Computing & Informatics - short answer questions from AMIE exams

State Moore's law.
Moore's law refers to an observation made by Intel co-founder Gordon Moore in 1965. He noticed that the number of transistors per square inch on integrated circuits had doubled every year since their invention. Moore's law predicts that this trend will continue into the foreseeable future.

What is the full form of ENIAC?
Electronic Numerical Integrator and Computer. The Electronic Numerical Integrator And Computer (ENIAC) was the very first general-purpose electronic computer. It was designed primarily to calculate artillery firing tables to be used by the United States Army's Ballistic Research Laboratory to help US troops during World War II.

What is a Baud rate?
  • The baud rate of a data communications system is the number of symbols per second transferred. 
  • Baud rate is commonly used when discussing electronics that use serial communication. In the serial port context, "9600 baud" means that the serial port is capable of transferring a maximum of 9600 bits per second.
  • At baud rates above 76,800, the cable length will need to be reduced. The higher the baud rate, the more sensitive the cable becomes to the quality of installation, due to how much of the wire is untwisted around each device.
What is a NULL pointer?
A null pointer is a special reserved value of a pointer. A pointer of any type has such a reserved value. Formally, each specific pointer type ( int * , char * etc.) has its own dedicated null-pointer value. Conceptually, when a pointer has that null value it is not pointing anywhere.

What is the similarity between a structure, union and enumeration?
All of them let you define new data types.

In C syntax, define a structure named Student. It should contain the name of the student (a string of 20 characters) and roll number (integer).
Struct student
{
char name [20]
int roll_no;
}

What is the maximum number of comparison operations required to search a given integer from an array of 1000 linearly ordered integers using binary search?
log₂(1000) = x
Hence 2x = 1000 
By trial and error, x = 9.965 say 10.

In C syntax, write a code snippet to open a file named marks.dat and print out all the marks (integer) stored in it. Assume that it contains only marks (integer) and no other data.
fp = fopen (“marks.dat”, “r”);
while (f scanf (fp, “%d”, & data) = = 1)
{
printf (“\n%d”, data)
};

Name a popular LAN protocol.
Ethernet is the most widely used local area network protocol. Ethernet is the most widely used LAN technology, which is defined under IEEE standards 802.3. The reason behind its wide usability is Ethernet is easy to understand, implement, maintain and allows low-cost network implementation.

Write the truth table for a 1 -bit half adder.


---
The study material for AMIE/B Tech/Junior Engineer exams is available at https://amiestudycircle.com

Popular posts from this blog

Meaning of AeSI withdrawing case from Delhi High Court and its implications for IEI

Image
There is breaking news - AeSI withdraws case from Delhi High Court on 27-05-2022. Does it mean that Aeronautical Society of India (AeSI)  is no more interested in conducting Section A and B exams and will only give membership? At first glance, it looks so. Fortunately, this conclusion is not true. To understand this let us go back to the past, just nine months back.  But first, let us understand what the problem is. The MHRD - AICTE in 2013 (and beyond), derecognised the equivalence criteria between engineering professional bodies (IEI, AeSI, IETE, IME, ICE and more such professional bodies) - Section A and Section B passed candidates, with that of B. Tech degree from an Indian University. In 2018, fresh admission was on hold as per the order given by Delhi High Court. Now, back to our story, AeSI came up with a better plan -  AeSI signed an MoU with Hindustan Institute of Technology & Science, Chennai (HITS)  in 2021. According to this MoU, students of Aeronautical Society who
Read more

AMIE aspirants are at crossroads—whether to continue/discontinue AMIE in the present scenario?

Image
  A lot of AMIE aspirants are at cross roads—whether to continue/discontinue AMIE in present scenario when fresh AMIE admissions and re-registration are suspended till further orders. The case is being fought in Delhi High Court and nobody knows the outcome. The social media is full of rumours which are void of substance. Under such a backdrop, a million-pound question is—should an AMIE aspirant, who is eligible to continue his AMIE, should stop or appear in whatever semesters left. Remember, stopping doing AMIE now may lead to loss of money and your hard core efforts. AMIE is still the cheapest option with so many advantages . You might have to spend many times more money joining AMIE in new protocol and with number of subjects almost double and practicals as many as 40! In our opinion, they must continue with it and try to finish their AMIE at the earliest. There is no harm in doing so as it is the lowest cost option for working aspirants. It would work as a fixed deposit—will benef
Read more

72 posts of Junior Draftsman in Punjab Subordinate Selection Service Board (PSSSB)

Department: Punjab Subordinate Selection Service Board (PSSSB) Post: Junior Draftsman (Civil/Electrical/Mechanical) Number of posts: 72 Eligibility: ITI in relevant trade or Diploma or Degree in Civil/Electrical/ Mechanical Engineering Last Date: 08-07-2022 (Extended) Written Test: Yes Download notification Application Form Extended Study Material & free samples for Junior Engineer Level Exams --- The study material for AMIE/B Tech/Junior Engineer exams is available at https://amiestudycircle.com
Read more