NEW QUESTION 1
Select and Place:

Answer:

Explanation:

NEW QUESTION 2
Refer to the partial Cisco IOS router configuration exhibit.

Which type of tunnel configuration is shown?

• A. GRE tunnel
• B. manual 6in4 tunnel
• C. 6to4 automatic tunnel
• D. 6RD
• E. IPv4-in-IPv6 tunnel

Answer: B

Explanation: http://www.networking-forum.com/blog/?p=24

NEW QUESTION 3
Which statement about the benefits of MPLS PHP is true?

• A. PHP is implemented to increase the performance on the egress edge LS
• B. PHP allows the egress edge LSR to perform only one lookup to route the IP packet based on destination IP address and routing table.
• C. PHP is implemented to increase the performance on the egress edge LS
• D. PHP enables the egress edge LSR to perform only one lookup based on the ingress label.
• E. PHP is implemented to increase the performance on the egress edge LS
• F. PHP enables the egress edge LSR to perform two lookups, first lookup based on the ingress label and a second route lookup based on the destination IP address.
• G. PHP is implemented to increase the performance on the LSR (P routers). PHP enables the LSR (P routers) to perform only one lookup based on the ingress label.
• H. PHP is implemented to increase the performance on the LSR (P routers). PHP enables the LSR (P routers) to perform only one route lookup based on the destination IP address.
• I. PHP is implemented to increase the performance on the LSR (P routers). PHP enables the LSR (P routers) to perform two lookups, first lookup based on the ingress label and a second route lookup based on the destination IP address.
• J. PHP is implemented to increase the performance on the ingress edge LS
• K. PHP enables the ingress edge LSR to perform only one lookup based on the ingress label.
• L. PHP is implemented to increase the performance on the ingress edge LS
• M. PHP enables the ingress edge LSR to perform two lookups, first lookup based on the ingress label and a second route lookup based on the destination IP address.

Answer: A

Explanation:
http://packet-lab.com/main/service-provider/ccip/item/89-mpls-penultimate-hop-popping.html

NEW QUESTION 4
During the BGP route selection process on Cisco routers, which BGP attribute is examined first, to determine the best path to use?

• A. AS path
• B. MED
• C. local preference
• D. weight
• E. origin

Answer: D

NEW QUESTION 5
What is the foundation architecture of Cisco Next Generation Networks?

• A. IP/MPLS
• B. IP SLA
• C. TRILL
• D. REP

Answer: A

NEW QUESTION 6
Which spanning-tree mode uses the name command to configure a region name?

• A. MST
• B. PVST+
• C. PVRST+
• D. RSTP

Answer: A

NEW QUESTION 7
Refer to the exhibit.

A network engineer configured BGP PE to CE neighbor sessions with the commands shown. What does 'address-family ipv4 vrf vrf-cisco' from the configuration allow?

• A. activates the advertisement of the IPv4 address family
• B. defines customer's routing context
• C. specifies a network and mask to announce in VRF-Cisco
• D. redistribute VRF-Cisco

Answer: B

NEW QUESTION 8
On Cisco IOS XR software, what is the default commit option?

• A. best-effort
• B. psuedo-atomic
• C. replace
• D. force

Answer: B

Explanation:

NEW QUESTION 9
Refer to the show command exhibit.

Which statement is true?

• A. It shows the result of the target configuration merged with the running configuration.
• B. It shows the contents of the uncommitted configuration.
• C. It shows the contents of the failed configuration.
• D. It shows the contents of the running configuration.

Answer: B

Explanation: http://www.cisco.com/en/US/docs/ios_xr_sw/iosxr_r3.6/system_management/command/reference/ yr36conf.pdf
To display information about the current configuration session (target configuration), use the show configuration command in any configuration mode. show configuration [merge] [running]

NEW QUESTION 10
Which four statements about REP configurations on a Cisco ME 3400 switch port are true? (Choose four.)

• A. The port must be an NNI type and must be in trunk mode.
• B. Use the rep segment number command to enable REP on the switch port.
• C. A REP segment cannot be wrapped into a ring topolog
• D. REP supports only a topology where each REP segment has two exit points via two edge switches.
• E. The port where the segment terminates is called the edge port.
• F. With REP, at least one port is always blocked in any given segment-that is, the alternate port.
• G. If a failure occurs within the segment, the blocked port goes to the forwarding state after it goes through the listening state and the learning state.

