Questions

Q:

 Which of the following is required for the DB2 optimizer to consider a hash join strategy?

A) Optimization level 1 or above B) Equijion predicates
C) Registry variable DB_ANTIJOIN=YES D) SORTHEAP large enough to contain the tables being joined
 
Answer & Explanation Answer: B) Equijion predicates

Explanation:
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Q:

Stoichiometry is based on

A) Law of conservation of energy B) Law of conservation of mass
C) Newton's 1st law D) Kepler's law
 
Answer & Explanation Answer: B) Law of conservation of mass

Explanation:

Stoichiometry is a branch of chemistry deals with the calculations on reactants and products. It is based on the Law of conservation of mass where total mass of reactants is equal to total mass of products.

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Filed Under: Chemistry
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Q:

CM is about managing the different items in the product, and changes in them.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Configuration Management is a support for software in managing the different items in the product, and changes in them.

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Q:

Who is the youngest Asian to win the international Master's title?

Answer

Viswanathan Anand

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Q:

Suez Canal was completed in the year

A) 1859 B) 1869
C) 1871 D) 1889
 
Answer & Explanation Answer: B) 1869

Explanation:

Of the two international ship canals, the Suez is more important than the Panama. Constructed over a period of 10 years according to a plan of the French Engineer  Ferdinand de Lesseps, the Suez Canal was opened as early as 1869.

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Filed Under: World Geography

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Q:

Produces a usable form of energy for the cell

A) Lysosomes B) Vacuoles
C) Mitochondria D) Ribosomes
 
Answer & Explanation Answer: C) Mitochondria

Explanation:

We all know that, Mitochondria is the powerhouse of the cell. In both Plants and animals, it produces a usable form of energy.

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Filed Under: Biology
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Q:

Magnetism in materials is due to

A) Displacement of electrons B) Circular motion of electrons
C) Charges of neutrons D) All of the above
 
Answer & Explanation Answer: B) Circular motion of electrons

Explanation:

Magnetism in materials is due to circular motion of electrons.

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Filed Under: Physics
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Q:

A wire of copper having length I and area of cross-section A is taken and a current / is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be

A) P B) < P
C) > P D) 2P
 
Answer & Explanation Answer: C) > P

Explanation:

Aluminum has a resistivity varying from 2.65 to 2.82 × 10−8 Ω m.The resistivity of copper is generally given as: 1.72 x 10-8 Ω.m.So, since resistivity of aluminium is higher than that of copper, so Power dissipated will be greater than P. this is because rest of the factors (l, A and i) are constant.

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Filed Under: Physics
Exam Prep: Bank Exams

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