TMP Network Design & Optimization — Questions and Answers
Question 1: What does network topology refer to?
- Signal strength
- Encryption type
- Network layout (Correct answer)
- Frequency band
Correct answer: Network layout
Network topology refers to the physical or logical arrangement of elements (nodes, links, etc.) of a communication network. It describes how devices are interconnected and how data flows between them. The chosen topology significantly influences network performance, reliability, and cost, making it a fundamental design consideration.
Question 2: Which topology offers redundancy but higher cost?
- Bus
- Ring
- Star
- Mesh (Correct answer)
Correct answer: Mesh
A mesh topology offers the highest level of redundancy because every device is connected to every other device, creating multiple pathways for data transmission. While this provides excellent fault tolerance and reliability, ensuring continuous operation even if a link fails, it also incurs the highest cost due to the extensive cabling and numerous connections required.
Question 3: What tool is used to analyze network traffic?
- Firewall
- Switch
- Packet sniffer (Correct answer)
- Load balancer
Correct answer: Packet sniffer
A packet sniffer, also known as a network analyzer or protocol analyzer, is a tool used to capture and analyze data packets traveling across a computer network. It allows administrators to monitor network traffic, diagnose issues, and identify potential security threats by examining the content of these packets. This is crucial for network management and cybersecurity.
Question 4: What does QoS stand for?
- Queue of Service
- Quota of Storage
- Quick online Service
- Quality of Service (Correct answer)
Correct answer: Quality of Service
QoS stands for Quality of Service, which refers to technologies that manage network traffic to ensure certain applications or data streams receive prioritized bandwidth and performance. This is crucial in telecommunications for services like VoIP and video conferencing, where consistent performance is vital for user experience.
Question 5: Which metric indicates network speed?
- Latency
- Bandwidth (Correct answer)
- Jitter
- Hop count
Correct answer: Bandwidth
Bandwidth measures the maximum rate at which data can be transferred over a network connection, typically expressed in bits per second (bps). It directly indicates the capacity or 'speed' of a network link, determining how much data can flow through it within a given time. Higher bandwidth generally means faster data transfer.
Question 6: Why are VLANs used?
- Boost Wi-Fi
- Encrypt files
- Segment traffic logically (Correct answer)
- Compress data
Correct answer: Segment traffic logically
VLANs (Virtual Local Area Networks) are used to logically segment a single physical network into multiple broadcast domains. This allows network administrators to isolate traffic, improve security, and enhance network performance by reducing broadcast traffic, all without needing separate physical hardware for each segment.
Question 7: What is the role of load balancing?
- Block threats
- Distribute network traffic (Correct answer)
- Cache content
- Change IPs
Correct answer: Distribute network traffic
Load balancing's primary role is to efficiently distribute incoming network traffic across multiple servers or resources. This prevents any single server from becoming a bottleneck, thereby improving application availability, responsiveness, and overall system performance and reliability by spreading the workload.
Question 8: How is network latency measured?
- Signal drop
- Bandwidth
- Round-trip time (Correct answer)
- CPU usage
Correct answer: Round-trip time
Network latency is the delay before a transfer of data begins following an instruction for its transfer. It is commonly measured as the Round-Trip Time (RTT), which is the duration from when a signal is sent until an acknowledgment of that signal is received, indicating the total time for a data packet to travel to a destination and back.
Question 9: Which factor affects wireless network design?
- Cable type
- IP version
- Signal interference (Correct answer)
- Switch type
Correct answer: Signal interference
Signal interference is a critical factor in wireless network design because it can significantly degrade signal quality, reduce range, and impact network performance. Sources like other wireless devices, microwaves, and physical obstructions can cause interference, necessitating careful placement and channel planning for access points to minimize its effects.
TMP Network Design & Optimization
What does network topology refer to?