Much industry attention surrounds security attacks from outside the walls of an organization and at the upper Open Systems Interconnection (OSI) layers. Network security often
Tag: IP Technologies
Cisco Switching Notes
Before you start reading these notes, you should have completed the following course or have equivalent networking experience: Cisco Exam 640-802 OR Cisco Exam 640-822
Cisco VLANs and Trunks Explained
Table of Content: VLANs Overview Deploying VLANs Local VLANs End to End VLAN VLAN membership Static VLAN membership Dynamic VLAN membership Types of Switch ports
Preparing a Cisco Switch for IP Telephony
Content: Cisco IP Phone boot process Implementing IP Telephony Physical layer requirements Bandwidth and traffic requirements Security and Redundancy requirement Power Requirements for IP Phone
Spanning Tree Protocol Explained
Content: STP (Spanning Tree Protocol) STP Overview Traditional STP (802.1d) operation BPDU (Bridged Protocol Data Unit) flooding Electing Root Bridge Elect Root Port (RP) Elect
46 Networking Interview Questions and Answers
Networking is a very vast field. A person having clear concepts, knowledge of basic terminologies as well as practical knowledge in the field can be
25 BGP Interview Questions and Answers
BGP (Border Gateway Protocol) is a standardized exterior gateway protocol designed to exchange routing and reachability information among autonomous systems (AS) on the Internet. The
Networking Services: NAT, DHCP, DNS, and Multicasting
Network Address Translation (NAT): NAT is a router function where IP addresses (and possibly port numbers) of IP datagrams are replaced at the boundary of