單項(xiàng)選擇題In a brute-force attack, what percentage of the keyspace must an attacker generally search through until heor she finds the key that decrypts the data?()

A.Roughly 50 percent
B.Roughly 66 percent  ActualTests.com
C.Roughly 75 percent
D.Roughly 10 percent


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1.單項(xiàng)選擇題Which statement is true about a Smurf attack?()

A.It sends ping requests in segments of an invalid size
B.It intercepts the third step in a TCP three-way handshake to hijack a session
C.It sends ping requests to a subnet, requesting that devices on that subnet send ping replies to a targetsystem
D.It uses Trojan horse applications to create a distributed collection of "zombie" computers, which can beused to launch a coordinated DDoS attack

3.多項(xiàng)選擇題When using the Cisco SDM Quick Setup Siteto-Site VPN wizard, which three parameters do you configure?()

A.Source interface where encrypted traffic originates
B.IP address for the remote peer
C.Transform set for the IPsec tunnel
D.Interface for the VPN connection

4.單項(xiàng)選擇題How do you define the authentication method that will be used with AAA?()

A.With the method aaa command
B.With the method command
C.With a method list
D.With a method statement

5.單項(xiàng)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

6.單項(xiàng)選擇題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

7.單項(xiàng)選擇題

Which statement is correct regarding the aaa configurations based on the exhibit provided?()

A.The authentication method list used by the vty port is named test.
B.If the TACACS+ AAA server is not available, no users will be able to establish a Telnet session with the router.
C.If the TACACS+ AAA server is not available, console access to the router can be authenticated using the local database.
D.The authentication method list used by the console port is named test.

8.單項(xiàng)選擇題

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

9.單項(xiàng)選擇題When configuring role-based CLI on a Cisco router,which action will be taken first ?()

A.Create a parser view called "root view."
B.Log in to the router as the root user.
C.Enable the root view on the router.
D.Enable role-based CLI globally on the router using the privileged EXEC mode Cisco IOS command.

10.單項(xiàng)選擇題What will be disabled as a result of the no service password-recovery command?()

A.password encryption service
B.changes to the config-register setting
C.the xmodem privilege EXEC mode command to recover the Cisco IOS image
D.ROMMON

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