Eccouncil 312-49 Exam - Topic 1 Question 48 Discussion

Actual exam question for Eccouncil's 312-49 exam

Question #: 48
Topic #: 1

[All 312-49 Questions]

What technique is used by JPEGs for compression?

AZIP

BTCD

CDCT

DTIFF-8

Show Suggested Answer

Suggested Answer: B

by Mireya at Aug 30, 2023, 11:10 AM

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Apolonia

6 months ago

ZIP is for files, not images! DCT is the way to go.

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Daniel

6 months ago

I heard it’s not just DCT, but that’s the main part.

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Lili

6 months ago

Wait, is it really DCT? I thought it was something else!

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Marcelle

7 months ago

Totally agree, it's all about the Discrete Cosine Transform.

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Shayne

7 months ago

JPEG uses DCT for compression!

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Jeanice

7 months ago

TIFF-8 doesn’t sound right for JPEG compression, but I’m a bit confused about the other options.

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Virgina

7 months ago

I feel like I’ve seen DCT mentioned in practice questions before, but I can’t recall if it’s the right answer here.

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Edna

7 months ago

I remember studying compression techniques, but I’m not sure if it was DCT or something else like ZIP.

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Lai

8 months ago

I think JPEG uses some kind of transformation for compression, maybe DCT? That sounds familiar.

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Louisa

8 months ago

Okay, I've got this. JPEG uses discrete cosine transform (DCT) to compress image data by transforming the pixel information into frequency domain. I'm confident that's the right answer.

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Sang

8 months ago

Wait, is it not ZIP? I thought JPEG used a similar compression algorithm to ZIP files. I'll have to think this through more carefully.

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Brandon

8 months ago

DCT, that's the one! I remember learning about how JPEG uses discrete cosine transform to compress image data. Definitely going with that option.

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Vincent

8 months ago

Hmm, I'm a bit unsure about this one. I know JPEG uses some kind of compression, but I can't quite remember the specific technique. Let me think this through.

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Arlean

8 months ago

I'm pretty sure it's DCT, but I'll double-check the details in my notes just to be sure.

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Brianne

8 months ago

I'm a bit confused on this one. I'll have to review the material on image compression techniques to make sure I choose the right answer.

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Lashawnda

8 months ago

Okay, I remember learning about DCT in class. That's the technique used for JPEG compression, so I'll select option C.

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Lasandra

8 months ago

DCT sounds familiar, but I want to double-check that in my notes before committing to an answer.

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Aleisha

8 months ago

Hmm, I'm not entirely sure about this one. I'll have to think it through carefully before selecting an answer.

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Allene

8 months ago

I'm pretty sure JPEGs use DCT (Discrete Cosine Transform) for compression, so I'll go with option C.

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Mozell

8 months ago

Hmm, this looks like a tricky one. I'll need to carefully read through the code and think it through step-by-step.

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Coral

8 months ago

Hmm, this looks like a tricky one. I'll need to think through the different options carefully.

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Sol

8 months ago

I feel like I might need to double-check how the YANG structure interacts with XPath.

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Sherita

8 months ago

I think the key here is understanding how routing protocols like OSPF and EIGRP determine the best path. Metrics and administrative distance would be my top picks.

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