單項(xiàng)選擇題

Refer to the exhibit. Router E learned about the PIM RP (designated as 7.7.7.7) from four different sources. Routers A and D advertised the 7.0.0.0 network via EIGRP. Routers B and C advertised the 7.0.0.0 network via OSPF. Considering that all four Ethernet interfaces on router E could potentially lead back to the PIM-RP, when router E receives the first multicast packet down the shared tree, which incoming interface will be used to successfully pass the RPF check?()

A. E0
B. E1
C. E2
D. E3
E. None of these interfaces will be used to successfully pass the RPF check.
F. All of these interfaces would successfully pass the RPF check.


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1.單項(xiàng)選擇題What is the minimum key size to enable SSH v2?()

A.512 bits
B.768 bits
C.1024 bits
D.2048 bits

2.單項(xiàng)選擇題

Refer to the exhibit. How would you get the 1.1.1.1 network into the OSPF database? ()

A. Configure RTA as an ASBR
B. Redistribute connected routes on RTA into OSPF
C. Set up a virtual link between area 1 and area 0
D. Set up a virtual link between area 1 and area 2
E. Add a static route into RTB and enter it into OSPF
F. Place a network 1.1.1.0 0.0.0.0 command into RTB
G. Set up a unique router ID on RTA using an RFC 1918 address
H. Change area 0 on RTB to area 1

3.單項(xiàng)選擇題What is a requirement to enable Cisco IOS IPS with 5.x signature?()

A.disable Zone-Based Firewall as the two features are not compatible
B.disable Cisco Express Forwarding as the two features are not compatible
C.generate a certificate and export on Cisco.com to receive a signature update
D.import the public RSA key from the Cisco IPS team that allows the router to verify that a signatureupdate (which was signed by this key) comes from Cisco

4.單項(xiàng)選擇題You add the following commands into a routed topology: router eigrp 1 variance 3 traffic-share min across-interfaces. Users now complain about voice quality in your VoIP system. What should be done? ()

A. Add the command: router eigrp 1 traffic-share voice interface fast 0/0
B. Reconfigure EIGRP to recognize voice packets
C. Remove the variance from the configuration
D. Reconfigure the VoIP system to use RTP sequence number headers
E. Use an H '323 gatekeeper for your VoIP system to negotiate an H'245 uneven packet buffer
F. Reconfigure EIGRP to version 2

5.單項(xiàng)選擇題Which command can be used to check the assignment of RPs to multicast groups?()

A.show ip pim rendez-vous
B.show ip rpf rp mapping
C.show ip pim rp mapping
D.show ip pim rp info
E.show ip pim

6.單項(xiàng)選擇題What does the command ip pim send-rp-discovery scope 16 achieve?()

A.it enables PIM BSR
B.it makes the router an Auto-RP mapping agent
C.it advertises the router as an RP with Auto-RP
D.it makes the router an Auto-RP client

7.單項(xiàng)選擇題What is the default behaviour of PIM-SSM If there are multiple equal-cost paths to the multicast source?()

A.It will send the join only to the neighbor with the highest IP address.
B.It will send the join only to the neighbor with the lowest IP address.
C.It will send the join in a round-robin fashion across all neighbors.
D.It will send the join to all neighbors.

8.單項(xiàng)選擇題What is the RP for IPv6 multicast address FF76:0130:2001:db8:3811::2323?()

A.2001:db8:3811::1
B.2001:db8:3811::2323
C.2001:db8:3811::0130
D.2001:db8:3811::3
E.2001:db8:3811::6

9.多項(xiàng)選擇題Which three factors have the biggest influence on OSPF scalability?()

A.Flooding paths and redundancy
B.Amount of routing information in the OSPF area or routing domain
C.Number of routers with Cisco Express Forwarding enabled
D.Number of neighbor adjacencies
E.Other routing protocols in use
F.OSPF timer reconstruction negotiation
G.Redistribution with BGP neighbors
H.Redistribution with other IGP routing protocols, such as RIP or EIGRP

10.單項(xiàng)選擇題Two BGP peers connected through a routed firewall are unable to establish a peering relationship. What could be the most likely cause? ()

A. BGP peers must be Layer 2-adjacent
B. EBGP multihop is not configured
C. The firewall is not configured to allow IP protocol 89
D. The firewall is not configured to allow UDP 179.

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