BMA Special Course Questions 2023 – Signals Corps

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The BMA Special Course 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 Questions 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
6. Differentiate physical address, logical address and port address. 10
7. True / False [There was 10 statements]. 20
8. Define Bandwidth and latency .10
9. Write about VPN. 10
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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)

 5. What are BIT and BYTE? (10)

6. What are LAN and WAN? (10)

7. Write any four (20) 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)
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50 BMA Special Course Questions – Signals Corps

1. 𝐸𝑥𝑝𝑙𝑎𝑖𝑛 𝑡ℎ𝑒 𝑡𝑦𝑝𝑒𝑠 𝑜𝑓 𝑡𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛 𝑚𝑜𝑑𝑒𝑠. (10)

2. 𝑊ℎ𝑎𝑡 𝑎𝑟𝑒 𝑡ℎ𝑒 𝑑𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑡 𝑡𝑦𝑝𝑒𝑠 𝑜𝑓 𝑛𝑒𝑡𝑤𝑜𝑟𝑘𝑠? 𝐸𝑥𝑝𝑙𝑎𝑖𝑛 𝑖𝑛 𝑑𝑒𝑡𝑎𝑖𝑙. (10)

3. 𝑊ℎ𝑎𝑡 𝑖𝑠 𝐴𝑡𝑡𝑒𝑛𝑢𝑎𝑡𝑖𝑜𝑛? (5)

4. 𝐸𝑥𝑝𝑙𝑎𝑖𝑛 𝐴𝑀, 𝐹𝑀, 𝑎𝑛𝑑 𝑃𝑀. (10)

5. 𝑊ℎ𝑎𝑡 𝑖𝑠 𝑃𝑖𝑔𝑔𝑦𝑏𝑎𝑐𝑘𝑖𝑛𝑔? (5)

6. 𝑆ℎ𝑜𝑟𝑡 𝑛𝑜𝑡𝑒: 𝐴𝑇𝑀, 𝑆𝑀𝑇𝑃, 𝐹𝑇𝑃, 𝑊𝑊𝑊 (20)

7. 𝑊𝑟𝑖𝑡𝑒 𝑎 𝑝𝑟𝑜𝑔𝑟𝑎𝑚 𝑡𝑜 𝑓𝑖𝑛𝑑 𝑝𝑟𝑖𝑚𝑒 𝑛𝑢𝑚𝑏𝑒𝑟𝑠. (20)

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53 BMA Special Course Questions – Signals Corps

  1. 𝑊ℎ𝑎𝑡 𝑖𝑠 𝑂𝑆? 𝐼𝑚𝑝𝑜𝑟𝑡𝑎𝑛𝑡 𝑅𝑜𝑙𝑒 𝑜𝑓 𝑂𝑆
  2. 𝐷𝐻𝐶𝑃 𝑎𝑛𝑑 𝑖𝑡𝑠 𝑖𝑚𝑝𝑜𝑟𝑡𝑎𝑛𝑐𝑒
  3. 𝑈𝑅𝐿 𝑎𝑛𝑑 ℎ𝑜𝑤 𝑖𝑡 𝑤𝑜𝑟𝑘𝑠
  4. 𝑂𝑂𝑃 𝑎𝑛𝑑 𝑖𝑚𝑝𝑜𝑟𝑡𝑎𝑛𝑐𝑒
  5. 𝑃𝑟𝑖𝑚𝑎𝑟𝑦 𝑘𝑒𝑦 𝑠𝑢𝑝𝑒𝑟 𝑓𝑜𝑟𝑒𝑖𝑔𝑛 𝑘𝑒𝑦 𝑐𝑎𝑛𝑑𝑖𝑑𝑎𝑡𝑒 𝑘𝑒𝑦
  6. 𝐴𝑅𝑃 𝑎𝑛𝑑 ℎ𝑜𝑤 𝑖𝑡 𝑤𝑜𝑟𝑘𝑠
  7. 𝐼𝑃𝑣6 𝑏𝑙𝑜𝑐𝑘𝑐ℎ𝑎𝑖𝑛 𝑜𝑝𝑒𝑛-𝑠𝑜𝑢𝑟𝑐𝑒 𝑠𝑜𝑓𝑡𝑤𝑎𝑟𝑒
  8. 𝐶𝑎𝑟𝑑𝑖𝑛𝑎𝑙𝑖𝑡𝑦 𝑜𝑓 𝑑𝑎𝑡𝑎𝑏𝑎𝑠𝑒
  9. 𝐻𝑢𝑏 𝑠𝑤𝑖𝑡𝑐ℎ 𝑟𝑜𝑢𝑡𝑒𝑟 𝑑𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑐𝑒
  10. 𝑊𝑎𝑦𝑠 𝑜𝑓 𝑑𝑎𝑡𝑎 𝑡𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛
  11. 𝐶𝑎𝑙𝑙 𝑏𝑦 𝑣𝑎𝑙𝑢𝑒 𝑎𝑛𝑑 𝑐𝑎𝑙𝑙 𝑏𝑦 𝑟𝑒𝑓𝑒𝑟𝑒𝑛𝑐𝑒
  12. 𝑆𝑢𝑏𝑛𝑒𝑡
  13. 𝑃𝑜𝑙𝑦𝑚𝑜𝑟𝑝ℎ𝑖𝑠𝑚 𝑖𝑛 𝑐++ 𝑃𝑠𝑒𝑢𝑑𝑜 𝑐𝑜𝑑𝑒 𝑜𝑓 𝐺𝐶𝐷

54 BMA Special Course Questions – Signals Corps

What is Kernel?
Illustrate DNS with a diagram.
What is ARP?
Write about the Firewall.
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.

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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>
 
int main()
{
    int arr[] = {5, 8, 7, 1};
    int temp = 0; 
    int length = sizeof(arr)/sizeof(arr[0]); 

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

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: 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: 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 site’s IP address is what directs the device to go to the correct place to access the site’s data.

OOP: 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: 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.

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

SQL injection: 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:  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: 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. 

Example of class b and c network : 

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

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4. Network and host finding from an ip, why use telnet or ssh from remote place

Subnet: A subnet mask is a 32 bits address used to distinguish between a network address and a host address in IP address. 

Telnet or SSH: Telnet and SSH are both network protocols that allow us to access and manage devices remotely. While SSH protocol is the better option, Telnet is still useful in some situations. It is important to remember that the main difference between Telnet and SSH is that SSH encrypts traffic in both directions, all data, including usernames and passwords. 

 

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