Cisco CCIE Written Metro Ethernet Set 4

1.

What is true regarding PAgP and LACP?

PAgP is Cisco proprietary and LACP is IEEE standard. PAgP is Cisco proprietary and LACP is ITU standard PAgP is ITU standard and LACP is Cisco proprietary. PAgP is IEEE standard and LACP is Cisco proprietary. None of the above.

2.

What is true about the DLCI field in the Frame Relay header?

It consists of two portions, source and destination, which map data to a logical channel. It generally has significance only between the local switch and the DTE device. It is an optional field in the ITU-T specification. It is present only in data frames sent through the network.

3.

Telcordia has defined national ISDN, which is basically within the construct of Q.931 protocol with some modifications. If National ISDN requires a new information element (IE), how will this need be handled?

No new IE can be defined by standard bodies other than ITU-T; therefore, Telcordia must pass the
information in open fields of
existing IE. Telcorida has to define a new codeset (CS) 0 IE. Telcordia should define a new CS7 IE Telcordia should define a new CS5 IE Use CS8 IE

4.

In BGP, why should a Route Reflector be used?

To overcome issues of split-horizon within BGP To reduce the number of External BGP peers by allowing updates to 'reflect' without the need to be fullymeshed To allow the router to 'reflect' updates from one Internal BGP speaker to another without the need to be fullymeshed To divide Autonomous Systems into mini-Autonomous Systems, allowing the reduction in the number ofpeers None of the above

5.

For the spanning tree algorithm, a bridge builds part of its forwarding table based on:

Destination MAC addresses 802.2 headers Source MAC addresses The Ethernet type field The SNAP field

6.

What VC Type does IP Interworking use?

11 - IP Layer2 Transport 0 - No VC Type for IP 5 - Ethernet 0x8003 - IP Layer2 Transport None of the above

7.

QoS Low Latency Queuing is used for:

Congestion Avoidance Congestion Management Traffic Shaping Traffic Policing

8.

The command Rip v2 broadcast is used:

To allow rip v2 broadcasts to be be sent as broadcast packets instead of multicast packets To send RIP broadcasts as unicast packets instead of multicast packets To suppress rip v1 broadcasts Both a and c

9.

What feature can be set to prevent local users from starting password recovery?

line con 0
no password enable aaa per console line con 0no login no service password-recovery There is no way to prevent password recovery

10.

OSPF is defined on a Frame Relay interface providing point-to-multipoint connections. The remote neighbors can reach this central site, but are complaining of routing failures between each of the remote sites. The central
router has all the routes for each remote site. Based on this information, what can be diagnosed as the biggest potential problem?

An over-subscribed Frame Relay switch will cause some packet loss. There are problems in the use of OSPF Authentication. There is an incorrect selection of the Designated Router. There is an incorrect DLCI assigned on a point-to-point sub-interface.

Cisco CCIE Written Metro Ethernet Set 4

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Cisco CCIE Written Metro Ethernet Set 4

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