# BMA Special Course Questions 2023 – Signals Corps

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The BMA Special CourseΒ is a prestigious course that provides in-depth training on the importance of signals corps in military operations. The course curriculum is designed to provide a comprehensive understanding of the technical aspects of signals corps, including computer science and engineering. The course is essential for individuals who wish to serve in the signals corps and contribute to the success of military operations.

## BMA Special Course Questions

Signals corps play a crucial role in military operations, as they are responsible for ensuring that communication lines remain open and secure. The ability to communicate effectively and efficiently is essential for the success of any military operation, and signals corps are at the forefront of this effort.

The course emphasizes the importance of signals corps in military operations and provides students with the necessary skills and knowledge to excel in this field.

The objectives of the BMA Special Course QuestionsΒ are to provide students with a comprehensive understanding of the technical aspects of signals corps, including computer science and engineering, and to prepare them for a successful career in this field.

The course is designed to challenge students and push them to their limits, with a focus on hands-on training and real-world scenarios. By the end of the course, students will have the necessary skills and knowledge to serve in the signals corps and contribute to the success of military operations.

### 46 BMA Special Course Questions – Signals Corps

1. Write the TCP/IP model layer? Describe all layers. 10
2. What is the token in C? Explain. 10
3. Difference between Switch and Router. 10
4. Difference between TCP and UDP. 10
5. IP Classes and their range. 10
7. True / False [There was 10 statements]. 20
8. Define Bandwidth and latency .10

### 47 BMA Special Course Questions – Signals Corps

1. Some T/F Questions of Basic Electric & Electronics Basically current (AC/DC), Battery, voltage, etc. (10)

2. Some multiple choice Questions on Electric & Electronics Basically current (AC/DC), Battery, voltage, etc. (20)

3. What is data structure? How many data structures are represented in RDBMS, Network Model? (10)

4. IPV6 Network Diagram? (10)

Β 5. What are BIT and BYTE? (10)

6. What are LAN and WAN? (10)

7. Write any four (20)Β a. Wi-Max b. 3G Technology c. ATM d. Transformer e. WWW

### 49 BMA Special Course Questions – Signals Corps

1. EDGE is currently standard in which region: (a)South Asia (b)Egypt (c)Africa (d) All
2. Where the variable of the program is stored: (a) RAM (b)ROM (c) Stack (d) Register
3. Which one is in the range of 1 GHz to 30 GHz: (a) Microwave (b) Radio Wave (c) (d)
4. GSM is a standard adopted in which of the following region of the world.
5. In which place you would declare data in order to expose it to the rest of the program.

6. Voice is recorded in what bit rate.
7. Which of the following is the service not given by GSM?
8. What is the component of an uplink satellite transmitter?
9. What technique is used between the two exchanges?
10. What is the main component of an earth station?
11. Write Short notes on LAN, WAN, BIT, and BYTE (10)
12. What is the basic network topology? Explain two of them. (10)
13. Write short notes on (20)
14. EDGE
15. Wi-MAX
16. CDMA
17. GSM
18. What is multiplexing? (04)
19. Explain FDMA and TDMA. Write down the advantage & disadvantages of both of them. (16)
20. What is data structure? (04)
21. Write down the area where the data structure is extensible used. (08)
22. Consider the following weighted graph. Find the minimum Spanning tree from the graph. (08)
23. Write a program to calculate the factorial of a number. (20)

### 50 BMA Special Course Questions – Signals Corps

1. πΈπ₯πππππ π‘βπ π‘π¦πππ  ππ π‘ππππ πππ π πππ πππππ . (10)

2. πβππ‘ πππ π‘βπ πππππππππ‘ π‘π¦πππ  ππ πππ‘π€ππππ ? πΈπ₯πππππ ππ πππ‘πππ. (10)

3. πβππ‘ ππ  π΄π‘π‘πππ’ππ‘πππ? (5)

4. πΈπ₯πππππ π΄π, πΉπ, πππ ππ. (10)

5. πβππ‘ ππ  πππππ¦πππππππ? (5)

6. πβπππ‘ πππ‘π: π΄ππ, ππππ, πΉππ, πππ (20)

7. ππππ‘π π πππππππ π‘π ππππ πππππ ππ’πππππ . (20)

The Solutions of all these Questions are:

