Exam Code: ccie 400 101 dumps (Practice Exam Latest Test Questions VCE PDF)
Exam Name: CCIE Routing and Switching (v5.0)
Certification Provider: Cisco
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Q91. Refer to the exhibit. 

This network is configured with PIM, and the RPF check has failed toward the multicast source. Which two configuration changes must you make to router R3 to enable the RPF check to pass? (Choose two.) 

A. Configure a static multicast route to the multicast source through the tunnel interface. 

B. Configure a static multicast route to the multicast source LAN through the tunnel interface. 

C. Configure a static multicast route to the multicast source LAN through the Ethernet interface. 

D. Remove the command ip prim bidir-enable from the R3 configuration. 

Answer: A,B 


Q92. Refer to the exhibit. 

Which two statements are true? (Choose two.) 

A. This is the output of the show ip ospf command. 

B. This is the output of the show ip protocols command. 

C. This router is an ABR. 

D. This router is an ASBR. 

E. Authentication is not configured for the area. 

Answer: A,E 

Explanation: 

The following is sample output from the show ip ospf command when entered without a specific OSPF process ID with no authentication. 

Router# show ip ospf 

Routing Process "ospf 201" with ID 10.0.0.1 and Domain ID 10.20.0.1 

Supports only single TOS(TOS0) routes 

Supports opaque LSA 

SPF schedule delay 5 secs, Hold time between two SPFs 10 secs 

Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs 

LSA group pacing timer 100 secs 

Interface flood pacing timer 55 msecs 

Retransmission pacing timer 100 msecs 

Number of external LSA 0. Checksum Sum 0x0 

Number of opaque AS LSA 0. Checksum Sum 0x0 

Number of DCbitless external and opaque AS LSA 0 

Number of DoNotAge external and opaque AS LSA 0 

Number of areas in this router is 2. 2 normal 0 stub 0 nssa 

External flood list length 0 

Area BACKBONE(0) 

Number of interfaces in this area is 2 

Area has no authentication 

SPF algorithm executed 4 times 

Area ranges are 

Number of LSA 4. Checksum Sum 0x29BEB 

Number of opaque link LSA 0. Checksum Sum 0x0 

Number of DCbitless LSA 3 Number of indication LSA 0 

Number of DoNotAge LSA 0 Flood list length 0 

Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/command/iro-cr-book/ospf-s1.html#wp8749965360 


Q93. DRAG DROP 

Drag each IS-IS command on the left to its effect on the right. 

Answer: 


Q94. Which address is a MAC address that is mapped from an IPv6 address (RFC 2464)? 

A. 3333.FF17.FC0F 

B. FFFE. FF17.FC0F 

C. FF34.3333.FF17 

D. FF7E.FF17.FC0F 

Answer:

Explanation: 

An IPv6 packet with a multicast destination address DST, consisting of the sixteen octets DST through DST, is transmitted to the Ethernet multicast address whose first two octets are the value 3333 hexadecimal and whose last four octets are the last four octets of DST. 

Reference: https://tools.ietf.org/html/rfc2464 


Q95. Which three statements about the default behaviour of eBGP sessions are true? (Choose three.) 

A. eBGP sessions between sub-ASs in different confederations transmit the next hop unchanged. 

B. The next hop in an eBGP peering is the IP address of the neighbor that announced the route. 

C. When a route reflector reflects a route to a client, it transmits the next hop unchanged. 

D. The next hop in an eBGP peering is the loopback address of the interface that originated the route. 

E. The next hop in an eBGP peering is the loopback address of the neighbor that announced the route. 

F. When a route reflector reflects a route to a client, it changes the next hop to its own address. 

Answer: A,B,C 


Q96. Refer to the exhibit. 

Which command can you enter to resolve this error message on a peer router? 

A. username <username> password <password> 

B. ppp chap <hostname> 

C. aaa authorization exec if-authenticated 

D. aaa authorization network if-authenticated 

Answer:


Q97. Which statement about SSHv2 is true? 

A. Routers acting as SSH clients can operate without RSA keys. 

B. SSHv2 supports port forwarding and compression. 

C. The RSA key pair size must be at least 512. 

D. You must configure a default gateway before you enable SSHv2. 

Answer:


Q98. In the DiffServ model, which class represents the lowest priority with the highest drop probability? 

