Week5-Technology: Internets and Packets
- Common Link Layer technologies are…
- WiFi
- Optical
- Satellite
- Ethernet
- Cable Modem
- DSL
- **When looking at addresses form most general to most specific, we read IP addresses ________ and we read domain addresses _________. **
- left to right, right to left
- When do wireless devices receive their serial numbers (i.e. MAC or Ethernet addresses)?
- When they are manufactured
- What does the time taken for a packet to reach a destination usually reflect?
- The speed of light and the distance the packet has to travel
- How do wireless devices operating on a shared network determine when to send information so as not to incur chaos?
- They listen to the sound on the current network, and send information when it is quiet.
- What is the concern when deciding which device sends information next on Ethernet?
- Ensuring fairness – that one type of device, data, or user is not preferred over others.
- What is the maximum possible number of hops a packet can take to try to reach their destination (the so-called “Time To Live” functionality of packets)?
- 255
- What are Router Tables?
- Dynamic lists of directions for where and how to direct packets
- What are the layers, and in what order do we structure them?
- Application Layer
Transport Layer
Internetwork Layer
Link Layer
- What is the Internet Protocol Layer responsible for?
- Getting a packet to a specific network address
- How is an IP address determined?
- Geographically
- The prefix of an IP address determines what?
- The network that it belongs to
- What is the Link Layer responsible for?
- Deciding on the next link that a packet should be sent on once it is inside of a router
- Is it possible to track a packet’s journey across the network?
- Yes, using a technique called ‘traceroute’ which tracks the packets that are returned due to transmission failure.
原文地址:http://www.cnblogs.com/jqhuang2021/p/16852712.html
1. 本站所有资源来源于用户上传和网络,如有侵权请邮件联系站长!
2. 分享目的仅供大家学习和交流,请务用于商业用途!
3. 如果你也有好源码或者教程,可以到用户中心发布,分享有积分奖励和额外收入!
4. 本站提供的源码、模板、插件等等其他资源,都不包含技术服务请大家谅解!
5. 如有链接无法下载、失效或广告,请联系管理员处理!
6. 本站资源售价只是赞助,收取费用仅维持本站的日常运营所需!
7. 如遇到加密压缩包,默认解压密码为"gltf",如遇到无法解压的请联系管理员!
8. 因为资源和程序源码均为可复制品,所以不支持任何理由的退款兑现,请斟酌后支付下载
声明:如果标题没有注明"已测试"或者"测试可用"等字样的资源源码均未经过站长测试.特别注意没有标注的源码不保证任何可用性