多项选择题Which three items are Cisco best-practice recommendations for securing a network?()

A.Routinely apply patches to operating systems and applications
B.Disable unneeded services and ports on hosts
C.Deploy HIPS software on all end-user workstations
D.Require strong passwords and enable password expiration


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1.单项选择题Examine the following items, which one offers a variety of security solutions, including firewall, IPS, VPN,antispyware, antivirus, and antiphishing features?()

A.Cisco IOS router
B.Cisco PIX 500 series security appliance
C.Cisco 4200 series IPS appliance
D.Cisco ASA 5500 series security appliance

2.单项选择题Before a Diffie-Hellman exchange may begin, the two parties involved must agree on what?()

A.Two secret keys
B.Two nonsecret keys
C.Two secret numbers
D.Two nonsecret numbers

3.单项选择题

Based on the username global configuration mode command displayed in the exhibit. What does the optionsecret 5 indicate about the enable secret password?()

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

5.单项选择题The enable secret password appears as an MD5 hash in a router’s configuration file, whereas the enablepassword is not hashed (or encrypted, if the password-encryption service is not enabled). What is thereason that Cisco still support the use of both enable secret and enable passwords in a router’sconfiguration?()

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.

6.单项选择题

Which statement best describes the relationships between AAA function and TACACS+, RADIUS based onthe exhibit shown?()

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

7.单项选择题What will be enabled by the scanning technology-The Dynamic Vector Streaming (DVS)?()

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

8.多项选择题

Given the exhibit below. You are a network manager of your company. You are reading your Syslog serverreports. On the basis of the Syslog message shown, which two descriptions are correct?()

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.

9.单项选择题If a switch is working in the fail-open mode, what will happen when the switch’s CAM table fills to capacityand a new frame arrives?()

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.

10.单项选择题

Which description is true about the show login command output displayed in the exhibit?()

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.

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