вопрос CCNA, подскажите плз, дайте ссылочки

Scumster

правильно C или D?
TestKing640-801_v81 page 471 q15
приведена схема сети:
  PC_Testking--(E0-S0)--(S1-E0)--HTTP_Server
You
work as a network engineer at TestKing.com. The topology of the TestKing.com
network is displayed in the exhibit. Host TestKing1 has established a connection with the
HTTP server attached to interface E0 of the TestKingB router.
Which of the following statements describe the information contained in protocol data units
sent from host TestKing1 to this server? (Select three)
A. The destination port number in a segment header will have a value of 80.
B. The destination port number in a segment header will have a unique value greater than or equal
to 1023.
C. The destination address of a frame will be the MAC address of the HTTP server interface.
D. The destination address of a frame will be the MAC address of the E0 interface of the
TestKingA router.
E. The destination IP address of a packet will be the IP address of the the E0 interface of the
TestKingA router.
F. The destination address of a packet will be the IP address of the HTTPServer
Answer: A, C, F
Explanation:
HTTP uses TCP port 80, making choice A correct. The source port will be chosen randomly, but
not the destination TCP port. The destination and MAC IP address will be left unchanged since
communication is to the end device. This is true for any TCP/IP communication: The destination
MAC and IP do not change, although the source IP and MAC address may.
 

lopidus

Правильный ответ:
D. The destination address of a frame will be the MAC address of the E0 interface of the
TestKingA router.
Клиент PC_Testking и сервер HTTP_Server находятся разных сегментах Ethernet.
Поэтому клиент отправляет пакет IP-адресом получателя - адресом HTTP-server, но на MAC интерфейса E0 роутера А.
PC_Testking и роутер А - в одном сегменте ethernet.

Scumster

спасибо!
и я так тоже считаю, просто один чел попутал...