Difference Between

Semaphore vs Mutex Semaphore is a data structure that is used to make sure that multiple processes do not access a common resource or a critical section at the same time, in parallel programming environments. Semaphores are used to avoid dead locks and race conditions. Mutex (Mutual Exclusion Object) is also... 

Database vs Spreadsheet Database and Spreadsheet are two ways that could be used to manage, store, retrieve and manipulate data. A spreadsheet is an application that allows user to work on an electronic spreadsheet similar to an accounting worksheet, whereas, a database is intended for easily organizing, storing... 

Digital Signature vs Digital Certificate A digital signature is a mechanism that is used to verify that a particular digital document or a message is authentic. It provides the receiver a guarantee that the message was actually generated by the sender and it was not modified by a third party. Digital signatures... 

DoS vs DDoS DoS (Denial-of-Service) attack is a type of attack carried out by a single host that denies a certain service to its intended users, by either crashing or flooding the computer that is offering the service. DDoS (Distributed Denial-of-Service) attack is a DoS attack simultaneously carried out by multiple... 

Insert vs Update vs Alter Insert, Update and Alter are three SQL (Structured Query Language) commands used for modifying databases. Insert statement is used for inserting a new row to an existing table. Update statement is used to update existing records in a database. Insert and Update are Data Manipulation Language... 

Authentication vs Authorisation The process of securely identifying its users by a system is called authentication. Authentication tries to identify the identity of the user and whether the user is actually the person he/she is representing to be. Determining the level of access (what resources are made accessible... 

CISSP vs CISM CISSP and CISM are two of the most widely sought after certification programs for information security. Both CISSP and CISM intend to provide a common body of knowledge for information security professionals and managers around the world. Both CISSP and CISM are approved certifications for the Information... 

Static IP vs Dynamic IP An IP (Internet Protocol) address is a label made up of numbers, which is assigned to devices that are connected to a network. It is used to identify and communicate with a device on a network. Static IP is a permanent IP address assigned to a computer by an internet service provider (ISP).... 

Subnetting vs Supernetting Subnetting is the process of dividing an IP network in to sub divisions called subnets. Computers belonging to a sub network have a common group of most-significant bits in their IP addresses. So, this would break the IP address in to two parts (logically), as the network prefix and... 

Address Bus vs Data Bus According to computer architecture, a bus is defined as a system that transfers data between hardware components of a computer or between two separate computers. Initially, buses were made up using electrical wires, but now the term bus is used more broadly to identify any physical subsystem... 

Paging vs Swapping Paging is a memory management method used by operating systems. Paging allows the main memory to use data that is residing on a secondary storage device. These data are stored in the secondary storage device as blocks of equal size called pages. Paging allows the operating system to use data... 

Oracle 10g vs 11g Oracle databases are object-relational database management systems developed and distributed by Oracle Corporation. The latest version of Oracle databases is Oracle 11g, first released in September 2008; it succeeded Oracle 10g. These versions are a part of the continued evolution of the Oracle... 

Antivirus vs Firewall Both Antivirus software and Firewalls are mechanisms that are used as security measures in computer networks. A device or set of devices intended to allow permission to accept/deny transmissions based on a certain set of rules is called a firewall. Firewall is used to protect networks from... 

AES vs TKIP When communicating over an untrusted medium such as wireless networks, it is very important to protect information. Cryptography (encryption) plays an important role in this. Most modern Wi-Fi devices can use either WPA or WPA2 wireless security protocols. User can use TKIP (Temporal Key Integrity... 

Network Security vs Information Security Network security involves methods or practices used to protect a computer network from unauthorized accesses, misuses or modifications. Networks owned by different organizations require different levels of security. For example, level of security required by a home network... 

Firewall vs Router Both Firewalls and Routers are devices that are connected to networks and pass through network traffic depending on some set of rules. A device or set of devices intended to allow permission to accept/deny transmissions based on a certain set of rules is called a firewall. Firewall is used...