Select two valid administratively scoped multicast addresses in networks running Interior Gatewayprotocols like EIGRP and OSPF？（）A、239.0.0.1B、239.255.255.255C、224.0.0.10D、224.0.0.5

第1题：

第2题：

第3题：

During a redistribution of routes from OSPF into EIGRP, an ad ministrator notices that none of the OSPF routes are showing in EIGRP. What are two possible causes?（）

• A、incorrect distribute lists have been configured
• B、missing ip classless command
• C、CEF not enabled
• D、no default metric configured for EIGRP

第4题：

Which two of the following are valid characteristics of EIGRP?（）

• A、Has a maximum hop count of 25
• B、Can differentiate between internal and external routes
• C、Uses a 32-bit metric
• D、Can maintain only one routing table
• E、Need all networks to use the same subnet mask
• F、Supports only one routed protocol

第5题：

Open Shortes t Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF). Which two statements best describe the OSPF link - state routing pro tocol?（）

• A、OSPF sends updates every 10 seconds
• B、OSPF sends triggered updates when a network change occurs
• C、When a link state is changed, the router that detected the change creates a link - state advertisement (LSA) and propagates it  to all OSPF devices using the 224.0.0.6 multicast address
• D、OSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization

第6题：

Which two statements are tru e about the rendezvous point (RP) in a multicast network?（）

• A、The multicast sources must register with the RP to form the multicast distribution tree
• B、An RP is required only in networks running Protocol Independent Multicast dense mode ( PIM DM)
• C、The multicast receivers must register with the RP to form the multicast distribution tree
• D、An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM)
• E、An RP is required only in networks running Pro tocol Independent Multicast sparse - dense mode (PIM - SDM)
• F、To form the multicast distribution tree, the multicast sources register with and the receivers join the RP

第7题：

Which two range descriptions correctly describe IP addressing to use when enabling multicast support using the Cisco Unified Wireless Solution?（）

• A、globally scoped address range
• B、239.0.0.X or 239.128.0.X address range
• C、administratively scoped address range that does not overlap with a link-local MAC address
• D、any Class D address range
• E、site-local scoped address range

第8题：

Which two statements are true about the rendezvo us point (RP) in a multicast network?（）

• A、The multicast sources must register with the RP to form the multicast distribution tree.
• B、An RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).
• C、The mu lticast receivers must register with the RP to form the multicast distribution tree.
• D、An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).
• E、An RP is required only in networks running Protocol Independent Mu lticast sparse - dense mode (PIM - SDM).
• F、To form the multicast distribution tree, the multicast sources register with and the receivers join the RP.

第9题：

第10题：

第11题：

第12题：

第13题：

第14题：

第15题：

Half of your network uses RIPv2 and the other half runs OSPF. The networks do not communicate with each other. Which two of these factors describe the impact of activating EIGRP over each separate part？ （）

• A、EIGRP will not be accepted when configured on the actual RIPv2 routers.
• B、OSPF will no longer be used in the routing table， because you only have EIGRP internal routes running.
• C、OSPF will no longer be used in the routing table， because you only have EIGRP external routes running.
• D、RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP external routes running.
• E、RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP internal routes running.
• F、OSPF database will have RIPv2 routes.

第16题：

Which of the addresses below is an example of a valid unicast address?（）

• A、172.31.128.255./18
• B、255.255.255.255
• C、192.168.24.59/30
• D、224.0.0.5
• E、All of the above

第17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18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19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20题：

第21题：

第22题：

第23题：