Which statements reflect the operation of OSPF neighbor states? (Choose two)
A. The master and slave routers exchange one or more database description package, or DBD, packets, putting the routers in the full state
B. When routers start sending link-state requests, or LSRs, they are in the loading state
C. In the exchange state, the designated router, or DR, and backup designated router, or BDR, establish adjacencies with each router in the network
D. When all link-state requests, or LSRs, have been satisfied for a given router, the adjacent routers are considered synchronized and in the full state
https://www.learncisco.net/courses/icnd-2/an-overview-of-ospf/link-state-databases.html
What commands would you need to configure to enable DHCP Snooping so that PC4 couldn’t become a rogue DHCP server?
A. Configure the following on SW 2: ip dhcp snooping, ip dhcp snooping vlan 10, int gi0/12, ip dhcp snooping trust
B. Configure the following on SW 1: ip dhcp snooping, ip dhcp snooping vlan 10, int gi0/24, ip dhcp snooping trust
C. Configure the following on SW 2: ip dhcp snooping, ip dhcp snooping vlan 10, int gi0/24, ip dhcp snooping trust
D. Configure the following on SW 2: ip dhcp snooping, ip dhcp snooping vlan 20, int gi0/24, ip dhcp snooping trust
E. Configure the following on SW 2: ip dhcp snooping, ip dhcp snooping vlan 20, int gi0/12, ip dhcp snooping trust
F. Configure the following on SW 1: ip dhcp snooping, ip dhcp snooping vlan 20, int gi0/24, ip dhcp snooping trust
You have an IP address of 192.168.1.2/25. What are the subnet ID, broadcast address, and usable range of this subnet?
A. The subnet ID is 192.168.1.0, the broadcast is 192.168.1.64, and the usable range is 192.168.1.1 to 192.168.1.63
B. The subnet ID is 192.168.1.0, the broadcast is 192.168.2.255, and the usable range is 192.168.1.1 to 192.168.2.254
C. The subnet ID is 192.168.1.0, the broadcast is 192.168.1.255, and the usable range is 192.168.1.1 to 192.168.1.254
D. The subnet ID is 192.168.1.0, the broadcast is 192.168.1.127, and the usable range is 192.168.1.1 to 192.168.1.126
E. The subnet ID is 192.168.0.0, the broadcast is 192.168.2.32, and the usable range is 192.168.0.1 to 192.168.2.31
https://www.learncisco.net/courses/icnd-1/lan-connections/network-addressing-scheme.html
You have an address of 172.16.142.10/21. What are the network ID, directed broadcast, first host, and the last host?
A. The network ID is 172.16.140.0, the directed broadcast is 172.16.148.255, the first host is 172.16.140.1, and the last host is 172.16.148.254
B. The network ID is 172.16.96.0, the directed broadcast is 172.16.168.255, the first host is 172.16.96.1, and the last host is 172.16.168.254
C. The network ID is 172.16.128.0, the directed broadcast is 172.16.163.255, the first host is 172.16.128.1, and the last host is 172.16.163.254
D. The network ID is 172.16.136.0, the directed broadcast is 172.16.143.255, the first host is 172.16.136.1, and the last host is 172.16.143.254
https://www.learncisco.net/courses/icnd-1/lan-connections/network-addressing-scheme.html