12 Essential Apache Spider Web Server Interview Questions Answers - Coffee & Linux
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Judul : 12 Essential Apache Spider Web Server Interview Questions Answers - Coffee & Linux
link : 12 Essential Apache Spider Web Server Interview Questions Answers - Coffee & Linux
Anda sekarang membaca artikel 12 Essential Apache Spider Web Server Interview Questions Answers - Coffee & Linux dengan alamat link https://bestlearningjava.blogspot.com/2017/05/12-essential-apache-spider-web-server.html
Judul : 12 Essential Apache Spider Web Server Interview Questions Answers - Coffee & Linux
link : 12 Essential Apache Spider Web Server Interview Questions Answers - Coffee & Linux
12 Essential Apache Spider Web Server Interview Questions Answers - Coffee & Linux
The Apache HTTP Server, besides known every bit httpd, has been the most pop spider web server on the Internet since Apr of 1996. It is both costless in addition to robust in addition to that's the argue that almost one-half of the world's websites runs on Apache HTTP spider web server, ranging from pocket-size hobby websites to huge e-commerce giants in addition to big banks. There are besides many companies which role Apache in addition to Tomcat to host Java spider web application. In a typical setup, Apache spider web server receives the HTTP asking in addition to depending upon the URL it either road to Tomcat or serve the static files straight from the file system. These questions are based to a greater extent than oftentimes than non on that experience. Though Apache is non but famous inwards Java basis it is fifty-fifty to a greater extent than pop amongst other spider web technologies e.g. Perl, PHP, in addition to MySQL. It's 1 of the powerful in addition to secure spider web servers thence anyone tin role it to grip HTTP traffic. It supports both HTTP in addition to HTTPS. It's worth noting that Apache is besides an HTTP/1.1 compliant spider web server.
My collection contains 12 Apache httpd spider web server interview questions from Java in addition to spider web interviews. The questions are focused on practical cognition of working amongst apache server running on Linux environment. Since many banks in addition to big companies role Apache httpd server together amongst Tomcat thence that they tin serve static resources using Apache in addition to dynamic resources using Tomcat, these questions besides banking concern gibe your agreement of how Apache httpd spider web server in addition to Tomcat travel together inwards Linux.
1) What is Apache Web Server?
Apache Web Server is 1 of the most secure, powerful in addition to pop opened upward source HTTP servers. It tin endure used to host anything from personal websites to corporate domains. The Apache HTTP Server, besides known every bit "httpd" (HTTP daemon) was launched inwards 1995 in addition to it has been the most pop spider web server on the Internet since Apr 1996. The latest version of Apache Web server is Apache httpd 2.4.23 which was released on 2016-07-05.
2) Does Apache back upward HTTP-only or it besides back upward HTTPS?
Apache supports both HTTP in addition to HTTPS protocol. It is HTTP/1.1 specification compliant spider web server
3) How create yous uncovering the port on which Apache Web Server is listening?
You tin banking concern gibe the httpd.conf file for the keyword "Listen", that defines the port on which Apache listen. Alternatively, yous tin role netstat command inwards Linux to uncovering the port on which Apache spider web server is listening every bit shown below:
$ netstat -nap | grep httpd
tcp 0 0 0.0.0.0:10202 0.0.0.0:* LISTEN 3988/httpd
4) How create yous uncovering which asking are forwarded to tomcat?
You tin banking concern gibe the mod_jk.conf in addition to workers.properties file to uncovering out virtually charge balancer in addition to the port on which they are listening. So, suppose Tomcat is listening on port 23454 thence asking coming on that port to Apache volition endure forwarded to the Tomcat.
5) How create yous commencement in addition to halt Apache Web Server inwards Linux?
You tin role next commands to commencement in addition to halt the Apache spider web server inwards Linux
$ cd bin -- where bin is apache bin directory
$ ./apache.sh stop
$ ./apache.sh start
6) How create yous uncovering which version of Apache Web Server yous are using?
Just run the next ascendance inwards bin directory of Apache spider web server, it volition display the version
$ ./apache.sh version
7) What is the deviation betwixt a restart in addition to a graceful restart of a spider web server?
Answer: During a normal restart, the server is stopped in addition to thence started, causing but about requests to endure lost. Influenza A virus subtype H5N1 graceful restart allows Apache children to travel yesteryear on to serve their electrical flow requests until they tin endure replaced amongst children running the novel configuration. See Pro Apache (Expert's Voice) learn to a greater extent than virtually fundamentals of Apache HTTP server.
