What is valid reason for a switch to deny port access to new devices when port security is enabled?()
A. The denied MAC addresses have already been learned or confgured on another secure interface in the same VLA
B. The denied MAC address are statically configured on the port.
C. The minimum MAC threshold has been reached.
D. The absolute aging times for the denied MAC addresses have expired.
查看答案
气动执行机构薄膜的有效面积越大,执行机构的位移和推力也越大。
A. 正确
B. 错误
在大量易燃易爆气体泄漏的场所,一般情况下,下面()种动作容易引起静电。
A. 快速奔跑
B. 大声呼救
C. 俯身慢走
D. 静止不动
在硅谷发展中,斯坦福大学居功至伟!人们说:“没有斯坦福,就没有硅谷”。
A. 正确
B. 错误
小学生王东被校外人员威胁,要他从家里拿钱,并扬言若不照办就会有生命危险,该校外人员涉嫌()。
A. 盗窃罪
B. 恐吓罪
C. 故意杀人罪未遂
D. 敲诈勒索罪