Category: CCNA

Cisco Certified Network Associate certification resources

erial communication fundamentals and benefits
CCNA March 24, 2020

Serial Communication – Complete Guide

Serial communication is the famous and broadly used technique to transfer data between processing equipment and peripherals. Serial communication is used to transfer data across the WANs. The sending router encapsulates the data using a communication protocol. The encapsulated data is sent on a physical medium to the WAN, and the receiving router de-encapsulates the...
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CCNA March 20, 2020

Parallel port

Parallel ports usually used for connecting printers, computers, and other devices that required high bandwidth. The port is also used for interconnection between interior components of the devices. Parallel ports can be transmitted simultaneously over multiple wires. Theoretically parallel port is eight-time faster than a serial port. The serial port sends one bit while at...
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Serial Port
CCNA March 17, 2020

Serial Port

A serial port allows a PC or network devices to transmit or receive data one bit at a time. A serial interface is the oldest types of an interface that was also used to connect printers and external modems to a PC at that time. Modern serial ports are used in scientific instruments such as...
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CCNA March 13, 2020

VPN Technology

VPN is the abbreviation for a virtual private network. VPN technology creates a safe and encrypted connection over an unsecured network, such as the Internet. It extends a private network using a public network, such as the Internet. A virtual private network uses virtual connections known as VPN tunnels instead of a dedicated Layer 2...
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CCNA March 10, 2020

Cellular Network

Cellular networks are the type of wireless WAN technologies. Cellular networks provide services to connect users and remote locations where no other WAN access technologies are available. Millions of users use their smartphones and tablets to email, surf the web, download apps, and watch videos. We can easily connect computers, laptops including routers with the...
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CCNA March 9, 2020

Wireless internet

Wireless internet uses wireless connectivity via radio waves instead of wires on a personnel computer, laptop, smartphone etc. Initial wireless technologies lack the high speed of broadband internet connection e.g cable and DSL, but the latest wireless technologies cover the gap. Wireless Internet service providers (WISP) typically provide wireless internet services to home users and...
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Cable Internet
CCNA March 7, 2020

Cable Internet

Network and Internet Access through Cable TV is a type of broadband internet access that uses the resources of the television cable system. It provides network edge connectivity from the internet service provider (ISP) to an end-user of the internet services in the same way as DSL and fibre to the home (FTTH) provides.  Cable...
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VSAT
CCNA February 27, 2020

What is VSAT?

VSAT is the abbreviation of Very small aperture terminal. It is important WAN technology for both home users and organizations; they needed connectivity in remote areas where there is no possibility of fiber optic, copper cable and microwave.  It is the solution that creates a private WAN using satellite communications. A VSAT contains is a...
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MPLS
CCNA February 26, 2020

MPLS

MPLS is the abbreviation of Multiprotocol Label Switching. It is a WAN protocol that sends data from one router to another router, based on short path labels rather than IP network addresses. It was created from 1994 to 1999 as an alternative to Internet Protocol (IP) routing. It was the more effective alternative to multilayer switching...
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CCNA February 26, 2020

Ethernet WAN

Ethernet was initially considered not suitable as a WAN access technology because of the maximum cable length supported was only up to a kilometre. However, newer Ethernet standards with fiber optic have made Ethernet an important WAN option. For example, the IEEE 1000BASE-ZX standard supports up to 70 km of distance. Ethernet WAN provides high-bandwidth...
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