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.


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2.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.

3.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

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

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

6.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

7.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

8.單項選擇題You have just configured a static default route on router TK1. What is the purpose of a default route?()

A. It is a route to be used when the routing protocol fails.
B. It is a route configured by an ISP that sends traffic into a corporate network.
C. It is a route used when a packet is destined for a remote network that is not listed in the routing table.
D. It is a route manually configured for a specific remote network for which a routing protocol is not configured.
E. It is used to send traffic to a stub network.

9.多項選擇題Some of the TestKing routers have been configured with default routes. What are some of the advantages of using default routes?()

A. They establish routes that will never go down.
B. The keep routing tables small.
C. They require a great deal of CPU power.
D. The allow connectivity to remote networks that are not in the routing table.
E. They direct traffic from the Internet into corporate networks.

10.單項選擇題How does route poisoning work with holddown timers to prevent routing loops?()

A. Information learned from one source is not distributed back to that source.
B. Routing updates from the poisoned source are ignored until a holddown timer expires.
C. Failed routes are advertised with infinite metrics.
D. New routing updates are ignored until the network has converged.
E. A route is marked as unavailable when its time-to-live is exceeded.

最新試題

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What feature of a networks switch allows an administrative to create separate broadcast domains?()

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You are configuring a new Catalyst switch that you want to manage remotely from workstations on other network segments within your enterprise.Which of the following are required to allow remote management of the switch over IP?()

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What is a global command?()

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A Router with a BRI/T interface will be used for an ISDN Connection what other ISDN device is required to complete this connection? ()

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Which of the following describe router functions?()

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A Class C network address has been subnetted with a /27 mask.Which of the following addresses is a broadcast address for one of the resulting subnets?()

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

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Identify three valid host addresses in the 192.168.27.0 network with a subnet mask of 255.255.255.240. ()

題型:多項選擇題