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14-06-2003, 01:20 AM
Em có một số câu hỏi sau, nhờ các anh chị giải đáp dùm. Em xin cám ơn.
1.Which two operational modes of OSPF over NBMA are considered to be RFC- compliant? (Choose two)
A. Hub and spoke
B. Point- to- multipoint nonbroadcast
C. Broadcast
D. Point- to- multipoint
E. Nonbroadcast multiaccess
F. Point- to- point
2.Router R1 uses a subnet mask 255.255.255.0 and sits on the boundary of area 0 and area 1. Given the
following router in configuration:
Router OSPF 76
Network 172.12.32.0 0.0.15.255 area 1.
Network 172.12.96.0 0.0.15.255 area 0.
Area 0 range 172.12.96.0 255.255.224.0
Area 1 range 172.12.32.0 255.255.224.0
Which three statements are true? (Choose three)
A. An interface on this router with IP address 172.12.32.124 is an area 1.
B. An effect of the fourth line is to reduce the number of route table entries.
C. All networks within a range of 172.12.64.0 to 172.12.95.0 will be summarized from area 0 into area1.
D. All networks within the range of 172.12.32.0 to 172.12.63.0 will be summarized from area 1 into
area 0.
E. Area 0 can act as a stub or transit area for routes including networks in the range 172.12.96.0 to
255.255.224.0.
3.You have configured policy- based routing on interface serial 0. Given the configuration:
Interface serial 0
IP policy route- map demo
Route- map demo permit 10
Match IP address 4
Set interface serial 2 serial 3
Access list 4 permit 10.3.3.2 0.0.0.0.
Which statement about a packet arriving on serial 0 is MOST correct?
A.If the packets were sourced from 10.3.3.2, it is a candidate for fast- switch policy routing.
B.If the packet was sourced from 10.3.3.2, it will be routed out interface serial 2 and interface serial 3
in a load- sharing fashion.
C. If the packet was destined for 10.3.3.2, it will be routed out interface serial 2 and interface serial 3 in
a load- sharing fashion.
D. If the packet was sourced from 10.3.3.2, it will be routed out interface serial 2. If interface serial 2 is
not up, the packet will be routed out interface serial 3.
4.Which two statements are true about a router running BGP with all the default settings? (Choose two)
A. It will not run an IGP.
B. It will always use a route learned by IBGP.
C. It will not use a route learned by IBGP, unless that route is learned from an IGP.
D. It will not advertise a route learned by IBGP to an external neighbor, unless that route is learned
from an IGP.
E. It will always advertise a route learned by IBGP to an external neighbour, once connectivity to the
external neighbour has been established.
5.Which method of sending route information into BGP routing protocol is not recommended?
A. Using the null 0 interface.
B. Using the network command.
C. Redistributing static routes into BGP.
D. Redistributing dynamic routes into the BGP.
E. Using the redistribute BGP command.
F. Changing the administrative distance of the routes.
6.The quantity of information contained in a routing update can be changed by implementing a route filter
(distribute list). Which two statements about distribute list are true? (Choose two)
A. Distribute list are applied to interfaces or to routing processes.
B. If no match is found in the access list, the routing update is dropped.
C. Distribute list are capable of changing the attributes of a received route.
D. A distribute list consist of a standard or extended access list that has an “implicit deny any” statement
at the end.
1.Which two operational modes of OSPF over NBMA are considered to be RFC- compliant? (Choose two)
A. Hub and spoke
B. Point- to- multipoint nonbroadcast
C. Broadcast
D. Point- to- multipoint
E. Nonbroadcast multiaccess
F. Point- to- point
2.Router R1 uses a subnet mask 255.255.255.0 and sits on the boundary of area 0 and area 1. Given the
following router in configuration:
Router OSPF 76
Network 172.12.32.0 0.0.15.255 area 1.
Network 172.12.96.0 0.0.15.255 area 0.
Area 0 range 172.12.96.0 255.255.224.0
Area 1 range 172.12.32.0 255.255.224.0
Which three statements are true? (Choose three)
A. An interface on this router with IP address 172.12.32.124 is an area 1.
B. An effect of the fourth line is to reduce the number of route table entries.
C. All networks within a range of 172.12.64.0 to 172.12.95.0 will be summarized from area 0 into area1.
D. All networks within the range of 172.12.32.0 to 172.12.63.0 will be summarized from area 1 into
area 0.
E. Area 0 can act as a stub or transit area for routes including networks in the range 172.12.96.0 to
255.255.224.0.
3.You have configured policy- based routing on interface serial 0. Given the configuration:
Interface serial 0
IP policy route- map demo
Route- map demo permit 10
Match IP address 4
Set interface serial 2 serial 3
Access list 4 permit 10.3.3.2 0.0.0.0.
Which statement about a packet arriving on serial 0 is MOST correct?
A.If the packets were sourced from 10.3.3.2, it is a candidate for fast- switch policy routing.
B.If the packet was sourced from 10.3.3.2, it will be routed out interface serial 2 and interface serial 3
in a load- sharing fashion.
C. If the packet was destined for 10.3.3.2, it will be routed out interface serial 2 and interface serial 3 in
a load- sharing fashion.
D. If the packet was sourced from 10.3.3.2, it will be routed out interface serial 2. If interface serial 2 is
not up, the packet will be routed out interface serial 3.
4.Which two statements are true about a router running BGP with all the default settings? (Choose two)
A. It will not run an IGP.
B. It will always use a route learned by IBGP.
C. It will not use a route learned by IBGP, unless that route is learned from an IGP.
D. It will not advertise a route learned by IBGP to an external neighbor, unless that route is learned
from an IGP.
E. It will always advertise a route learned by IBGP to an external neighbour, once connectivity to the
external neighbour has been established.
5.Which method of sending route information into BGP routing protocol is not recommended?
A. Using the null 0 interface.
B. Using the network command.
C. Redistributing static routes into BGP.
D. Redistributing dynamic routes into the BGP.
E. Using the redistribute BGP command.
F. Changing the administrative distance of the routes.
6.The quantity of information contained in a routing update can be changed by implementing a route filter
(distribute list). Which two statements about distribute list are true? (Choose two)
A. Distribute list are applied to interfaces or to routing processes.
B. If no match is found in the access list, the routing update is dropped.
C. Distribute list are capable of changing the attributes of a received route.
D. A distribute list consist of a standard or extended access list that has an “implicit deny any” statement
at the end.