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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. MD5 is A. a secure block cipher B. a broken block cipher C. a secure hash function D. a broken hash function Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. The water cycle is powered by energy from where? A. living things B. sun C. earth D. atmosphere Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. A mother births what? A. light B. elements C. younglings D. nothing Answer:
C
openbookqa
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Australopithecus afarensis is an ancestor of what primate? A. orangutans B. humans C. gorillas D. lemurs Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What is not a cell? A. A computer B. all matter C. smallpox D. an object E. illness F. bacteria G. Most plants H. hydrocarbons Answer:
C
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What material is an example of an electrical insulator? A. Metal B. Cement C. Stone D. Brick Answer:
D
openbookqa
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. If the top 100 documents contain 50 relevant documents A. the precision of the system at 50 is 0.25 B. the precision of the system at 100 is 0.5 C. the recall of the system is 0.5 D. All of the above Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What can cause evolution to occur? A. heat B. viruses C. alleles D. pollen E. Pesticides F. extinction G. A computer H. animals Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. In police radar, a radar gun sends out short bursts of which waves? A. microwaves B. soundwaves C. electrodes D. photons Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Let $G$ be a set and $*$ a commutative operation on pairs of elements from $G.$ Suppose there exists an element $e\in G$ such that $a*e=e*a=a$ for all $a \in G.$ Also, suppose there exist elements $b,c,d \in G$ such that $b*c=d*c.$. True or false: If $b ot=d,$ then $(G,*)$ cannot be a group. A. False B. True Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What occurs when rocks are weathered mechanically? A. Sediment B. flooding C. movement D. Winter E. deltas F. wind G. amoebae H. friction Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Earth's tilt on its rotating axis causes what? A. rainfall B. wind C. rest D. spring E. autumn F. pollution G. taxes H. death Answer:
E
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What impact does recycling have on the environment? A. Positive B. humans C. Negative D. less water E. mild F. protect them G. It changes life as we know it H. It's inconsequential Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What do prevailing winds influence? A. barometric pressure B. climate C. weather D. temperature Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. The conversion factor between solubility and molar solubility of a compound is known as what? A. mass effect B. stochastic mass C. molar mass D. molar value Answer:
C
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. organic life requires certain things to grow such as A. nutritional values B. zinc C. acid D. darkness Answer:
A
openbookqa
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. what conductor may become hot if exposed to heat? A. copper B. metal C. LEDs D. gas E. rubber F. coal G. oxygen H. Oak Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. what is a prism used to refract? A. Something that can be auburn B. basic building blocks of life C. mirrors D. our nearest star E. wavelengths and photons F. microwaves G. triangles H. focusing a lens Answer:
E
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What is the length in bits of the input and output of a DES S-Box respectively? A. 6 and 6 B. 4 and 6 C. 6 and 4 D. 4 and 4 Answer:
A
m1_preference
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Tick the \textbf{incorrect} assumption. A language $L$ is in NP if\dots A. $x \in L$ can be decided in polynomial time. B. $x \in L$ can be decided in polynomial time given a witness $w$. C. $L$ is NP-hard. D. $L$ (Turing-)reduces to a language $L_2$ with $L_2$ in $P$, i.e., if there is a polynomial deterministic Turing machine which recognizes $L$ when plugged to an oracle recognizing $L_2$. Answer:
A
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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
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Where are salt and freshwater biomes found? A. salt water B. state C. sea D. estuaries E. rivers F. atlantic ocean G. Sediment H. Deposition Answer:
D
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Adding sulfur to soil can cause what? A. contamination B. flooding C. plants to die D. Pollution E. chemical reaction F. Greenhouse gasses G. global warming H. harmful substances Answer:
C
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. P16 is an example of what type of thing that causes cancer when it stops functiong properly? A. Toxins B. edema C. gene D. ferns E. CO 2 F. PDAs G. HIV H. albino Answer:
