TCP / IP V4 version, there are security risks there? (Choose three)
A. Lack of data origin authentication mechanism
B. Lack of data packet acknowledgment mechanism
C. Lack of data integrity verification mechanism
D. Lack of confidentiality safeguards
ARP-REPLY packet sent using the broadcast, the host can receive on the same Layer 2 network, and accordingly to the IP and MAC address learning correspondence.
A. True
B. False
The following types of firewall packet processing speed is the fastest non-first?
A. Packet filtering firewall
B. Proxy Firewall
C. Stateful inspection firewall
D. Software firewalls
Extended access control lists can be used to carry traffic which of the following Latitude match? (Choose two)
A. Source MAC
B. Destination MAC
C. Source IP
D. The purpose of IP
Address conversion technology advantages include: (Choose three)
A. NAT allows the internal network users(private IP address)to easily access the Internet.
B. NAT allows many hosts to share a single internal LAN IP address of the Internet.
C. Address conversions can handle IP header encryption.
D. NAT can shield the user's internal network,improve the security of the internal network.
Multiple interfaces of the firewall can belong to the same security zone?
A. True
B. False
Transparent firewall mode works like a switch, according to MAC address forwarding for packets matching ACL check is not performed, nor generate the session table
A. True
B. False
Which of the following applications are dynamic port TCP applications?
A. SSH
B. FTP
C. Http
D. Telnet
L2TP default group primarily to scenes acceptable any client calls.
A. True
B. False
USG (Eudemon) Series firewalls from priority (priority) to define security zones can be set which of the following values ? (Choose two)
A. 150
B. 100
C. 80
D. 40
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