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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
K-means can be equivalently written as the following Matrix Factorization $$ \begin{aligned} & \min _{\mathbf{z}, \boldsymbol{\mu}} \mathcal{L}(\mathbf{z}, \boldsymbol{\mu})=\left\|\mathbf{X}-\mathbf{M} \mathbf{Z}^{\top}\right\|_{\text {Frob }}^{2} \\ & \text { s.t. } \boldsymbol{\mu}_{k} \in \mathbb{R}^{D}, \\ & z_{n k} \in \mathbb{R}, \sum_{k=1}^{K} z_{n k}=1 . \end{aligned} $$
A. (a) yes
B. (b) no
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 content of the inode?
A. Filename
B. File mode
C. Hard links counter
D. String with the name of the owner
E. File size
F. Capacity of the whole file system
G. Index structure for data blocks
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Some birds find locations with
A. landmarks
B. road signs
C. eggs
D. magnetic patterns
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The amniotic egg first evolved in what species?
A. birds
B. mammals
C. amphibians
D. reptiles
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Four electron groups orient themselves into what shape that has four faces?
A. tetrahedron
B. multicellular
C. circular
D. spherical
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
nutrients from food and water are necessary to an organism's
A. friendships
B. habitat
C. survival
D. caloric needs
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
which of these is an accurate scenario?
A. the sun traveling around the earth
B. none of these
C. the sun orbiting Mars
D. the earth traveling around the sun
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the term for the temperature at which a solid changes into a liquid?
A. the pressure point
B. the mixture point
C. the starting point
D. the melting point
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
(Minima) Convex functions over a convex set have a unique global minimum.
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.
Electrons are organized into shells and subshells about the nucleus of this?
A. compound
B. atom
C. element
D. molecule
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
How does insulation help animals?
A. stability
B. morality
C. sharks
D. fur
E. survive
F. electrical conductivity
G. fibers
H. warmth
Answer: | H | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What type of cups accurately measure liquids?
A. bamboo
B. small
C. barrel-shaped
D. Measuring.
E. Tea
F. Toy
G. Coffee
H. unidirectional
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
More condensing water means more of what?
A. CO 2
B. rain
C. hurricanes
D. contraction
E. heat
F. dew
G. expansion
H. gas
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The electroplating process transfers metal from the anode to which part of the cell?
A. cathode
B. plasma
C. atom tube
D. electrode
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider the following loaded dice with $6$ faces: $P(S_1=6)=5/6$ and $P(S_1 = x)=1/30$ for $x\in\{1,2,3,4,5\}$. Suppose we throw it indefinitely. Hence, we have a source $S=S_1 S_2 S_3\ldots$. Then, the source is stationary.
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.
What do you call the folded layers of rock where geologists look for oil?
A. crests
B. synclines
C. anticlines
D. oscillations
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which statement is correct?
A. The Viterbi algorithm works because words are independent in a sentence
B. The Viterbi algorithm works because it is applied to an HMM model that makes an independence assumption on the word dependencies in sentences
C. The Viterbi algorithm works because it makes an independence assumption on the word dependencies in sentences
D. The Viterbi algorithm works because it is applied to an HMM model that captures independence of words in a sentence
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Pollution is a source of what?
A. dirtying agents
B. purity
C. fertilization
D. cleanliness
Answer: | A | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of the following graph analysis techniques do you believe would be most appropriate to identify communities on a social graph?
A. Cliques
B. Random Walks
C. Shortest Paths
D. Association rules
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 worst case complexity of listing files in a directory? The file system implements directories as hash-tables.
A. $O(1)$
B. $O(number of direntries in the directory)$
C. $O(size of the file system)$
D. $O(number of direntries in the file system)$
E. $O(log(number of direntries in the directory))$
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Where's the best place to mine for coal?
A. icebergs
B. jewelry store
C. lakes
D. mountains
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 would be considered a predator?
A. grizzly bear
B. moose
C. salmon
D. lobster
Answer: | A | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is defined as force per unit area?
A. energy
B. resistance
C. momentum
D. pressure
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When sugar is added to water, it blends in such as in which drink?
A. milk
B. lemonade
C. juice
D. tea
Answer: | B | openbookqa |
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.
where are gametophytes?
A. shrub beds
B. ovaries
C. ferns
D. barnacles
E. fertile
F. bushes
G. trees
H. plants
Answer: | B | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Whenever I want to use Z-Score standardization (also known as normalization), I should use the mean and standard deviation of the training set to normalize my training, validation, and test set.
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.
What metabolic rate does a shrew have?
