【单选题】When using RADIUS as an external authentication method for 802.1X authentication for the Junos Pulse Access Control Service, what must you do to ensure that the RADIUS authentication works properly?()
A.
Configure IP helper to forward the authentication requests from the clients to the external RADIUS server
B.
Configure the supplicant as anexternal authentication server
C.
Configure RADIUS proxy on the realm
D.
Specify the correct RADIUS port 389 on the Junos Pulse Access Control Service
【简答题】试分析三极管工作在放大区转移特性i C = 的变化规律。 工作在放大区时,三极管的集电极电流i C =βi B ,由于β基本上为一常数,所以i C 与i B 成线性关系。根据三极管的输入特性曲线的分析已知,i B 与u BE 的关系曲线如下图(a)所示,显然,i C =f(u BE )曲线与图(a)所示三极管输入特性曲线相似,如图(b)所示。 [2.]试根据下图(a)所示电路参数,用工程近似法分别...