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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Matrix Factorizations: If we compare SGD vs ALS for optimizing a matrix factorization of a $D \times N$ matrix, for large $D, N$
A. (a) Per iteration, SGD has a similar computational cost as ALS
B. (b) Per iteration, ALS has an increased computational cost over SGD
C. (c) Per iteration, SGD cost is independent of $D, N$
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
An object inside a freezer will become less excited with energy an therefore become
A. cold
B. round
C. warm
D. nervous
Answer:
|
A
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are clouds that form on the ground called?
A. smoke
B. fog
C. haze
D. canopy
Answer:
|
B
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Where do biochemical reactions occer?
A. inside organisms
B. in the environment
C. outside organisms
D. inside labs
Answer:
|
A
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In the food chain process an animal has the role of consumer which eats producers for what?
A. grass
B. sea
C. water flow
D. sustenance
Answer:
|
D
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Given a matrix $\Xm$ of shape $D imes N$ with a singular value decomposition (SVD), $X=USV^ op$, suppose $\Xm$ has rank $K$ and $\Am=\Xm\Xm^ op$.
Which one of the following statements is extbf{false}?
A. The eigenvalues of A are the singular values of X
B. A is positive semi-definite, i.e all eigenvalues of A are non-negative
C. The eigendecomposition of A is also a singular value decomposition (SVD) of A
D. A vector $v$ that can be expressed as a linear combination of the last $D-K$ columns of $U$, i.e $x=\sum_{i=K+1}^{D} w_{i}u_{i}$ (where $u_{i}$ is the $i$-th column of $U$
), lies in the null space of $X^ op$
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what flows to a light bulb to turn it on?
A. heat energy
B. protons
C. Solar energy
D. neutrons
E. direct energy
F. energy
G. electrons
H. light switch
Answer:
|
G
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What do blood vessels carry?
A. nitrogen
B. glucose
C. SO2
D. water
E. Joules
F. oxygen
G. fluid
H. liquid
Answer:
|
F
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what are genes coded on?
A. nucleus
B. cell walls
C. A computer
D. Most plants
E. A Greek letter
F. pollen
G. ribosomes
H. DNA strands
Answer:
|
H
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are the organized instructions within dna for making proteins called?
A. clones
B. genes
C. genomes
D. replicants
Answer:
|
B
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Like mammals and birds, and unlike other reptiles, crocodiles have how many chambers in their heart?
A. four
B. one
C. six
D. two
Answer:
|
A
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Let \( P(n) \) be a proposition for a positive integer \( n \) (positive integers do not include 0).
You have managed to prove that \( orall k > 2, \left[ P(k-2) \wedge P(k-1) \wedge P(k)
ight]
ightarrow P(k+1) \).
You would like to prove that \( P(n) \) is true for all positive integers. What is left for you to do ?
A. None of the other statement are correct.
B. Show that \( P(1) \) and \( P(2) \) are true, then use strong induction to conclude that \( P(n) \) is true for all positive integers.
C. Show that \( P(1) \) and \( P(2) \) are true, then use induction to conclude that \( P(n) \) is true for all positive integers.
D. Show that \( P(1) \), \( P(2) \) and \( P(3) \) are true, then use strong induction to conclude that \( P(n) \) is true for all positive integers.
Answer:
|
D
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
where are there social groups called prides?
A. under the sea
B. outer space
C. complex
D. protected
E. arctic
F. fur seals
G. Summer
H. africa
Answer:
|
H
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
An example of a fossil is the bones of what kind of animal?
A. toy
B. live
C. programmed
D. wiped out
Answer:
|
D
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \emph{false} assertion. The ambiguity issue in the decryption algorithm of the Rabin cryptosystem can be solved by\dots
A. encrypting the message twice.
B. encrypting the message appended to itself.
C. appending some integrity checks to the message before encryption.
D. ensuring that the other possible plaintexts make no sense.
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is another name for a reasonable explanation for something that might be formed near the beginning of a scientific inquiry into a problem?
A. experiment
B. theory
C. conclusion
D. hypothesis
Answer:
|
D
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which animal has a circulatory system with a three-chambered heart?
A. animals
B. Salamander
C. fur seals
D. mammals
E. alpacas
F. a fish
G. warm-blooded
H. barnacles
Answer:
|
B
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What instrument measures in grams?
