs
B. Schrodinger
C. Einstein
D. enrico fermi
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What uses semiochemicals in urine to mark territory?
A. koalas
B. bacteria
C. humans
D. dogs
E. bears
F. cats
G. the Sun
H. rabbit
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The effects of which kind of selection are larger than the effects of direct natural selection on individuals?
A. unnatural selection
B. kin selection
C. topical selection
D. stranger selection
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is necessary for organisms to survive in the deepest parts of the ocean?
A. adaptations
B. mutation
C. reflexes
D. competition
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When a cooler object touches a warmer object it
A. electrically
B. flow of electrons
C. heat energy
D. energizes molecules
E. breaks down particles
F. solid, liquid, gas
G. removes heat
H. enables magnetism
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A diploid cell contains two sets of what?
A. ribosomes
B. neutrons
C. atoms
D. chromosomes
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Heavy metals are _.
A. emissions
B. dangerous
C. bent
D. homogenous
E. antigens
F. vehicles
G. fossil fuels
H. heat energy
Answer: | E | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Osseous tissue - the connective tissue that includes specialized cells, mineral salts, and collagen fibers - makes up what?
A. spine
B. bone
C. ligaments
D. muscles
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the encryption of the word ``SECRECY'' under the Vigen\`ere cipher using the key ``ZAB''?
A. ``REDQEDX''
B. ``RDDQEDX''
C. ``REDQEKX''
D. ``REDUEDX''
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Let p(x,y) be the statement “x visits y”, where the domain of x consists of all the humans in the world and the domain of y consists of all the places in the world. Use quantifiers to express the following statement: There is a place in the world that has never been visited by humans.
A. ∃y ∀x ¬p(x,y)
B. ∀y ∃x ¬p(x,y)
C. ∀y ∀x ¬p(x,y)
D. ¬(∀y ∃x ¬p(x,y))
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Personal protection equipment is essential when
A. experimenting with volatile and vaporous liquids
B. dumping lab rats in the incinerator
C. interfacing with tenured professors
D. wearing a sports cup
Answer: | A | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Where is the name of a habitat where a variety of ocean organisms often seek food and shelter?
A. gastropod shells
B. body water
C. seaweed
D. more abundant
E. whale
F. coastlines
G. algae
H. patch reefs
Answer: | H | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
KEM \dots
A. stands for Keyless Encryption Mechanism.
B. is a Korean encryption mechanism.
C. is a symmetric-key algorithm.
D. is a public-key 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 divided during cytokinesis?
A. cytoplasm
B. nucleus
C. cytoskeleton
D. chromosomes
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \textbf{false} statement. GSM anonymity is broken by ...
A. replaying an A3 challenge.
B. desynchronizing the mobile station and the network.
C. using A5/1.
D. sniffing the very first connection protocol.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Platelets play a role in what cascade of reactions that converts plasma fibrinogen to fibrin?
A. bleeding
B. hemophilia
C. sickle cell anemia
D. blood clotting
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Vesicular transport includes exocytosis and what?
A. phagocytosis
B. endocytosis
C. meiosis
D. metastasis
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
You are given an i.i.d source with symbols taking value in the alphabet $\mathcal{A}=\{a,b,c,d\}$ and probabilities $\{1/8,1/8,1/4,1/2\}$. Consider making blocks of length $n$ and constructing a Huffman code that assigns a binary codeword to each block of $n$ symbols. Choose the correct statement regarding the average codeword length per source symbol.
A. It is the same for all $n$.
B. It strictly decreases as $n$ increases.
C. None of the others.
D. In going from $n$ to $n+1$, for some $n$ it stays constant and for some it strictly decreases.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Hazardous waste is material that is toxic, chemically active, corrosive, or what?
A. inactive
B. organic
C. decomposed
D. flammable
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \textbf{incorrect} assertion.
A. ECDSA uses elliptic curves.
B. PKCS\#1v1.5 uses plain RSA as an internal routine.
C. An ECDSA signature consists in the message and a pair of elements in $\mathbb{Z}_n$.
D. Subtraction is hard to perform on an elliptic curve.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Atomic emission spectra are produced when excited electrons return to what state?
