WPF Interview Questions
1. What is WPF ? Why it is used?
2. What is XAML?
3. What is Dispatcher Object?
4. What is Dependency Object?
5. What is the architecture of WPF?
6.What is are Types of events and Event Routing or a Routed Event?
7. What is difference between Event Bubbling vs Event Tunneling? When to apply what?
8.What are difference between Win-Forms and WPF?
9. What are different types of Panels in WPF ?Explain them?
10.What is difference between StackPanel, DockPanel, WrapPanel and Grid?
11.What are Primitive Controls and Look Less Controls?
12.What are different important components to know in WPF? Explain them?
13. Why do you think WPF has more power?
14. What is difference between WPF and Web Applications which do you prefer? When to choose what?
15. Is Silverlight part of WPF or subset of WPF? What is difference between WPF and Silverlight
16. What is the class name from which all WPF objects are derived from?
17. How did you create Dependency Object?
18. How did you implement Dependency Property?
19. What is PRISM ? What are its advantages of using it in real time applications?
10. How did you install and implement PRISM in real-time applications?
Setting Up an Informational Interview
The first step is to identify people who have jobs that you find intriguing and inspiring. Be resourceful. Scour the Internet and read local newspapers and business publications. Tell your family, friends, neighbors, colleagues, former teachers and classmates about your interviewing endeavor and ask them for names of people with whom you should speak.
As you develop your list of potential contacts, send each person an introductory letter explaining your background, career goals, interests and what you hope to gain from the interview. Request 20 to 30 minutes of the person's time at their convenience. Be clear that you are seeking information only -- not a job. If the person is receptive to your request, ask for a face-to-face meeting at his or her workplace. While getting together for lunch or talking on the phone is fine, visiting the person's office will give you a better feel for the job.
Interview Questions on Networking, Part 2
What are the commonly used routing protocols?
Routers add entries to routing table with the help of routing protocols. The commonly used routing protocols are,
Routing Information Protocol(RIP):-
It is used to advertise the current status and information in the routing table, including the routes to the rest of the routers in every 30 seconds.
Open Shortest Path First(OSPF):-
It is used to determine the shortest path, otherwise known as the lowest cost path among the nodes of different networks.
What is a routing table?
A routing table contains the path information for data data packets to reach a particular inter-network. Basically this table consists of the following information,
Network ID, Subnet Mask, Gateway Address, Interface(port), and netric(hops or number of gaps between two internetworking devices).
Routers add entries to routing table with the help of routing protocols.
What is attenuation?
Attenuation is the degeneration or weakening of a signal over distance on a network cable. To avoid attenuation amplifiers or repeaters and short cables are used.
What is TCB(Transmission Control Block)?
A TCB is a complex data structure that contains informations about each connection.
What is silly window syndrome?
It is a problem that can affect TCP performance. This problem occurs when data are passed to the sending TCP entity in large blocks, but an interactive application on the receiving side reads only 1 byte at a time.
What is Beaconing?
The process that allows a network to self-repair networks problems is called Beaconing.
The stations on the network notify the other stations on the ring when they are not receiving the transmissions. Beaconing is used in Token ring and FDDI(Fibre Distributed Data Interface) networks.
The Worst Interview Faux Pas
1. Bad manners
"A cell phone goes off -- which you should just apologize for and turn off promptly, but I've had candidates look at the number, which really ticks off an interviewer."
"[The candidate asks,] 'When can I start?' Presumptuous and inappropriate."
"'Do you have something to eat? I am hungry.'"
"One candidate opened his briefcase and started snacking on crackers while interviewing."
2. Being weird
"Strangest thing ever -- a [University of Chicago] MBA student was doing very well during an interview, when a tape recorder spilled out of his briefcase. Very, very odd. He would have gotten a call back for a second round, but not after we saw that tape recorder. We still don't know what that was about! But we stayed away -- big time!" - Thanasoulis-Cerrachio
"I've heard some interesting ones, but the most bizarre was a prospective hire asking me if I was Jewish. Any religion would have been weird to inquire about in that situation ... maybe she was trying to form a bond?" - Justin Seibert, president of Direct Online Marketing
3. Giving a bad reason for wanting the job
"One answer to a question about why the applicant was looking to change jobs left me speechless. The candidate, a 20-something with about five years of work experience, said, 'Well, I've been twiddling my thumbs for six months.'"
