A Technical I.T./DevOps Blog
Question
In networking, you have read about latency and jitter. How are the two terms different?
Answer
“Jitter is used to describe the amount of inconsistency in latency across the network, while latency measures the time it takes for data to reach its destination and ultimately make a round trip.” Taken from https://www.networkmanagementsoftware.com/jitter-vs-latency/.
Clock jitter can create logging discrepancies;
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Continue reading “How Is Jitter Different from Latency in Networking?”
Question
In the context of I.T. what is a punch list?
Answer
A set of discrete items for an automation solution (e.g., a script or program) to accomplish. To read more, see https://en.wikipedia.org/wiki/Punch_list#Construction_punch_list_software.
It is merely a checklist that may be codified.
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The adoption of open-source software is continually on the rise, thanks to its endless benefits to modern business environments. Most companies, especially startups, prefer open-source databases to reduce the cost and time used for software development. Open-source applications also give businesses a level playing field and the freedom to leverage the latest technology without high upfront costs.
Unfortunately, like other comparable applications, open-source software has security defects. Estimates suggest that over 80% of open source software projects have security vulnerabilities (according to cpomagazine.com).
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Continue reading “How Can We Keep Open-Source Applications Secure?“
Photo credit: Pexels.com
As a parent, you want to make sure your child gets a well-rounded education that sets them up for success in adulthood. To better supervise your little one’s learning, you may opt to homeschool them. This can be preferable if you live in a public school district that doesn’t have a great reputation, for example, and you don’t want to pay pricey private school tuition.
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Continue reading “Advantages of Homeschooling Your Kids and How to Make the Most of It”
Question
There are many different components to weightlifting. What is the most important item for weight training?
Answer
The shoes (according to page 68 of Starting Strength, and this posting).
Running shoes are not ideal for weightlifting (according to page 68 of Starting Strength).
You may want to buy weightlifting shoes from Amazon (as many shoe stores do not carry them to allow you to try them on first).
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Continue reading “What Is The Most Important Equipment a Weightlifter Can Own?”
Question
Windows is to DLL as Unix is to what?
a. /etc/ configuration file
b. SO file
c. /tmp/ file
d. /bin/ file
e. None of the above.
Answer B. SO file. Source: Page 345 of Continuous Delivery by Humble and Farley.
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Problem scenario
You have seen the PowerCLI -f option. What does it mean or do?
…-f ($_.SizeGB)…
Solution
It manipulates the format of the output of a PowerCLI command usually to make the output more readable; one purpose is to make the output consumable for another PowerCLI command.
(The answer was adapted from pages 114 and 115 of PowerCLI Cookbook by Sellers.)
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Problem scenario
You see a dictionary used with the enumerate reserved word in Python.
Here is an example:
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good_dict = {}
good_dict[”size”] = “medium”
good_dict[”quantity”] = “80”
good_dict[”location”] = “New_York”
good_dict[”phone”] = “555-555-5555”
for idx1, good_key in enumerate(good_dict):
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Solution
A counter (a unique integer) can be assigned to each key. For logic-building purposes, it is beneficial. The above snippet would prepare a for loop for logic with 1) integers uniquely being assigned to the keys of the dictionary and 2) the keys of the dictionary.
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Continue reading “Why Would You Use the enumerate Keyword with a dictionary in Python?”
Problem scenario
You cannot install Linux because you get “no efi system partition was found”. What should you do?
Solution
When partitioning your server, one file system type should be “EFI System Partition” for at least one partition. (Technically it is not a file system type. You use a partition as an EFI System Partition.) See “Create EFI System Partition” here.
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Continue reading “How Do You Install Linux when You Get “no efi system partition was found”?”
Question
Was Buffalo Bills player #3 Damar Hamlin much smaller than the offensive player Cincinnati Bengals player #85 Tee Higgins?
Answer
No.
Damar Hamlin is 6’1″ (according to the NFL website).
At 201 pounds he was only 15 pounds lighter than the offensive player Tee Higgins (according to the NFL website) whose shoulder pad hit Dama Hamlin’s chest.
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