CCNA系列認證CCNA(640-553)單項選擇題每日一練(2019.01.15)

單項選擇題
When configuring SSH， which is the Cisco minimum recommended modulus value？（）
A.2048 bits
B.1024 bits
C.256 bits
D.512 bits
單項選擇題
Which type of intrusion prevention technology will be primarily used by the Cisco IPS security appliances？（）
A.signature-based
B.profile-based
C.rule-based
D.protocol analysis-based
單項選擇題
If you click the Configure button along the top of Cisco SDM is graphical interface，which Tasks buttonpermits you to configure such features as SSH， NTP， SNMP， and syslog？（）
A.Interfaces and Connections
B.Intrusion Prevention
C.Security Audit
D.Additional Tasks
單項選擇題
Which statement is true about a certificate authority？（）
A.An entity responsible for registering the private key encryption used in a PKI
B.An agency responsible for granting and revoking public-private key pairs
C.A trusted third party responsible for signing the public keys of entities in a PKIbased system
D.A trusted third party responsible for signing the private keys of entities in a PKIbased system
單項選擇題
Which key method is used to detect and prevent attacks by use of IDS and/or IPS technologies？（）
A.Signature-based detection
B.Anomaly-based detection
C.Honey pot detection
D.Policy-based detection