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Question No: 2
Which functionality is required within an IP router that is situated at the boundary of an IPv4 network and an IPv6 network to allow communication between IPv6-only and IPv4-only nodes?
A. Autoconfiguration
B. Automatic 6to4 Tunnel
C. Automatic 6to4 Relay
D. Network Address Translator-Protocol Translator (NAT-PT)
E. Intrasite Automatic Tunnel Address Protocol (ISATAP)
Answer: D
Question No: 3
A network engineer has set up VRF-Lite on two routers where all the interfaces are in the same VRF. At a later time, a new loopback is added to Router 1, but it cannot ping any of the existing interfaces. Which two configurations enable the local or remote router to ping the loopback from any existing interface? (Choose two.)
A. adding a static route for the VRF that points to the global route table
B. adding the loopback to the VRF
C. adding dynamic routing between the two routers and advertising the loopback
D. adding the IP address of the loopback to the export route targets for the VRF
E. adding a static route for the VRF that points to the loopback interface
F. adding all interfaces to the global and VRF routing tables
Answer: A,B
Question No: 4
What are two rules for compacting IPv6 addresses? (Choose two.)
A. Every 16-bit segment segment that consists of all zeroes can be represented with a single colon.
B. The trailing zeroes in any 16-bit segment do not have to be written.
C. The leading zeroes in any 16-bit segment do not have to be written.
D. Any single, continuous string of one or more 16-bit segments that consists of all zeroes can be represented with a double colon.
E. The maximum number of times a double colon can replace a 16-bit segment that consists of all zeroes is two.
F. Two zeroes in the middle of any 16-bit segment do not have to be written.
Answer: C,D
Question No: 5
Which command prevents routers from sending routing updates through a router interface?
A. default u2013metric 0
B. distribute-list in
C. passive-interface
D. distribute-list out
Answer: C
Question No: 6
Which IP SLA operation requires Cisco endpoints?
A. UDP Jitter for VoIP
B. ICMP Path Echo
C. ICMP Echo
D. UDP Jitter
Answer: A
Explanation:
UDP Jitter Operation
With the addition of real-time traffic (ie: VoIP), the focus shifts not just in the reliability of the network, but also on the delays involved in transmitting the data. Real-time traffic is delay sensitive. For Voice data, packet loss is manageable to some extent, but frequent losses impair communication between endpoints. The UDP jitter operation is the most popular operation because the user can obtain packet loss, jitter and latency from one operation. This also includes unidirectional measurements as well.
The Jitter operation is designed to measure the delay, delay variance and packet loss in IP networks by generating active UDP traffic. It sends N packets, each of size S, from source router to a target router (which requires Cisco IOS IP SLAs responder enabled) each T milliseconds apart. All these parameters are user configurable.
http://www.cisco.com/en/US/technologies/tk648/tk362/tk920/technologies_white_paper09186a00802d5efe.html
Question No: 7
Which option is one way to mitigate symmetric routing on an active/active firewall setup for TCP-based connections?
A. performing packet captures
B. disabling asr-group commands on interfaces that are likely to receive asymetric traffic
C. replacing them with redundant routers and allowing load balancing
D. disabling stateful TCP checks
Answer: D
Question No: 8
A network engineer is asked to create an SNMP-enabled proactive monitoring solution to ensure that jitter levels remain between particular boundaries. Which IP SLA option should the engineer usa?
A. threshold
B. frequency
C. verify-data
D. timeout
Answer: A
Question No: 9
Refer to the Exhibit.
What is the correct configuration to enable router P4 to exchange RIP routing updates with router P1 but not with router P3?
A. P4(Config)# interface fa0/0P4(Config-if)# neighbor 192.168.10.3P4(config-if)# passive- interface fa0/0
B. P4(config)# router ripP4(config-router)#neighbor 192.168.10.3P4(Config- router)#passive-interface fa0/0
C. P4(config)# interface fa0/0P4(config-if)# neighbor 192.168.10.3P4(config-if)# passive interface192.168.10.34
D. P4(config)# router ripP4(config-router)# neighbor 162.168.10.34 no broadcastP4(config- router)# passive-interface fa0/0
Answer: B
Explanation:
When you configure router P1 to be the nieghtobr of P4 with a passive interface, the RIP routing updates will be exchanged with the neighbor only.
Question No: 10
Refer to the exhibit.
Based upon the configuration, you need to understand why the policy routing match counts are not increasing. Which would be the first logical step to take?
A. Confirm if there are other problematic route-map statements that precede divert.
B. Check the access list for log hits.
C. Check the routing table for 212.50.185.126.
D. Remove any two of the set clauses. (Multiple set clause entries will cause PBR to use the routing table.)
Answer: B
Explanation: Explanation
First we should check the access-list log, if the hit count does not increase then no packets are matched the access-list -> the policy based routing match counts will not increase.
Question No: 11
Refer to the exhibit. Based on the output from the show command on RT1 which statement is true?
A. OSPFv3 uses global IPv6 addresses to establish neighbor adjacencies.
B. RT1 has a subnet mask of 64 bits.
C. RT1 has FastEthernet0/0 set as a DR for network type broadcast.
D. OSPFv3 uses Link-local addresses to establish neighbor adjacencies.
E. RT1 does not have a global IPv6 address set on FastEthernet0/0.
F. OSPFv3 uses IPv4 addresses to establish neighbor adjacencies.
Answer: D
Explanation:
OSPFv3 is an updated version of OSPF designed to accommodate IPv6 natively. OSPFv3 uses the multicast address FF02::5 and FF02::6, but like EIGRP it uses its link-local address as the source address in advertisements.
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