4. Letting nervous tics control you
"You shouldn't repeat a phrase over and over again. I had one candidate say, 'There it is' at the end of about seven or eight responses. Very annoying and not impressive."
"Nervous leg bouncing syndrome: I once had a candidate who rocked her leg so much that she was physically moving during the interview. We ended up hiring her, which was a huge mistake -- one of the worst hires ever."
Interview Questions Decoded, Part 2
What are some of your hobbies?
What they're really asking: How well-rounded are you? What do you do outside of work that might transfer positively into the workplace?
Tips: Emphasize any hobbies or activities that may relate to the job. Help the interviewer learn more about you and perceive you as a person, rather than a job candidate. Therefore, don't just answer questions, respond to them.
Would you be willing to pursue an extra certificate or credential?
What they're really asking: How is your attitude? How flexible are you?
Tips: Tell the interviewer how important professional growth is to you. Understand that the person who will impress the interviewer the most is the one willing to do the extra work.
What were you hoping we'd ask today, but didn't?
What they're really asking: Is there anything special about yourself that you want us to know?
Tips: Consider this a "show and tell" opportunity. Use materials from your portfolio to convince them how valuable you'll be to their organization.
Do you have any questions for us?
What they're really asking: Are you prepared to ask questions? How interested are you in this position?
Tips: List five or six questions on an index card. Ask at least one question, even if all of your prepared questions have been answered. Never say, "No, you've answered all of my questions."
ASP.NET Master Pages – Interview Questions
What is Master Page in ASP.NET?
A Master page offers a template for one or more web forms. It defines placeholders for the content, which can be overridden by the content pages. The content pages contains only content. When users request the content page, ASP.NET merges the layout of the master page with the content of the content page and produce output.
Advantages of using Master Page in ASP.NET
Master pages enables consistent and standardized layout to the website.
You can make layout changes of the site in the master page instead of making change in the pages.
It is very easy to implement.
Advantages and disadvantages of using multithreading
Advantages:
Simultaneous access to multiple applications
Reduced number of required servers
Improved performance and concurrency
Simplified coding of remote procedure calls and conversations
Disadvantages:
Code writing, debugging, managing concurrency, testing, porting existing code is difficult in multithreading and multicontexting.
Programmers need to remove static variables and replace any code that is not thread-safe to introduce threading into a previously non threaded application.
Worst-Case Interview Scenarios
Here are some suggestions on how to handle unforeseen interview mishaps.
You Forgot Your Résumé Materials.
You grabbed your briefcase, but left your portfolio stuffed with your beautifully printed résumés, letters of recommendation and work examples sitting on your kitchen table.
Solution: "This can be easily handled if you planned ahead properly," Guarneri suggests. "Don't rely on just a paper résumé. Have your résumé available online somewhere, such as a blog, personal Web site or in your e-mail. Then it can be instantly retrieved from the interviewer's office."
You Have a Wardrobe Malfunction.
Somewhere between your house and the interviewer's office your smartly pressed suit ends up looking stupid. This happened to one of Guarneri's clients who was splashed by a passing cab right outside the building of the company with which he was going to interview.
Solution: Guarneri recommends continuing to your interview and briefly explaining what happened. Almost everyone has had a wardrobe malfunction occur at an inopportune time -- your interviewer will likely be empathetic to your mud speckled trousers.
You're Late.
Whether you overslept or your train stalled on the tracks, either way, you know you're going to be late for your interview.
Solution: "If you can see you're going to be late, immediately call ahead and let them know," Guarneri advises. That way you won't keep your interviewer waiting and you give them the chance to call the shots -- squeeze you in for a later appointment or reschedule for another day.
The Interviewer is Distracted.
Another of Guarneri's clients entered an interview only to find the interviewer sitting with his head in his hands and didn't even look up when her client entered the room and sat down.
Solution: If they're not listening when you're talking, are they bored? Are they stressed with other projects?
"Pick up on the emotional cues the interviewer is delivering," Guarneri says. "Then recognize the situation and get their attention." In this case, her client said, "If this is a really bad time, I can come back."
You Forget the Name of the Person You're Interviewing With.
You're nervous during an interview and it's common for your mind to go blank.
Solution: If you didn't write it down on, don't see a nameplate on the desk, or can't read it off of certificates adorning the walls, don't fake it, Guarneri warns. Find an opportune time to ask the interviewer for his or her business card, by saying something like, "Before I forget, could have one of your business cards?"
