Online Access Free 642-883 Practice Test

A network engineer must provide support to a very large customer running a flat IS-IS
Level 2 network. The engineer is willing to redesign the infrastructure in a multiarea fashion due to the rapid growth of the data traffic and newly-required scaling factors. Which consideration is important when implementing the new IS-IS Level 1 areas?

• A.An IS-IS Level 1 area provides greater flexibility during the Database Descriptors exchange process.
• B.An IS-IS Level 1 area will always set a gateway pointing to a backbone router.
• C.The default behavior of an IS-IS Level 1 area is equivalent to anOSPF totally stubby area.
• D.Two IS-IS Level 1 areas divided by the backbone area require a virtual link to communicate when Level 1/Level 2 intermediate systems are missing.

A static default route has been inserted into the configuration of a Cisco IOS XE router.
Which option advertises the route into the OSPF domain?

• A.router ospf 1 network 0.0.0.0 area 0 redistribute static subnets
• B.router ospf 1 redistribute static
• C.router ospf 1 default-information originate
• D.router ospf 1 redistribute static subnets

In which network environment is IS-IS adjacency check important?

• A.in a multitopology environment where there are different instances of IS-IS running on the same router
• B.when IS-IS neighbors are in an NBMA environment like over Frame Relay
• C.when IS-IS neighbors are in a broadcast environment like an Ethernet LAN
• D.in an IPv4/IPv6 environment and running single-topology IS-IS
• E.when a level L1/L2 IS-IS router is neighboring with a Level 1 only or Level 2 only router

Refer to the exhibit.

Which Cisco IOS XE command should be added to this configuration for the BFD protocol to operate successfully?

• A.Router1(config-ospf-ar-if)#bfd fast-detectRouter2(config-ospf-ar-if)#bfd fast-detect
• B.Router1(config-router)#bfd all-interfacesRouter2(config-router)#bfd all-interfaces
• C.Router1(config- bfd)#echo-enableRouter2(config- bfd)#echo-enable
• D.Router1(config-if)#bfd echoRouter2(config-if)#bfd echo

DRAG DROP

Correct Answer:

Explanation: Matches the end of the AS Path String ---$
Matches the Start of the AS Path String ----^
Matches any single character --- .
Matched any delimiter ---- -