Answer: ABDE

Explanation: http://www.cisco.com/en/US/docs/switches/metro/me3400/software/release/12.2_40_se/configurat ion/guide/swrep.html
Resilient Ethernet Protocol (REP) on the Cisco ME 3400E Ethernet Access switch. REP is a Cisco proprietary protocol that provides an alternative to Spanning Tree Protocol (STP) to control network loops, handle link failures, and improve convergence time. REP controls a group of ports connected in a segment, ensures that the segment does not create any bridging loops, and responds to link failures within the segment. REP provides a basis for constructing more complex networks and supports VLAN load balancing.
REP Configuration Guidelines
Follow these guidelines when configuring REP:
·We recommend that you begin by configuring one port and then configure the contiguous ports to minimize the number of segments and the number of blocked ports. ·If more than two ports in a segment fail when no external neighbors are configured, one port goes into a forwarding state for the data path to help maintain connectivity during configuration. In the show rep interface privileged EXEC command output, the Port Role for this port shows as Fail Logical Open; the Port Role for the other failed port shows as Fail No Ext Neighbor. When the external neighbors for the failed ports are configured, the ports go through the alternate port state transitions and eventually go to an open state or remain as the alternate port, based on the alternate port election mechanism.
·REP ports must be Layer 2 trunk ports.
·Be careful when configuring REP through a Telnet connection. Because REP blocks all VLANs until another
REP interface sends a message to unblock it, you might lose connectivity to the switch if you enable REP in a Telnet session that accesses the switch through the same interface. ·You cannot run REP and STP or REP and Flex Links on the same segment or interface. ·If you connect an STP network to the REP segment, be sure that the connection is at the segment edge. An STP connection that is not at the edge could cause a bridging loop because STP does not run on REP segments. All STP BPDUs are dropped at REP interfaces. ·You must configure all trunk ports in the segment with the same set of allowed VLANs, or a misconfigurations occurs.·If REP is enabled on two ports on a switch, both ports must be either regular segment ports or edge ports.
REP ports follow these rules:
If only one port on a switch is configured in a segment, the port should be an edge port. If two ports on a switch belong to the same segment, both ports must be edge ports or both ports must be regular segment ports.
If two ports on a switch belong to the same segment and one is configured as an edge port and one as a regular segment port (a misconfiguration), the edge port is treated as a regular segment port.
·REP interfaces come up in a blocked state and remains in a blocked state until notified that it is safe to unblock. You need to be aware of this to avoid sudden connection losses. ·REP sends all LSL PDUs in untagged frames on the native VLAN. The BPA message sent to the Cisco multicast address is sent on the administration VLAN, which is VLAN 1 by default. ·REP ports can not be configured as one of these port types:
SPAN destination port Private VLAN port Tunnel port
Access port
·On a Cisco ME-3400 switch, REP ports must be network node interfaces (NNI). User-network interfaces (UNIs) cannot be REP ports.
·REP is supported on EtherChannels, but not on an individual port that belongs to an EtherChannel.
·There is a maximum of 64 REP segments per switch.

NEW QUESTION 11
Select and Place:

Answer:

Explanation:

NEW QUESTION 12
ISPs use which protocol to establish peering sessions in an Internet exchange point environment?

• A. LDP
• B. IS-IS
• C. BGP
• D. OSPF

Answer: C

NEW QUESTION 13
Which BGP attribute is also used for loop prevention?

• A. weight
• B. local preference
• C. MED
• D. AS path

Answer: D

Explanation:
As RFC 4271 says, "AS loop detection is done by scanning the full AS path (as specified in the AS_PATH attribute), and checking that the autonomous system number of the local system does not appear in the AS path".

NEW QUESTION 14
Which IOS Software solution is used for transporting RFC 1918 networks via IPSec + GRE VPNs over the internet?

• A. Dynamic Multipoint VPN
• B. Group Encrypted Transport VPN
• C. IPS
• D. URL Filtering

Answer: A

NEW QUESTION 15





Hot Area:

Answer:

Explanation:
multiple spanning-tree protocol
Use the "show spanning-tree" command to see the "Spanning tree enabled protocol mstp" output.

NEW QUESTION 16
On Cisco IOS XR software, how is LDP enabled on an interface?

• A. LDP is automatically enabled globally on all interfaces, when ip cef is enabled globally.
• B. LDP is enabled on each interface, using the mpls ip interface configuration command.
• C. LDP is enabled on each interface, using the interface command under mpls ldp (MPLS LDP configuration mode).
• D. LDP is enabled globally on all interfaces, using the mpls ldp global configuration command.
• E. LDP is enabled globally on all interfaces, using the mpls ip global configuration command.

Answer: C

Explanation:
http://www.cisco.com/en/US/docs/ios-xml/ios/mp_ldp/configuration/12-4m/mp-ldp-12-4m-book.pdf

NEW QUESTION 17
What command will install the image needed on the Cisco IOS-XR if the SSH configuration options are unavailable?

• A. install activate disk0:c12k-k9sec.pie-4.1.2
• B. install activate disk0:c12k-diags.pie-4.1.2
• C. install commit disk0:c12k-diags.pie-4.1.2
• D. install ssh activate disk0:c12k-k9sec.pie-4.1.2

Answer: A

NEW QUESTION 18
Refer to the configuration example exhibit.

Which statement is true?

• A. A trunk port has been created and VLAN has been allowed.
• B. An access port has been created on a UNI.
• C. A customer VLAN of 209 is configured.
• D. A QinQ VLAN of 118 is configured.

Answer: D

Explanation: http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/54sg/configuration/guide/tunnel.html#wp1026594

NEW QUESTION 19
When configuring an ACL entry, which network and wildcard mask matches only IP addresses 10.8.144.0 to 10.8.151.255?

• A. 10.8.144.0 0.0.3.255
• B. 10.8.144.0 0.0.7.255
• C. 10.8.144.0 0.0.15.255
• D. 10.8.144.0 0.0.252.255
• E. 10.8.144.0 0.0.248.255
• F. 10.8.144.0 0.0.240.255

Answer: B