A. orbital state
B. side state
C. work state
D. ground state
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Under certain conditions, maximizing the log-likelihood is equivalent to minimizing mean-squared error for linear regression. The mean-squared error can be defined as $\mathcal{L}_{m s e}(\mathbf{w}):=$ $\frac{1}{2 N} \sum_{n=1}^{N}\left(y_{n}-\widetilde{\mathbf{x}}_{n}^{\top} \mathbf{w}\right)^{2}$ and $y_{n}=\widetilde{\mathbf{x}}_{n}^{\top} \mathbf{w}+\varepsilon_{n}$ is assumed for the probabilistic model. Which of following conditions is necessary for the equivalence?
A. The noise parameter $\varepsilon_{n}$ should have a normal distribution.
B. The target variable $y_{n}$ should have a normal distribution.
C. The i.i.d. assumption on the variable $\mathbf{w}$.
D. The conditional probability $p\left(y_{n} \mid \widetilde{\mathbf{x}}_{n}, \mathbf{w}\right)$ should follow a Laplacian distribution.
E. The noise parameter $\varepsilon_{n}$ should have non-zero mean.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Subducting plate and epicenter are terms related to what phenomenon?
A. eruption
B. earthquake
C. hurricane
D. tidal wave
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The presence of what stratospheric gas layer decreases the frequency of skin cancer and other damaging effects of ultraviolet radiation?
A. plasma
B. smog
C. ozone
D. cumulonimbus
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the default block size for a traditional file system, e.g. ext3/4?
A. 32 bits
B. 32 bytes
C. 512 bits
D. 512 bytes
E. 4096 bits
F. 4096 bytes
Answer: | F | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In which of the following cases does the TLB need to be flushed?
A. Inserting a new page into the page table for a user-space application.
B. Deleting a page from the page table.
C. Changing the read/write permission bit in the page table.
D. Inserting a new page into the page table for kernel.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Epiphytes can eventually lead to the production of what?
A. iron
B. plastic
C. paper
D. food
E. steel
F. bushes
G. plants
H. flowers
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. MAC is \ldots
A. \ldots a computer.
B. \ldots the name of a dish with chili.
C. \ldots a Message Authentication Code.
D. \ldots the encryption of KEY with the Ceasar cipher.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The passenger pigeon, the dodo bird, and the woolly mammoth represent individual cases of what fate?
A. accumulation
B. extinction
C. isolation
D. compression
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \textit{correct} assertion.
A. In a finite field $K$, every element has exactly two square roots.
B. In a finite field $K$, 1 has exactly one square roots and it is 1.
C. The set of quadratic residues in $\mathbb{Z}_n$ is a field.
D. An element can have more than two square roots in $\mathbb{Z}_n$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A man had a car that only could travel for thirteen miles for every gallon of gasoline. His new car can travel forty miles for each gallon of gasoline. A trip that is fifty miles away will now require
A. the same amount of gas
B. various amounts of gas
C. more gas than before
D. less gas than before
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
a soil in a village seems to be nutrient deficient, what might have happened?
A. the soil is angry
B. the soil has been taken over by dogs
C. the gods are angry
D. there has been too much cultivation
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What does a prism split light into
A. windows
B. elements
C. energy
D. colors
E. power
F. fragments
G. photons
H. Joules
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \textbf{true} assertion. Assume an arbitrary $f:\{0,1\}^p \rightarrow \{0,1\}^q$, where $p$ and $q$ are integers.
A. $\mathsf{DP}^f(a,b)=\displaystyle\Pr_{X\in_U\{0,1\}^p}[f(X\oplus a)\oplus f(X)\oplus b=1]$, for all $a \in \{0,1\}^p$, $b \in \{0,1\}^q$.
B. $\Pr[f(x\oplus a)\oplus f(x)\oplus b=0]=E(\mathsf{DP}^f(a,b))$, for all $a, x \in \{0,1\}^p$, $b \in \{0,1\}^q$.
C. $2^p\mathsf{DP}^f(a,b)$ is odd, for all $a \in \{0,1\}^p, b \in \{0,1\}^q$.
D. $\displaystyle\sum_{b\in\{0,1\}^q} \mathsf{DP}^f(a,b)=1$, for all $a \in \{0,1\}^p$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Solid balls of water and dust falling from the sky are known as?
