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Q1. An engineer is configuring an eBGP peering session. What is the default TTL value?
A. 1
B. 64
C. 127
D. 255
Answer: A
Q2. You are implementing OSPF as the IGP using a single OSPF area design. The router memory usage for OSPF is too high. Which two methods can lower the OSPF memory usage? (Choose two.)
A. Enable OSPF synchronization
B. Implement multi-area OSPF
C. Enable OSPF sham links to reduce the number of LSAs
D. Implement route summarization on the ABRs
E. Enable route leaking between Level 1 and Level 2 areas
Answer: B,D
Q3. When redistributing EIGRP routes into OSPF as type E2 external OSPF routes, what is the default OSPF seed metric?
A. Infinite
B. 0
C. 1
D. 10
E. 20
Answer: E
Q4. Which series of commands configures area 1 as an OSPF totally stubby area on a Cisco IOS XR router?
A. router ospfv3 1 router-id 10.10.10.1 area 0 interface GigabitEthernet 0/0/0/1 area 1 stub no-summary interface GigabitEthernet 0/0/0/2
B. router ospfv3 1 router-id 10.10.10.1 default-information originate area 0 interface GigabitEthernet 0/0/0/1 area 1 stub interface GigabitEthernet 0/0/0/2
C. ipv6 prefix-list default permit ::0/0 router ospfv3 1 router-id 10.10.10.1 default-information originate area 0 interface GigabitEthernet 0/0/0/1 distribute-list prefix-list default in area 1 interface GigabitEthernet 0/0/0/2
D. router ospfv3 1 router-id 10.10.10.1 area 0 interface GigabitEthernet 0/0/0/1 area 1 interface GigabitEthernet 0/0/0/2 no-summary passive
E. router ospfv3 1 router-id 10.10.10.1 area 0 interface GigabitEthernet 0/0/0/1 area 1 stub interface GigabitEthernet 0/0/0/2 default-cost 20
Answer: A
Q5. There are how many IS-IS area(s) defined in this network Scenario?
A. 1
B. 2
C. 3
D. 4 Answer: C
Explanation: #show clns
Answer:
Q6. Refer to the Cisco IOS XE IS-IS configuration exhibit.
What are two problems with the configuration that are causing the IPv4, or the IPv6, or the IPv4 and IPv6 IS-IS operations to fail? (Choose two.)
A. The configuration is missing the interface gi0/0 and interface gi0/0 commands under router isis 1.
B. The configuration is missing the address-family ipv4 unicast and address-family ipv6 unicast commands under router isis 1.
C. IPv6 unicast routing has not been enabled globally on the Cisco IOS XE router.
D. The gi0/0 and gi0/1 interfaces are not participating in the router isis 1 routing instance.
E. Multitopology IS-IS must be enabled to support both IPv4 and IPv6.
F. Another router isis instance must be enabled to support IPv6.
Answer: C,D
Explanation:
http://www.cisco.com/en/US/docs/switches/metro/me3400/software/release/12.2_50_se/co nfiguration/guide/swipv6.pdf
. When using user-network interface (UNI) or enhanced network interface (ENI) ports for any IPv6-related features, you must first globally enable IP routing and IPv6 routing on the switch by entering the ip routing ipv6 unicast-routing
Q7. When monitoring the OSPF operations in the network, you notice that the OSPF process is not load balancing traffic across multiple OSPF links. Which configuration adjustment could be made to enable the OSPF process to load balance traffic across multiple OSPF links?
A. Enable BFD on the OSPF interfaces and on the OSPF routing process.
B. Enable NSR on the OSPF routing process.
C. Enable NSF on the OSPF routing process.
D. Adjust the OSPF cost on the OSPF interfaces.
E. Adjust the OSPF variance parameter.
F. Use the wide-style OSPF metric instead of the narrow-style OSPF metric.
Answer: D
Q8. RAG DROP
Answer:
Q9. Which two statements regarding OSPFv2 or OSPFv3 authentication are correct? (Choose two.)
A. OSPFv2 supports MD5 authentication.
B. OSPFv2 supports MD5 or SHA authentication.
C. OSPFv2 relies on the native security stack that uses IPsec.
D. OSPFv3 supports MD5 authentication.
E. OSPFv3 supports MD5 or SHA authentication.
F. OSPFv3 relies on the native security stack that uses IPsec.
Answer: A,F
Q10. Refer to the exhibit.
Area 1 routers must have only a default route in their OSPF routing tables..Which configuration must be completed on XR2 to meet this requirement?
A. router ospf 1 address-family ipv4 interface GigabitEthernet0/0/0/1 area 1 stub no-summary
B. router ospf 1 area 1 stub no-summary
C. router ospf 1 area 1 stub interface GigabitEthernet0/0/0/1
D. router ospf 1 area 1 stub no-summary interface GigabitEthernet0/0/0/1
Answer: D