What is preventing the router from pinging remote devices?

Set1

Your ISP has given you the address 223.5.14.6/29 to assign to your router’s interface. They have also given you the default gateway address of 223.5.14.7. After you have configured the address, the router is unable to ping any remote devices. What is preventing the router from pinging remote devices?


A. The default gateway is not an address on this subnet.
B. The default gateway is the broadcast address for this subnet.
C. The IP address is the broadcast address for this subnet.
D. The IP address is an invalid class D multicast address.

Answer : B

Explanation:

IP Address : 223.5.14.6 /29
Subnet Mask : 255.255.255.248

Subtract 248 from 256.
256 – 248 = 8.

Network Address : 223.5.14.0
Broadcast Address : 223.5.14.7

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