8) What is the head deviation betwixt in addition to sections?
Answer: The Directory sections refer to file arrangement objects; Location sections refer to elements inwards the address bar of the spider web page
9) What is DocumentRoot?
Answer: it is a location of files which are accessible yesteryear clients. By default, the Apache HTTP server inwards RedHat Enterprise Linux is configured to serve files from the /var/www/html/ directory.
10) How to restart Apache spider web server?
Answer: service httpd restart or /etc/init.d/httpd restart. You tin besides refer Apache CookBook to larn to a greater extent than virtually day-to-day materials of Apache spider web server e.g. tuning logging or adding but about mutual modules.
11) What are but about of import configuration files of Apache HTTP Server?
The httpd.conf is the head config file for Apache spider web server. If your Apache is communicating to Tomcat thence yous tin besides run across mod_jk.conf, workers.properties in addition to alias.properties inwards conf folder.
12) Which configuration files yous volition facial expression to sympathise how Apache communicates to Tomcat?
The mod_jk.conf in addition to the workers.properties file is used to specify tomcat related config e.g. which URL should endure routed to tomcat, which port to psyche etc
That's all virtually but about basic Apache Web Server Interview Questions in addition to Answers. These questions volition help yous to sympathise Apache HTTP server to a greater extent than inwards petty to a greater extent than item in addition to give yous but about thought of what yous tin facial expression inwards Java in addition to Web evolution interview which require developing venture spider web application using Java technologies e.g. Servlet, JSP, JSF, Spring, or JEE etc.
Btw, Apache is used non but inwards Java infinite but anywhere where a spider web server is required to serve HTML files or other static resources. You tin works life Apache with.NET projects or fifty-fifty PHP projects, fifty-fifty most of the cyberspace sites are built using Apache, PHP, MySQL in addition to Linux. You tin besides read Pro Apache (Expert's Voice) or Apache: The Definitive Guide to larn to a greater extent than virtually Apache fundamentals, Security, SSL, Performance in addition to mistake treatment inwards Apache.
Some to a greater extent than interview questions articles for Java spider web developers
References
http://httpd.apache.org/docs/
http://httpd.apache.org/docs-project/
My collection contains 12 Apache httpd spider web server interview questions from Java in addition to spider web interviews. The questions are focused on practical cognition of working amongst apache server running on Linux environment. Since many banks in addition to big companies role Apache httpd server together amongst Tomcat thence that they tin serve static resources using Apache in addition to dynamic resources using Tomcat, these questions besides banking concern gibe your agreement of how Apache httpd spider web server in addition to Tomcat travel together inwards Linux.
Top 12 Apache Web Server Interview Questions
Here is my listing of Apache spider web server interview questions. The listing is yesteryear no way consummate or exhaustive, it but contains but about essential questions to verify if a candidate has genuinely worked inwards Apache spider web server in addition to Tomcat or not. I recall to maintain this listing up-to-date in addition to add together few to a greater extent than questions whenever I uncovering from my beak amongst friends in addition to colleagues interviewing. You tin besides help to part Apache in addition to Tomcat related questions yous convey faced earlier on Java or Web evolution interviews.1) What is Apache Web Server?
Apache Web Server is 1 of the most secure, powerful in addition to pop opened upward source HTTP servers. It tin endure used to host anything from personal websites to corporate domains. The Apache HTTP Server, besides known every bit "httpd" (HTTP daemon) was launched inwards 1995 in addition to it has been the most pop spider web server on the Internet since Apr 1996. The latest version of Apache Web server is Apache httpd 2.4.23 which was released on 2016-07-05.
2) Does Apache back upward HTTP-only or it besides back upward HTTPS?
Apache supports both HTTP in addition to HTTPS protocol. It is HTTP/1.1 specification compliant spider web server
3) How create yous uncovering the port on which Apache Web Server is listening?
You tin banking concern gibe the httpd.conf file for the keyword "Listen", that defines the port on which Apache listen. Alternatively, yous tin role netstat command inwards Linux to uncovering the port on which Apache spider web server is listening every bit shown below:
$ netstat -nap | grep httpd
tcp 0 0 0.0.0.0:10202 0.0.0.0:* LISTEN 3988/httpd
4) How create yous uncovering which asking are forwarded to tomcat?
