WhichattributeisusedtopasstheuserrolebacktotheNexuswhenremoteAAAisenabled?()
A. CiscoAV-pair
B. TACACS+orRADIUSackframeroleattribute
C. DH-CHAPchallengeattribute
D. privilegelevelattribute
Whichoftheseisthebestwaytoprovidesendernon-repudiation?()
A. pre-sharedkey
B. securehash
C. SSL
D. RSAsignature
《地下水质量标准》(GB/T14848-1993)中铁的三级标准为()mg/l.
A. ≤0.1
B. ≤0.2
C. ≤0.3
D. ≤1.0
高碘酸钾分光光度法测定水中锰时,50ml水样中锰含量低于()ug时,符合比尔定律。
A. 50
B. 75
C. 125
D. 150