【多选题】关于802.1Q,下面的说法哪些是正确的?
B.
802.1Q使以太网帧的长度增加,所以FCS(帧校验)值需要重新计算
C.
802.1Q标签的内容包含了2字节的VLAN ID字段
D.
对于不支持802.1Q的设备,可以忽略这4个字节
【判断题】家访既费时耗力,又无法收费,所以,一般应避免进行家访。( )
【简答题】阅读文章,判断正误(T or F) Save money while you shop! “You deserve the very best!” “You’ll look good in this dress!” “Buy now and save 30%!” Do these tips sound familiar? Of course they do. Advertisers and sho...
【单选题】使用逻辑非“not”运算符,对于检索结果的作用是( )。
【单选题】The title The Professor and the Yo-yo suggests that
A.
Einstein was a childlike old man
B.
Einstein's pastimes were few and uncomplicated
C.
of all toys, Einstien liked the yo-yo best
D.
Einstein was great yet ordinary