A. allow growth
B. High rate
C. four limbs
D. complex
E. glucose
F. Energy.
G. more abundant
H. energy
Answer: | B | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A person is what without cellular respiration?
A. major threat to health
B. dormant state
C. They may not survive.
D. breathing deeply
E. tired and lacking energy
F. hydrated and full
G. dead organisms
H. awake and sleepless
Answer: | E | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What can living underground keep animals from being?
A. Gravity
B. killed
C. smart
D. deadly
E. leeches
F. dark
G. streams.
H. safe
Answer: | B | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What fibres are seen in some vertebrates that twitch at rates far faster than any human muscle?
A. fast glycolytic fibres
B. slow twitch fibres
C. skeletal muscle fibers
D. fast oxidative fibres
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
the movement of an air mass over Earth 's surface changes what?
A. Temperature
B. The atmosphere
C. Earth's atmosphere
D. Earth's science
E. earth's shadow
F. energy of moving objects
G. Earth's water
H. kinetic energy
Answer: | C | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A synergist that makes the insertion site more stable is called a what?
A. dominator
B. fixator
C. kilocalorie
D. lesion
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What term is used to describe the electrostatic process used by most copy machines?
A. microphotography
B. xerography
C. electrography
D. titanomachy
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Given the following data structure: enum IntSet: \t case Empty \t case NonEmpty(x: Int, l: IntSet, r: IntSet) And the following lemmas, holding for all x: Int, xs: List[Int], ys: List[Int], l: IntSet and r: IntSet: (SizeNil) nil.size === 0 (SizeCons) (x :: xs).size === xs.size + 1 (ConcatSize) (xs ++ ys).size === xs.size + ys.size (TreeSizeEmpty) Empty.treeSize === 0 (TreeSizeNonEmpty) NonEmpty(x, l, r).treeSize === l.treeSize + r.treeSize + 1 (ToListEmpty) Empty.toList === nil (ToListNonEmpty) NonEmpty(x, l, r).toList === l.toList ++ (x :: r.toList) Let us prove the following lemma for all s: IntSet: (ToListSize) s.toList.size === s.treeSize We prove it by induction on s. Base case: s is Empty. Therefore, we need to prove: Empty.toList.size === Empty.treeSize Starting from the left hand-side (Empty.toList.size), what exact sequence of lemmas should we apply to get the right hand-side (Empty.treeSize)?
A. SizeNil, ToListEmpty, TreeSizeEmpty
B. ToListEmpty, TreeSizeEmpty, SizeNil
C. SizeNil, TreeSizeEmpty, ToListEmpty
D. TreeSizeEmpty, SizeNil, TreeSizeEmpty
E. ToListEmpty, SizeNil, TreeSizeEmpty
F. TreeSizeEmpty, ToListEmpty, SizeNil
Answer: | E | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Smaller rocks come from the interaction of bedrock with what over long periods of time
A. volcanoes
B. wind
C. sunlight
D. years
E. force
F. soils
G. earth
H. animals
Answer: | B | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When water goes above and below its freezing point, what rock-breaking phenomenon is common?
A. ice crushing
B. ice locking
C. ice inverting
D. ice wedging
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider a regression task. You are using your favorite learning algorithm with parameters w and add a regularization term of the form $\frac{\lambda}{2}\|\mathbf{w}\|^{2}$. Which of the following statements are correct for a typical scenario?
A. The training error as a function of $\lambda \geq 0$ decreases.
B. The training error as a function of $\lambda \geq 0$ increases.
C. The test error as a function of $\lambda \geq 0$ increases.
D. The test error as a function of $\lambda \geq 0$ decreases.
E. The training error as a function of $\lambda \geq 0$ first decreases and then increases.
F. The test error as a function of $\lambda \geq 0$ first decreases and then increases.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Where do plates move apart in oceans and on land?
A. volcanic ridges
B. unsettled plate boundaries
C. coastal zones
D. divergent plate boundaries
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In Ranked Retrieval, the result at position k is non-relevant and at k+1 is relevant. Which of the following is always true?Hint: P@k and R@k are the precision and recall of the result set consisting of the k top ranked documents.
A. P@k-1>P@k+1
B. P@k-1=P@k+1
C. R@k-1<R@k+1
D. R@k-1=R@k+1
Answer: | C | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What kind of radiation is greatest at the equator and lessens toward the poles?
A. lunar raditation
B. solar radiation
C. large radiation
D. small radiation
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
How does the diaphragm look like when it is at rest?
A. dam - shaped
B. dome-shaped
C. flat
D. inverted
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the name for unsaturated hydrocarbons that contain at least one double bond?
