Which keyword is used with the debug ipv6 [keyword] command to troubleshoot neighbor discovery problems？（）

A.ALTER

B.CREATE

C.UPDATE

D.INSERT

A.paths

B.accepted-routes

C.advertised-routes

D.routes

A.policy-rematch

B. policy-evaluate

C. rematch-policy

D. evaluate-policy

A. help topic

B. help reference

C. help apropos

D. help tip

A. Layer 2 managed switch

B. DHCP server

C. Hardware firewall

D. Bridge

A.Group functions on columns ignore NULL values.

B.Group functions on columns returning dates include NULL values.

C.Group functions on columns returning numbers include NULL values.

D.Group functions on columns cannot be accurately used on columns that contain NULL values.

E.Group functions on columns include NULL values in calculations if you use the keyword INC_NULLS.

configuration mode: area 4 stub.Which two things need to be done to finish making area 4 a totally stubby area？（）

A. Apply the area 4 stub command to all routers in the area

B. On the ABR, use the area 4 stub command with the no - summary keyword

C. On the ABR, specify a default cost for the area with the area default - cost command

D. On the ABR, use the default - information originate command to inject a default route into area 4

E. Use the auto - cost command on each router in the area to automatically determine the cost to other OSPF areas

PF database. Which two options a re valid checks that should be performed first to verify proper OSPF operation？（）

A. Are the ASBRs trying to redistribute the external routes into a totally stubby area？

B. Are the ABRs configured with stubby areas？

C. Is the subnets keyword being used with the redistribution command？

D. Is backbone area (area 0) contiguous？

E. Is the CPU utilization of the routers high？

ter R1 does not receive a default route to router R2 as in tended. Which configuration change would ensure that R1 would receive a default route from R2？ （）

A. Add the area 1 stub command on routers R1.

B. Add the always keyword to the default - information originate configuration command on router R2.

C. Remov e the default information originate configuration command from router R2 and place it on router R1.

D. Add the ip route 5.0.0.0 255.255.255.0 0.0.0.0 command to router R2.

Which group does NOT use posters frequently？

A: advertisers

B: journalists

C: protestors

D: propagandists