IT Trainer Questions


Q:

Lichens are the best indicator of

A) Air pollution B) Sound pollution
C) Noise pollution D) Water pollution
 
Answer & Explanation Answer: A) Air pollution

Explanation:

1. Lichens are plants that grow in exposed places such as rocks or tree bark.

 

2.  Lichens are widely used as environmental indicators or bio-indicators. They can be used as air pollution indicators, especially of the concentration of sulfur-di-oxide in the atmosphere.  

 

3. They need to be very good at absorbing water and nutrients to grow there.

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Q:

HTML language is a set of markup

A) Groups B) Attributes
C) Tags D) Sets
 
Answer & Explanation Answer: C) Tags

Explanation:

HTML language is a set of markup tags. The code used to specify the formatting are called tags. Markup languages are designed for the processing, definition and presentation of text. The language specifies code for formatting, both the layout and style, within a text file. 

 

HTML is an example of a markup language to improve the appearance of, and link text with data on the internet.

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Q:

 What is the name of the virus that fool a user into downloading and executing them by pretending to be useful applications  ?

A) Trojan horses B) Keylogger
C) Worm D) File virus
 
Answer & Explanation Answer: A) Trojan horses

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams , CAT
Job Role: Analyst , IT Trainer

32 11920
Q:

FRIEND : FPIBNZ :: PATRON : ? 

A) PTYOPI B) PYTOPJ
C) PYTOOJ D) PYTPOJ
 
Answer & Explanation Answer: C) PYTOOJ

Explanation:

FRIEND : FPIBNZ

Follows a pattern that,

F - F

R- second letter to left of R i.e, P

I - I

E - Third letter to left of E i.e, B

N - N

D - Fourth letter to left of D i.e, Z

Similarly, for PATRON 

P - P

A -  second letter to left of A i.e, Y

T - T

R - Third letter to left of R i.e, O

O - O

N - Fourth letter to left of N i.e, J

PATRON : PYTOOJ

 

Therefore, FRIEND : FPIBNZ :: PATRON : PYTOOJ

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46 11908
Q:

The modulus of elasticity for mild steel is approximately equal to

A) 210 kN/mm2 B) 100 kN/mm2
C) 80 kN/mm2 D) 10 kN/mm2
 
Answer & Explanation Answer: A) 210 kN/mm2

Explanation:

It is useful to have a property of a material that is independent of the size of the sample and can be use to compare its elastic properties with another - this is called the Modulus of Elasticity for the material.

The modulus of elasticity is defined as:

 

Modulus of elasticity = Stress / Strain

 

There are three types of moduli. They are :

(a) the Young Modulus - tensile and compression longitudinal stress

(b) the shear modulus - a shearing stress

(c) the bulk modulus - volume changes of the specimen.

 

mod-compressor1528180544.jpg image

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

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Q:

Main storage is also called

A) Memory B) Control unit
C) Accumulator D) Register unit
 
Answer & Explanation Answer: A) Memory

Explanation:

In a computer, the area where the data is stored for the quick access by the computer's processor is called Main storage or Primary storage or Memory or RAM.

 

Hence, main storage is also called Memory.

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Q:

What is the name of the service included with the Windows Server operating system that manages a centralized database containing user account and security information ?

A) Windows Directory B) Active Directory
C) Directory Plus D) None of the above
 
Answer & Explanation Answer: B) Active Directory

Explanation:

Active Directory (AD) is a centralized database that is included with the Windows Server operating system. Active Directory is used to store information about a network, such as user accounts, computers, printers, and security policies.

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Q:

Which of the following statements about inheritance is false?

A) Inheritance allows you to minimize the amount of duplicate code in an application by sharing common code among several subclasses. B) A subclass inherits all the members (fields, methods, and nested classes) from its superclass.
C) Through inheritance, a parent class is a more specialized form of the child class. D) Inheritance allows you to reuse the fields and methods of the super class without having to write them yourself.
 
Answer & Explanation Answer: C) Through inheritance, a parent class is a more specialized form of the child class.

Explanation:
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Filed Under: Java
Job Role: Analyst , Database Administration , IT Trainer

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