通常項目較少會係row?
鳩up
我估係因為bmp系uncompressed所以佔多啲位,所以係less preferable. jpg就經過compress所以佔小啲位。第3題唔係多數browser唔support bmp咩?等我都拋啲題目出來先1.um 有冇中文
1. Advantages and disadvantages of database indexing. Why denormalization is needed in DB sometimes?
2. What is bcc when you send an email?
3. Why jpeg is preferred but not bmp on webpage?
4. Why HTML5 is going to replace flash?
5. Advantages of using fingerprint detection than password in smartphone
6. Pros and cons of facial recognition in smartphone to unlock the phone and online shopping
7. Why people use cloud computing instead of owning a physical server?
8. How do you prevent a bot flooding a ticket ordering website?
2.BCC即係收件人係唔會知道其他喺BCC入面嘅收件人嘅email
3.因為jpg經過壓縮,佢嘅檔案大小比bmp細,瀏覽網頁可以減少載入時間
4.因為HTML5功能比FLASH好且HTML唔洗PLUGIN
5.指紋係獨一無二嘅,可以確保只有擁有人能unlock
6.好處:面貌識別可以確認使用者嘅身份,比起有機會撞中嘅pw安全性要高
壞處:外表會因整容、毀容等事件而改變,屆時將無法使用
7.
8.加入recaptcha
如果有錯請指出