A. hail
B. rain
C. golf balls
D. snow
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What have no backbone?
A. insects
B. mammals
C. arthropods
D. humans
E. barnacles
F. fur seals
G. graptolites
H. bears
Answer: | C | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A MAC forgery is\dots
A. a valid pair $(X,c)$ produced by the adversary.
B. a valid pair $(X,c)$ produced by the MAC issuer.
C. a valid pair $(X,c)$ produced by the MAC verifier.
D. a key recovery attack.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When a rock is altered by heat from a nearby magma, what occurs?
A. form metamorphism
B. contact metamorphism
C. evaporation
D. sublimation
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is energy used for in architects' creations?
A. energy
B. warmth
C. destruction
D. Light
E. windows
F. images
G. heating
H. wind
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which would damage the eyes the most in a laboratory setting without protection?
A. a stray cat
B. an acidic spray
C. a chainsaw
D. your thumb
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Mendelian inheritance has its physical basis in the behavior of what?
A. prokaryotes
B. animals
C. chromosomes
D. ribosomes
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What evolutionary concept characterizes a species by body shape and other structural features?
A. geologic species concept
B. morphological species concept
C. primary speciation
D. spontaneous evolution theory
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The process in which organ systems work to maintain a stable internal environment is called what?
A. consciousness
B. homeostasis
C. ketosis
D. thrombosis
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What period starts after the baby is born, and the placenta is expelled from the body?
A. fetal
B. postpartum
C. postfetal
D. traumatic
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A person who is paid to learn about scientific things would spend most of their time
A. at home
B. sight seeing
C. viewing things
D. on vacation
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When the body is hot, the skin accumulates what?
A. heat energy
B. nutrients
C. disease
D. heat
E. hair
F. moisture
G. evaporation
H. health
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which theory explains how materials can collide and become new materials?
A. disturbance theory
B. collision theory
C. pileup theory
D. rupture theory
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the place called where the axon of one neuron meets the dendrite of another?
A. apoptosis
B. uptake
C. synapse
D. neurotransmitter
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
All proteins are made of monomers called what?
A. monotides
B. aminotides
C. peptides
D. amino acids
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What were the first vertebrates to evolve?
A. shark
B. trees
C. snail
D. fish
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Sound can be used for communication by
A. creatures
B. plants
C. water
D. planets
Answer: | A | openbookqa |
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.
What is the term for the gases that surround a planet?
A. galaxy
B. hemisphere
C. biosphere
D. the atmosphere
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
KEM \dots
A. stands for Keyless Encryption Mechanism.
B. is a Korean encryption mechanism.
C. is a symmetric-key algorithm.
D. is a public-key algorithm.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What helps stop cells multiplying in cancer?
A. the skin
B. Honey
C. sweating
D. Chemotherapy
E. H2O
F. Chemical energy
G. Titanium
H. bioaerosols
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A model predicts $\mathbf{\hat{y}} = [1, 0, 1, 1, 1]$. The ground truths are $\mathbf{y} = [1, 0, 0, 1, 1]$.
What is the accuracy?
A. 0.5
B. 0.75
C. 0.8
D. 0.875
Answer: | C | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
How does matrix factorization address the issue of missing ratings?
A. It uses regularization of the rating matrix
B. It performs gradient descent only for existing ratings
C. It sets missing ratings to zero
D. It maps ratings into a lower-dimensional space
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Daemons are just long running processes. When applying mitigations to these
processes, several aspects change. Which ones?
A. ASLR becomes less effective as multiple requests across
different users are handled in a single process.
B. Stack canaries become less effective as multiple requests are
handled by the same thread.
C. DEP becomes less effective as compiler optimizations are
turned on, allowing the attacker to inject new code.
D. CFI becomes less effective as the concurrent clients cause
more targets to be available.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
You are using a 3-layer fully-connected neural net with \textbf{ReLU activations}. Your input data has components in [0, 1]. \textbf{You initialize your weights by sampling from $\mathcal{N}(-10, 0.1)$ (Gaussians of mean -10 and variance 0.1)}, and set all the bias terms to 0. You start optimizing using SGD. What will likely happen?
