思科认证640-802模拟试卷15 - 众享搜题网

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How many broadcast domains are shown in the graphic assuming only the default vlan is configured on the switches? [*] one six twelve two

Which term describes a spanning-tree network that has all switch ports in either the blocking or forwarding state? redundant spanned provisioned converged

Three switches are connected to one anther via trunk ports．Assuming the default switch configuration,which switch is elected as the root bridge for the spanning-tree instance of vlan 1? the switch with the lowest MAC address the switch with the higest MAC address the switch witch the higest IP address the switch with the lowest IP address

What is the alternative notation for the IPV6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72? B514:82C3:0029::EC7A:0000:EC72 B514:82C3:0029:EC7A:EC72 B514:82C3::0029:EC7A:0:EC72 B514:82C3::0029:EC7A:EC72

How many bits are contained in each field of an IPv6 address? 24 4 8 16

Which option is a valid IPv6 address? 2001:0000:130F::099a::12a 2002:7654:A1AD:61:81AF:CCC1 FEC0:ABCD:WXYZ:0067::2A4 2004:1:25A4:886F::1

Which IPv6 address is the all-router multicast group? FF02::1 FF02::2 FF02::3 FF02::4

which address range efficiently summarizes the routing table of the addresses for router main? [*] 172．16．0．0/18 172．16．0．0/16 172．16．0．0/20 172．16．0．0/21

Refer to the exhibit．Which is the most efficient summarization that R1 can use to advertise its networks to R2? [*] 172．1．4．0/22 172．1．0．0/21 172．1．0．0/22 172．1．4．0/25 172．1．4．128/25 172．1．5．0/24 172．1．6．0/24 172．1．7．0/24 172．1．4．0/24 172．1．5．0/24 172．1．6．0/24 172．1．7．0/24

How is an EUI-64 format interface ID created from a 48-bit MAC address? by appending 0xFF to the MAC address． by prefixing the MAC address with 0xFFEE． by prefixing the MAC address with 0xFF and appending 0xFF to it． by inserting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address by prefixing the MAC address with 0xF and inserting 0xF after each of its first three bytes．

Refer to the exhibit． In this VLSM addressing scheme, what summary address would be sent from router A? 172．16．0．0 /16 172．16．0．0 /20 172．16．0．0 /24 172．32．0．0 /16 172．32．0．0 /17

Which subnet mask would be appropriate for a network address range to be subnetted for up to eight LANs, with each LAN containing 5 to 26 hosts? 0．0．0．240 255．255．255．252 255．255．255．0 255．255．255．224 255．255．255．240

An administrator must assign static IP addresses to the servers in a network．For network 192．168．20．24/29, the router is assigned the first usable host address while the sales server is given the last usable host address． Which of the following should be entered into the IP propertied box for the sales server? IP address:192．168．20．14 Subnet Mask:255．255．255．248 Default Gateway:192．168．20．9 IP address:192．168．20．254 Subnet Mask:255．255．255．0 Default Gateway:192．168．20．1 IP address:192．168．20．30 Subnet Mask:255．255．255．248 Default Gateway:192．168．20．25 IP address:192．168．20．30 Subnet Mask:255．255．255．240 Default Gateway:192．168．20．17 IP address:192．168．20．30 Subnet Mask:255．255．255．240 Default Gateway:192．168．20．25

Refer to the exhibit． At the end of an RSTP election process, which access layer switch port will assume the discarding role? [*] Switch3, port fa0/1 Switch3, port fa0/12 Switch4, port fa0/11 Switch4, port fa0/2 Switch3, port Gi0/1

Which three are characteristics of an IPV6 anycast address? any-to-many communication model delivery of packets to the group interface that is closest to the sending device one-to-many communication model the same address for multiple devices in the group one-to-nearest communication model

A national retail chain needs to design an IP addressing scheme to support a nationwide network． The company needs a minimum of 300 sub-networks and a maximum of 50 host addresses per subnet． Working with only one Class B address, which of the following subnet masks will support an appropriate addressing scheme? 255．255．255．0 255．255．255．128 255．255．252．0 255．255．255．224 255．255．255．192

Refer to the exhibit． A network administrator is adding two new hosts to SwitchA． Which three values could be used for the configuration of these hosts? [*] host A IP address: 192．168．1．79 host A IP address: 192．168．1．64 host A default gateway: 192．168．1．78 host B IP address: 192．168．1．128 host B IP address: 192．168．1．190

Which three approaches can be used while migrating from an IPV4 addressing scheme to an IPV6 scheme． statically map IPV4 address to IPV6 addresses configuration IPv4 tunnels between IPV6 islands use DHCPv6 to map IPV4 addresses to IPV6 addresses use proxying and translation to translate IPV6 packets into IPV4 packets enable dual-stack routing

the network administrator has been asked to give reasons for moving from ipv4 to ipv6． what are two valid reasons for adopting ipv6 over ipv4? telnet access does not require a password nat no broadcast chanage of destination address in the ipv6 header autoconfiguration

Which two statements describe characteristics of IPv6 unicast addressing? Global addresses start with 2000::/3． Link-local addresses start with FE00:/12． Link-local addresses start with FF00::/10． There is only one loopback address and it is ::1． If a global address is assigned to an interface, then that is the only allowable address for the interface．

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