How does the 'permanent' keyword impact the behavior of a static route in a routing table?
The 'permanent' keyword in the context of a static route configuration in a routing table plays a significant role in defining the behavior and persistence of the route entry. When a static route is configured with the 'permanent' keyword, it implies that the route will remain in the routing table indefinitely, even if the specified
Is it true that a computer can only have a single MAC address?
In the field of computer networking, it is a commonly held belief that a computer can only have a single MAC address. However, this statement is not accurate. To understand why, it is essential to delve into the concept of MAC addresses and their role in networking. MAC, which stands for Media Access Control, is
Are SC fiber optics connectors gradually replacing the LC connectors?
SC (Subscriber Connector) and LC (Lucent Connector) are two commonly used fiber optic connectors in computer networking. While both connectors serve the same purpose of providing a reliable and efficient connection between fiber optic cables, they have some differences in terms of design, performance, and applications. The SC connector, which was developed by NTT (Nippon
Does each network device (e.g. a network card) must have a unique MAC address?
Each network device, such as a network card, must have a unique Media Access Control (MAC) address. This requirement is essential in computer networking to ensure the proper functioning and identification of devices within a network. The MAC address serves as a unique identifier for each network interface card (NIC) or network adapter. A MAC
- Published in Cybersecurity, EITC/IS/CNF Computer Networking Fundamentals, Introduction, Introduction to networking
Is the disadvantage of the DNS CNAME records that one needs to change their values if the domain name mapping to an IP address is changed?
The DNS (Domain Name System) is a fundamental component of computer networking that translates domain names into IP addresses. It utilizes various types of records to achieve this functionality, including the CNAME (Canonical Name) record. The CNAME record allows one domain name to be mapped to another domain name. However, there are certain disadvantages associated
- Published in Cybersecurity, EITC/IS/CNF Computer Networking Fundamentals, Domain Name System, Introduction to DNS
Could A broadcast IP for the network in which a device has an IP address 10.42.37.12 /22 be 10.42.39.255
In the field of computer networking, specifically in the realm of Internet protocols and IP addressing, the question at hand is whether a broadcast IP for the network, in which a device has the IP address 10.42.37.12/22, could be 10.42.39.255. To answer this question, we need to delve into the fundamentals of IP addressing, subnetting,
- Published in Cybersecurity, EITC/IS/CNF Computer Networking Fundamentals, Internet protocols, IP addressing in depth
Are switches and hubs the same devices?
Switches and hubs are not the same devices in the field of computer networking. While both switches and hubs are used to connect devices within a network, they differ in functionality and the way they handle network traffic. Understanding the differences between switches and hubs is crucial in the field of cybersecurity as it can
- Published in Cybersecurity, EITC/IS/CNF Computer Networking Fundamentals, Switching, How switching works
What is the classification of IP addresses?
The classification of IP addresses, in the context of computer networking and Internet protocols, refers to the categorization and organization of IP addresses. IP, or Internet Protocol, is a fundamental protocol that enables communication between devices over the internet. IP addresses play a crucial role in identifying and locating devices on a network. Understanding the
- Published in Cybersecurity, EITC/IS/CNF Computer Networking Fundamentals, Internet protocols, Introduction to IP addresses
What is an IP address and a MAC address?
An IP address (Internet Protocol address) and a MAC address (Media Access Control address) are crucial components in the field of computer networking. They serve different purposes and operate at different layers of the networking stack. In this explanation, we will delve into the detailed and comprehensive understanding of both IP and MAC addresses, highlighting