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Exam 350-701 topic 1 question 114 discussion

Actual exam question from Cisco's 350-701
Question #: 114
Topic #: 1
[All 350-701 Questions]

What is a characteristic of a bridge group in a Cisco ASA Firewall running in transparent mode?

  • A. It has an IP address on its BVI interface and is used for management traffic.
  • B. It allows ARP traffic with a single access rule.
  • C. It includes multiple interfaces and access rules between interfaces are customizable.
  • D. It is a Layer 3 segment and includes one port and customizable access rules.
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Suggested Answer: C 🗳️

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leptonius
Highly Voted 2 years, 8 months ago
It's C https://www.cisco.com/c/en/us/td/docs/security/asa/asa94/config-guides/cli/general/asa-94-general-config/intro-fw.html
upvoted 11 times
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sull3y
Highly Voted 1 year, 3 months ago
C. It includes multiple interfaces and access rules between interfaces are customizable. In transparent mode, a Cisco ASA firewall acts as a bridge instead of a router. A bridge group is a collection of interfaces that are bridged together and forward traffic between them. A bridge group in transparent mode includes multiple interfaces, and the access rules between interfaces are customizable, meaning that the administrator can configure filtering and access control policies to restrict traffic between different interfaces. This allows the firewall to forward traffic between different VLANs or segments while still applying security policies.
upvoted 6 times
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ytsionis
Most Recent 7 months, 3 weeks ago
C is the correct. ++if you configure an access control rule to block Questionable sites (level 5), it also blocks all 4,3,2, through  Untrusted (level 1) sites. (Firepower Management Center Configuration Guide, Version 6.5) https://www.cisco.com/c/en/us/td/docs/security/firepower/650/configuration/guide/fpmc-config-guide-v65/url_filtering.html#id_17110
upvoted 1 times
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Jessie45785
1 year, 1 month ago
Selected Answer: A
NOT C - access rules between interfaces are customizable - how they can be since they are bridged ?!?
upvoted 1 times
Jessie45785
1 year ago
C - IS CORRECT - I have to correct myself, indeed C is correct: https://www.cisco.com/c/en/us/td/docs/security/asa/asa97/configuration/firewall/asa-97-firewall-config/access-rules.html Extended access rules (Layer 3+ traffic) assigned to Bridge Virtual Interfaces (BVI; routed mode)—If you name a BVI, you can apply separate rule sets in the inbound and outbound direction, and you can also apply rule sets to the bridge group member interfaces. When both the BVI and member interface have access rules, the order of processing depends on direction. Inbound, the member access rules are evaluated first, then the BVI access rules. Outbound, the BVI rules are considered first, then the member interface rules.
upvoted 1 times
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kjubo
1 year, 6 months ago
Selected Answer: C
BVI interface is not used for management purpose. But we can add a separate Management slot/port interface that is not part of any bridge group, and that allows only management traffic to the ASA.
upvoted 3 times
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leowulf
1 year, 7 months ago
I believe answer is C https://integratingit.wordpress.com/2021/05/30/asa-transparent-mode/#:~:text=Bridge%20groups%20are%20used%20to,the%20ASA%20to%20pass%20traffic.
upvoted 2 times
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getafix
1 year, 10 months ago
Selected Answer: C
A bridge group is a group of interfaces that the ASA bridges instead of routes. Bridge groups are only supported in Transparent Firewall Mode. Like any other firewall interfaces, access control between interfaces is controlled, and all of the usual firewall checks are in place. Each bridge group includes a Bridge Virtual Interface (BVI). The ASA uses the BVI IP address as the source address for packets originating from the bridge group. The BVI IP address must be on the same subnet as the bridge group member interfaces. The BVI does not support traffic on secondary networks; only traffic on the same network as the BVI IP address is supported. Only bridge group member interfaces are named and can be used with interface-based features. https://www.cisco.com/c/en/us/td/docs/security/asa/asa94/config-guides/cli/general/asa-94-general-config/intro-fw.html#ID-2106-00000012 While we can use BVIs for Firewall Management purposes, it isn't ONLY used for management. Answer C seems correct
upvoted 2 times
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Metgatz
1 year, 11 months ago
Selected Answer: A
A bridge group is a group of interfaces that the ASA bridges instead of routes. Bridge groups are supported in both transparent and routed firewall mode. Like any other firewall interfaces, access control between interfaces is controlled, and all of the usual firewall checks are in place
upvoted 1 times
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dr4gn00t
2 years, 3 months ago
Why not A? BVI can be assigned IP and be used for management afaik
upvoted 2 times
Laryoul
2 years, 1 month ago
I think that in case of multiple bridge group, this answer as no sense ... there is only one route table.
upvoted 1 times
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beeker98106
2 years, 6 months ago
more specific from below doc: About Bridge Groups A bridge group is a group of interfaces that the ASA bridges instead of routes. Bridge groups are only supported in Transparent Firewall Mode. Like any other firewall interfaces, access control between interfaces is controlled, and all of the usual firewall checks are in place
upvoted 1 times
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