Learning Outcome 001 Flashcards
How is a site survey conducted?
A site survey involves assessing the physical environment, identifying potential obstacles, measuring signal strength, and determining optimal locations for network equipment. Tools like spectrum analyzers and heat mapping software are often used.
What environmental factors affect network design?
Factors include physical obstructions (walls, furniture), interference (from other devices or networks), building materials (metal, concrete), and environmental conditions (humidity, temperature).
What are common data-gathering methods for user requirements?
Methods include interviews, questionnaires, observation, and reviewing published documents.
What is the advantage of using questionnaires for data gathering?
Questionnaires allow for standardized data collection from a large group of users quickly and efficiently.
How does observation help in gathering user requirements?
What are common technologies used to access the Internet?
DSL, cable broadband, dial-up, PSTN, satellite, and wireless.
Name two ISPs in Zimbabwe and their services.
Example: Liquid Telecom (fiber and wireless broadband) and Econet Wireless (mobile and fixed broadband).
What is the difference between DSL and cable broadband?
DSL uses telephone lines, while cable broadband uses coaxial cables. Cable broadband typically offers higher speeds than DSL.
What types of budgets are considered in network design?
Capital expenditure (CAPEX) for hardware/software and operational expenditure (OPEX) for maintenance and services.
What is included in network device specifications?
Specifications include processing power, port density, throughput, scalability, and compatibility with existing infrastructure.
Why is network diagram interpretation important?
It helps visualize the network layout, identify potential bottlenecks, and plan for future expansion.
What is the function of a firewall?
A firewall monitors and controls incoming and outgoing network traffic based on security rules.
What is the role of a wireless access point?
It allows wireless devices to connect to a wired network using Wi-Fi.
What is the purpose of a load balancer?
A load balancer distributes network traffic across multiple servers to ensure no single server is overwhelmed.
What is DHCP, and why is it important?
DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to devices on a network, simplifying network management.
What are the advantages of a star topology?
Easy to install and manage, failure of one node doesn’t affect others, and centralized control.
What is a mesh topology?
A mesh topology connects all devices to each other, providing multiple paths for data and high redundancy.
What is a hybrid topology?
A hybrid topology combines two or more different topologies (e.g., star and bus) to leverage their advantages.
What is the format of an IPv4 address?
An IPv4 address is a 32-bit number written as four decimal numbers separated by dots (e.g., 192.168.1.1).
What is the difference between IPv4 and IPv6?
IPv4 uses 32-bit addresses, while IPv6 uses 128-bit addresses, providing a much larger address space.
What is subnetting?
Subnetting divides a network into smaller, manageable sub-networks to improve performance and security.
What is Variable Length Subnet Masking (VLSM)?
VLSM allows subnets of different sizes within the same network, optimizing IP address allocation.
