Cisco CCIE Written Metro Ethernet Set 5

1.

An inverse ARP is sent:

To map a hostname to an IP address To map an IP address to a hostname To map an MAC address to an IP address To map a MAC address to a hostname To map an IP address to a MAC address

2.

Regarding ATM Cell Transport, how many bytes per cell are transported?

48, only the ATM cell payload 49, the cell payload plus a control byte per cell 52, the ATM cell without CRC 53, the complete ATM cell 24, the complete ATM cell

3.

Which protocols can be used to authenticate media-level access control, offer the capability to permit or deny network connectivity, control VLAN access, and apply traffic policy, based upon user or machine identity?

Radius Tacacs+ Local Authenticate database 802.1x CA Server

4.

What is NOT true regarding PW QoS?

A policy action can be applied for packets matched by DLCI. LLQ can be applied to traffic classified per COS on ethernet AC. CB-WFQ can be applied to traffic classified per COS on ethernet AC. The command `set cos' is used to modify the .1p cos bits in a policy. The command `set vlan' is used to modify the VLAN tag in a policy.

5.

Which statements are true regarding VPLS?

Each PE device emulates a bridge. The whole P-network emulates a bridge. Hierarchical VPLS (H-VPLS) reduces signaling overhead. There is no such a thing as Hierarchical VPLS (H-VPLS)

6.

When connecting two different VLAN Trunk Protocol domains together via an ISL trunk, the switches fail to form the trunk automatically. What is the likely cause?

The trunks need to be set to "on" or "nonegotiate". The VTP domain names carried in the Dynamic Inter-Switch Link (DISL) messages are not the same. The Unidirectional Link Detection timers are shorter than the Spanning Tree Protocol (STP) timers. The native VLANs are the same. The VLAN Trunk Protocol multicast address was set to 01-00-0c-cc-cc-cc.

7.

QoS Low Latency Queuing is used for:

Congestion Avoidance Congestion Management Traffic Shaping Traffic Policing

8.

What is true about the EoMPLS control word?

It is different for .1q tagged versus untagged Ethernet frames. It indicates the class of service of an EoMPLS packet. It is only used for .1q tagged packets, to convery the tag to the remote end. The first 4 bits are 0 as to not alias an IP packet. There is no such a thing as EoMPLS control word.

9.

Regarding IP Interworking between Ethernet and PPP, which statements are true?

IP Interworking between PPP-Ethernet is only supported using CHAP. PPP terminates on the PE device, and therefore the PE negotiates LCP and NCP. Specific configuration regarding IPCP is required. It is not supported.

10.

DSCP EF is equivalent to what decimal value?

26 34 46 38

Cisco CCIE Written Metro Ethernet Set 5

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Cisco CCIE Written Metro Ethernet Set 5

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