A. The gradient is 0 so nothing happens
B. The gradient is very large so the model can't converge
C. Training is fine, but our neural net does only as well as a linear model
D. Everything is fine
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what does the digestive system break food into for the body?
A. sugar
B. fatty
C. iron
D. lipids
E. edible
F. liquid
G. matter
H. Energy
Answer: | C | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Louis Pasteur found a way to
A. make food tasty
B. make food healthier
C. make food wet
D. make food green
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
which are required for animal survival?
A. hydrogen and oxygen
B. Chemical energy
C. oxygen and methane
D. critical organs
E. sense organs
F. hydrogen and helium
G. light and dark
H. Organic compounds
Answer: | A | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In User-Based Collaborative Filtering, which of the following is TRUE?
A. Pearson Correlation Coefficient and Cosine Similarity have the same value range and return the same similarity ranking for the users.
B. Pearson Correlation Coefficient and Cosine Similarity have different value ranges and can return different similarity rankings for the users
C. Pearson Correlation Coefficient and Cosine Similarity have different value ranges, but return the same similarity ranking for the users
D. Pearson Correlation Coefficient and Cosine Similarity have the same value range but can return different similarity rankings for the users
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of the following converts electrical energy into noise?
A. a light bulb
B. organ
C. a motor
D. a doorbell
E. a generator
F. vehicles
G. sensory neurons
H. engines
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Living things get energy from food in a process called respiration, which releases what gas back into the atmosphere?
A. hydrogen
B. carbon dioxide
C. oxygen
D. nitrogen
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
An omnivore, such as a bear, will have many animals that are
A. cuddling with it
B. hungry for it
C. consuming it
D. fearful of it
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The hamstrings flex the leg, whereas the quadriceps femoris have what effect?
A. contract
B. stabilize
C. no effect
D. extend
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Visual cryptography is a nice visual application of \ldots
A. \ldots the Vigen\`ere cipher.
B. \ldots the Vernam cipher.
C. \ldots the Caesar cipher.
D. \ldots ROT13.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Select \emph{incorrect} statement. Generic attacks on DES include
A. time memory tradeof against 2 key Triple DES.
B. collision attack against 3 key Triple DES.
C. meet in the middle attack against 3 key Triple DES.
D. known plaintext attack by Van Oorschot-Wiener agains 2 key Triple DES.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
This determines whether an object will sink or float:
A. density
B. displacement
C. energy
D. sun's heat
E. phase
F. heat
G. swim
H. forces
Answer: | A | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What can be thought of as the fundamental unit of life?
A. ion
B. electron
C. cell
D. atom
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider optimizing a matrix factorization $\boldsymbol{W} \boldsymbol{Z}^{\top}$ in the matrix completion setting, for $\boldsymbol{W} \in \mathbb{R}^{D \times K}$ and $\boldsymbol{Z} \in \mathbb{R}{ }^{N \times K}$. We write $\Omega$ for the set of observed matrix entries. Which of the following statements are correct?
A. Given any $\Omega$, for $K:=\min \{N, D\}$, there is an exact solution to the problem.
B. In general, a step of $\mathrm{SGD}$ will change all entries of the $\mathbf{W}$ and $\mathbf{Z}$ matrices.
C. Adding a Frob-norm regularizer for $\boldsymbol{W}$ and $\boldsymbol{Z}$ to the matrix factorization objective function makes the objective convex.
D. A step of alternating least squares is more costly than an SGD step.
E. For complete observations $\Omega=[1 \ldots D] \times[1 \ldots N]$, the problem can be solved by the singular value decomposition.
F. The cost of an SGD step depends on the number of observed entries.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
vertebrates have a complete digestive system and a what?
A. Veins and arteries.
B. lack of backbone
C. bruised brain stem
D. critical organs
E. closed circulatory system
F. incomplete circulatory system
G. characteristics
H. sensory neurons
Answer: | E | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What can cause objects to change shape?
A. Pulleys
B. a prism
C. Machines
D. Heat energy
E. Animals
F. mechanical
G. Lifts
H. Temperature
Answer: | C | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which one of these ciphers does achieve perfect secrecy?