A. acids
B. alkenes
C. lipids
D. enzymes
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
how much time does it take the third planet from the sun to make a full turn?
A. 23 hours
B. twenty-one hours
C. twenty-four hours
D. 22 hours
Answer: | C | openbookqa |
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.
What is a molecule with two fatty acids and a modified phosphate group attached to a glycerol backbone?
A. phospholipid
B. amino acid
C. polymer
D. carbohydrate
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A being may have more of a chance of survival if it can
A. dance like people are looking
B. climb up to tall places
C. hang out in large, loud groups
D. skateboard for long periods of time
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A source of heat may come from
A. a cold shower
B. holding hands
C. holding ice
D. Antartica
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Your friend Charlie was training a neural net, and observed something very curious. During training, the same network, with the same exact weights, doesn't always give the same prediction for a given example. What can cause this behavior?
A. Residual layers (skip-connections)
B. Convolutional layers
C. Batch normalization
D. SGD with momentum
E. Adam
F. Dropout
G. L1 regularization
H. L2 regularization
I. This is not possible, Charlie made a mistake
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Gene therapy is a type of what kind of engineering?
A. genetic engineering
B. chemical engineering
C. mechanical engineering
D. electrical engineering
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
KEM \dots
Question Options:
1. stands for Keyless Encryption Mechanism.
2. is a Korean encryption mechanism.
3. is a symmetric-key algorithm.
4. is a public-key algorithm.
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.
Plants and trees suck up carbon dioxide, so if trees are cut down, carbon levels will
A. cry
B. fly
C. escalate
D. go down
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of the following graph analysis techniques do you believe would be most appropriate to identify communities on a social graph?
A. Cliques
B. Random Walks
C. Shortest Paths
D. Association rules
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider the following lexicon \(L\):
bear : V, N
bears : V, N
blue : Adj, N
drink : N, V
drinks : N, V
Nice : Adj, N
When using an order-1 HMM model (using \(L\)) to tag the word sequence:"Nice bears drink blue drinks"does the tag of drink depend on the tag of nice?
A. yes, because the HMM approach relies on a global maximum.
B. no, the hypotheses make the two tags independent from each other.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What passes traits from parents to offspring?
A. Birth certificate
B. Lactation
C. p53
D. HIV
E. RNA
F. Pedigree
G. SNPs
H. DNA
Answer: | H | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what keeps plants warm?
A. glass
B. trees
C. lipids
D. fats
E. fibers
F. keratin
G. energy
H. heat
Answer: | A | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What must a chemical reaction overcome before starting?
A. PV=nRT
B. heat or cold
C. reactants
D. energy barrier
E. Dehydration
F. harmful substances
G. resistance
H. temperature
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consuming from an aluminium container, a human is likely enjoying
A. a melted down liver enzyme
B. a strange liquid metal
C. a makeshift type of pasta
D. a crisp beverage with cold bubbles streaming throughout it
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Named after the dutch physicist, the van de graaff is a type of what device used for nuclear research?
A. accelerator
B. electromagnetic
C. radiation detector
D. barometer
Answer: | A | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What does a tape measure do?
A. observe appearance
B. measure weight
C. measure density
D. measure distance
E. focusing a lens
F. objects that have mass
G. lowered energy cost
H. duplicate itself
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In x86-64 Linux, the canary is \textbf{always} different for every?
A. Thread
B. Function
C. Process
D. Namespace
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Bulbs can be classified as what shape
A. a prism
B. LEDs
C. barrel
D. grow
E. complex
F. Flowers
G. Grow well
H. orchids
Answer: | C | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what does a radio convert into vibrations?
A. flow of protons
B. Heart rate
C. h2o
D. encoded information
E. Loud noises
F. flow of electrons?
G. television
H. Through play
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider the following context-free grammar \(G\) (where \(\text{S}\) is the top-level symbol):
\(R_{01}: \text{S} \rightarrow \text{NP VP}\)
\(R_{02}: \text{NP} \rightarrow \text{NP0}\)
\(R_{03}: \text{NP} \rightarrow \text{Det NP0}\)
\(R_{04}: \text{NP0} \rightarrow \text{N}\)
\(R_{05}: \text{NP0} \rightarrow \text{Adj N}\)
\(R_{06}: \text{NP0} \rightarrow \text{NP0 PNP}\)
\(R_{07}: \text{VP} \rightarrow \text{V}\)
\(R_{08}: \text{VP} \rightarrow \text{V NP}\)
\(R_{09}: \text{VP} \rightarrow \text{V NP PNP}\)
\(R_{10}: \text{PNP} \rightarrow \text{Prep NP}\)
complemented by the lexicon \(L\):
a : Det
blue : Adj, N
drink : N, V
drinks : N, V
friends : N
from : Prep
gave : V
letter : N
my : Det
neighbor : N
nice : Adj, N
of : Prep
postman : N
ran : V
the : Det
to : PrepIf the notation \(T(w)\) is used to refer to the rule \(T \rightarrow w\), which of the following correspond to valid derivations according to the grammar \(G\)?(Penalty for wrong ticks.)
