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Q1. A Service Provider provides a Layer 2 connection that is based on IEEE 802.1ad. When the customer tries to access a switch at the other side of the link by using SSH, the connection fails. What is the cause of this failure?
A. The Service Provider omitted the command l2protocol-tunnel stp.
B. The Service Provider omitted the command l2protocol-tunnel vtp.
C. The Service Provider omitted the command vlan dot1q tag native.
D. The Service Provider omitted the command spanning-tree bpdufilter enable.
Answer: C
Explanation: https://ccieblog.co.uk/qinq/802-1q-tunnelling-qinq
Q2. When IPv6 is enabled on an interface, which three multicast addresses does the configured interface automatically join? (Choose three.)
A. FF01::2
B. FEC0::1
C. FF02:0:0:0:0:1:FF00::/104
D. FF02::1
E. FF01::1
F. FF02::2
G. FF02::D
H. FF02::5
Answer: C,D,F
Explanation:
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/4_1/configuration/guides/cli_4_1/clibook/ipv6.pdf https://www.iana.org/assignments/ipv6-multicast-addresses/ipv6-multicast-addresses.xml
Q3. Which are the four key design requirements for mobile IP backhaul? (Choose four)
A. network timing distribution and recovery
B. MPLS-enabled interface
C. Layer 2 Tunneling
D. X2 interface turning point
E. DiffServ QoS
F. bandwidth
G. native IPv6 support
H. mandatory Layer 3 access up to a cell site
Answer: A,B,E,H
Q4. In a virtualization concept, which is one of the characteristic of the HVR solution? A. introduces significant contention of resources
B. implements shared control plane resources
C. implements dedicated chassis resources
D. implements dedicated data plane resources
Answer: D
Q5. Due to recent acquisitions, a company's MPLS infrastructure is growing very quickly. Concerns anse about labeling service provider core network The IP address space is designed as per following:
. Service provide ip address range is: 10.0.0.0/16
. All loopback addresses use subnet mask/32
. 10.0.0.0/24 range is used for loopback addresses
. All other subnet masks used for links are /24 and /25
Which command would significantly reduce the label allocations without compromising LDP functionalities?
A. mpls Idp label
allocate global host-routes
B. ip prefix-list List1 deny 10.0.0J16 le 20 ge 25
!
mpls Idp label
allocate global prefix-list List1
C. access-list 1 permit 10.0.0.0.0.0.255.255
mpls Idp neighbor 10.0.0.1 labels accept 3
D. mpls Idp password required for 10
!
access-list 10 permit 10.0.0.1
access-list 10 permit 10.0.0.2
access-list 10 permit 10.0.0.3
Answer: A
Q6. Refer to the exhibit.
It displays the Router_3 FIB information without any OSPF LSDB optimization. An engineer wants to optimize the OSPF LSDB in accordance with RFC 1587 Considering the following restraints:
.Router_3 maintains full connectivity
.Router_2 requires the least configuration
In order to achieve the OSPF LSDB optimization on Router_3. which Cisco IOS command should the engineer use on Router_2?
A. area 1 nssa default-information-originate
B. area n nssa no-summary
area 1 nssa no-redistribution
C. area 1 nssa no-redistribution
area 1 nssa default-information-originate
D. area 1 nssa no-summary
E. area 1 nssa no-redistribution
F. area 1 nssa no-summary
area 1 nssa default-information-originate
Answer: F