Questions

Q:

Which of the following describes a relational database?

A) It retrieves data related to its queries B) It provides a relationship between floats
C) It provides a relationship between integers D) It consists of separate tables or related data
 
Answer & Explanation Answer: D) It consists of separate tables or related data

Explanation:

A relational database is a digital database based on the relational model of data, a database structured to recognize relations between stored items of information. A software system used to maintain relational databases is a relational database management system.

 

Computer database in which all data is stored in Relations which (to the user) are tables with rows and columns. Each table is composed of records (called Tuples) and each record is identified by a field (attribute) containing a unique value. Every table shares at least one field with another table in 'one to one,' 'one to many,' or 'many to many' relationships. These relationships allow the database user to access the data in almost an unlimited number of ways, and to combine the tables as building blocks to create complex and very large databases.

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Q:

How long is an IPv4 address?

A) 128 bytes B) 32 bits
C) 32 bytes D) 128 bits
 
Answer & Explanation Answer: B) 32 bits

Explanation:

Internet Protocol version 4 (IPv4) which defined an IP address as a 32-bit value

IPv4 is in contrast to IPv6, which defined an IP address as a 128 bits value.

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Filed Under: Networking
Job Role: Analyst , Bank Clerk , Network Engineer

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Q:

Not including the sun, the closest stars to earth are

A) 4300 light-years away B) 430 light-years away
C) 43 light-years away D) 4.3 light-years away
 
Answer & Explanation Answer: D) 4.3 light-years away

Explanation:

The nearest stars to Earth are in the Alpha Centauri triple-star system, about 4.37 light-years away. One of these stars, Proxima Centauri, is slightly closer, at 4.26 light-years.

 

Of all the stars closer than 15 light-years, only two are spectral type G, similar to our sun: Alpha Centauri A and Tau Ceti. The majority are M-type red dwarf stars.

 

Only nine of the stars in this area is bright enough to be seen by the naked human eye from Earth. These brightest stars include Alpha Centauri A and B, Sirius A, Epsilon Eridani, Procyon, 61 Cygni A and B, Epsilon Indi A and Tau Ceti.

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Q:

Which is the second most abundant metal in the earth's crust

A) Iron B) Aluminum
C) Copper D) Zinc
 
Answer & Explanation Answer: B) Aluminum

Explanation:
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Filed Under: World Geography

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Q:

Which planet experiences the volcano with the name of "Arsia Mon"  ?

A) Earth B) Mars
C) Jupiter D) None
 
Answer & Explanation Answer: B) Mars

Explanation:

Arsia Mons is among the three volcanos of the planet Mars. Arsia Mons is a shield volcano with a slow slope. Arsia Mons is thirty times in volumes of Mauna Loa in Hawaii, the largest volcano on Earth.

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Filed Under: World Geography
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Q:

Every year " National Maritime Day of India " is observed on

A) 1st April B) 2nd Aril
C) 4th April D) 5th April
 
Answer & Explanation Answer: D) 5th April

Explanation:

National Maritime Day of India is observed every year on 5th April. On this day in 1919, S S Loyalty, the first ship of the Scindia Steam Navigation Company, journeyed to the United Kingdom.

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Filed Under: Important Days and Years
Exam Prep: Bank Exams

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Q:

Application layer protocol defines

A) message format, syntax and semantics B) rules for when and how processes send and respond to messages
C) types of messages exchanged D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Application layer protocol defines types of messages exchanged, message format, syntax and semantics and rules for when and how processes send and respond to messages.

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Filed Under: Networking
Exam Prep: AIEEE
Job Role: Network Engineer

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Q:

What is the major monosaccharide found in the body?

A) Galactose B) Sucrose
C) Fructose D) Glucose
 
Answer & Explanation Answer: D) Glucose

Explanation:

Glucose is the major monosaccharide found in the body. It is absorbed directly into the bloodstream duringdigestion and a vital carbohydrate as it is a source of energy.

 

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Filed Under: General Science
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