Users log in via TELNET device, because many times forgotten password login authentication fails, resulting in the account is frozen for several minutes, what is the role of technology?
A. ACL
B. Attack prevention
C. Blacklist
D. Account frozen
About L2TP VPN configuration statement is correct: (Choose three)
A. The LNS L2TP client must configure the IP address of the virtual interface template,and the virtual interface template need to join the security domain
B. Firewall policies in order to ensure the normal dial-up users log on,you must configure the firewall to receive L2TP tunnel packets security zone where the physical interface between the regions and the Local
C. Dial-up users need access to internal network resources, you must configure the firewall policy template region corresponding virtual interface and internal security network located between areas where security
D. If a virtual template interface is added to a safe area,you can directly delete the security zone.
Which of the following statements is correct?
A. Ability to International Organization for Standardization definition of " security" is a way to identify and mitigate insecurity
B. Security is to find a balance between confidentiality and integrity
C. A high level of security technologies and policies can make the device or network without any risk
D. Information security is a subset of network security is a comprehensive and continuous technology
Following the agreement, the work at the network layer have? (Choose two)
A. ICMP
B. IGMP
C. FTP
D. TELNET
Packet forwarding based routing table information, which of the following information will then be routed to match forwards?
A. Mask length of the longest route entry
B. Cost routing
C. Route priority
D. Routing Protocol
After a successful L2TP user authentication, IP address obtained is wrong to say :
A. User address allocation has been assigned an IP address bound and dynamically assigned IP addresses from the address pool in two ways
B. L2TP user-assigned IP address can be any address
C. L2TP user-assigned IP address and the address of the network to be accessed in the same network segment
D. Address assignment plan well in advance to avoid address conflicts exist
Which of the following IKE exchange mode can only use IP addresses to identify peer manner?
A. Master Mode
B. Aggressive Mode
C. Fast mode
D. Passive mode
The following agreements, in the application layer have? (Choose two)
A. ARP
B. IGMP
C. TELNET
D. TFTP
After the LAC configure the Ethernet interface to bind the virtual template interface, Ethernet interface may configure the IP address.
A. True
B. False
For the firewall that comes trust and untrust security zone statement right there? (Choose two)
A. Untrust zone access area from the trust direction outboud direction
B. Untrust zone access area from the trust direction inboud direction
C. Follow the direction of inter-domain access does not matter which area initiated only associated with priority
D. When entering the inter-domain view,the trust must be placed in front of the area
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