are network engineer expected to answer all questions during interview? if someone does not answer couple of questions do they stand a chance?
Nope !! Post the questions asked
In interviews I have led, the questions are used to determine how broad and deep your specific knowledge set is. We usually start off with a “we don’t expect a person to be able to answer all of these” type statement. How you handle the questions you don’t know is almost as informative as the ones you do.
Hey, are you in Colorado or East coast?
How to tag fb and apple to the response request... I am not the op
Ehhhhhhhh I'd say this is company dependent, and there are big differences between an SMB/ private enterprise net eng and a Telecom net eng Net Eng interviews are also terribly dated imo from a Telecom perspective. I never needed to do subnet calcs by hand, nor would I trust myself or anyone else to in a prod Network, that's what IP management systems are for. The one time I wanted to mirror customer traffic and perform packet inspection for troubleshooting it almost went to legal, so that's out. Those things would be bread and butter for certain types of smaller companies where there is not 20 miles of red tape and third party privacy concerns. Google and FB are in a completely different class in nearly every regard I would imagine, as they work on in house systems at a scale I seriously doubt we even see. I've read some of their white papers and the level of software/ hardware engineering they do is incredible. I look specifically for problem solving approaches, and broad platform experience (not expertise) in candidates. Domain knowledge is good, but I prefer trainable problem solvers with common sense, better long term hires. If you are a hybrid SDE I/Net Eng II, I'll recommend a hire almost immediately with the heavy future focus on automation and custom development.
If I'm being interviewed, I expect to be knowledgeable and able to speak on 90% of the topics. When asked something I was unsure of, it's best to be honest that you don't know, but also attempt to make an educated guess. When I've interviewed people I also expect them to answer most of my questions accurately. Though their presentation and honesty is also important. If you think you're just gonna bullshit me, it's usually pretty obvious and you go to the bottom of the list. If you dont know, be honest. At the end of the day, if you know most of the answers and are honest about anything you might not know, you are going to stand a chance, absolutely.