Which of the following is true about RADIUSV end or Specific Attribute？ （）

A.The RADIUSVendor Specific Attribute type is decimal 26.

B.A radius server that does not understandthevendor-specific information sent by a clientmust reject the authentication request.

C.A vendor can freely choose theVendor-ID it wants to use when implementing Vendor Specific Attributes as long as the same Vendor-ID is used on all of its products.

D.Vendor Specific AttributeMUST include the Length field.

E.In Cisco’s Vendor Specific Attribute implementation， vendor-ID of 1 is commonly referred to as Cisco AV（Attribute Value） pairs.

F.Vendor Specific Attributes use a RADIUS attribute type between 127 and 255.