| Exam Code | 400-101 |
| Exam Name | CCIE Routing and Switching Written Exam v5.1 |
| Questions | 150 Questions Answers With Explanation |
| Update Date | March 05,2024 |
| Price |
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What is the correct multicast destination address for IGMPv2 leave-group messages?
A. 239.00.2
B. 239001
C. 224002
D. 224001
Which two statements about IS-IS authentication are true? (Choose two.)
A. Level 1 LSPs use the domain password
B. Area and domain authentication must be configured together
C. LSP authentication is in use unauthorized devices can form neighbor adjacencies
D. Passwords can be configured on a per-interface basis
E. Level 2 LSPs transmit the password encrypted inside the IS-IS PDU
Drag and drop the MPLS term on the left to the function it performs on the right.
Which two items must be confined to caputure packet data with the Embedded Packet Caputure feature?(Choose two)
A. the capture point
B. the caputure filter
C. the capture buffer
D. the coputure file export location
E. the capture rate
F. the buffer memory size
Refer to the exhibit.What are two effects of the given configuration? (Choose two)
A. The aggregate weight of track object 100 is set to 30
B. The aggregate weight of track object 100 is set to 40
C. Track object 100 goes down if Ethernet1/2 goes down
D. Track object 100 stays up as long as both Ethernet 1/0 and Ethernet 1/ are up
E. Tack object 100 goes down if all three interfaces go down
F. Track object 100 goes down If Ethernet1/0 goes down
What does Cisco Fog Computing provide to the loT solution?
A. It reduces latency and required bandwidth.
B. Enables remote access to individual loT components.
C. Provides scalability
D. Enables laaS
How does MSTP maintain compatibility with RSTP?
A. RSTP encodes region information from an MSTP BPDU into a single instance.
B. MSTP supports five port states in the same way as RSTP.
C. MSTP sends all spanning-tree information in one BPDU.
D. RSTP implements a TTL that is compatible with the MSTP max age timer
Refer to the exhibit.R2 attempted to copy a file from the TFTP server, it received this error message. Which action can you take to correct the problem?
A. Configure the iptftp source-interface Fa0/1 command on R1.
B. Configure the iptftp source-interface Loopback0 command on R1.
C. Configure the iptftp source-interface Loopback0 command on R2.
D. Change the access-list configuration on R1 to access-list 1 permit 172.16.1.0 0.0.0.255
E. Configure the iptftp source-interface Fa0/1 command on R2.
Which option is the task of an IGMP Snooping Querier?
A. It sends PIM-SM messages to all multicast routers
B. It coordinates the election of a mapping agent
C. It can limit the number of multicast messages a host receives
D. It facilitates populating the group membership tables on IGMP Snooping-enabled switches
1 Gbps router interface to a nearly data center is showing tens of thousands of egress drops per day. The round trip time is 2 ms and the average packet size is 1000 bytes. An analysis shows that the traffic is TCP-based business application traffic. All traffic is important, so QoS will not help. You decide to increase egress buffers, keeping in mind that the TCP retransmit timer is 2* SRTT. What is the maximum amount of buffering that can be used to reduce the impact on the application without impacting application throughput?
A. Increase the number of buffer to hold the amount of data in the TCP retransmit timer, (two times the RTT, or 4 ms) of data at 1 Gbps (500 packets)
B. Increase the number of buffers until the drops decreases to an acceptable level.
C. The default number of buffer is sufficient, the network is performing as it should.
D. Increase the number of buffer to hold the amount of data in the Bandwidth Delay Product, or 2 ms of data at 1 Gbps (250 packets
