Cisco CCIE Service Provider Optical Recertification Set 7

1.

Where is the administrative unit pointer found in the STM-1 signal in SDH?

Path Overhead Regenerator Section Overhead Multiplexer Section Overhead Line overhead

2.

In Frame Relay, the BECN bit is set by:

The Frame Relay network, to inform the DTE receiving the frame that congestion was experienced in the
path from source to destination The Frame Relay network, in frames traveling in the opposite direction from those frames that encounteredcongestion The receiving DTE, to inform the Frame Relay network that it is overloaded and that the switch shouldthrottle back The sending DTE, to inform the Frame Relay network that it is overloaded and that the switch should throttleback Any device that uses an extended DLCI address

3.

What significant value to VSANs contribute?

VSANs are a logical segmentation of a physical switch into logical fabrics that allow customers to
consolidate SAN islands. VSANs are physical segmentations in a logical switch fabric that allow customers to create separate SANislands. VSANs are a logical segmentation of a physical fabric into Arbitrated loop topologies. VSANs are physical boundaries between blades on the MDS.

4.

For Dispersion Shifted Fiber (DSF), the zero-dispersion wavelength generally occurs in the range:

850 to 1100nm 1300 to 1400nm 1400 to 1500nm 1500 to 1600nm

5.

When using IS-IS for IP routing, Dual IS-IS defined by RFC 1195, what is true? (multiple answer)

It is necessary to configure a NSAP address. It is not possible to perform both IP and CLNS routing wih the same process. IP address and subnet information is carried in the TLV field on the L-1/L-1 LSPs. Dual IS-IS does not support VLSM information.

6.

What is the usual procedure taken if an unrecognized non-mandatory ISDN IE is received by a network?

Final handle the call Final handle the call if 2 such IE is received Ignore only if the IE received is not CS0, otherwise final handle the call Send a Facility msg to the user notifying the user of sending unknown IEs but don't final handle Ignore the IEs

7.

What describes a technique, used to encapsulate voice (NOT data) over ATM?

RFC 1483 LANE AAL-1 RFC 1577

8.

In SDH, what is the meaning of S-16.1 defining an interface?

S-16 for STM-16, 1 for Short Haul S for Short Haul, 16 for STM-16, 1 for 1-port card S for Short Haul, 16 for STM-16, 1 for 1310 nm S for Short Haul, 16 for STM-16, 1 for 1st port on card

9.

A router is receiving updates for a subnet from different routing protocols. The administrator wishes to take advantage of a path via a route with a less favorable Administrative Distance. What can be done to effect this
without losing any of the updates?

Configure a static route with an Administrative Distance of 120 Use the Router Configuration mode command distance with an appropriate 'weight' for this subnet Create a distribute-list to block this subnet Modify the default-metric weight of the routing protocol offering the more favorable Administrative Distance

10.

If two routers connected to the same Ethernet are configured to run HSRP (Hot Standby Router Protocol) in the same group number, which router's MAC address will be associated with the virtual IP address?

It depends on which router is active. Neither - a virtual MAC address will be assigned based on the group number, unless the routers areconfigured to use their burned in addresses (BIA). The routers will negotiate and decide automatically which MAC address to use based on the routers' IDs. Both routers' MAC addresses will be associated with the virtual IP address. Neither - the hosts will broadcast all traffic which needs to travel off-segment.

Cisco CCIE Service Provider Optical Recertification Set 7

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Cisco CCIE Service Provider Optical Recertification Set 7

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