Software Development Life Cycle (SDLC) and UML Diagrams
Explain the Principles of Testing
Testing plays a crucial role in software development by revealing defects and ensuring quality. Here are some key principles of testing:
1. Testing Shows the Presence of Defects
The primary goal of software testing is to identify defects. While it reduces the likelihood of defects, testing cannot guarantee their complete absence. It primarily focuses on revealing their presence, not proving their absence.
2. Exhaustive Testing Is Not Possible
Exhaustive testing, which
Read MoreTroubleshooting Network Issues: A Comprehensive Guide
It will reject RADIUS server change of authorization (CoA) messages with timestamps that are more than one minute old|monitor thresholds to generate alerts
RMON alarm|A Type 2 metric stays the same as the external route is advertised, while a Type 1 metric increments with internal OSPF link costs|Set command authorization to RADIUS, also set RADIUS for aaa authentication ssh login and aaa authentication ssh enable|Divide the AS into different areas, and aggregate routes between them|RADIUS MAC-Auth
FDDI & HDLC: Legacy Network Protocols
Fiber Distributed Data Interface (FDDI)
Overview
FDDI is a high-speed networking standard primarily used for creating LANs. Developed in the 1980s by ANSI, it offered improvements over existing LAN technologies like Ethernet, especially in speed, reliability, and distance capabilities.
Key Aspects of FDDI
- Topology: FDDI networks typically use a dual-ring topology for redundancy. One ring is primary; the other is a backup.
- Media: FDDI operates over optical fiber, providing high bandwidth and resistance
Software Metrics and Requirements Specifications
Software Metrics
Process Metrics
Quality-Related Metrics: Focus on the quality of work products and deliverables. To improve service quality, stakeholder needs and expectations should be monitored and measured. Shortfalls should be identified and addressed.
Productivity-Related Metrics: Production of work products related to effort expended. Examples include user satisfaction, average calls per hour, staff effectiveness, fine collection rate, and turnover.
- Statistical SQA data: Error categorization
Networking Concepts: A Comprehensive Guide
Certainly! Below is a comprehensive overview of the networking concepts listed. This guide is structured into sections for clarity and ease of understanding.
1. Internetworking
Definition: Internetworking refers to the practice of connecting multiple computer networks together to form a larger network, such as the Internet.
Key Components:
- Routers: Direct data packets between different networks.
- Gateways: Act as entry points to another network, often handling protocol conversions.
- Protocols: Standard
Stack and Queue Implementation in C
Stack Implementation in C
Introduction
This code implements a stack data structure using a linked list in C. A stack follows the Last-In, First-Out (LIFO) principle. The program provides options to push (insert), pop (remove), display, and free the stack.
Code Explanation
The code defines a structure NODE with an integer element ele and a pointer hur to the next node. The main function presents a menu with options to perform stack operations. The sartu function pushes an element onto the stack.