Which two statements about firewall filters are correct? (Choose two.)

The correct answer is A. Firewall filters are stateless. D. Firewall filters can match Layer 4 parameters. Firewall filters in Junos OS are stateless, meaning they process each packet individually without regard to the state of a connection or sequence of packets. These filters can match various packet attributes, including those at Layer 4, such as TCP and UDP port numbers. This…

Routing Policy and Firewall Filters

Question

Options

AFirewall filters are stateless.
BFirewall filters can match Layer 7 parameters.
CFirewall filters are stateful.
DFirewall filters can match Layer 4 parameters.

How the community answered

(39 responses)

A
82% (32)
B
10% (4)
C
8% (3)

Explanation

Firewall filters in Junos OS are stateless, meaning they process each packet individually without regard to the state of a connection or sequence of packets. These filters can match various packet attributes, including those at Layer 4, such as TCP and UDP port numbers. This allows for granular control over traffic based on the type of service or application. Unlike stateless filters, stateful firewalls keep track of the state of active connections and make decisions based on the context of the traffic flow, which is not a capability of Junos firewall filters. Additionally, Junos firewall filters primarily operate up to Layer 4 and do not natively inspect Layer 7 parameters, which involve application-level data.

Topics

#firewall filter#stateless#Layer 4 match#match conditions

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