400-251 上海 pass 题库稳定

wunderup

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) G- z7 [9 p" A; m9 L251Q版本，不能看pdf，一定要看vce，题库全覆盖，要考试的赶紧。

4 y) \( }. N: _8 C- T! ]( J题库中有错误，只有925分（845过），不过足够了。

感谢提供题库的战友，感谢鸿鹄平台。

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chaukwan95

congratulations

chaukwan95

congratulations

沙漠甘甜

congratulations

shyshysh448

lvjun

thankyou for sharing.   

lvjun

楼主。VCE你用的那个版本的，拓图题能做吗？

xiaojf0115

十点半的精灵1

VCE 题库里有个问题，请教一下
% U4 n: W' H* j2 M0 ?4 }QUESTION 79
+ ^4 H5 y) A# a; i( `) Q3 eWhich two characteristics of DTLS are true? (Choose two)
A. It supports long data transfers and connectionless data transfers.
B. It includes a retransmission method because it uses an unreliable datagram transport.
C. It includes a congestion control mechanism.
5 Y  \. I' S3 Y5 f! ED. It is used mostly by applications that use application layer object-security protocols.
( b/ i% Z: e$ M  Z+ V% ?" C! NE. It completes key negotiation and bulk data transfer over a single channel.
F. It cannot be used if NAT exists along the path.
& D- G% ~, j  X! r# |0 r$ L9 c答案B E


4 A+ k9 A: \6 E  J9 PQUESTION 143
Which two characteristics of DTLS are true?(Choose two)
) |% k7 C9 `, z# s& ]A. It is used mostly by applications that use application layer object-protocols
B. It includes a congestion control mechanism
C. It completes key negotiation and bulk data transfer over a single channel.
  e+ ]6 m" z% Z1 `D. It supports long data transfers and connectionless data transfers.
E. It cannot be used if NAT exists along the path.
% N# w5 N+ s/ cF. It concludes a retransmission method because it uses an unreliable datagram transport.
( l( z/ n- V4 b' J答案：BF


4 D0 n2 f0 u1 L; i9 Z所以应该哪个是对的啊
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ahmadomari

thanks

zack678777

thanks for sharing

maccatwk

congrat!

maccatwk

congrat!

maccatwk

thanks for sharing

maccatwk

十点半的精灵1 发表于 2018-1-24 10:59
VCE 题库里有个问题，请教一下
QUESTION 79
Which two characteristics of DTLS are true? (Choose two)
...

你已應考了嗎? 題目穩定?