A. AF11 

B. AF13 

C. AF41 

D. AF43 

Answer:

Explanation: 

Assured Forwarding (AF) Behavior Group 

Class 1 

Class 2 

Class 3 

Class 4 

Low Drop 

AF11 (DSCP 10) 

AF21 (DSCP 18) 

AF31 (DSCP 26) 

AF41 (DSCP 34) 

Med Drop 

AF12 (DSCP 12) 

AF22 (DSCP 20) 

AF32 (DSCP 28) 

AF42 (DSCP 36) 

High Drop 

AF13 (DSCP 14) 

AF23 (DSCP 22) 

AF33 (DSCP 30) 

AF43 (DSCP 38) 

Reference: http://en.wikipedia.org/wiki/Differentiated_services 


Q99. What is the maximum number of secondary IP addresses that can be configured on a router interface? 

A. 1 

B. 2 

C. 4 

D. 1024 

E. 65535 

F. no limit to the number of addresses 

Answer:

Explanation: 

From “IP Routing Frequently Asked Questions” 

Q. What are the maximum number of secondary IP addesses that can be configured on a router interface? 

.A. There are no limits on configuring secondary IP addresses on a router interface. 

Reference: http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/28745-44.html#q21 


Q100. Refer to the exhibit. 

Which two statements about the device that generated the output are true? (Choose two.) 

A. The SPT-bit is set. 

B. The sparse-mode flag is set. 

C. The RP-bit is set. 

D. The source-specific host report was received. 

Answer: A,D 

Explanation: 

In this example we can see that the s, T, and I flags are set. Here is a list of the flags and their meanings: 

show ip mroute Field Descriptions 

Field Description 

Flags: 

Provides information about the entry. 

D - Dense 

Entry is operating in dense mode. 

S - Sparse 

Entry is operating in sparse mode. 

B - Bidir Group 

Indicates that a multicast group is operating in bidirectional mode. 

s - SSM Group Indicates that a multicast group is within the SSM range of IP addresses. This flag is reset if the SSM range changes. 

C - Connected 

A member of the multicast group is present on the directly connected interface. 

L - Local 

The router itself is a member of the multicast group. 

P - Pruned 

Route has been pruned. The Cisco IOS software keeps this information so that a downstream member can join the source. 

R - RP-bit set 

Indicates that the (S, G) entry is pointing toward the RP. This is typically prune state along the shared tree for a particular source. 

F - Register flag 

Indicates that the software is registering for a multicast source. 

T - SPT-bit set 

Indicates that packets have been received on the shortest path source tree. 

J - Join SPT 

For (*, G) entries, indicates that the rate of traffic flowing down the shared tree is exceeding the SPT-Threshold set for the group. (The default SPT-Threshold setting is 0 kbps.) When the J- Join shortest path tree (SPT) flag is set, the next (S, G) packet received down the shared tree triggers an (S, G) join in the direction of the source, thereby causing the router to join the source tree. 

For (S, G) entries, indicates that the entry was created because the SPT-Threshold for the group was exceeded. When the J- Join SPT flag is set for (S, G) entries, the router monitors the traffic rate on the source tree and attempts to switch back to the shared tree for this source if the traffic rate on the source tree falls below the SPT-Threshold of the group for more than 1 minute. 

M - MSDP created entry 

Indicates that a (*, G) entry was learned through a Multicast Source Discovery Protocol (MSDP) peer. This flag is only applicable for a rendezvous point (RP) running MSDP. 

X - Proxy Join Timer Running 

Indicates that the proxy join timer is running. This flag is only set for (S, G) entries of an RP or "turnaround" router. A "turnaround" router is located at the intersection of a shared path (*, G) tree and the shortest path from the source to the RP. 

A - Advertised via MSDP 

Indicates that an (S, G) entry was advertised through an MSDP peer. This flag is only applicable for an RP running MSDP. 

U - URD 

Indicates that a URD channel subscription report was received for the (S, G) entry. 

I - Received Source Specific Host Report 

Indicates that an (S, G) entry was created by an (S, G) report. This (S, G) report could have been created by IGMPv3, URD, or IGMP v3lite. This flag is only set on the designated router (DR). 

Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/12s_ssm.html