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Q:

The isotopes of chlorine with mass number 35 and 37 exist in the ratio of

A) 1:2 B) 2:3
C) 3:1 D) 3:4
 
Answer & Explanation Answer: C) 3:1

Explanation:
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Filed Under: Chemistry

Q:

 A mixture of sand and naphthalene can be separated by

A) Fractional distillation B) Sublimation
C) Chromatography D) Any of them
 
Answer & Explanation Answer: B) Sublimation

Explanation:
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Filed Under: Chemistry

Q:

The present worth of a bill due sometime hence is Rs. 1100 and the true discount on the bill is Rs. 110. Find the banker's discount and the banker's gain.

A) Rs.145 B) Rs.136
C) Rs.121 D) Rs.112
 
Answer & Explanation Answer: C) Rs.121

Explanation:

T.D. =Ö(P.W.*B.G)

B.G. =(T.D.)2/ P.W.      

       = Rs.[(110x110)/ 1100]

       = Rs. 11.

 

B.D.= (T.D. + B.G.) = Rs. (110 + 11) = Rs. 121.

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Filed Under: Banker's Discount

Q:

What is the difference between interior and exterior neighbor gateways?

Answer

Interior gateways connect LANs of one organization, whereas exterior gateways connect the organization to the outside world.

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Subject: Networking
Job Role: Network Engineer

Q:

What are 10Base2, 10Base5 and 10BaseT Ethernet LANs

Answer

10Base2—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband


signaling, with a contiguous cable segment length of 100


meters and a maximum of 2 segments.


 


10Base5—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband


signaling, with 5 continuous segments not exceeding 100


meters per segment.


 


10BaseT—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband


signaling and twisted pair cabling.

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Subject: Networking
Job Role: Network Engineer

Q:

Which command is used to return maximum value from result set?

A) MAX B) MIN
C) MAXIMUM D) MAXI
 
Answer & Explanation Answer: A) MAX

Explanation:

MAX command is used to return maximum value from result setMAX 

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Filed Under: Oracle Certification
Job Role: Database Administration

Q:

STUFF and REPLACE are used to replace characters in a string

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

Explanation:

They both are used to replace characters in a string

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Subject: Oracle Certification
Job Role: Database Administration

Q:

What is the difference between a Local and a Global temporary table?

Answer

Local :


Only available to the current Db connection for current user and are cleared when connection is closed.


Multiple users can’t share a local temporary table.


 


Global:


Available to any connection once created. They are cleared when the last connection is closed.


Can be shared by multiple user sessions

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Subject: Oracle Certification
Job Role: Database Administration