A. \(R_{01}, R_{08}, R_{02}, R_{04}, \text{N}(\text{letter}), \text{V}(\text{ran}), R_{03}, \text{Det}(\text{the}), R_{04}, \text{N}(\text{drinks})\)
B. \(R_{01}, R_{03}, \text{Det}(\text{a}), R_{05}, \text{Adj}(\text{blue}), \text{N}(\text{drink}), R_{07}, \text{V}(\text{ran})\)
C. \(R_{01}, R_{02}, R_{04}, \text{N}(\text{friends}), R_{09}, \text{V}(\text{gave}), R_{02}, \text{N}(\text{postman})\)
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
By allowing blood levels of a hormone to be regulated within a narrow range, feedback loops contribute to maintaining what state?
A. consciousness
B. hibernation
C. homeostasis
D. hypothesis
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
By what process does the haploid gametophyte produce the gametes?
A. Spermatogenesis
B. mitosis
C. angiogenesis
D. meiosis
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What kind of cleavage do mammalian eggs exhibit?
A. spicule
B. holoblastic
C. cocklebur
D. Meroblastic
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A thing that is introduced to thermal activity will likely do this if it is able to drip:
A. chill
B. evaporate
C. ice over
D. freeze
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Earth orbiting the Sun causes changes to what?
A. weather
B. sunlight
C. colors
D. food
E. herds
F. water
G. earth
H. climate
Answer: | A | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What tends to be related to bacteria?
A. heterotrophs
B. vomiting
C. chickenpox
D. healing
E. cancer
F. sea urchins
G. delayed-onset muscle soreness
H. Enzymes
Answer: | B | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The increase in transport ability may increase the available types of
A. houses
B. education
C. internet
D. grains
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What happens to bamboo throughout its life?
A. It helps them survive
B. it has cellular respiration
C. it dies and comes back to life
D. it continues to grow
E. it needs no water
F. it keeps an organism warm
G. flow of electrons
H. the body's largest organ
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
a producer is a source of energy for
A. shoes
B. poetry
C. external food eaters
D. rubber
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Select all the statements that are true.A penalty will be applied for any incorrect answers selected.
A. The Luhn law states that if a set of words are ranked by the decreasing order of their frequencies, the high-ranked words are the best features for identifying the topics that occur in the document collection.
B. The order of words are ignored in the bag-of-words model.
C. High values of document frequency means that the word is not very discriminative.
D. Documents that are orthogonal to each other gives a cosine similarity measure of 1.
E. Cosine similarity is independent of the length of the documents.
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.
There are producers that exist in the food chain, and they basically
A. are mainly creatures like deer
B. require photosynthesis to survive
C. produce a thing called chlorophyll
D. make good money at work
Answer: | B | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
powerlines cause harm to what
A. soil
B. air pollution
C. cells
D. light polllution
E. animals
F. amphibians
G. organism
H. an object
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
blowing and causing air to vibrate makes what
A. expand
B. evaporate
C. kinetic energy
D. waves
E. Energy.
F. combine
G. loud noise
H. energy
Answer: | G | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What swim from organs that produce hormones for fertilization?
A. sperm
B. toads
C. embryos
D. blood
E. humans
F. eggs
G. seeds
H. ovaries
Answer: | A | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Food chains carry energy from what group to what group?
A. refiners to consumers
B. producers to consumers
C. decomposers to producers
D. consumers to producers
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of the following integers has the square roots $\{2,3\}$ when taken modulo $5$ \textbf{and} the square roots $\{3,10\}$ when taken modulo $13$.
A. $4$.
B. $9$.
C. $6$.
D. $5$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Soil contains
A. the highest portion of the ozone layer
B. the rotten idea of a decaying democracy
C. waves of salt-water moving back and forth
D. chemical substances found in every living thing
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \emph{correct} assertion about $\mathbf{Z}_{pq}^*$, where $p$ and $q$ are distinct prime numbers \ldots
A. the order of $\mathbf{Z}_{pq}^*$ is $p \cdot q$.
B. an element $x$ belongs to $\mathbf{Z}_{pq}^*$ if $gcd(x,\phi(pq)) =1$.
C. the element $1$ is in $\mathbf{Z}_{pq}^*$.
D. the element $0$ is in $\mathbf{Z}_{pq}^*$.
Answer: | A | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Corn would likely provide nutrients to
A. a rock
B. a ice
C. a waterfall
D. a raven
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
a little rat startles a cat and ends up as the cat's lunch. What does that make the car?
