Which three IP addresses are valid multicast addresses?()A. 169.254.23.59B. 223.254.255.254C. 225.1.1.1D. 227.43.34.2E. 238.3.3.3F. 249.1.2.3

第1题：

Which three of these can be a forwarding equivalence class？ （）

• A、IPsec tunnel
• B、routing equivalence paths
• C、traffic engineering tunnel
• D、bridge or switch instance
• E、groups of IP addresses

第2题：

Which three IP multicast address related statements are true？ （Choose three.） （） 

• A、Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted  with Time to Live （TTL） greater than 1.
• B、Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers.
• C、Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link-local addresses used by PIMv2 and  IGMPv3.
• D、Because they would map to overlapping IP multicast MAC addresses， multicast addresses 224.0.1.1  and 238.1.1.1 could not be used together.
• E、Multicast address 224.0.1.1 has been reserved for the Network Time Protocol （NTP） by the IANA
• F、The administratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in  purpose to RFC 1918 private unicast addresses.

第3题：

In a configuration with redundant supervisors， how many IP addresses are required to configure full remote access via management 0？（）     

• A、 two IP addresses， one for each supervisor
• B、 three IP addresses， one virtual IP and one physical IP for each supervisor
• C、 one IP address that is shared among supervisors
• D、 none—management 0 will use the IP address from the first SVI that is created

第4题：

Which of the following describe private IP addresses?（）

• A、addresses chosen by a company to communicate with the Internet
• B、addresses that cannot be routed through the public Internet
• C、addresses that can be routed through the public Internet
• D、a scheme to conserve public addresses
• E、addresses licensed to enterprises or ISPs by an Internet registry organization

第5题：

Which two multicast IP addresses can be represented by the multicast MAC addre ss 0100.5e0A.0A07?（）

• A、228.10.10.7
• B、229.11.10.7
• C、229.138.10.7
• D、229.138.10.8
• E、228.10.10.8
• F、228.10.138.7

第6题：

A technician is setting up a network and wants to automatically assign IP addresses. Which of the following will need to be configured to automatically assign IP addresses？（）

• A、WINS
• B、DNS
• C、DHCP
• D、NTP

第7题：

Which of the following class addresses is reserved for multicast？（）

• A、 Class A
• B、 Class B
• C、 Class C
• D、 Class D

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第13题：

Select two valid administratively scoped multicast addresses in networks running Interior Gatewayprotocols like EIGRP and OSPF？（）

• A、239.0.0.1
• B、239.255.255.255
• C、224.0.0.10
• D、224.0.0.5

第14题：

Which three IP addresses are valid multicast addresses?（）

• A、169.254.23.59
• B、223.254.255.254
• C、225.1.1.1
• D、227.43.34.2
• E、238.3.3.3
• F、249.1.2.3

第15题：

The network technician is planning to use the 255.255.255.224 subent mask on the network.which three valid IP addresses can the technician use for the hosts？（）

• A、172.22.243.127
• B、172.22.243.191
• C、172.22.243.190
• D、10.16.33.98
• E、10.17.64.34
• F、192.168.1.160

第16题：

Which three IP multicast related statements are true？ （Choose three.）  （）

• A、 Multicast addresses 224.0.1.0 through 238.255.255.255 are called globally scoped addresses. They are used to multicast data between organizations and across the Internet
• B、 The multicast address 224.0.0.1 is a globally scoped address that has been reserved for the Network  Time Protocol （NTP） by the IANA
• C、 Multicast addresses 239.0.0.0 through 239.255.255.255 are called limited scope addresses. They are  constrained to a local group or organization
• D、 Multicast addresses 224.0.0.5 and 224.0.0.6 are limited scoped addresses that have been reserved for  OSPF
• E、 Multicast addresses 224.0.0.0 through 224.0.0.255 are used for network protocols on local LAN segments. Because they are always transmitted with a Time to Live （TTL） of 1， they are never forwarded  by a router

第17题：

Which two multicast IP addresses can be represented by the multicast MAC address 0100.5e0A.0A07?（）

• A、228.10.10.7
• B、229.11.10.7
• C、229.138.10.7
• D、229.138.10.8
• E、228.10.10.8
• F、228.10.138.7

第18题：

Which of the following protocols is responsible for the resolution of IP addresses to MAC addresses？（）

• A、 DHCP
• B、 ARP
• C、 DNS
• D、 RARP

第19题：

In the output of show isis adjacency， what are three valid items that can be displayed under the attributes header？（）

• A、IS type
• B、attached
• C、overload
• D、area addresses

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