Technical Questions

Q:

Can you suggest any other way of writing the following expression such that 30 is used only once?

a <= 20 ? b = 30 : c = 30 ;

Answer

*( ( a <= 20 ) ? &b : &c ) = 30;

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Subject: Programming

1 2209
Q:

How many bits are in a MAC address?

A) 64 B) 48
C) 32 D) 16
 
Answer & Explanation Answer: B) 48

Explanation:

MAC - Media Access Control, address is a globally unique identifier assigned to network devices, and therefore it is often referred to as hardware or physical address.

 

MAC addresses are 6-byte (48-bits) in length, and are written in MM:MM:MM:SS:SS:SS format.

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0 2201
Q:

What is DRAM? In which form does it store data?

Answer

DRAM is not the best, but it’s cheap, does the job, and is available almost everywhere you look. DRAM data resides in a cell made of a capacitor and a transistor. The capacitor tends to lose data unless it’s recharged every couple of milliseconds, and this recharging tends to slow down the performance of DRAM compared to speedier RAM types.

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1 2197
Q:

What is region?

Answer

When hierarchical routing is used, the routers are divided into what we call regions, with each router knowing all the details about how to route packets to destinations within its own region, but knowing nothing about the internal structure of other regions

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Subject: Networking
Job Role: Network Engineer

0 2197
Q:

How many interrupts are there in 8085?

Answer

There are 12 interrupts in 8085.

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Subject: Hardware

0 2197
Q:

What is cache memory?

Answer

Cache momory is a small high-speed memory. it is used for temporary storage of data & information between the main memory and the CPU(center processing unit). The cache memory is only in RAM.


Cache memory is random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. AS the microprocessor processes data, it looks in the cache memory and if it finds the data there.

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Subject: Hardware

0 2193
Q:

What is the logical difference b/w Move A to B and COMPUTE B=A?

Answer

In case of Move A to B it will move whatever the value of A into B.It mean it will move numeric, alphanumeric and alphabatic value.


In case of COMPUTE B=A it will assign the value of A into B. But in case of compute only numeric value will be compute.

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Subject: Hardware

0 2191
Q:

What is the difference between the following declarations?

extern int fun();

int fun();

Answer

There is no difference except for the fact that the first one gives a hint that the function fun() is probably in another source file.

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Subject: Programming

0 2188