Useful tips for everyday
How do you calculate IP range from subnet mask? 255.248 or /29. Step 1: Convert to Binary. Step 2: Calculate the Subnet Address. To calculate…
How do you do a packet capture on a Cisco router? Capturing Packets with Cisco IOS Step 1 – Define a Capture Filter. Step 2…
How do I SSH into my Dell switch? Instructions Connect to the switch via CLI. To enable SSH, enter the following commands: console> enable. console#…
How many bits must be left for host addresses? Because all 0s and 1s are reserved, at least 2 bits must be reserved for the…
How do I know if Cisco QoS is enabled? Verifying QoS Configuration on a Cisco Catalyst 3750 Series Switch enable. show running-config class-map. show running-config…
What is ACL in Cisco switch? ACLs filter traffic as it passes through a switch and permit or deny packets crossing specified interfaces. An ACL…
What is the sequence number in TCP? At offset 32 into the TCP header is the sequence number. The sequence number is a counter used…
Can a spoofed MAC address be traced? Like Ethernet, 802.11 makes use of a device’s MAC address to uniquely identify it on the network. However,…
Is the default gateway a host? A default gateway is the node in a computer network using the internet protocol suite that serves as the…
What is HSRP tracking? Interface tracking allows you to specify another interface on the router for the HSRP process to monitor in order to alter…