A. sweating
B. A balance
C. heat energy
D. A ruler
E. nutrients
F. An anemometer
G. energy
H. A thermometer
Answer:
|
B
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what falls from lower to higher altitudes?
A. gravity
B. degrees celcius
C. clouds
D. kinetic energy
E. density
F. colder and wetter
G. water vapor
H. heat energy
Answer:
|
B
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the layer of ground below the surface that is always frozen, even in the summer?
A. upper crust
B. bedrock
C. tundra
D. permafrost
Answer:
|
D
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what have special excretory structures sometimes?
A. h2o
B. fur seals
C. excretion
D. fungi
E. bees
F. insects
G. barnacles
H. clouds
Answer:
|
F
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A person wants to discover how much time they've spent on something, so when they think about data, they need to
A. accumulate it
B. ignore it
C. lose it
D. forget it
Answer:
|
A
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
if you see little wet spots on your windshield, what might have happened?
A. the sun is setting
B. vapor transformed into droplets
C. the moon is rising
D. the windshield is dissolving
Answer:
|
B
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are the two most common causes of diseases?
A. bacteria and viruses
B. nutritional deficiencies
C. bacteria and protazoa
D. viruses and protazoa
Answer:
|
A
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What does heat energy do?
A. igniting fuel and oxidiser
B. The bending of a ray of light
C. makes digestion easier
D. It gets heated up
E. Movement of an air mass
F. move to different locations
G. enormous damage to homes
H. to move people
Answer:
|
C
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Interactions between plants and other organisms result in cycling of chemical nutrients within what?
A. air
B. habitat
C. ecosystem
D. water
Answer:
|
C
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
For his awesome research, Tugrulcan is going to use the PageRank with teleportation and HITS algorithm, not on a network of webpages but on the retweet network of Twitter! The retweet network is a directed graph, where nodes are users and an edge going out from a user A and to a user B means that "User A retweeted User B". Which one is false about a Twitter bot that retweeted other users frequently but got never retweeted by other users or by itself?
A. It will have a non-zero hub value
B. It will have an authority value of zero
C. It will have a PageRank of zero
D. Its authority value will be equal to the hub value of a user who never retweets other users
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
For each of the sub-questions of this question (next page), tick/check the corresponding box if the presented sentence is correct
at the corresponding level (for a human). There will be a penalty for wrong boxes ticked/checked.The mouse lost a feather as it took off.
A. lexical
B. syntactic
C. semantic
D. pragmatic
E. none of the above is correct
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Muscle and internal organs are protected by:
A. immunization
B. fur
C. fat
D. bone
E. hair
F. skin
G. defense
H. copper
Answer:
|
D
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the force that slows down or stops motion?
A. thrust
B. tension
C. friction
D. resistance
Answer:
|
C
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What sort of habitat would living things live in?
A. A habitat with plenty of water
B. A habitat with varying weather
C. A habitat that most animals choose
D. A habitat with many toys
Answer:
|
A
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Single-celled eukaryotes that share some traits with animals are also called?
A. eukaryotes
B. monomers
C. microorganisms
D. prokaryotes
Answer:
|
A
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The great astronomer edwin hubble discovered that all distant galaxies are receding from our milky way galaxy with velocities proportional to their what?
A. masses
B. paths
C. distances
D. dimensions
Answer:
|
C
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What cools the body?
A. evaporation
B. Putting heat on it
C. Movement of an air mass
D. Starting a fire
E. Evaporation of alcohol
F. Evaporation of water
G. vaporization
H. reduced heat
Answer:
|
F
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The Pohlig-Hellman algorithm can be used to \dots
A. solve the DH problem when the order of the group is smooth.
B. solve the RSA factorization problem when $p-1$ has smooth order.
C. find square roots in $\mathbb{Z}_n$, where $n=pq$ for $p,q$ two large primes.
D. compute the CRT of two numbers.
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 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.
Cows only eat what?
A. flora
B. animals
C. water
D. bugs
Answer:
|
A
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
kinetics change stored energy into motion and
A. snacks
B. naps
C. kites
D. warmth
Answer:
|
D
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In a FP tree, the leaf nodes are the ones with:
A. Lowest confidence
B. Lowest support
C. Least in the alphabetical order
D. None of the above
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 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.