### 53 BMA Special Course Questions – Signals Corps

1. πβππ‘ ππ  ππ? πΌπππππ‘πππ‘ ππππ ππ ππ
2. π·π»πΆπ πππ ππ‘π  ππππππ‘ππππ
3. πππΏ πππ βππ€ ππ‘ π€ππππ
4. πππ πππ ππππππ‘ππππ
5. πππππππ¦ πππ¦ π π’πππ πππππππ πππ¦ ππππππππ‘π πππ¦
6. π΄ππ πππ βππ€ ππ‘ π€ππππ
7. πΌππ£6 ππππππβπππ ππππ-π ππ’πππ π πππ‘π€πππ
8. πΆπππππππππ‘π¦ ππ πππ‘ππππ π
9. π»π’π π π€ππ‘πβ πππ’π‘ππ ππππππππππ
10. πππ¦π  ππ πππ‘π π‘ππππ πππ π πππ
11. πΆπππ ππ¦ π£πππ’π πππ ππππ ππ¦ πππππππππ
12. ππ’ππππ‘
13. ππππ¦ππππβππ π ππ π++ ππ ππ’ππ ππππ ππ πΊπΆπ·

### 54 BMA Special Course Questions – Signals Corps

What is Kernel?
Illustrate DNS with a diagram.
What is ARP?
Write C program:
Fibonacci Number
Small letter to Capital letter
What is Network Topology? Write types of Network Topology.
Digital Encryption System (DES)
Define primary and candidate key
Aggregation in database function
Function dependency in database
Using IP, Host, and Subnet address, 1st Subnet start and finishes IP
DHCP four steps process.

### 55 BMA Special Course Questions – Signals Corps

##### 1. Write a C code to sort any four item, what is pointer

#include <stdio.h>
#include <stdlib.h>
Β
int main()
{
Β  Β  int arr[] = {5, 8, 7, 1};
Β  Β  int temp = 0;Β
Β  Β  int length = sizeof(arr)/sizeof(arr[0]);Β

Β  Β  for (int i = 0; i < length; i++) {
Β  Β  Β  Β  for (int j = i+1; j < length; j++) {
Β  Β  Β  Β  Β  Β if(arr[i] > arr[j]) {
Β  Β  Β  Β  Β  Β  Β  Β temp = arr[i];
Β  Β  Β  Β  Β  Β  Β  Β arr[i] = arr[j];
Β  Β  Β  Β  Β  Β  Β  Β arr[j] = temp;
Β  Β  Β  Β  Β  Β }
Β  Β  Β  Β  }
Β  Β  }
Β  Β  printf(“Elements of array sorted in ascending order: \n”);
Β  Β  for (int i = 0; i < length; i++) {
Β  Β  Β  Β  printf(“%d “, arr[i]);
Β  Β  }
Β  Β  return 0;
}

Pointer: The Pointer in C, is a variable that stores the address of another variable. The purpose of the pointer is to save memory space and achieve faster execution time. The declaration form of the pointer is β

type *var-name;

Here, type is the pointer’s base type and var-name is the name of the pointer variable.

## BMA Special Course Questions and Answers

##### 2. Short note: kernel, DNS, oop, normalization

Kernel:Β The kernel is a central component of an operating system that manages operations of computers and hardware. Kernel acts as a bridge between applications and data processing performed at the hardware level using inter-process communication and system calls.

DNS:Β A DNS server is a computer with a database containing the public IP addresses associated with the names of the websites. DNS acts like a phonebook for the internet. Whenever people type domain names, like army.mil.bd, into the address bar of web browsers, the DNS finds the right IP address. The siteβs IP address is what directs the device to go to the correct place to access the siteβs data.

OOP:Β Object-Oriented Programming (OOP) is a programming concept in which a programmer uses classes and objects to implement real-world things in software development, such as inheritance, hiding, and polymorphism.The fundamental purpose of OOP is to connect data and required functions so that no other section of the code may access them.

Normalization:Β Normalization is the process of organizing data in a database. It is used to minimize the redundancy from a relation or set of relations. It is also used to eliminate undesirable characteristics like Insertion, Update, and Deletion Anomalies. It divides the larger table into smaller ones and links them using relationships.

## BMA special course preparation

##### 3. SQL injection, primary key, super key, exam of class b and c network?

SQL injection:Β SQL Injection is a type of an injection attack that makes it possible to execute malicious SQL statements to steal valuable information from database and destroy or alter data in database. With SQL injection a hacker can change the valuable information of database server.

Primary key:Β Β Primary key is a attribute in a table which can uniquely identifies each tuple in a database table. Primary keys must contain unique values also primary key column cannot have NULL values.

Super Key:Β Super key is a single attribute or a group of multiple attributes that can uniquely identify tuples in a table. Super key can contain redundant values. Candidate keys are a sub set of super keys.Β

Example of class b and c network :Β

IP address is a unique address that identifies a device on the internet or a local network.