什么是cex.io?

Cex.io,是一家知名的国外比特币交易所(bitcoin exchange),该交易所可提供用USD(美元),EUR(欧元),GBP(英镑)、RUB(卢布)买卖比特币的服务,其总部位于英国。除了比特币(Bitcoin)外,cex.io还提供以太币(Ethereum)的交易服务。Cex.io可支持杠杆/保证金(margin trading)交易,当前的杠杆比例是1:2(2倍),1:3(3倍)两种。目前,Cex.io支持用信用卡、银行转账(bank transfer)两种主要方式进行账户的充值(入金)。需要注意的是,cex.io对于比特币、以太币的交易有最低数量限制。对于比特币,最低的交易数量(minimum amount)是0.01个比特币,而以太币的最低交易量则是0.1个。此外,对于中国境内的用户,使用国内信用卡或许会遇到无法通过卡片验证的问题,原因可能是受到外汇局管制,具体可以致电信用卡发卡行的客服咨询。

参考链接:

https://cex.io

“变现”的英文是什么?

“变现”,指将一项资产转化为现金,或通过某种方式将某个有价值的业务变成利润(实现盈利),比如:实时收费政策等。变现,也是当今很多互联网内容创业者最为关心的问题。在英文里,”变现”有一个对应的说法是:(to) monetize,其名词为:monetization。知名财经知识网站Investorwords对monetize的解释为:Converting something into money. It can apply to selling securities in exchange for money, such as when a company sells a bond, and can also apply to charging money for something that was previously free or unprofitable, such as a local business charging customers to park in its parking garage. 参考一个使用monetize的英文例句:I wanted to monetize my blog because I had a lot of visitors and they all wanted more articles from me. (我想将我的博客变现,因为我有大量的访问者,他们都希望从我的网站阅读更多的文章。)

参考链接:

http://www.investorwords.com/6583/monetize.html

查看Cisco路由器配置的2个常用命令

你可以通过以下两个命令快速查看路由器的配置(configuration),它们是:show running-config,和show startup-config。其中,show running-config,显示的是路由器当前正在使用的配置。而show startup-config,则显示的是已经保存在路由器内部存储介质(NVRAM)上的配置。

通过思科(Cisco)的CCIE认证应该阅读哪些参考书?(完整书单)

CCIE依旧是IT行业含金量最高的职业认证,要想获得这一证书,需要掌握丰富的网络知识,并了解大量的技术细节,同时还要具有相当强的问题分析与解决能力。备考CCIE是艰苦的,但回报却又相当丰厚。以下是思科(Cisco)官网推荐的通过CCIE考试(路由与交换方向,Routing & Switching)需要阅读的专业技术书籍(并非强制)。当然,即便你只是对网络技术感兴趣,系统地阅读这些经典的网络技术书籍也会大有裨益。(2016年11月更新)

CCIE Routing and Switching v5.0 Official Cert Guide, Volume 1, 5th Edition

CCIE Routing and Switching v5.0 Official Cert Guide, Volume 2, 5th Edition

Cisco CCIE Routing and Switching v5.0 Troubleshooting Practice Labs, 2nd Edition

Cisco CCIE Routing and Switching v5.0 Configuration and Troubleshooting Practice Labs Bundle

CCIE Routing and Switching v5.0 Official Cert Guide Vol 1 Premium Edition eBook/Practice Test, 5th Edition

Cisco CCIE Routing and Switching v5.0 Configuration Practice Labs, 3rd Edition

Routing TCP/IP, Volume 1

Routing TCP/IP, Volume II (CCIE Professional Development)

Troubleshooting IP Routing Protocols

Inside Cisco IOS Software Architecture (CCIE Professional Development Series)

Cisco OSPF Command and Configuration Handbook (paperback)

Cisco BGP-4 Command and Configuration Handbook

Cisco Field Manual: Router Configuration

Developing IP Multicast Networks, Volume I

Internet Routing Architectures

MPLS and VPN Architectures

MPLS and VPN Architectures, Volume II

End-to-End QoS Network Design: Quality of Service in LANs, WANs, and VPNs

Deploying IPv6 Networks

Network Security Technologies and Solutions (CCIE Professional Development Series)

Implementing EIGRP

IP Routing on Cisco IOS, IOS XE, and IOS XR: An Essential Guide to Understanding and Implementing IP Routing Protocols

Reference Material for Evolving Technology section

参考链接:

https://learningnetwork.cisco.com/docs/DOC-4601

敏捷项目管理中的Sprint到底是什么意思?

Sprint,是敏捷项目管理方法Scrum中的一个重要概念,也称为Scrum Sprint。Techopedia对其定义如下:”A scrum sprint is a regular, repeatable work cycle in scrum methodology during which work is completed and made ready for review.” 从本质上而言,所谓Sprint,指在Scrum项目管理方法中的一个常规、可重复的较短工作周期。在这个周期里,项目团队需快速完成预定的工作量,交付出可用的成品组件,并提交评审,之后再进入下一个Sprint。Sprint在中文里常被翻译为“迭代”、有时也被译为“冲刺”。

通常,一个Sprint的周期不应当长于30天。主要是Scrum认为,在30天的周期内,可以比较好地保证需求的稳定,同时成本等风险更加可控。睿珑认为,下面这个比喻非常形象地解释了Sprint在敏捷项目管理中的作用及功能:With “sprint”, we are running a marathon (building the product) but doing it in short bursts (iterations) with breaks in between.

参考链接:

https://www.techopedia.com/definition/13687/scrum-sprint

https://www.scrum.org/resources/what-is-a-sprint-in-scrum

https://blogs.msdn.microsoft.com/progressive_development/2008/01/22/motley-says-what-does-rugby-have-to-do-with-software-scrum-part-i/