A. the cat is a dog
B. the cat is a bad cat
C. the cat is carnivorous or omnivorous
D. the cat loves milk
Answer: | C | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are formed by flowing rivers through erosion over long periods of time?
A. Sediment
B. soft soil
C. forests
D. deep gorges
E. cloud cover
F. patch reefs
G. big oceans
H. kalenchoes
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What from one species to another occurs over geologic time?
A. Energy
B. science
C. means
D. change
E. fusion
F. movement
G. pollen
H. time
Answer: | D | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In Ranked Retrieval, the result at position k is non-relevant and at k+1 is relevant. Which of the following is always true?Hint: P@k and R@k are the precision and recall of the result set consisting of the k top ranked documents.
A. P@k-1>P@k+1
B. P@k-1=P@k+1
C. R@k-1<R@k+1
D. R@k-1=R@k+1
Answer: | C | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
An animal that clucks has
A. four legs
B. fur
C. teeth
D. wings
Answer: | D | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What can be identified after heating water?
A. Chemical energy
B. organisms
C. frozen water
D. its freezing point
E. Movement of an air mass
F. its boiling point
G. objects that have mass
H. magma's boiling point
Answer: | F | qasc |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which part of a leaf contains openings known as stomata, through which the exchange of gases takes place?
A. cuticle
B. epidermis
C. stoma
D. phloem
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What works by providing a lower energy pathway from reactants to products?
A. thermodynamics
B. magnetism
C. hormones
D. catalyst
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Let the first four retrieved documents be N N R R, where N denotes a non-relevant and R a relevant document. Then the MAP (Mean Average Precision) is:
A. 1/2
B. 5/12
C. 3/4
D. 7/24
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Where does photosynthesis occur in plants?
A. golgi bodies
B. cell membrane
C. in chloroplasts
D. nucleus
Answer: | C | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Diamonds are made and dispersed by
A. volcanoes
B. gypsies
C. giants
D. clouds
Answer: | A | openbookqa |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Cyanobacteria are bluish green in color because they contain what?
A. carbonate
B. chlorophyll
C. chloroplasts
D. microbial
Answer: | B | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
How does LSI querying work?
A. The query vector is treated as an additional term; then cosine similarity is computed
B. The query vector is transformed by Matrix S; then cosine similarity is computed
C. The query vector is treated as an additional document; then cosine similarity is computed
D. The query vector is multiplied with an orthonormal matrix; then cosine similarity is computed
Answer: | C | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What occurs when muscle fibers get shorter?
A. muscle tension
B. muscle extension
C. muscle diffusion
D. muscle contraction
Answer: | D | sciq |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is true regarding Fagin's algorithm?
A. It performs a complete scan over the posting files
B. It provably returns the k documents with the largest aggregate scores
C. Posting files need to be indexed by TF-IDF weights
D. It never reads more than (kn)½ entries from a posting list
Answer: | B | m1_preference |
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Let us assume that a kernel $K: \mathcal{X} \times \mathcal{X} \rightarrow \mathbb{R}$ is said to be valid if there exists $k \in \mathbb{N}$ and $\Phi: \mathcal{X} \rightarrow \mathbb{R}^{k}$ such that for all $\left(x, x^{\prime}\right) \in \mathcal{X} \times \mathcal{X}, K\left(x, x^{\prime}\right)=\Phi(x)^{\top} \Phi\left(x^{\prime}\right)$ Which one of the following kernels is not valid ?
A. $\mathcal{X}=\mathbb{N}, K\left(x, x^{\prime}\right)=2$
B. $\mathcal{X}=\mathbb{R}^{d}, K\left(x, x^{\prime}\right)=\left(x^{\top} x^{\prime}\right)^{2}$
C. $\mathcal{X}=\mathbb{R}, K\left(x, x^{\prime}\right)=\cos \left(x-x^{\prime}\right)$
D. All of the proposed kernels are in fact valid.
E. $\mathcal{X}=\mathbb{Q}, K\left(x, x^{\prime}\right)=2^{x+x^{\prime}}$
F. $\mathcal{X}=\mathbb{R}^{d}, K\left(x, x^{\prime}\right)=x^{\top} A x^{\prime}$, where $A$ is a $d \times d$ symmetric positive semi-definite matrix.
Answer: | D | m1_preference |
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