Quiz-Session5

Which information is used by routers to forward a data packet toward its destination?

• • source IP address

• • destination IP address

• • source data-link address

• • destination data-link address

Which IPv4 address can a host use to ping the loopback interface?

• • 126.0.0.1

• • 127.0.0.0

• • 126.0.0.0

• • 127.0.0.1

A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem?

• • The cable is not connected properly to the NIC.

• The computer has an invalid IP address.

• • The computer has an incorrect subnet mask.

• • The computer has an invalid default gateway address.

Why is NAT not needed in IPv6?​

• • Because IPv6 has integrated security, there is no need to hide the IPv6 addresses of internal networks.​

• • Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.​

• • The problems that are induced by NAT applications are solved because the IPv6 header improves packet handling by intermediate routers.​

• • The end-to-end connectivity problems that are caused by NAT are solved because the number of routes increases with the number of nodes that are connected to the Internet.

What information does the loopback test provide?

• • The TCP/IP stack on the device is working correctly.

• • The device has end-to-end connectivity.

• • DHCP is working correctly.

• • The Ethernet cable is working correctly.

Which two functions are primary functions of a router? (Choose two.)

• • packet forwarding

• • microsegmentation

• • domain name resolution

• • path selection

• • flow control

Convert Binary [10111001] to decimal ?

• 225

• 185

• 255

• 192

Convert Decimal [224] to Binary ?

• 11010000

• 11101000

• 11100000

• 01101000

Convert Hexa [DF] to Binary ?

• 11101111

• 11011111

• 10111111

• 01110110

What is the prefix length notation for the subnet mask 255.255.255.224?

• • /25

• • /26

• • /27

• • /28