单项选择题

What is a static packet-filtering firewall used for ？（）

A.It validates the fact that a packet is either a connection request or a data packet belonging to a connection
B.It evaluates network packets for valid data at the application layer before allowing connections
C.It analyzes network traffic at the network and transport protocol layers
D.It keeps track of the actual communication process through the use of a state table

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热门试题

多项选择题WhataretwocharacteristicsoftheSDMSecurityAuditwizard？（）

A.displays a screen with Fix-it check boxes to let you choose which potential security-related configuration changes to implement
B.has two modes of operationinteractive and non-interactive
C.automatically enables Cisco IOS firewall and Cisco IOS IPS to secure the router
D.uses interactive dialogs and prompts to implement role-based CLI
E.requires users to first identify which router interfaces connect to the inside network and which connectto the outside network

单项选择题Refertotheexhibit.Whichstatementiscorrectbasedontheshowlogincommandoutputshown？（）

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

单项选择题Duringrole-basedCLIconfiguration，whatmustbeenabledbeforeanyuserviewscanbecreated？（）

A.multiple privilege levels
B.usernames and passwords
C.aaa new-model command
D.secret password for the root user
E.HTTP and/or HTTPS server

单项选择题Please choose the correct description about Cisco Self-Defending Network characteristics.（）

A.INTEGRATED - P4S2，COLLABORATIVE - P4S1ADAPTIVE - P4S3
B.INTEGRATED - P4S1，COLLABORATIVE - P4S2ADAPTIVE - P4S3
C.INTEGRATED - P4S3，COLLABORATIVE - P4S2ADAPTIVE - P4S1
D.INTEGRATED - P4S2，COLLABORATIVE - P4S3ADAPTIVE - P4S1

单项选择题WhichkeymethodisusedtodetectandpreventattacksbyuseofIDSand orIPStechnologies？（）

A.Signature-based detection
B.Anomaly-based detection
C.Honey pot detection
D.Policy-based detection