單項(xiàng)選擇題Which of the following protocols use both TCP and UDP ports?()

A. FTP
B. SMTP
C. Telnet
D. DNS
E. All of the above


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1.多項(xiàng)選擇題What statements are true regarding ICMP packets?()

A. They acknowledge receipt of TCP segments.
B. They guarantee datagram delivery.
C. They can provide hosts with information about network problems.
D. They are encapsulated within IP datagrams.
E. They are encapsulated within UDP datagrams.

2.多項(xiàng)選擇題Which three address ranges are used for internal private address blocks as defined by RFC 1918?()

A. 0.0.0.0 to 255.255.255
B. 10.0.0.0 to 10.255.255.255
C. 172.16.0.0 to 172.16.255.255
D. 172.16.0.0 to 172.31.255.255
E. 127.0.0.0. to 127.255.255.255
F. 192.168.0.0 to 192.168.255.255
G. 224.0.0.0 to 239.255.255.255

3.單項(xiàng)選擇題What does the term computer language refer to?()

A. Binary
B. Decimal
C. Hexadecimal
D. Octal
E. All of the above

5.單項(xiàng)選擇題Which protocol below uses TCP port 443?()

A.HTML
B.HTTPS
C.TFTP
D.Telnet
E.SMTP

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