NETWORK SECURITY
FIREWALLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sequence number
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Destination address of a packet
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Port number
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Acknowledgement number
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Source address of a packet
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Detailed explanation-1: -Static Packet Filter This type of firewall decides whether to accept or deny individual packets, based on examining fields in the packet’s IP and protocol headers.
Detailed explanation-2: -The stateful packet inspection feature of the firewall checks the legitimacy of the response generated from the server and whether they are the correct response initiated to fulfill the request of a correct client. Therefore, this is the correct answer.
Detailed explanation-3: -Dynamic packet filtering. Static packet filtering. Stateless packet filtering. Stateful packet filtering.
Detailed explanation-4: -Enter system view. system-view. Configure the outbound packet filters on the VLAN interfaces of an SPC card to filter only Layer 3 unicast packets. packet-filter forwarding-layer route outbound. Enter interface view. Apply an IPv4 ACL to the interface to filter IPv4 packets.