JNCIA Junos Firewall Filters Quiz

1. A Junos firewall filter can be applied to both ingress and egress traffic on an interface. True or False?

True

False

2. In a Junos firewall filter, which of the following is NOT a valid match condition?

Source-address

Protocol

Packet-color

Destination-port

3. A Junos firewall filter with no explicit 'then' clause at the end will default to accepting all remaining traffic. True or False?

True

False

Submit

5. Which match condition allows you to filter traffic based on TCP or UDP port numbers in a Junos firewall filter?

Destination-port

Source-port

Port

Both a and b

6. In Junos, what is the purpose of the 'logging' action in a firewall filter term?

To accept packets and log them

To reject packets without logging

To generate a syslog message for matched packets

To store packets in a buffer

7. A Junos firewall filter named 'test-filter' is applied to both input and output on the same interface. How many times will a packet be evaluated?

Once

Twice

Three times

Four times

Submit

9. Which Junos command displays statistics for a specific firewall filter?

Show firewall filter [name]

Show firewall filter statistics

Display firewall [name] counters

Show firewall filter [name] statistics

10. In Junos, what does the 'count' action in a firewall filter term do?

Limits the number of packets processed

Increments a counter and continues processing

Counts active connections only

Displays packet count on the console

11. In Junos, what is the primary purpose of a firewall filter?

To route traffic between subnets

To permit or deny traffic based on defined criteria

To compress network data

To encrypt all outgoing packets

12. In Junos, which command applies a firewall filter to an interface?

Set firewall filter apply

Set interfaces [interface] filter input/output

Apply firewall filter [name]

Set filter [name] on interface

13. What is the correct order of evaluation for terms within a Junos firewall filter?

Random order

From top to bottom as written

From bottom to top as written

Based on action priority

Submit

15. Which match condition in a Junos firewall filter term is used to specify source or destination IP addresses?

Protocol

Address

Port

Interface

16. In Junos, what does the 'reject' action do when applied to a firewall filter term?

Silently drops the packet without notification

Drops the packet and sends an ICMP error message

Forwards the packet to a logging server

Routes the packet to an alternate interface

17. Which Junos firewall filter action terminates packet processing and sends the packet to the next filter or interface?

Reject

Discard

Accept

Forward

18. What is the default action if no term in a firewall filter matches incoming traffic?

Accept the packet

Drop the packet

Log the packet

Forward to a syslog server

19. In a Junos firewall filter term, what does the 'from' clause specify?

The action to take if conditions match

The source address of the filter

The match conditions for the term

The interface where the filter applies

20. Which statement correctly describes the structure of a Junos firewall filter?

Filters contain rules; rules contain terms

Filters contain terms; terms contain rules

Filters contain policies; policies contain filters

Filters contain actions only

JNCIA Junos Firewall Filters Quiz

1. A Junos firewall filter can be applied to both ingress and egress traffic on an interface. True or False?

2.

What first name or nickname would you like us to use?

2. In a Junos firewall filter, which of the following is NOT a valid match condition?

3. A Junos firewall filter with no explicit 'then' clause at the end will default to accepting all remaining traffic. True or False?

4. In Junos, firewall filters use ____ logic to evaluate multiple match conditions within a single term.

5. Which match condition allows you to filter traffic based on TCP or UDP port numbers in a Junos firewall filter?

6. In Junos, what is the purpose of the 'logging' action in a firewall filter term?

7. A Junos firewall filter named 'test-filter' is applied to both input and output on the same interface. How many times will a packet be evaluated?

8. In a Junos firewall filter term, the 'then' clause specifies the ____ to be taken if all match conditions are satisfied.

9. Which Junos command displays statistics for a specific firewall filter?

10. In Junos, what does the 'count' action in a firewall filter term do?

11. In Junos, what is the primary purpose of a firewall filter?

12. In Junos, which command applies a firewall filter to an interface?

13. What is the correct order of evaluation for terms within a Junos firewall filter?

14. In a Junos firewall filter, the 'protocol' match condition can match TCP, UDP, and ____.

15. Which match condition in a Junos firewall filter term is used to specify source or destination IP addresses?

16. In Junos, what does the 'reject' action do when applied to a firewall filter term?

17. Which Junos firewall filter action terminates packet processing and sends the packet to the next filter or interface?

18. What is the default action if no term in a firewall filter matches incoming traffic?

19. In a Junos firewall filter term, what does the 'from' clause specify?

20. Which statement correctly describes the structure of a Junos firewall filter?