單項選擇題What does the term computer language refer to?（）

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


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2.單項選擇題Which protocol below uses TCP port 443?（）

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

3.多項選擇題Regarding DHCP (dynamic host configuration protocol), which two of the following choices below are true?（）

A. The DHCP Discover message uses FF-FF-FF-FF-FF as the Layer 2 destination address.
B. The DHCP Discover message uses UDP as the transport layer protocol.
C. The DHCP Discover message uses a special Layer 2 multicast address as the destination address.
D. The DHCP Discover message uses TCP as the transport layer protocol.
E. The DHCP Discover message does not use a Layer 2 destination address.
F. The DHCP Discover message does not require a transport layer protocol.

5.單項選擇題The corporate head office of TestKing has a teleconferencing system that uses VOIP (voice over IP) technology. This system uses UDP as the transport for the data transmissions. If these UDP datagrams arrive at their destination out of sequence,what will happen?（）

A. UDP will send an ICMP Information Request to the source host.
B. UDP will pass the information in the datagrams up to the next OSI layer in the order that they arrive.
C. UDP will drop the datagrams.
D. UDP will use the sequence numbers in the datagram headers to reassemble the data in the correct order.
E. UDP will not acknowledge the datagrams and wait for a retransmission of the datagrams.

6.多項選擇題Although TCP segments differ from UDP segments, they both contain some common fields. What two segments do they share in common?（）

A. source address
B. options
C. sequence number
D. sources
E. destination port
F. checksum

7.多項選擇題Which of the following protocols utilize TCP?（）

A. NTP
B. NNTP
C. SMTP
D. SNMP
E. HTTPS
F. TFTP

9.多項選擇題Which of the following protocols utilize UDP as the layer 4 transport mechanism?（）

A.TACACS
B.Telnet
C.SMTP
D.SNMP
E.HTTP
F.TFTP

10.多項選擇題Which of the protocols below use TCP at the transport layer?（）

A.TFTP
B.SMTP
C.SNMP
D.FTP
E.HTTP
F.HTTPS

最新試題

Which of the following contribute to congestion on an Ethernet network?（）

題型：多項選擇題

Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts?（）

題型：多項選擇題

A technician at TestKing needs to update the network documentation. One of the tasks includes documenting the name of the IOS image file of each router in the network.Which commands could be used to find this information?（）

題型：單項選擇題

What does a configuration Register Setting of 0x2105 indicate to the Router? （）

題型：單項選擇題

New switches have been purchased for a network upgrade. The objective for the network design emphasizes efficient, error-free transport instead of fast transport.Which switching mode should be configured on the new switches to provide error-free transport to the network? （）

題型：單項選擇題

What is a global command?（）

題型：單項選擇題

What should the configuration register value be after successfully completing the password recover procedure and returning the router to normal operation? （）

題型：單項選擇題

What is the purpose of pressing the Ctrl+Break keys during the router password recover procedure?（）

題型：單項選擇題

Five minutes after issuing the show running-config command, a technician enters the command again and notices that several access list statements have been altered. Because of this, the technician believes that the router is being configured by an unknown person through Telnet. Before changing the router passwords, the technician would like to discover if anyone is connected to the router by Telnet and stop them from making further changes.Which commands will accomplish these options?（）

題型：多項選擇題

Which of the following statements regarding routed and routing protocols are true?（）

題型：多項選擇題