A. RSA
B. Vernam
C. DES
D. FOX
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are interferons?
A. pathogens
B. oncogenes
C. T cells
D. cytokines
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Soil erosion is a natural process, but what can increase it unnaturally?
A. animal activies
B. volcanic eruption
C. human activities
D. human preservation
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What does cartilage lack compared to bones, making it softer and less rigid?
A. protein
B. calcium
C. potassium
D. magnesium
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Let $n$ be an integer such that $n\geq 2$ and let $A \in \R^{n imes n}$, and $xv \in \R^n$, consider the function $f(xv) = xv^ op A xv$ defined over $\R^n$. Which of the following is the gradient of the function $f$?
A. $2 xv^ op A$
B. $2Axv$
C. $A^ op xv + Axv$
D. $2A^ op xv$
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Why is the root cap continuously replaced in plants?
A. due to growth
B. due to pressure
C. due to rubbing
D. damage through pushing
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of the following statements regarding topic models is false?
A. Topic models map documents to dense vectors
B. In LDA, topics are modeled as distributions over documents
C. LDA assumes that each document is generated from a mixture of topics with a probability distribution
D. Topics can serve as features for document classification
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What does logging cause animals to do?
A. use oxygen, release carbon
B. Plant growth is reduced
C. hide
D. eat
E. erode
F. move to find shelter.
G. Destroy crops
H. Converting waste.
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Rain helps
A. candy
B. communities thrive
C. cooking
D. bread
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Flashlights require batteries
A. to properly illuminate objects
B. to be used as a weapon
C. to meet weight requirements
D. to illuminate bright rooms
Answer: | A | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What pulls objects towards Earth?
A. gravitating
B. wind
C. forces
D. gravitational waves
E. gravity
F. radio waves
G. heat
H. rivers
Answer: | E | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Reflective glass is used for reflecting what?
A. a wave
B. empathy
C. darkness
D. the sun
E. photons
F. Joules
G. light
H. glass
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consumers eat other what?
A. oxygen
B. animal toys
C. rays
D. weaker bugs
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which scheme is the most secure?
A. DES.
B. Two-key triple DES.
C. Three-key triple DES.
D. Double DES.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider optimizing a matrix factorization $\boldsymbol{W} \boldsymbol{Z}^{\top}$ in the matrix completion setting, for $\boldsymbol{W} \in \mathbb{R}^{D \times K}$ and $\boldsymbol{Z} \in \mathbb{R}{ }^{N \times K}$. We write $\Omega$ for the set of observed matrix entries. Which of the following statements are correct?
A. Given any $\Omega$, for $K:=\min \{N, D\}$, there is an exact solution to the problem.
B. In general, a step of $\mathrm{SGD}$ will change all entries of the $\mathbf{W}$ and $\mathbf{Z}$ matrices.
C. Adding a Frob-norm regularizer for $\boldsymbol{W}$ and $\boldsymbol{Z}$ to the matrix factorization objective function makes the objective convex.
D. A step of alternating least squares is more costly than an SGD step.
E. For complete observations $\Omega=[1 \ldots D] \times[1 \ldots N]$, the problem can be solved by the singular value decomposition.
F. The cost of an SGD step depends on the number of observed entries.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which gender carries the eggs?
A. male
B. animals
C. transexual
D. ducks
E. humans
F. female
G. transgender
H. chickens
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \textit{correct} assertion.
A. In a finite field $K$, every element has exactly two square roots.
B. In a finite field $K$, 1 has exactly one square roots and it is 1.
C. The set of quadratic residues in $\mathbb{Z}_n$ is a field.
D. An element can have more than two square roots in $\mathbb{Z}_n$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Organisms that live in freshwater environments often possess a contractile vacuole that prevents cells from taking in too much water through what process?
A. osmosis
B. glycolysis
C. electrolysis
D. hemostasis
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of these most closely resembles how clouds come into being?
A. making beer
B. distilling liquor
C. driving a car
D. baking bread
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A load of dirt, mud, water and debris can come toppling down from a higher place if
A. skies are clear
B. cats are playing
C. leaves are budding
D. weather is poor
Answer: | D | openbookqa |
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