Day 08 Flashcards - IPv4 Addresses (Part 2)
Command to configure a description on an interface:
R1(config-if)# […]
description description
ie.
R1(config-if)# description ## to SW1 ##
Command to configure an IP address on an interface:
R1(config-if)# […]
ip address ip-address subnet-mask
ie.
R1(config-if)# ip address 192.168.0.254 255.255.255.0
Display the configured description of each interface on a router:
R1# […]
show interfaces description
If an interface has the shutdown command applied to it, what will the ‘status’ column of show ip interface brief display?
administratively down
Interfaces on Cisco [device type] are administratively down by default.
routers
Interfaces on Cisco [device type] are NOT administratively down by default.
switches
The ‘[…]’ field of the show ip interface brief command shows the Layer 1 status of the interface.
Status
The ‘[…]’ field of the show ip interface brief command shows the Layer 2 status of the interface.
Protocol
The ‘Protocol’ field of the show ip interface brief command shows the Layer […] status of the interface.
2
The ‘Status’ field of the show ip interface brief command shows the Layer […] status of the interface.
1
What is the formula to calculate the maximum number of hosts in a network?
(2^n)-2
(n = number of host bits)
Which IPv4 address class allows a total of 16,777,214 hosts per network?
Class A
Which IPv4 address class allows a total of 254 hosts per network?
Class C
Which IPv4 address class allows a total of 65,534 hosts per network?
Class B
Which IPv4 address class contains a total of 128 networks?
Class A