What would happen if all geese could not reproduce?
A. replication
B. extinction
C. survival
D. kill them
E. Dehydration
F. mutations
G. thrive
H. deforestation
Answer:
|
B
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which of the following would animals use to store energy?
A. fats
B. plants
C. sodium
D. blood
E. Energy
F. sugar
G. food
H. carcass
Answer:
|
A
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What does the green matter on plants do?
A. Absorb light
B. Change colors
C. Shield from sun
D. It expands
E. Protects from predators
F. Drinks water
G. reproduce
H. growth
Answer:
|
A
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When the Mountain held the Hound's face to the fire, it caused
A. joy
B. children
C. beautiful skin
D. scars
Answer:
|
D
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In an endothermic reaction, what is absorbed by the reaction?
A. fuel
B. atoms
C. food
D. energy
Answer:
|
D
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is public transportation used to transport large amounts of?
A. animals
B. energy
C. people
D. air
E. boxes
F. organisms
G. athletes
H. coal
Answer:
|
C
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are unique in having adaptive immunity in addition to innate immunity?
A. organelles
B. invertebrates
C. cells
D. vertebrates
Answer:
|
D
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What can cause harm to the most fragile part of the face?
A. Pesticides
B. water
C. cloudy days
D. cigarettes
E. light touches
F. smoking
G. vinegar
H. viruses
Answer:
|
G
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What do substances in the pituitary control?
A. To keep their body heat.
B. sweating
C. endocrine glands
D. temperature
E. preventing heat transfer
F. an organism's body
G. movement
H. Veins and arteries.
Answer:
|
C
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What studies how animals behave in their natural environment?
A. resistance activities
B. that material's properties
C. it keeps an organism warm
D. A computer
E. it's state
F. behavioral studies
G. electromagnetic energy
H. by making heat
Answer:
|
F
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is used for the fermentation process that makes beer, wine, and bread?
A. fungi
B. yeast
C. barley
D. whey
Answer:
|
B
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
As a car approaches you in the night
A. the headlights become more intense
B. the headlights recede into the dark
C. the headlights remain at a constant
D. the headlights turn off
Answer:
|
A
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider the following lexicon \(L\):
boy : Adj, N
boys : 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 boys 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:
|
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 probability distributions are members of the exponential family:
A. Cauchy distribution: $p(y|y_0,\gamma) = rac{1}{\pi \gamma [1 + ( rac{y-y_0}{\gamma})^2]}$.
B. Poisson distribution: $p(y|\mu) = rac{e^{-y}}{y!}\mu^y$.
C. Uniform distribution over $[0,\eta], \eta>0$: $p(y|\eta) = rac{1}{\eta} 1_{y \in [0,\eta]}$.
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The result of $2^{2015} \bmod{9}$ is $\ldots$
A. 2.
B. 5.
C. 4.
D. 7.
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Select the \emph{incorrect} statement. The brute force attack \dots
A. can be applicable after decades according to Moore's law.
B. can break a cipher with a $128$-bit key on your PC today.
C. has higher worst case complexity than average case complexity.
D. refers to a way of getting the secret key, exhaustively.
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider password-based access control. Tick the \textit{incorrect} assertion.
A. Double hashing the password can help avoid the problems related to low-entropy passwords.
B. Salt can be used to thwart multi-target attacks.
C. Increasing the delay between authentication attempts can protect from online attacks.
D. Blocking the access after 10 unsuccessful authentication attempts can protect from online attacks.
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 largest human organ?
A. stomach
B. skin
C. lungs
D. brain
Answer:
|
B
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Select all statements that are true.A penalty will be applied for any wrong answers.
A. The analyzer functionality of a parser determines the set of all possible associated syntactic structures for any syntactically correct sentence.
B. The recognizer functionality of a parser decides if a given sequence of words is syntactically correct or not.
C. For a sentence to be acceptable in general, it is sufficient to satisfy the positional and selectional constraints of a given language.
D. Determining whether a sentence has a pragmatic meaning depends on the context that is available.
E. Syntactic ambiguity has no effect on the algorithmic complexity of parsers.
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The test loss of the 1-nearest neighbor classifier is always zero.
