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A network engineer is extending a LAN segment between two geographically separated data centers. Which enhancement to a spanning-tree design prevents unnecessary traffic from crossing the extended LAN segment?
A. Modify the spanning-tree priorities to dictate the traffic flow.
B. Create a Layer 3 transit VLAN to segment the traffic between the sites.
C. Use VTP pruning on the trunk interfaces.
D. Configure manual trunk pruning between the two locations.
The OSPF database of a router shows LSA types 1, 2, 3 and 7 only. Which type of area is this router connected to?
A. backbone area
B. totally stubby area
C. stub area
D. not-so-stubby area
Which feature can you implement to most effectively protect customer traffic in a rate-limited WAN Ethernet service?
B. IntServ with RSVP
D. The IPsec VTI qos pre-classify command
An engineer has configured a router to use EUI-64, and was asked to document the IPv6 address of the router. The router has the following interface parameters:
mac address C601.420F.0007
Which command configures port security on a switch to enable permanent MAC address learning on the interface?
A. switchport port-security mac-address-learning enable
B. switchport port-security mac-address timer 0
C. switchport port-security mac-address sticky
D. switchport port-security mac-address maximum 1 sticky
E. switchport port-security mac-address permanent
If EIGRP and OSPF are configured within an administrative domain for the same network, which value can you change so that the OSPF becomes the installed routing protocol for all routes?
A. Local preference
D. Administrative distance
E. Prefix length
Which three components are in an MPLS header? (choose three)
A. a 4-bit experimental use field
B. a 4-bit label stack entry
C. an 8-bit TTL
D. a 2-bottom of stack
E. a 3-bit experimental use field
F. a 20-bit label
What is the main function of VRF-lite?
A. To allow devices to use labels to make Layer 2 Path decisions
B. To segregate multiple routing tables on a single device
C. To connect different autonomous systems together to share routes
D. To route IPv6 traffic across an IPv4 backbone
Refer to the exhibit. Which prefixes will have their distance changed?
A. all prefixes matching access-list 10 learned from peers in the range 10.1.12.0- 10.1.12.255
B. all internal prefixes in the range 10.1.12.0-10.1.12.255 learned from peers matching access-list 10.
C. all internal prefixes matching access-list 10 learned from peers in the range 10.1.12.0- 10.1.12.255
D. all prefixes in the range 10.1.12.0-10.1.12.255 learned from peers matching access-list
Which two methods do IPsec VTIs used to identify and transmit encrypted traffic through the tunnel? (choose two)
A. static routing
B. dynamic routing
C. object groups
When you deploy DMVPN, what is the purpose of the command crypto isakmp key ciscotest address 0.0.0.0 0.0.0.0 ?
A. It is configured on hub and spoke router to establish peering
B. It is configured on hub to set the pre-shared key for the spoke routers
C. It is configured on the spokes to indicate the hub router
D. It is configured on the Internet PE routers to allow traffic to traverse the ISP core
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