OSPF& IPSERVICE

When OSPF learns multiple paths to a network, how does it select a route?

• It multiple the active K value by 256 to calculate the route with the lowest metric.

• For each existing interface, it adds the metric from the source router to the destination to calculate the route with the lowest bandwidth

• It divides a reference bandwidth of 100 Mbps by the actual bandwidth of the existing interface to calculate the router with the lowest cost.

• It count the umber of hops between the source router and the destination to determine the router with the lowest metric

• It selects RIP route because it has the longest prefix inclusive of the destination address

• It chooses the EIGRP route because it has the lowest administrative distance

• It load-balances traffic between all three routes

• It chooses the OSPF route because it has the longest prefix inclusive of the destination address

A user configured OSPF in a single area between two routers A serial interface connecting R1 and R2 is running encapsulation PPP.By default which

OSPF network type is seen on this interface when the user types show ip ospf interface on R1 or R2?

• port-to-multipoint

• broadcast

• point-to-point

• non-broadcast

which two minimum parameters must be configured on an active interface to enable OSPFv2 to operate?(choose two)

• IPv6 address

• OSPF process ID

• OSPF MD5 authentication key

• OSPF stub flag

• OSPF area

Refer to the exhibit. What does router R1 use as its OSPF router-ID?

• 10.10.1.10

• 10.10.10.20

• 172.16.15.10

• 192.168.0.1

R1 has learned route 192.168.12.0/24 via IS-IS, OSPF, RIP and Internal EIGRP Under normal operating conditions, which routing protocol is installed in

the routing table?

• IS-IS

• RIP

• Internal EIGRP

• OSPF

An engineer configured an OSPF neighbor as a designated router. Which state verifies the designated router is in the proper mode?

• Exchange

• 2-way

• Full

• Init

An engineer is configuring NAT to translate the source subnet of 10.10.0.0/24 to any of three addresses 192.168.30.1, 192.168.3.2, 192.168.3.3 . Which

configuration should be used?

• enable

  configure terminal

  ip nat pool mypool 192.168.3.1 192.168.3.3 prefix-length 30

  route-map permit 10.10.0.0 255.255.255.0

  ip nat outside destination list 1 pool mypool

  ip nat inside

  interface g1/2

  ip nat outside

• enable

  configure terminal

  ip nat pool mypool 192.168.3.1 192.168.3.3 prefix-length 30

  access-list 1 permit 10.10.0.0 0.0.0.255

  ip nat outside destination list 1 pool mypool

  interface g1/1

  ip nat inside

  interface g1/2

  ip nat outside

• enable

  configure terminal

  ip nat pool mypool 192.168.3.1 192.168.3.3 prefix-length 30

  access-list 1 permit 10.10.0.0 0.0.0.255

  ip nat inside source list 1 pool mypool

  interface g1/1

  ip nat inside

  interface g1/2

  ip nat outside

which command must be entered when a device is configured as an NTP server?

• ntp master

• ntp sever

• ntp authenticate

• ntp peer

which function does the range of private IPv4 addresses perform

• allow multiple companies to each use the same address without conflicts

• provides a direct connection for hosts from outside of the enterprise network

• ensures that NAT is not required to reach the internet with private range addressing

• enable secure communications to the internet for all external hosts