单选题You are running OSPF between two ERX Edge Routers across an OC-12c link with HDLC encapsulation. How many designated routers are present for this link?（）A0B1C2D3
单选题
You are running OSPF between two ERX Edge Routers across an OC-12c link with HDLC encapsulation. How many designated routers are present for this link?（）
A
0
B
1
C
2
D
3
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相关考题：
Beginning with software version 4－0－0.rel,how many virtual routers canbe configured on the ERX Edge Router?() A.32B.128C.256D.1000
Routers A and B are connected with a point-to-point OC-3 interface. Each routers OC-3 interface is configured for both Level 1 and Level 2. The routers are configured in different areas. How many IS-IS adjacencies exist between the two routers?（）A.0B.1C.2D.3
Which two statements are correct regarding IS－IS?() A. Routers maintain a single link-state database per area.B. Routers maintain a separate Level 1 link-state database.C. Routers maintain a separate Level 2 link-state database.D. Routers maintain a single Level 1 link-state database across multiple areas.
You are running OSPF between two ERX Edge Routers across an OC－12c link with HDLC encapsulation.How many designated routers are present for this link?() A.0B.1C.2D.3
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While troubleshooting an EIGRP routing problem you notice that one of the routers have generated a large number of SIA messages.What are two possible causes for EIGRP Stuck － In －Active routes?() A. Some quer y or reply packets are lost between the routers.B. The neighboring router starts receiving route updates from this router.C. A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link).D. Th e neighboring router stops receiving ACK packets from this router.
If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）A、A sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkB、A sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedC、A SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorD、A SHAM link is part of OSPF network of MPLS-VPN provider
Which statement is correct about an OSPF sham-link？（）A、A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.B、A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.C、A sham-link is a logical link between PE routers that carries OSPF LSAs and forwards customer traffic across it.D、A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.E、A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.
While troubleshooting an EIGRP routing problem you notice that one of the routers have generated a large number of SIA messages. What are two possible causes for EIGRP Stuck - In -Active routes?（）A、Some quer y or reply packets are lost between the routers.B、The neighboring router starts receiving route updates from this router.C、A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link).D、Th e neighboring router stops receiving ACK packets from this router.
Beginning with software version 4-0-0.rel，how many virtual routers canbe configured on the ERX Edge Router？（）A、32B、128C、256D、1000
You are running OSPF between two ERX Edge Routers across an OC-12c link with HDLC encapsulation. How many designated routers are present for this link?（）A、0B、1C、2D、3
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While troubleshooting an EIGRP routing problem you notice that one of the company routers havegenerated a large number of SIA messages. What are two possible causes for EIGRP Stuck-In-Active routes？（）A、Some query or reply packets are lost between the routersB、The neighboring router starts receiving route updates from this routerC、A failure causes traffic on a link between two neighboring routers to flow in only one direction（unidirectional link）D、The neighboring router stops receiving ACK packets from this router
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Which two statements are correct regarding IS-IS？（）A、Routers maintain a single link-state database per area.B、Routers maintain a separate Level 1 link-state database.C、Routers maintain a separate Level 2 link-state database.D、Routers maintain a single Level 1 link-state database per area.
Routers A and B are connected with a point-to-point OC-3 interface. Each router’s OC-3 interface is configured for both Level 1 and Level 2. The routers are configured in different areas.How many IS-IS adjacencies exist between the two routers？（）A、0B、1C、2D、3
Routers A and B have an OC12c and a GE link between them and are running OSPF over both of these links.Which item is correct， assuming the default JUNOS software OSPF metric calculation？（）A、There are two equal cost paths between A and BB、The GE link is the preferred path between A and BC、The OC12c link is the preferred path between A and BD、Manual metric assignment must be configured to determine the outcome.
Routers A and B have an OC12c and a GE link between them and are running OSPF over both ofthese links. Which statement is correct, assuming the default JUNOS software OSPF metric calculation?（）A、There are two equal cost paths betweena and b.B、Thege link is the preferred path betweena and b.C、The oc12c link is the preferred path betweena and b.D、Manual metric assignment must be configured to determine the outcome
单选题Routers A and B have an OC12c and a GE link between them and are running OSPF over both ofthese links. Which statement is correct, assuming the default JUNOS software OSPF metric calculation?（）AThere are two equal cost paths betweena and b.BThege link is the preferred path betweena and b.CThe oc12c link is the preferred path betweena and b.DManual metric assignment must be configured to determine the outcome
单选题Routers A and B are connected with a point-to-point OC-3 interface. Each routers OC-3 interface is configured for both Level 1 and Level 2. The routers are configured in different areas. How many IS-IS adjacencies exist between the two routers?（）A0B1C2D3
多选题If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）AA sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkBA sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedCA SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorDA SHAM link is part of OSPF network of MPLS-VPN provider
单选题Beginning with software version 4-0-0.rel，how many virtual routers canbe configured on the ERX Edge Router？（）A32B128C256D1000
单选题Which statement is correct about an OSPF sham-link？（）AA sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.BA sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.CA sham-link is a logical link between PE routers that carries OSPF LSAs and forwards customer traffic across it.DA sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.EA sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.
多选题While troubleshooting an EIGRP routing problem you notice that one of the company routers havegenerated a large number of SIA messages. What are two possible causes for EIGRP Stuck-In-Active routes？（）ASome query or reply packets are lost between the routersBThe neighboring router starts receiving route updates from this routerCA failure causes traffic on a link between two neighboring routers to flow in only one direction（unidirectional link）DThe neighboring router stops receiving ACK packets from this router
单选题Routers A and B have an OC12c and a GE link between them and are running OSPF over both of these links.Which item is correct， assuming the default JUNOS software OSPF metric calculation？（）AThere are two equal cost paths between A and BBThe GE link is the preferred path between A and BCThe OC12c link is the preferred path between A and BDManual metric assignment must be configured to determine the outcome.