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单选题To which of these does IP multicast send packets？（）Aa single hostBa subset of hostsCall hosts sequentiallyDall hosts simultaneously

题目
单选题
To which of these does IP multicast send packets？（）
A

 a single host

B

 a subset of hosts

C

 all hosts sequentially

D

 all hosts simultaneously

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相似问题和答案

第1题：

When building an IP multicast domain using PIM which mode assumes that other routers do not want to forward multicast packets for the group?()

A. PIM - DM

B. PIM - SM

C. PIM - RP

D. CGMP

E. IGMP snooping


参考答案：B

第2题：

To which of these does IP multicast send packets?()

A. a single host

B. a subset of hosts

C. all hosts sequentially

D. all hosts simultaneously


参考答案：B

第3题：

The ERX Edge Router in your Bridged 1483 network has multiple external DHCP servers configured.During discovery, which algorithm does the router use to decide which DHCP server to send packets to?()

A. direct mode

B. round robin

C. weighted round robin

D. No algorithm is used.


参考答案：D

第4题：

Forward ip multicast packets based on what？


正确答案: IP multicast packets is forwarded based RPF and multicast routing table.
After multicast packets received on the interface of a router，RPF check will be performed.If the packets pass through RPF check， the router will look up the multicast routing table for the packets and packets will be transfer out interfaces in the outgoing interface list of the routing table entry.

第5题：

When building an IP multicast domain using PIM which mode assumes  that other routers do not want to forward multicast packets for the group?（）

  • A、PIM - DM
  • B、PIM - SM
  • C、PIM - RP
  • D、CGMP
  • E、IGMP snooping

正确答案:B

第6题：

Refer to the exhibit. Which statement is true about the configuration? ()

A. RTA will not establish an OSPF adjacency w ith RTB

B. RTA will send OSPF hello packets, but will not send OSPF updates

C. RTA will not accept OSPF hello packets from RTB

D. RTA will send OSPF updates, but will not establish an adjacency with RTB


参考答案：A

第7题：

What kind of packets does OSPF send to keep up connectivity with its neighboring routers?（）

  • A、SPF packets
  • B、hello packets
  • C、keepalive packets
  • D、dead interval packets
  • E、LSU packets

正确答案:B

第8题：

What kind of packets does OSPF send to keep up connectivity with its neighboring routers?()

A. SPF packets

B. hello packets

C. keepalive packets

D. dead interval packets

E. LSU packets


参考答案：B

第9题：

What is the purpose of this command? ip route 0.0.0.0 0.0.0.0 serial0/0（）

  • A、It configures a router to send all packets out interface serial 0/0.
  • B、It configures a router to block routing updates from being sent out interface serial 0/0.
  • C、It configures a router as a firewall, blocking all unauthorized packets from exiting serial 0/0.
  • D、It configures a router to send all packets for unknown destination networks out interface serial 0/0.
  • E、It configures a router to drop all packets for which the destination network is unknown.

正确答案:D

第10题：

Which three IP multicast group concepts are true?（）

  • A、If a packet is sent to a multicast group address, the multicast frame contains the source multicast address.
  • B、A router does not have to be a member of a multicast group to recei ve multicast data.
  • C、A router must be a member of a multicast group to send to the group.
  • D、A router does not have to be a member of a multicast group to send to the group.
  • E、If a packet is sent to a multicast group address, all members of the multic ast group will receive it.
  • F、A router must be a member of a multicast group to receive multicast data.

正确答案:D,E,F

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