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Q441. Refer to the exhibit.

Which statement is true?

A. This is an MPLS TE point-to-multipoint LSP in an MPLS network.

B. This is an MPLS TE multipoint-to-point LSP in an MPLS network.

C. This is a point-to-multipoint LSP in an MPLS network.

D. This is a multipoint-to-multipoint LSP in an MPLS network.

Answer: D

Explanation:

Same example of this provided on slide 24 at the reference link below:

Reference: “mVPN Deployment Models” Cisco Live Presentation

http://d2zmdbbm9feqrf.cloudfront.net/2014/eur/pdf/BRKIPM-2011.pdf, slide 24

Q442. Which two statements about the assert process in LAN-based PIM are true? (Choose two.)

A. If the metrics are the same, the router with the lowest advertised routing protocol metric for that route is elected.

B. If the metrics are the same, the router with the highest IP address on the LAN is elected.

C. If the metrics are the same, the router with the highest advertised routing protocol metric for that route is elected.

D. If the metrics are the same, the router with the lowest IP address on the LAN is elected.

Answer: A,B

Q443. Refer to the exhibit.

Which option is the result of this configuration?

A. Devices in OSPF area 15 can reach the summary route 192.168.0.0/16 and its more specific subnets.

B. Devices in OSPF area 15 can reach only the more specific routes of 192.168.0.0/16.

C. Devices in OSPF area 0 can reach the summary route 192.168.0.0/16 and its more specific subnets.

D. Devices in OSPF area 0 can reach only the summary route of 192.168.0.0/16.

Answer: A

Explanation:

. area range

To consolidate and summarize routes at an area boundary, use the area range command in router configuration mode. To disable this function, use theno form of this command. Area area-id range ip-address mask [advertise | not-advertise] [cost cost] no area area-id range ip-address mask [advertise | not-advertise] [cost cost]

. Syntax Description

area-id

Identifier of the area about which routes are to be summarized. It can be specified as either a decimal value or as an IP address.

ip-address

IP address.

mask

IP address mask.

advertise

(Optional) Sets the address range status to advertise and generates a Type 3 summary link-state advertisement (LSA).

not-advertise

(Optional) Sets the address range status to DoNotAdvertise. The Type 3 summary LSA is suppressed, and the component networks remain hidden from other networks.

Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_2/iproute/command/reference/fiprrp_r/1rfospf. html

Q444. Refer to the exhibit.

Which OSPFv3 routes will be visible in the routing table of R2?

A. 2001:12::1/128

B. 2001:12::1/128, 2001:112::1/128

C. 2001:12::2/128

D. No OSPFv3 routes will be visible.

Answer: D

Explanation:

The command “ipv6 unicast-routing” needs to be configured on both routers before any IPv6 routes will be seen.

Q445. Refer to the exhibit.

If you change the Spanning Tree Protocol from pvst to rapid-pvst, what is the effect on the interface Fa0/1 port state?

A. It transitions to the listening state, and then the forwarding state.

B. It transitions to the learning state and then the forwarding state.

C. It transitions to the blocking state, then the learning state, and then the forwarding state.

D. It transitions to the blocking state and then the forwarding state.

Answer: C

Explanation:

First, the port will transition to the blocking state, immediately upon the change, then it will transition to the new RSTP states of learning and forwarding.

Port States

There are only three port states left in RSTP that correspond to the three possible operational states. The 802.1D disabled, blocking, and listening states are merged into a unique 802.1w discarding state.

STP (802.1D) Port State

RSTP (802.1w) Port State

Is Port Included in Active Topology?

Is Port Learning MAC Addresses?

Disabled

Discarding

Blocking

Discarding

Listening

Discarding

Yes

Learning

Yes

Forwarding

Yes

Q446. Which three routing protocols utilize TLVs? (Choose three.)

A. BGP

B. IS-IS

C. ODR

D. OSPF

E. EIGRP

F. RIP

Answer: A,B,E

Explanation:

IS-IS, originally designed for Open System Interconnection (OSI) routing, uses TLV parameters to carry information in Link State Packets (LSPs). The TLVs make IS-IS extendable. IS-IS can therefore carry different kinds of information in the LSPs. Several routing protocols use TLVs to carry a variety of attributes. Cisco Discovery Protocol (CDP), Label Discovery Protocol (LDP), and Border Gateway Protocol (BGP) are examples of protocols that use TLVs. BGP uses TLVs to carry attributes such as Network Layer Reachability Information (NLRI), Multiple Exit Discriminator (MED), and local pReference: The IP header of the EIGRP packet specifies IP protocol number 88 within it, and the maximum length of the packet will be the IP MTU of the interface on which it is transmitted, most of the time 1500 octets. Following the IP header is the various Type/Length/Value (TLV) triplets. These TLVs will not only carry the route entries but also provide fields for the management of the DUAL process, multicast sequencing, and IOS software versions from the router.

References: http://www.cisco.com/c/en/us/support/docs/ip/integrated-intermediate-system-to-intermediate-system-is-is/5739-tlvs-5739.html http://ericleahy.com/index.php/eigrp-packets-neighborships/

Q447. DRAG DROP

Drag each IS-IS command on the left to its effect on the right.

Answer:

Q448. What is the VLAN ID range of VLANs that are eligible for pruning?

A. 2 through 1001

B. 1 through 1005

C. 1 through 4096

D. 2 through 1005

Answer: A

Q449. Which circumstance can cause TCP starvation and UDP dominance to occur?

A. Too few queues are available.

B. UDP is comprised of smaller packets than TCP.

C. Retransmitted TCP packets are on the network.

D. UDP and TCP data are assigned to the same service-provider class.

Answer: D

Q450. In an STP domain, which two statements are true for a nonroot switch, when it receives a configuration BPDU from the root bridge with the TC bit set? (Choose two.)

A. It sets the MAC table aging time to max_age time.

B. It sets the MAC table aging time to forward_delay time.

C. It recalculates the STP topology upon receiving topology change notification from the root switch.

D. It does not recalculate the STP topology upon receiving topology change notification from the root switch.

Answer: B,D

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