C
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. The wavelength of a what type of wave can be measured as the distance between two adjacent compressions? A. vertical B. longitudinal C. lateral D. horizontal Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What comes from lifting heavy weights? A. sizing B. Dehydration C. kinetic energy D. contracting E. Energy F. forces G. destroying H. embellishing Answer:
D
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. When constructing a word embedding, negative samples are A. word - context word combinations that are not occurring in the document collection B. context words that are not part of the vocabulary of the document collection C. all less frequent words that do not occur in the context of a given word D. only words that never appear as context word Answer:
A
m1_preference
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. One source of heat might be A. eating ice B. moving to Antartica C. sitting in snow D. a mini flashlight Answer:
D
openbookqa
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
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. When a plant is water the liquid goes from the soil area to where it is needed using what system? A. xylem B. flowering pistols C. sprinkler D. leaves Answer:
A
openbookqa
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What is magnetism produced by electricity called? A. excitation B. electromagnetism C. momentum D. electrical attraction Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What contains deoxyribonucleic acid but not much else. A. minerals B. bacteria C. loose soil D. pollen E. viruses F. anemia G. PDAs H. vertebrates Answer:
E
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Feeling is when a living thing senses through what? A. sight B. smell C. contact D. taste Answer:
C
openbookqa
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What kind of energy comes from the position of a charged particle in an electric field? A. potential energy B. mechanical energy C. solar energy D. thermal energy Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What effect does seed dispersal have on humans? A. deadly and devastating B. biological diversity C. Worse effect D. Negative effect E. population movement F. Unknown effect G. Positive effect on survival H. resistance activities Answer:
G
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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
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. In which attack scenario does the adversary ask for the decryption of selected messages? A. Known plaintext attack B. Chosen plaintext attack C. Ciphertext only attack D. Chosen ciphertext attack Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What term describes motion that repeats itself at regular time intervals, such as exhibited by a vibrating guitar string? A. gravitational pull B. apparent motion C. periodic motion D. specific speed Answer:
C
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What are the two divisions of vascular plants? A. aquatic and terrestrial B. seedless and semi-seeded C. root and seed D. seedless and seed Answer:
D
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. A piece of paper is a different shape when it A. is made into a paper fan B. is on a desk C. has a drawing on it D. has words on it Answer:
A
openbookqa
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Why do some dry fruits split open at maturity? A. to release toxins B. to release berries C. to release seeds D. to regenerate Answer:
C
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. A specific plant is found A. in some areas B. in outer space C. nowhere D. in all areas Answer:
A
openbookqa
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. an energy source used by devices moves well through what? A. objects that have mass B. colder weather C. Veins and arteries. D. an electron microscope E. dormant state F. wires and water G. during the day H. they body they live in Answer:
F
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What occurs when a parent cell splits into two identical daughter cells of the same size? A. symbiotic fission B. binary fission C. twin fission D. linear fission Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. When the moon, sun, and earth line up, tides are at their A. lower B. increased C. gone away D. just okay Answer:
B
openbookqa
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Fog is formed when A. summer end B. evaporation C. Winter D. movement E. air cools F. Wet weather G. rainy H. dry and hot Answer:
E