A. TRUE
B. FALSE
Answer:
|
B
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What class of organisms help decompose matter to release nutrients and make nutritious food for other organisms ?
A. coral
B. bacteria
C. fungi
D. yeast
Answer:
|
C
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When using the plain ElGamal cryptosystem over the group $\mathbb{Z}_p^*$ with a fixed $\ell$-bit prime $p$ and a fixed generator $g\in\mathbb{Z}_p^*$, the \textit{tightest} complexity of generating a new key-pair is\ldots
A. $\mathcal{O}(4{\ell})$.
B. $\mathcal{O}(\ell^3)$.
C. $\mathcal{O}(\ell^2)$.
D. $\mathcal{O}(\log{\ell}^4)$.
Answer:
|
B
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Pick the \emph{false} statement.
A. A ring is always commutative: $ab=ba$
B. A ring is always associative: $(ab)c=a(bc)$
C. A ring is always distributive: $a(b+c)=ab+ac$, $(a+b)c=ac+bc$
D. A ring is always Abelian: $a+b = b+a$
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \emph{true} assertion. A distinguishing attack against a block cipher\dots
A. is a probabilistic attack.
B. succeeds with probability $1$.
C. outputs the secret key.
D. succeeds with probability $0$.
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Making a specific statement based on a general principle is the definition of what type of reasoning?
A. deductive
B. transitive
C. inference
D. inductive
Answer:
|
A
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Consider a binary classification task as in Figure~\AMCref{fig:lr_data}, which consists of 14 two-dimensional linearly separable samples (circles corresponds to label $y=1$ and pluses corresponds to label $y=0$). We would like to predict the label $y=1$ of a sample $(x_1, x_2)$ when the following holds true
\[
\prob(y=1|x_1, x_2, w_1, w_2) = rac{1}{1+\exp(-w_1x_1 -w_2x_2)} > 0.5
\]
where $w_1$ and $w_2$ are parameters of the model.
If we obtain the $(w_1, w_2)$ by optimizing the following objective
$$
- \sum_{n=1}^N\log \prob(y_n| x_{n1}, x_{n2}, w_1, w_2) + rac{C}{2} w_2^2
$$
where $C$ is very large, then the decision boundary will be close to which of the following lines?
A. $x_1 + x_2 = 0$
B. $x_1 - x_2 = 0$
C. $x_1 = 0$
D. $x_2 = 0$
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
A genetic molecule is called dna, which stands for this?
A. di-nitrous ammonia
B. dark nitrogen amine
C. dense ribonucleic acid
D. deoxyribonucleic acid
Answer:
|
D
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What filters blood?
A. nephrons
B. capillaries
C. mechanical
D. four limbs
E. animals
F. organ
G. sunlight
H. mollusks
Answer:
|
A
|
qasc
|
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.
Which is a source of raw materials?
A. a power plant
B. a factory
C. a shopping mall
D. an oil field
Answer:
|
D
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what does water vapor condensing in the clouds cause?
A. energy
B. Pollution
C. Evaporation
D. moist soil
E. Energy.
F. flooding
G. kinetic energy
H. Heat energy
Answer:
|
D
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
When the seasons change from the summer to the fall, what decreases?
A. sunlight
B. rainfall
C. salinity
D. Sun light
E. rain
F. energy usage
G. ice
H. distance
Answer:
|
D
|
qasc
|
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.
Suppose you have a search engine that retrieves the top 100 documents and
achieves 90% precision and 20% recall. You modify the search engine to
retrieve the top 200 and mysteriously, the precision stays the same. Which one
is CORRECT?
A. The recall becomes 10%
B. The number of relevant documents is 450
C. The F-score stays the same
D. This is not possible
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 algorithms is \emph{not} a hash function?
A. SHA-1
B. MD5
C. RC4
D. MD4
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
The transport of what requires energy?
A. communication
B. microorganisms
C. colors of the spectrum
D. Something to move
E. salamanders
F. Neurotransmitters
G. an object
H. Veins and arteries.
Answer:
|
F
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What can a greenhouse protect by keeping warm?
A. mussels
B. Species
C. organisms
D. lights
E. bushes
F. rocks
G. Oak
H. hats
Answer:
|
E
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What do plasma cells allow our bodies to fight?
