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CertNexus ITS-110 Exam - Topic 7 Question 70 Discussion

Posted by Lisha on May 02, 2026 at 07:27 PM

What is one popular network protocol that is usually enabled by default on home routers that creates a large attack surface?

Suggested Answer: B

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25 comments · newest first
KA
Karol 9 days ago
Definitely! Many people overlook this setting.
MO
Mona 14 days ago
UPnP should be disabled unless needed.
AL
Alva 19 days ago
NAT is important, but UPnP is more vulnerable.
AR
Argelia 25 days ago
I would go with B too. It's risky for home networks.
XU
Xuan 30 days ago
True! It creates a big attack surface for hackers.
LO
Loren 1 month ago
I feel like many users don't even know it's on.
GE
Georgeanna 1 month ago
Agreed! UPnP can expose devices to attacks.
FL
Fletcher 2 months ago
I think it's B) Universal Plug and Play (UPnP). It's often enabled by default.
JA
Jani 2 months ago
I didn't know UPnP was a problem until now.
SY
Sylvie 2 months ago
UPnP should be disabled for security.
NA
Nakita 2 months ago
Definitely B) UPnP. It opens many ports automatically.
BE
Bettina 2 months ago
UPnP is convenient but dangerous.
QU
Quinn 2 months ago
UPnP allows easy access for attackers.
CH
Chauncey 3 months ago
I feel like NAT is safer. But UPnP is risky.
MA
Marge 3 months ago
Yeah, I agree! UPnP can expose devices.
ME
Melissa 3 months ago
I think it's B) UPnP. It's often enabled by default.
CL
Clay 3 months ago
Disagree, NAT is pretty secure if configured right.
NU
Nu 3 months ago
Yup, UPnP is a huge attack surface.
LO
Lore 3 months ago
Wait, UPnP is a big risk? I had no idea!
ME
Meghan 4 months ago
I thought NAT was the one that creates security issues?
AL
Alverta 4 months ago
Definitely UPnP, it's often left on by default.
SH
Shalon 4 months ago
I remember discussing UPnP in class, but I also feel like DNSSEC could be relevant. However, I think UPnP is the most likely answer here.
VE
Verona 5 months ago
I’m a bit confused; I thought NAT also had some security features. Is it really considered an attack surface like UPnP?
JU
Junita 6 months ago
I recall practicing a question like this, and UPnP was definitely highlighted as a common vulnerability. It seems to be the right choice.
DU
Dustin 6 months ago
I think the answer might be UPnP, but I'm not entirely sure. I remember it being mentioned in a lecture about home network security.
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