Which option ensures that data is not modified in transit？（）

单项选择题WhichtypeofintrusionpreventiontechnologywillbeprimarilyusedbytheCiscoIPSsecurityappliances？（）

A.signature-based
B.profile-based
C.rule-based
D.protocol analysis-based

单项选择题WhenconfiguringSSH，whichistheCiscominimumrecommendedmodulusvalue？（）

A.2048 bits
B.1024 bits
C.256 bits
D.512 bits

单项选择题Whichinformationisstoredinthestatefulsessionflowtablewhileusingastatefulfirewall？（）

A.the inside private IP address and the translated inside global IP address
B.the source and destination IP addresses， port numbers，TCP sequencing information， and additional flags for each TCP or UDP connection associated with a particular session
C.the outbound and inbound access rules （ACL entries）
D.all TCP and UDP header information only

单项选择题WhichVoIPcomponentscanpermitordenyacallattemptonthebasisofanetwork’savailablebandwidth？（）

A.MCU
B.Application server
C.Gateway
D.Gatekeeper

单项选择题WhatistheobjectiveofDiffie-Hellman？（）

A.used to verify the identity of the peer
B.used between the initiator and the responder to establish a basic security policy
C.used to establish a symmetric shared key via a public key exchange process
D.used for asymmetric public key encryption