ExamTopics Logo
Mail Us[email protected]
Menu
Google Discussions
exam questions

Exam Professional Cloud Network Engineer All Questions

View all questions & answers for the Professional Cloud Network Engineer exam
Go to Exam

Exam Professional Cloud Network Engineer topic 1 question 190 discussion

Actual exam question from Google's Professional Cloud Network Engineer
Question #: 190
Topic #: 1
[All Professional Cloud Network Engineer Questions]

Your organization wants to set up hybrid connectivity with VLAN attachments that terminate in a single Cloud Router with 99.9% uptime. You need to create a network design for your on-premises router that meets those requirements and has an active/passive configuration that uses only one VLAN attachment at a time. What should you do?

  • A. Create a design that uses the LOCAL_PREF BGP attribute to influence the egress path from Google Cloud to the on-premises environment.
  • B. Create a design that uses an equal-cost multipath (ECMP) with flow-based hashing on your on-premises devices.
  • C. Create a design that uses a BGP multi-exit discriminator (MED) attribute to influence the egress path from Google Cloud to the on-premises environment.
  • D. Create a design that uses the AS_PATH BGP attribute to influence the egress path from Google Cloud to the on-premises environment.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by b0b25 at Feb. 22, 2025, 3:05 a.m.

Comments

Chosen Answer:
This is a voting comment (?). It is better to Upvote an existing comment if you don't have anything to add.
Switch to a voting comment New
Submit Cancel
n2183712847
3 months, 1 week ago
Selected Answer: C
BGP multi-exit discriminator (MED)
upvoted 1 times
...
mohitms1996
4 months, 2 weeks ago
Selected Answer: C
You're absolutely right! Local Preference (LOCAL_PREF) is a BGP attribute used to influence egress traffic within the same Autonomous System (AS). It helps on-premises routers decide which path to use when sending traffic to Google Cloud. However, in the given scenario, we need to influence Google Cloud’s egress path to on-premises. Multi-Exit Discriminator (MED) is the preferred attribute for this because it influences the egress traffic from Google Cloud towards on-premises.
upvoted 1 times
...
RKS_2021
4 months, 2 weeks ago
Selected Answer: C
Changing answer to C
upvoted 1 times
...
rich_maverick
4 months, 3 weeks ago
Selected Answer: A
A is correct. MED is a negotiated attribute between routers and is not guaranteed. Local Preference has higher priority than MED.
upvoted 1 times
...
1f01b87
5 months ago
Selected Answer: C
The BGP multi-exit discriminator (MED) attribute is used in BGP configurations to influence the choice of path in an active/passive setup by prioritizing one path over another for egress traffic. This is ideal for a design that uses only one VLAN attachment at a time.
upvoted 1 times
...
1f01b87
5 months ago
Selected Answer: C
It's C as per this google doc. https://cloud.google.com/network-connectivity/docs/interconnect/how-to/dedicated/configuring-onprem-routers#configuring-devices-for-activepassive-forwarding
upvoted 2 times
...
RKS_2021
5 months, 1 week ago
Selected Answer: A
A is correct
upvoted 1 times
...
b0b25
5 months, 3 weeks ago
Selected Answer: A
Local Preference is used to influence egress traffic within an Autonomous System (AS). It determines which exit point to use for outbound traffic
upvoted 2 times
...
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.

Upvoting a comment with a selected answer will also increase the vote count towards that answer by one. So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.

SaveCancel