This post covers the most often asked how-to questions about Linux printing support. What tool provides Linux printing support? CUPS, the Common Unix Printing System What kinds of printers can be attached to a Linux system? Linux support printers which are connected using any of the following: Locally Attached Printer (LPT) through a local parallel printer port. Locally Attached Printer (USB) through a local USB port. Remotely Attached Printer (IPP) using the Internet Printing … [Read more...] about Linux Interview Questions – Linux Printing (CUPS)
Interview Questions
Oracle Interview Questions – Flash Recovery Area
Naming convention: Oracle 10g: FLASH Recovery Area Oracle 11g: FAST Recovery Area 1. What is a Flash Recovery Area ? The flash recovery area is an Oracle-managed directory, file system, or Automatic Storage Management disk group that provides a centralized disk location for backup and recovery files. All the files you need to completely recover a database from a media failure are part of the Flash Recovery Area. Oracle creates archived logs and flashback logs in the flash recovery area. … [Read more...] about Oracle Interview Questions – Flash Recovery Area
Oracle RMAN interview questions
General RMAN Questions What is RMAN and How to configure it? RMAN is an Oracle Database client that performs backup and recovery tasks on your databases and automates the administration of your backup strategies. It greatly simplifies the dba jobs by managing the production database's backing up, restoring, and recovering database files. This tool integrates with sessions running on an Oracle database to perform a range of backup and recovery activities, including maintaining an RMAN … [Read more...] about Oracle RMAN interview questions
Oracle Interview Questions : Recovery catalog for RMAN backup
Why use a recovery catalog? The RMAN catalog has several benefits. It makes restore if all the target database is lost, including the controlfile. As that controlfile contains all backup information, the catalog would then be used to identify a controlfile backup. If an RMAN catalog is not used, the controlfile autobackup should be configured to ON. There are some features which are only supported using an RMAN catalog. Primarily the ability to store scripts which would be available to all … [Read more...] about Oracle Interview Questions : Recovery catalog for RMAN backup
Oracle Interview Questions : Grid Infrastructure Single Client Access Name (SCAN)
SCAN Concepts Single client access name (SCAN) is the virtual hostname to provide for all clients connecting to the cluster (as opposed to the VIP hostnames in 10g and 11gR1). SCAN is a domain name registered to at least one and up to three IP addresses, either in the domain name service (DNS) or the Grid Naming Service (GNS). By default, the name used as the SCAN is also the name of the cluster and must be globally unique throughout your enterprise. The default value for the SCAN is based … [Read more...] about Oracle Interview Questions : Grid Infrastructure Single Client Access Name (SCAN)
MySQL Interview Questions : Multi-source Replication in MySQL Server
Can I upgrade my slave from 5.6 to 5.7 and connect more masters to it? When upgrading so that the master version is lower/earlier than the slave version there is always a large risk it will not work. This is because newer versions may have made incompatible changes that means the older version will not be able to process or understand that change in the newer version. However, there is always a chance that it will work, but it is always recommended that if you want to go this way, attempt it … [Read more...] about MySQL Interview Questions : Multi-source Replication in MySQL Server