A. resistance
B. parasites
C. infection
D. illness
E. Hostile armies
F. invasion
G. hair
H. Leptospirosis
Answer:
|
C
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
what causes sunlight to split into different colors?
A. bending of light rays
B. focusing a lens
C. converting electricity to heat
D. increasing electrons
E. reflections
F. heat energy
G. adding h2o
H. an electron lens
Answer:
|
A
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is described by the concentration of hydrogen ions in a solution?
A. oxidation
B. hydrogeny
C. ph
D. neutrality
Answer:
|
C
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Select the \textbf{most accurate} answer. For a hash function to be secure (\textbf{but still efficient}) against collision attacks in 2015, the output length should be\dots
A. around 80 bits.
B. around 160 bits.
C. around 512 bits.
D. around 1024 bits.
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Magnetism is due to the movement of what within atoms?
A. magnetrons
B. protons
C. neutrons
D. electrons
Answer:
|
D
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Suppose that an item in a leaf node N exists in every path. Which one is correct?
A. N co-occurs with its prefix in every transaction.
B. For every node P that is a parent of N in the fp tree, confidence(P->N) = 1
C. N’s minimum possible support is equal to the number of paths.
D. The item N exists in every candidate set.
Answer:
|
C
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \emph{correct} assertion. Linear cryptanalysis \ldots
A. was invented long before the Caesar cipher.
B. is a chosen plaintext key recovery attack.
C. requires $\frac{1}{DP}$ pairs of plaintext-ciphertext.
D. breaks DES with $2^{43}$ known plaintexts.
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Which bonds are the strongest of the intermolecular forces?
A. carbon
B. calcium
C. hydrogen
D. complex
Answer:
|
C
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What is the fastest land animal?
A. cheetah
B. greyhound
C. rhino
D. ostrich
Answer:
|
A
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
One way humans may be polluting the Earth is
A. using solar energy
B. antibacterial soap
C. riding bikes
D. walking
Answer:
|
B
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
In what unit is speed usually measured?
A. radians
B. miles per hour
C. Celcius
D. calories
Answer:
|
B
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Tick the \emph{incorrect} assertion. The Diffie-Hellman key agreement protocol \ldots
A. allows two participants to set up a key so that they can communicate securely.
B. requires the hardness of the Discrete Logarithm problem.
C. uses ElGamal encryption in order to establish the key.
D. is easy to break when working on the group $\mathbf{Z}_{n}$.
Answer:
|
A
|
m1_preference
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Air is considered to be a vehicle for..?
A. Light
B. Wind
C. Speed
D. Sound
Answer:
|
D
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
If a river dries, deer may
A. detect more water
B. carry on without
C. restore it
D. quest for sources
Answer:
|
D
|
openbookqa
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
What are reversible physical changes in matter called?
A. alterations
B. changes of state
C. transformations
D. chemical change
Answer:
|
B
|
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.
What converts electrical energy to sound?
A. ears
B. organ
C. radios
D. pencils
E. engines
F. waves
G. Gunshots
H. antennae
Answer:
|
C
|
qasc
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
As an individual is forced to pedal harder on a bicycle their pulse rate
A. stays the same
B. decreases
C. stops
D. increases
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 an antibody that inappropriately marks self-components as foreign?
A. rogue antibody
B. autoantibody
C. autoimmune antibody
D. compromised antibody
Answer:
|
B
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Scientists goal is develop nuclear fusion power plants, where the energy from fusion of hydrogen nuclei can be converted to what?
A. gasoline
B. wind
C. oil
D. electricity
Answer:
|
D
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Bubbles in bread dough are created by what gas produced during alcoholic fermentation?
A. combustion dioxide
B. acid dioxide
C. carbon dioxide
D. yeast dioxide
Answer:
|
C
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
All the blood in the human body is filtered about 60 times a day by what?
A. heart
B. liver
C. kidneys
D. lungs
Answer:
|
C
|
sciq
|
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses.
Phylum chordata consists of two subphyla of invertebrates, as well as the hagfishes and what else?
A. cells
B. vertebrates
C. organs
D. lipids
Answer:
|
B
|
sciq
|
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