U.S. Independence Day Deal! Unlock 25% OFF Today – Limited-Time Offer - Ends In 00:00:00 Coupon code: SAVE25

- Free Preparation Discussions

Exin CDCS Exam - Topic 3 Question 22 Discussion

Actual exam question for Exin's CDCS exam

Question #: 22
Topic #: 3

[All CDCS Questions]

What is the main advantage of using an End-of-Row (EoR) design?

AA single Top-of-Rack (ToR) switch is more expensive than an EoR switch

BYou need a separate rack to install all your EoR switches

CThere will be fewer switches to manage (corrected typing: original said ''more'')

DA ToR switch has only optical interfaces

Show Suggested Answer

Suggested Answer: C

EoR centralizes access/aggregation switches at the end of each row, reducing the number of access switches compared with ToR (one per rack), which simplifies management and often lowers Ops costs.

A, D are incorrect generalizations.

B is a characteristic (housing EoR switches in a dedicated cabinet) but not the key advantage.

===========

by Goldie at Nov 20, 2025, 01:40 PM

Limited Time Offer

25%

Off

Get Premium CDCS Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Remedios

2 months ago

Yeah, C just makes sense for efficiency.

upvoted 0 times

...

Enola

2 months ago

I feel like C really simplifies the setup.

upvoted 0 times

...

Francoise

2 months ago

True, but managing fewer switches saves time overall.

upvoted 0 times

...

Beula

3 months ago

But what about A? ToR switches can be pricey.

upvoted 0 times

...

Diane

3 months ago

Agreed! Less complexity is a huge plus.

upvoted 0 times

...

Lonny

3 months ago

I think C is the best choice. Fewer switches means easier management.

upvoted 0 times

...

Dominic

3 months ago

Definitely a game changer for large data centers!

upvoted 0 times

...

Glenna

4 months ago

I thought ToR switches were more efficient though?

upvoted 0 times

...

Monroe

4 months ago

Wait, are EoR switches really cheaper overall?

upvoted 0 times

...

Johnna

4 months ago

Totally agree, less complexity is always better.

upvoted 0 times

...

Youlanda

4 months ago

Fewer switches to manage is a big plus!

upvoted 0 times

...

Raelene

4 months ago

Haha, who needs more switches to manage? I'll take the EoR design any day!

upvoted 0 times

...

Junita

5 months ago

C) Fewer switches to manage? Sign me up! I'd rather spend my time on more important tasks.

upvoted 0 times

...

Lavera

5 months ago

D) A ToR switch has only optical interfaces? Wow, I didn't know that. Sounds like a real limitation.

upvoted 0 times

...

Luisa

5 months ago

I thought EoR was beneficial because it centralizes management, but I might be mixing it up with other designs.

upvoted 0 times

...

Lawana

5 months ago

I feel like the cost comparison between ToR and EoR switches was mentioned in class, but I can't recall the details.

upvoted 0 times

...

Una

5 months ago

I remember practicing a question about switch management, and I think EoR designs help simplify that.

upvoted 0 times

...

Cecily

5 months ago

I think the main advantage is about managing fewer switches, but I'm not entirely sure if that's the only reason.

upvoted 0 times

...

Audrie

6 months ago

Ah, I see. The key is identifying the main advantage, not just any advantage. I think C is the strongest answer here, but I'll review my notes to make sure I'm not missing anything.

upvoted 0 times

...

Lettie

6 months ago

The question is asking about the main advantage, so I need to focus on which option provides the biggest benefit. I'm leaning towards C, but I'll double-check the other choices just to be sure.

upvoted 0 times

...

Tawanna

6 months ago

C) There will be fewer switches to manage, which means less headache for the IT team.

upvoted 0 times

...

Remedios

7 months ago

A) A single Top-of-Rack (ToR) switch is more expensive than an EoR switch? That's a no-brainer, right?

upvoted 0 times

...

Thea

7 months ago

Hmm, I'm not sure about this one. The options don't seem very clear to me. I'll have to think it through carefully.

upvoted 0 times

...

Kirk

7 months ago

I think the main advantage is that there are fewer switches to manage, so that seems like the best answer.

upvoted 0 times

Joesph

2 months ago

Plus, it can save on costs in the long run!

upvoted 0 times

...

Cyndy

2 months ago

I was leaning towards that answer too.

upvoted 0 times

...

Dion

2 months ago

Definitely! It simplifies management a lot.

upvoted 0 times

...

Carman

6 months ago

I agree, fewer switches mean less hassle.

upvoted 0 times

...

Margo

6 months ago

Makes sense, less equipment to monitor.

upvoted 0 times

...

...