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What forms when a glacier scrapes a large hole in the ground? A. glacial lake B. glacial hill C. underground cavern D. crater lake Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What do jellyfish use to startle predators? A. visible light B. black light C. harsh light D. bicellular light Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Millipedes lack what? A. epidermal B. segmented body C. leg pairs D. a cuticle E. a vertebral column F. diplosomites G. Chlorophyll H. biological diversity Answer:
E
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What uses stems to store water? A. bacteria B. humans C. Oak D. rocks E. trees F. ferns G. fens H. amoebae Answer:
F
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. being burried under soil and mud changes how what forms? A. cacti B. deltas C. fens D. potash E. bamboo F. rivers G. roots H. mildew Answer:
C
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Which protocol is used for encryption in GSM? A. A3 B. A4 C. A5 D. A8 Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Let $\mathcal{C}$ be a binary $(6,3)$ linear code containing the codewords $\mathbf{x}_1 = 011011$, $\mathbf{x}_2 = 101101$ and $\mathbf{x}_3 = 111000$. True or false: The minimum distance of the code is $d_{\min} = 3$. A. True B. False Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Innate behaviors occur in all animals. however, they are less common in species with higher levels of what? A. intelligence B. interdependence C. nonverbal communication D. hormones Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What kind of plants produces their seeds in cones? A. spored bushes B. flowers C. more abundant D. Conifers E. white F. insects G. evergreens H. deciduous trees Answer:
G
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. When computing PageRank iteratively, the computation ends when... A. The difference among the eigenvalues of two subsequent iterations falls below a predefined threshold B. The norm of the difference of rank vectors of two subsequent iterations falls below a predefined threshold C. All nodes of the graph have been visited at least once D. The probability of visiting an unseen node falls below a predefined threshold Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What has a relatively complex circulatory system with a three-chambered heart? A. frogs B. a fish C. salmon D. alpacas E. Man F. Birds G. sharks H. pan Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. when do chromosomes form the genetic material of a cell? A. volume B. seeds C. cell wall D. mitosis E. plants F. three G. Summer H. death Answer:
D
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Which of the following statements about code instrumentation is/are correct? A. We should instrument basic blocks when collecting edge coverage. B. The instrumentation code for coverage collection should not change the original functionality. C. Binary rewriting-based coverage collection has lower runtime overheads than compiler-based instrumentation. D. We can only do binary rewriting on position-independent code (PIC). Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. In ElGamal signature scheme, if we avoid checking that $0 \leq r < p$ then \ldots A. \ldots a universal forgery attack is possible. B. \ldots an existential forgery attack is avoided. C. \ldots we can recover the secret key. D. \ldots we need to put a stamp on the message. Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Which of the following can help reduce global warming? A. Lowering gas mileage in cars B. reducing public transportation C. evaporative cooling D. reusing materials E. Electrical energy F. biological diversity G. Burning biofuels H. Adoption of geothermal energy Answer:
H
qasc
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What happens when the kidneys cannot remove wastes from the blood? A. tissue failure B. intestinal failure C. choanocyte failure D. kidney failure Answer:
D
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. A false negative in sampling can only occur for itemsets with support smaller than A. the threshold s B. p*s C. p*m D. None of the above Answer:
D
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Why do block ciphers use modes of operation? A. it is necessary for the decryption to work. B. to be provably secure. C. to use keys of any size. D. to encrypt messages of any size. Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. The Kerckhoffs principle states that the security of a cryptosystem should rely on the secrecy of\dots A. the key only B. the algorithm only C. the channel only D. the participants' identity only Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Which cryptographic primitive(s) is (are) used in S/Key - OTP ? A. Only encryption and a hash function B. Only encryption and a MAC algorithm C. Only a hash function D. Only a MAC Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. The number of plaintext/ciphertext pairs required for a differential cryptanalysis is\dots A. $\approx DP$ B. $\approx \frac{1}{DP}$ C. $\approx \frac{1}{DP^2}$ D. $\approx \log \frac{1}{DP}$ 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 can cause objects to repel each other? A. electromagnetic energy B. mass C. Electrical energy D. gravitation E. electrical currents F. photosynthesis G. the Great Barrier Reef H. electricity Answer:
E
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. The types of white blood cells that arrive at an inflamed site depend on the nature of what? A. injury or infection B. genes C. skin color D. blood type Answer:
A
sciq
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What location that had a disaster in 2017 was caused by heavy rains? A. San Francisco B. Houston C. Mexico City D. Tokyo Answer:
B
openbookqa
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. A 128-bit key ... A. has 128 decimal digits. B. is too long for any practical application. C. provides reasonable security for at least four decades. D. adresses $n^2$ problem for $n=2^{64}$. Answer:
A
m1_preference
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. The transmitted light strikes a photoelectric tube, which converts the light energy to? A. gas B. color C. electricity D. heat Answer:
C
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What is a species that plays an especially important role in it's community called? A. complement B. keystone C. Invasive D. Leader Answer:
B
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What term describes precipitation that flows over the surface of the land? A. runoff B. waves C. flood D. erosion Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What is the form of genetic material used during mitosis called? A. proteins B. Plants growth C. genetic fluid D. mitosis cells E. chromosomes F. pollen G. Leptospirosis H. Chemical energy Answer:
E
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Which of the following is well preserved by 2G? A. Confidentiality B. Message Integrity C. Challenge freshness D. Authentication of Mobile Station 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 are true regarding the lengths of integers in some base \(b\) (i.e., the number of digits base \(b\)) in different bases, given \(N = (FFFF)_{16}\)? A. \((N)_2\) is of length 16 B. \((N)_{10}\) is of length 40 C. \((N)_4\) is of length 12 D. \((N)_4\) is of length 4 Answer:
A
m1_preference
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. antigens are found on cancer cells and the cells of transplanted what? A. h2o B. kidneys C. genetics D. operation E. lungs F. the skin G. epidermal H. alveoli 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 statement(s) is/are correct? Question Options: 1. An information leak can be a preparation step of control-flow hijacking. 2. An attacker-controlled format string can lead to arbitrary write. 3. In format strings, \%n prints a hex value 4. When constructing a ROP payload, we use gadgets from all currently running processes A. An information leak can be a preparation step of control-flow hijacking. B. An attacker-controlled format string can lead to arbitrary write. C. In format strings, \%n prints a hex value D. When constructing a ROP payload, we use gadgets from all currently running processes 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) is “x is an elephant” and F(x) is “x flies” and the domain consists of all animals. Translate the following statement into English: ∃!x(P(x) ∧ F(x)) A. There exists only one elephant that can fly B. There is an animal that flies if it’s an elephant C. All elephants fly D. Some elephants can flyv E. None of the other options Answer:
A
m1_preference
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. what unit of time can be estimated by the rings in a tree trunk? A. hours B. decades C. months D. H20 E. Joules F. DNA G. years H. seasons Answer:
G
qasc
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. The Moore law A. implies the key size is doubled every every 18 months to preserve confidentiality B. says that CPU speed doubles every 18 months C. has no relevance for cryptography since it only considers speed of computation D. states that anything that can go wrong will Answer:
A
m1_preference
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. How many variables are used to describe the condition of a gas? A. one B. three C. four D. five Answer:
C
sciq
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Tick the \emph{false} assertion about Diffie and Hellman. A. They wrote an article entitled ``\emph{New directions in Cryptography}'' in 1976. B. They introduced the notion of ``\emph{trapdoor permutation}''. C. They proposed a key agreement protocol. D. They invented RSA. Answer:
A
m1_preference
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. the production of primordia cause roots to A. Bend B. grow C. loss D. expand E. growth F. Rise G. mildew H. die Answer:
B
qasc
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. a lawn mower converts _ into motion A. kinetic energy B. flow of electrons C. hydrocarbons D. energy E. Greenhouse gasses F. heat energy G. fossil fuels H. Greenhouse gases Answer:
C
qasc
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Modularity clustering will end up always with the same community structure? A. True B. Only for connected graphs C. Only for cliques D. False Answer:
D
m1_preference
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Which can breath in the water? A. whale B. sharks C. fish D. clams E. beaver F. Frogs G. squids H. snake Answer:
C
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. (Alternating Least Squares \& Matrix Factorization) For optimizing a matrix factorization problem in the recommender systems setting, as the number of observed entries increases but all $K, N, D$ are kept constant, the computational cost of the matrix inversion in Alternating Least-Squares increases. Answer:
A
m1_preference
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. What kind of surface temperature is found on venus? A. cold B. a little hot C. extremely high D. cool Answer:
C
sciq
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. People with type o blood are often called what? A. universal donors B. flexible donors C. complete donors D. likely donors Answer:
A
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. If a living animal is going to be in an ideal situation, at a minimum it will have A. a residence B. a beating C. a sled D. a liver transplant Answer:
A
openbookqa
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. In plants, a high concentration of iaa inhibits what? A. Cell reproduction B. same elongation C. technology elongation D. cell elongation Answer:
D
sciq
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. humans changing animal habitats usually causes harm to A. the residential things B. sneakers C. rocks D. clouds Answer:
A
openbookqa
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Tick the \emph{false} assertion. Given a ring $R$, $R^\star$ is\ldots A. a group. B. the set of invertible elements in $R$. C. $R-\{0\}$. D. the set of units. Answer:
A
m1_preference
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Which part of the earth is made of the rigid, brittle, solid crust and uppermost mantle? A. atmosphere B. thermosphere C. troposphere D. lithosphere Answer:
D
sciq
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Consider our standard least-squares problem $$ \operatorname{argmin}_{\mathbf{w}} \mathcal{L}(\mathbf{w})=\operatorname{argmin}_{\mathbf{w}} \frac{1}{2} \sum_{n=1}^{N}\left(y_{n}-\mathbf{x}_{n}^{\top} \mathbf{w}\right)^{2}+\frac{\lambda}{2} \sum_{d=1}^{D} w_{d}^{2} $$ Here, $\left\{\left(\mathbf{x}_{n} y_{n}\right)\right\}_{n=1}^{N}$ is the data. The $N$-length vector of outputs is denoted by $\mathbf{y}$. The $N \times D$ data matrix is called $\mathbf{X}$. It's rows contain the tuples $\mathbf{x}_{n}$. Finally, the parameter vector of length $D$ is called $\mathbf{w}$. (All just like we defined in the course). Mark any of the following formulas that represent an equivalent way of solving this problem. A. $\operatorname{argmin}_{\boldsymbol{\alpha}} \frac{1}{2} \boldsymbol{\alpha}^{\top}\left(\mathbf{X X}^{\top}+\lambda \mathbf{I}_{N}\right) \boldsymbol{\alpha}-\boldsymbol{\alpha}^{\top} \mathbf{y}$ B. $\operatorname{argmin}_{\mathbf{w}} \sum_{n=1}^{N}\left[1-y_{n} \mathbf{x}_{n}^{\top} \mathbf{w}\right]_{+}+\frac{\lambda}{2}\|\mathbf{w}\|^{2}$. Recall: $[z]_{+}=\max \{0, z\}$ C. $\operatorname{argmin}_{\mathbf{w}}-\log p(\mathbf{y} \mid \mathbf{X}, \mathbf{w}) p(\mathbf{w})$, where $p(\mathbf{w})$ correspond to the density of a $D$-length vector of iid zero-mean Gaussians with variance $1 / \lambda$ and $p(\mathbf{y} \mid \mathbf{X}, \mathbf{w})$ corresponds to the density of a vector of length $N$ of independent Gaussians of mean $\mathbf{x}_{n}^{\top} \mathbf{w}$, variance 1 and observation $\mathbf{y}_{n}$ for component $n$. D. $\square \operatorname{argmin}_{\mathbf{w}} \frac{1}{2} \sum_{n=1}^{N} \ln \left(1+e^{\mathbf{x}_{n}^{\top} \mathbf{w}}\right)-y_{n} \mathbf{x}_{n}^{\top} \mathbf{w}$ E. $\operatorname{argmin}_{\mathbf{w}} \frac{1}{2}\|\mathbf{y}-\mathbf{X} \mathbf{w}\|^{2}+\frac{\lambda}{2}\|\mathbf{w}\|^{2}$ Answer:
A
m1_preference
The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. Different species such as what take up in the wetlands? A. ferns B. the moon C. herons D. bushes E. wetlands F. polar bears G. plants H. animals Answer:
C
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. what is fan speed? A. energy barrier B. kinetic energy C. fixed D. cycles E. Winter F. static G. solid H. adjustable Answer:
H
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The following are multiple choice questions (with answers) about knowledge and skills in advanced master-level STEM courses. How much electricity is generated by an average car battery? A. ten volts B. six volts C. eight volts D. twelve volts Answer:
D
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