Harsh Chowdhary's Blog

Session 6

In this session, you will learn that:

• NetBEUI is a legacy protocol commonly found in older Windows networks.
• IPX/SPX is a proprietary, routable network protocol developed by Novell for use in versions 3 and 4 of the Novell NetWare network operating system.
• AppleTalk is a routable protocol found in older Macintosh networks.
• IP version 6, or IPv6, is a proposed Internet standard that increases the available pool of IP addresses by implementing a 128-bit

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Tags: certifications, n+, network

Categories

Internet

Session 5

In this session you will learn that:-

• NetBIOS name resolution resolves the NetBIOS names to protocol address and are used on Microsoft networks.
• The TCP/IP utilities gather information about how the systems are using and communicating over TCP/IP and also provides information when communication is not working properly.
• The TCP/IP upper-layer services helps in executing tasks such as :
• Transferring and sharing files
• Reading and sending emails
• Reading

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Session 4

In this session, you will learn that:

• The default IP address classes are Class A,B,C, D, and E.
• The IP addresses can be customized by either subnetworking an existing network or by combining a multiple small subnets into one highly subnetted network.
• The TCP/IP protocol suite defines how applications on separate nodes establish a connection and track communications.
• The IP addresses can be assigned manually by an administrator or can be assigned automatically

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Tags: certifications, comptia n+, network

Categories

Internet

Session 3

In this session, you will learn that:

• The OSI model comprises of seven layers.
• The clients access resources on a live network by:
  
  1. Network browsing
  2. Network searching
  
  
• Ethernet network is used in both large and small-sized networks to provide both backbone and end-user services.
• Token Ring technology is widely used for contention-based networking.
• FDDI networks is used in situations that require redundant, high capacity networking

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Tags: certifications, comptia n+, network

Categories

Internet

Session 2

In this session you will learn:-

The various media types:

• Copper Media
• Coaxial cable
• Twisted Pair Cable
• Fiber Optic Cable
• IEEE 1394
• Plenum and PVC Cables

The types of unbounded network media:

• Wireless Communication
• Radio Networking
• Infrared Transmission
• Microwave Transmission

The various noise control techniques are:

• Electrical Noise
• Shielding
• Differential

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Tags: certifications, comptia, n+, network

Categories

Internet

Session 1

In this session 2 you will learn:-

The primary transmission mechanisms that are implemented on the networks are:

• Unicast transmission
• Broadcast transmission
• Multicast transmission

The common media access methods are:

• Media Access Methods
• Multiplexed Media Access
• Polling
• Token-Based Media Access
• Carrier Sense Multiple Access/ Collision Detection (CSMA/CD)
• Carrier Sense Multiple Access/ Collision Avoidance

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Tags: certifications, comptia n+, networking

Categories

Internet

In this Session, you will learn:-
The common terminologies that are used in computer networking are:

• Networks
• Servers
• Clients
• Peers
• Host computers
• Terminals
• Authentication
• Encryption
• Network Directories
• Networking Standards
• Standards Organizations

Some of the Standard Organizations are:

• International Organization for Standardization (ISO)
• Institute of Electrical and Electronics Engineers (IEEE)
• American National Standards Institute (ANSI)
• Telecommunications

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Tags: comptia n+, networking

Categories

Internet

On September 29, 2011 Oracle has launched a new exam "Java SE 7 Programmer I" with paper code 1Z0-803. The exam is also known as "The Oracle Certified Associate (OCA) Java SE 7". The OCA, Java SE 7 Programmer certification is designed for individuals who possess a strong foundation in the Java Programming language. The OCA Java SE 7 certification requires successfully completing a single exam: 1Z0-803.
The entire Syllabus and details of the exam can be obtained at 1Z0-803 ...

Tags: certifications, java

Categories

Java

What do you do when you want to change the password of a Database user? The answers is "Alter User" statement. But in some cases it is important, that users can change their password interactively like changing your password in Windows or UNIX. A small procedure can be written for the purpose.

Code:

--you must connect as sysdba like connect "/ as sysdba"

CREATE OR REPLACE PROCEDURE change_pass(old_pass IN varchar2,

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Tags: oracle, pl/sql, procedure

Categories

Oracle

With the complexity in technologies the backend of any system is used widely by different profiles. A very large organization might have a central database where users login to record daily transactions. Even is large universities Teachers and Students login to databases to complete their works or assignments. Here comes the need of tracking the user information at the time they login into the database system.
Trigger is the only way to generate the log of user's login. For the most part, ...

Tags: oracle, pl/sql, trigger

Categories

Oracle