Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles by Bhanu Priya
Page 18 of 107
What are the new developments of cellular networks?
Cellular networks are the backbone technology enabling mobile phones, personal communication systems, and wireless networking. These networks use distributed, lower-power transmitters with shorter coverage areas instead of traditional high-power transmitter systems, creating a "cell-based" architecture that efficiently serves mobile devices across wide geographical areas. Unlike complete wireless technologies, cellular networks specifically refer to mobile network infrastructure that provides network access through a hierarchical system. Mobile devices connect to nearby base stations using air-based interfaces and standardized physical and link layer protocols. Each base station connects to a Mobile Switching Centre (MSC) that manages call setup, routing, and mobility ...
Read MoreWhat are the cellular network bandwidth capabilities and base station?
Cellular networks divide large geographical areas into smaller cells to provide wireless coverage for mobile devices. Each cell is served by a base station that manages communication within its coverage area. This cellular approach enables efficient spectrum reuse and seamless connectivity across vast regions. The cellular methodology addresses several key challenges including interference avoidance, handover between cells while maintaining service quality, coverage optimization, capacity management, and frequency reuse planning. Cellular Network Structure Cell A Cell B ...
Read MoreHow NAT improves the security of Network?
Network Address Translation (NAT) is a networking technique used to convert private IP addresses to public IP addresses and vice versa. Originally developed to address IPv4 address exhaustion, NAT also provides significant security benefits by creating a natural barrier between internal networks and external threats. IPv4 uses 32-bit addressing, providing approximately 4.3 billion unique addresses. However, with global internet users exceeding 7.8 billion and multiple devices per user (smartphones, laptops, tablets, IoT devices), the demand far outstrips supply. NAT enables multiple devices to share a single public IP address while maintaining separate private addresses internally. How NAT Improves ...
Read MoreWhat are the most popular wireless internet access technologies?
The two most popular wireless Internet access technologies are Wireless Local Area Network (WLAN) and Wide-area Wireless Access Network (WWAN). These technologies differ significantly in their coverage area, infrastructure, and use cases. WLAN (Wireless Local Area Network) WLAN uses locally placed radio transmitters called base stations or access points to provide Internet connectivity. End devices equipped with radio transceivers exchange data with these base stations to access network resources. Key Characteristics of WLAN Limited range − Coverage extends only a few tens of meters from the access point High-speed connectivity − Provides ...
Read MoreWhat are subnets and subnet masks in computer networks?
A subnet (short for sub-network) is a smaller network created by dividing a larger IP network into multiple segments. Subnet masks are used to determine which portion of an IP address identifies the network and which portion identifies the host within that network. Subnetting allows network administrators to efficiently manage IP address allocation, reduce network congestion, and improve security by creating logical boundaries within a larger network. How Subnet Masks Work A subnet mask consists of a series of consecutive 1s followed by consecutive 0s in binary format. The 1s represent the network portion, while the 0s ...
Read MoreWhat are flooding, static routing and dynamic routing?
Network routing is the process of determining the optimal path for data packets to travel from source to destination. There are three fundamental approaches to routing: flooding, static routing, and dynamic routing. Each method has distinct characteristics, advantages, and use cases in network communication. Flooding Flooding is the simplest routing technique that requires no network topology information, load conditions, or path cost calculations. When a node receives a packet, it forwards copies to all outgoing links except the one from which it arrived. This approach ensures that if any path exists between source and destination, the packet ...
Read MoreWhat is Silly Window Syndrome in TCP?
TCP is a transmission control protocol that provides reliable, connection-oriented communication between sender and receiver. It includes flow control mechanisms to prevent fast senders from overwhelming slow receivers, using a sliding window protocol to manage data transmission efficiently. Silly Window Syndrome is a performance problem in TCP that occurs when the effective window size becomes very small, leading to inefficient data transmission. This happens when tiny segments (sometimes just one byte) are transmitted repeatedly, causing significant overhead since the TCP header is typically 20 bytes or more. Silly Window Syndrome Problem ...
Read MoreWhat are issues and solutions related to TCP in networks?
The Transmission Control Protocol (TCP) faces several challenges in network environments that can significantly impact performance and efficiency. Understanding these issues and their solutions is crucial for maintaining optimal network communication. The main TCP issues include Silly Window Syndrome and Congestion Window Management problems, each requiring specific algorithmic solutions to ensure reliable and efficient data transmission. Silly Window Syndrome Silly Window Syndrome is a TCP flow control problem where the sender's window size shrinks to extremely small values, causing data packets to be smaller than the TCP header itself. This makes the TCP protocol highly inefficient as ...
Read MoreWhat are the ways of security implementation in storage networks?
Storage network security implementation involves multiple strategies to protect data in transit and at rest across network-attached storage systems. A comprehensive approach requires careful assessment, planning, and deployment of various security measures. Prerequisites for Storage Network Security Before implementing storage network security, organizations must establish several foundational elements: Risk Assessment − Complete an overall IT and security risk assessment study including threat probabilities and business impact analysis. Security Context − Establish a foundation to develop a credible storage network security plan based on assessment results. Budget Planning − Define overall IT ...
Read MoreWhat are risks in implementing the RSA algorithm without padding?
The RSA algorithm stands for Rivest-Shamir-Adleman algorithm. RSA is the most commonly used public key cryptographic algorithm and can be used for both encryption and digital signing. RSA uses variable-size encryption blocks and keys. The key pair derives from a very large number n that is the product of two large prime numbers selected through special mathematical rules. The public key includes n, and since deriving one of the prime factors from n alone is computationally infeasible for an adversary, this mathematical difficulty makes RSA secure when sufficiently long keys are used. Padding is additional data added to ...
Read More