A.It is hashed using MD5
B.It is encrypted using a proprietary Cisco encryption algorithm
C.It is hashed using SHA
D.It is encrypted using DH group 5

A.reflexive ACL
B.dynamic ACL
C.queuing
D.netflow
E.state

A.The enable password is present for backward compatibility.
B.Because the enable secret password is a hash， it cannot be decrypted. Therefore， the enable password is used to match the password that was entered， and the enable secret is used to verify that the enablepassword has not been modified since the hash was generated.
C.The enable password is considered to be a router’s public key， whereas the enable secret password is considered to be a router’s private key.
D.The enable password is used for IKE Phase I， whereas the enable secret password is used for IKE Phase II.

A.TACACS+ - P4S1 and P4S4RADIUS - P4S2 and P4S3
B.TACACS+ - P4S2 and P4S4RADIUS - P4S1 and P4S3
C.TACACS+ - P4S1 and P4S3Actual RADIUS - P4S2 and P4S4
D.TACACS+ - P4S2 and P4S3RADIUS - P4S1 and P4S4

A.Firmware-level virus detection
B.Signature-based virus filtering
C.Layer 4 virus detection
D.Signature-based spyware filtering

A.This is a normal system-generated information message and does not require further investigation.
B.Service timestamps have been globally enabled.
C.This message is unimportant and can be ignored.
D.This message is a level 5 notification message.

A.A copy of the frame is forwarded out all switch ports other than the port the frame was received on.
B.The frame is transmitted on the native VLAN.
C.The switch sends a NACK segment to the frame’s source MAC address.
D.The frame is dropped.

A.Three or more login requests have failed within the last 100 seconds.
B.When the router goes into quiet mode， any host is permitted to access the router via Telnet，actual   SSH， and HTTP， since the quiet-mode access list has not been configured.
C.The login block-for command is configured to block login hosts for 93 seconds.
D.All logins from any sources are blocked for another 193 seconds.

A.Loopback interface
B.Command and control interface
C.Monitoring interface
D.Management interface

A.The period of time in which virtual login attempts are blocked， following repeated failed login attempts
B.The period of time in which virtual logins are blocked as security services fully initialize
C.A period of time when no one is attempting tolog in
D.The period of time between successive login attempts

A.aaa configuration commands and the SDM Basic Firewall wizard
B.setup exec command and the SDM Security Audit wizard
C.auto secure exec command and the SDM One-Step Lockdown wizard
D.Cisco Common Classification Policy Language configuration commands and the SDM Site-to- Site VPN