You tin banking concern gibe the mod_jk.conf in addition to workers.properties file to uncovering out virtually charge balancer in addition to the port on which they are listening. So, suppose Tomcat is listening on port 23454 thence asking coming on that port to Apache volition endure forwarded to the Tomcat.
5) How create yous commencement in addition to halt Apache Web Server inwards Linux?
You tin role next commands to commencement in addition to halt the Apache spider web server inwards Linux
$ cd bin -- where bin is apache bin directory
$ ./apache.sh stop
$ ./apache.sh start
6) How create yous uncovering which version of Apache Web Server yous are using?
Just run the next ascendance inwards bin directory of Apache spider web server, it volition display the version
$ ./apache.sh version
7) What is the deviation betwixt a restart in addition to a graceful restart of a spider web server?
Answer: During a normal restart, the server is stopped in addition to thence started, causing but about requests to endure lost. Influenza A virus subtype H5N1 graceful restart allows Apache children to travel yesteryear on to serve their electrical flow requests until they tin endure replaced amongst children running the novel configuration. See Pro Apache (Expert's Voice) learn to a greater extent than virtually fundamentals of Apache HTTP server.
8) What is the head deviation betwixt in addition to sections?
Answer: The Directory sections refer to file arrangement objects; Location sections refer to elements inwards the address bar of the spider web page
9) What is DocumentRoot?
Answer: it is a location of files which are accessible yesteryear clients. By default, the Apache HTTP server inwards RedHat Enterprise Linux is configured to serve files from the /var/www/html/ directory.
10) How to restart Apache spider web server?
Answer: service httpd restart or /etc/init.d/httpd restart. You tin besides refer Apache CookBook to larn to a greater extent than virtually day-to-day materials of Apache spider web server e.g. tuning logging or adding but about mutual modules.
11) What are but about of import configuration files of Apache HTTP Server?
The httpd.conf is the head config file for Apache spider web server. If your Apache is communicating to Tomcat thence yous tin besides run across mod_jk.conf, workers.properties in addition to alias.properties inwards conf folder.
12) Which configuration files yous volition facial expression to sympathise how Apache communicates to Tomcat?
The mod_jk.conf in addition to the workers.properties file is used to specify tomcat related config e.g. which URL should endure routed to tomcat, which port to psyche etc
That's all virtually but about basic Apache Web Server Interview Questions in addition to Answers. These questions volition help yous to sympathise Apache HTTP server to a greater extent than inwards petty to a greater extent than item in addition to give yous but about thought of what yous tin facial expression inwards Java in addition to Web evolution interview which require developing venture spider web application using Java technologies e.g. Servlet, JSP, JSF, Spring, or JEE etc.
Btw, Apache is used non but inwards Java infinite but anywhere where a spider web server is required to serve HTML files or other static resources. You tin works life Apache with.NET projects or fifty-fifty PHP projects, fifty-fifty most of the cyberspace sites are built using Apache, PHP, MySQL in addition to Linux. You tin besides read Pro Apache (Expert's Voice) or Apache: The Definitive Guide to larn to a greater extent than virtually Apache fundamentals, Security, SSL, Performance in addition to mistake treatment inwards Apache.
Some to a greater extent than interview questions articles for Java spider web developers
- 10 Essential Spring Framework Interview Questions amongst Answers (see here)
- 12 Essential RESTful Web Services Questions from Interviews (read here)
- 10 Essential Hibernate Interview Questions for Java EE developers (see here)
- 10 Essential XML Interview Questions for Java Programmers (read here)
- 20 Essential Java Design Pattern Questions asked on Interviews (see here)
- 10 pop Struts Interview Questions for Java developers (list)
- 10 Frequently asked Servlet Interview Questions amongst Answers (see here)
- 20 jQuery Interview Questions for Java Web Developers (list)
- Top 10 JSP Questions from J2EE Interviews (read here)
- Top 10 EJB Interview Questions in addition to Answers (see here)
- Top 10 JMS in addition to MQ Series Interview Questions in addition to Answers (list)
- 10 Essential JDBC Interview Questions for Java Programmers (questions)
- Top 10 XSLT Interview Questions amongst Answers (read more)
References
http://httpd.apache.org/docs/
http://httpd.apache.org/docs-project/
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