Q$1.$ A compatible address is used when a computer using IPv$6$ wants to send a packet to a computer still using IPv$4.$ A mapped address is used when a computer using IPv$6$ wants to send a packet to another computer using IPv$6.$

A$.$ True

B$.$ False

Q$2.$ Packet modification can be defeated using a strong message integrity scheme.

A$.$ True

B$.$ False

Q$3.$ We need to encapsulate IPv$6$ packets in the IPv$4$ packets in $\_\_\_\_\_\_\_\_\_\_$ strategy.

A$.$ Dual Stack

B$.$ Tunneling

C$.$ Header Translation

Q$4.$ If you are assigned an IPv$6$ address by your ISP $($Internet Service Provider$)$ for your personal computer at home, what should be the first $($leftmost$)$ three bits of this address?

A$.111$

B$.011$

C$.001$

D$.000$

Q$5.$ A compatible address is an address of $96$ bits of $0$s followed by $32$ bits of an IPv$4$ address. A mapped address is an address of $80$ bits of $0$s followed by $16$ bits of $1$s and followed by $32$ bits of an IPv$4$ address.

A$.$ True

B$.$ False

Q$6.$ Using the CIDR $($classless interdomain routing$)$ notation, show the IPv$6$ address compatible to the IPv$4$ address $129\mathrm{.}6\mathrm{.}12\mathrm{.}34.$

A$.$ ::FFFF:$129\mathrm{.}6\mathrm{.}12\mathrm{.}34/128$

B$.$ ::$129\mathrm{.}6\mathrm{.}12\mathrm{.}34/128$

Q$7.$ Packet sniffing can be defeated using a strong entity authentication scheme.

A$.$ True

B$.$ False

Q$8.$ IP spoofing can be defeated if the datagram is encrypted at the source and decrypted at the destination using a secure cipher.

A$.$ True

B$.$ False