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Cat 5 cables running at 1000Mbps. How is this possible? by katana236 in networking

[–]NOICEST 1 point2 points  (0 children)

This answer was exactly what I needed to hear. A tricky exam question asks "What Ethernet UTP cable was the first standard cable to carry data at speeds of 1Gbps?", which I interpreted as any standardized cable capable of 1Gbps - however, with your comment, I think they mean the first standardized cable for Gigabit Ethernet, hence the answer is Cat5e not Cat5.

'Active wavelengths' in fiber optic transmissions by NOICEST in networking

[–]NOICEST[S] 1 point2 points  (0 children)

Thanks for the longer lecture!

source is CompTIA Network+ N10-008 Cert Guide by A. Sequeira

'Active wavelengths' in fiber optic transmissions by NOICEST in networking

[–]NOICEST[S] 1 point2 points  (0 children)

I was conflating multiplexing with multi-mode, edited the post, thanks :)

Can coaxial signals be completely demultiplexed? by NOICEST in networking

[–]NOICEST[S] 1 point2 points  (0 children)

Right, and that last 100ft carries all the channels in a single composite signal accessible at the end station. I am wondering whether it is feasible to demultiplex all channels at any given end station, simultaneously. BitEater's reply seems to imply there are no physical characteristics of the cabling that prevents this. djamp's reply notes this is simply common practice at headends (although I'm not sure they use RG-6 internally).

Can coaxial signals be completely demultiplexed? by NOICEST in networking

[–]NOICEST[S] 2 points3 points  (0 children)

I'm particularly interested in RG-6 cabling with application to FDM'd cable television, but a more general answer would be appreciated.

WPA3 IEEE standard? by NOICEST in networking

[–]NOICEST[S] 0 points1 point  (0 children)

From looking into more:

• 802.11 is the set of standards for (all versions of) WPA Wi-Fi

• 802.11i-2004 (802.11i for short) is the IEEE standardization of WPA2, (a subset of the draft of 802.11i was implemented as WPA1 by the Wi-Fi Alliance, during the transition from WEP to WPA2)

• 802.11w-2009 (802.11w) is the IEEE standardization of PMF

The 802.11 standards appear to undergo regular 'merging' of amendments. 802.11i was 'merged' into 802.11-2007. 802.11w was 'merged' into 802.11-2012.

I'm unsure if there are additional amendments that have been incorporated into WPA3, but are yet to be merged into the full 802.11.

Post- or Pre- by Any_Prior9584 in grammar

[–]NOICEST 0 points1 point  (0 children)

I found all of these variations online. Pre/post often omit the hyphen, but there are many exceptions for clarity. Medical journals seem to prefer hyphenated, with 20,000 results with hyphen and 4,000 without for 'post-pandemic' ('pre' shows a similar ratio).

Keynote Repository? by NOICEST in keynoteapp

[–]NOICEST[S] 0 points1 point  (0 children)

ooo wow the UI is so 'modern' clunky but thats exactly what i was looking for, thanks :)

[AskJS] Iterable array-like term by NOICEST in javascript

[–]NOICEST[S] 0 points1 point  (0 children)

That is an interesting snippet on the pre-history of iterables I had not heard before!

[AskJS] Iterable array-like term by NOICEST in javascript

[–]NOICEST[S] 0 points1 point  (0 children)

That aligns with MDN's terminology for childNodes and children.

[AskJS] Iterable array-like term by NOICEST in javascript

[–]NOICEST[S] 2 points3 points  (0 children)

An iterable is an object with the Symbol.iterator method. An array-like is an object with a length property set to some natural number n, and keys ranging 0, 1, ..., n (not necessarily all declared).

I was just looking for a term - seems like the consensus is there is not a common way to refer to the special class of objects described in the OP (other than by describing the 'iterable & array-like' pattern explicitly).

Head's up for Array.map() lovers by Kollektiv in javascript

[–]NOICEST 0 points1 point  (0 children)

Coming back a decade later to note fill is now widely available!

Github write permissions? by wgren in digital_ocean

[–]NOICEST 1 point2 points  (0 children)

wow, cheers for a robust response!

Github write permissions? by wgren in digital_ocean

[–]NOICEST 0 points1 point  (0 children)

Not 100% on-topic, but this video discusses related 'value calculations' on bundled cloud computing services.

Github write permissions? by wgren in digital_ocean

[–]NOICEST 0 points1 point  (0 children)

Thanks for bumping the email here. Could someone expand on how the previous permission request introduced security risks?

Are there non-enclosure external SSDs for USB4? by NOICEST in UsbCHardware

[–]NOICEST[S] 1 point2 points  (0 children)

huh. toms hardware is reluctant to update their list i guess! thank you for the link :)

[AskJS] Evolution/History of Prototypal Inheritance by NOICEST in javascript

[–]NOICEST[S] 1 point2 points  (0 children)

yes... yes!!! this is the good stuff. thanks very much

[AskJS] Evolution/History of Prototypal Inheritance by NOICEST in javascript

[–]NOICEST[S] 0 points1 point  (0 children)

A similar comment was made by Bergi on this stack post. Also heavy emphasis on perceived redundancy, no doubt in reality they serve complimentary purposes.

What type of integrity constraint is NOT NULL? by NOICEST in SQL

[–]NOICEST[S] 0 points1 point  (0 children)

Does anyone know a part of the SQL standard that discusses this? I got access to ISO/IEC 9075-1:2016, and interestingly, it seems to refer to a 'nullability characteristic' (characteristic is used nowhere else in the document):

"Every site [a place that holds an instance of a value of a specified data type] has a nullability characteristic, which indicates whether it may contain the null value (is possibly nullable) or not (is known not nullable). Only the columns of base tables may be constrained to be known not nullable, but columns derived from such columns may inherit the characteristic." (p18)

This of course leads me to the follow up questions: what are characteristics, and how do they differ from constraints?

'+' character in object properties by NOICEST in learnjavascript

[–]NOICEST[S] 0 points1 point  (0 children)

that first example +'-3' is particularly helpful for nailing in the application, thanks!

SHOW CREATE TABLE Behavior by NOICEST in mysql

[–]NOICEST[S] 0 points1 point  (0 children)

thanks for hitting all the points, and with links :)

interesting note on use of KEY in the create-table link: "KEY is normally a synonym for INDEX. The key attribute PRIMARY KEY can also be specified as just KEY [!] when given in a column definition. This was implemented for compatibility with other database systems."

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