Key Concepts in Network Routing and Load Balancing
Non-Routable Addresses
What are the addresses that are not routable? Broadcast addresses.
Router Behavior with Unroutable Packets
How does a router behave if it is unable to route an IP data packet? It drops the packet and sends a Destination Unreachable ICMP message.
Conditions for Static Route Entry
What are the conditions to be satisfied before a static route is written into a routing table?
- IP routing must be enabled.
- The next-hop interface must be reachable.
- The exit interface must have an IP address
JavaScript Calculators: Simple & Compound Interest, Postfix Evaluation
Simple and Compound Interest Calculator
Develop a simple and compound interest calculator using HTML, CSS, and JavaScript.
| Enter principal amount: | |
| Enter time period: | |
| Enter rate of interest (%): |
Simple and Compound Interest Calculator (jQuery)
Develop a simple and compound interest calculator using HTML, CSS, and jQuery.
Simple-Compound-Interest-Calculator-JQ.html
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script>
$(document).ready(function(Digital Signals, Communication Media, and Computer Networks
Digital Signals
Analog Vs. Digital: The world primarily uses analog signals, while machines use digital signals. We can convert analog signals into digital ones through sampling and quantification. Bit depth determines how much information can be stored for every sample. The more bits used for each sample, the more faithful the digital signal will be to the original.
Communication Media
Between 1835 and 1900, the first 60 years of modern telecommunications, two main types of communication media emerged:
Read MoreNetwork Redundancy: STP, EtherChannel, and Inter-VLAN Routing
Network Redundancy Technologies
MAC Database Instability
- If there is more than one path for a frame to be forwarded, an endless loop can result.
Broadcast Storms
- Switches forward broadcast frames to all ports except the port the broadcast frame first entered.
- If a Layer 2 loop is formed, broadcast frames are forwarded endlessly, creating a broadcast storm.
Issues with Layer 1 Redundancy: Duplicate Unicast Frames
- Most upper-layer protocols are not designed to recognize or cope with duplicate transmissions.
Social Networks, Web 2.0, Telecoms, and Mobile Technology
Social Networks and Web 2.0
A social network is a community of people related by some kind of interest, affinity, or anything else they have in common.
Web 2.0 is a set of sites where the user is not a mere recipient of content but participates in its development and diffusion.
Telecommunications Fundamentals
Telecoms: Media broadcasting, transmitting, and receiving messages using electrical or electromagnetic signals.
Components of a telecommunication system: Transmitter, transmission channel, and receiver.
Read MoreEthernet Network Fundamentals and Operations
Refer to the Exhibit: Full-Duplex Operation
Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which of the following statements accurately reflects the operation of this link?
There will be no collisions in this type of link.
Random Delay in Ethernet Collisions
Why does a host on an Ethernet segment that experiences a collision use a random delay before attempting to transmit a frame?
A random delay helps prevent the stations from experiencing