Which statement is true about routing tables on a Junos device?（）A、They purge any routes not selected as active routes.B、They exist in two places: the Routing Engine and the Packet Forwarding Engine.C、They are exclusively designed to handle dynamic routin

第1题：

pany has a Catalyst 6500 and you need to configure redundancy between the supervisor  modules. With route processor redundancy （RPR+）， the redundant supervisor engine is fully initialized and configured， which shortens the switchover time if the active supervisor engine fails.   Which three statements are true about the RPR + operations when the redundant supervisor  engine switched over the failed primary supervisor engine？ （）

• A、 Static IP routes are maintained across a switchover because they are configured from entries in  the configuration file.
• B、 Information about dynamic routing states， maintained on the active supervisor engine， is  synchronized to the redundant supervisor engine and is transferred during the switchover.
• C、 Information about dynamic routing states， maintained on the active supervisor engine， is not  synchronized to the redundant supervisor engine and is lost on switchover.
• D、 The Forwarding Information Base （FIB） tables are cleared on a switchover. As a result， routed  traffic is interrupted until route tables reconverge.
• E、 Static IP routes are cleared across a switchover and recreated from entries in the configuration  file on the redundant supervisor engine.
• F、 The Forwarding Information Base （FIB） tables are maintained during the switchover. As a  result， routed traffic continues without any interruption when the failover occurs.

第2题：

Which statement is true about a forwarding table?（）

• A、It stores a subset of information from the routing table.
• B、It contains routes learned from all protocols to a destination.
• C、It provides a database for routes selected and placed into the routing table.
• D、Every routing protocol maintains its own forwarding table.

第3题：

Which two statements describe the forwarding table in the Junos OS?（）

• A、The forwarding table contains all known routes.
• B、The forwarding table stores a subset of information from the routing table.
• C、Junos devices use the forwarding table to compare incoming packets against existing entries to determine the next hop.
• D、If multiple matches exist, the forwarding table uses the least-specific entry to forward packets toward the destination.

第4题：

Which two statements are true about terms in a routing policy?（）

• A、A routing policy cannot have more than one term.
• B、If a term does not contain a from statement, all routes match.
• C、If a term does not contain a from statement, the Junos OS will not commit.
• D、A then statement is not mandatory in a term.

第5题：

Which two statements are true about static routes in the Junos OS?（）

• A、Static routes are defined at the [edit routing-instances] hierarchy.
• B、Static routes must have a next hop defined.
• C、Static routes remain in the routing table until you remove them or until they become inactive.
• D、Static routes are learned by neighboring devices and added to their routing tables.

第6题：

For which two functions is the Routing Engine responsible?（）

• A、packet forwarding
• B、queuing functions
• C、routing protocol control
• D、JUNOS software operation

第7题：

By default, which two statements are true about export routing policies?（）

• A、Export policies can evaluate only active routes.
• B、Export policies can evaluate all routes.
• C、Export policies can be applied to the forwarding table.
• D、Export policies can be applied directly to interfaces

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第13题：

Which statement is true regarding the forwarding plane?（）

• A、The forwarding plane is contained within the Routing Engine (RE)
• B、The forwarding plane processes and evaluates exception traffic
• C、The forwarding plane contains the Packet Forwarding Engine (PFE)
• D、The forwarding plane is not present on all platforms running the Junos OS

第14题：

Which statement is true about the routing table?（）

• A、The routing table exists in the control plane only
• B、The routing table exists in the control plane and the forwarding plane
• C、The routing table contains both active and inactive routes
• D、The routing table is stored on compact flash

第15题：

Which statement is correct about policies in the Junos OS?（）

• A、Import policies are used to filter routes from the routing table to the forwarding table.
• B、Import policies are used to filter routes destined for the routing table.
• C、Import policies are used to filter routes being sent to neighboring devices.
• D、Import policies are used to filter traffic entering the device.

第16题：

Company has a Catalyst 6500 and you need to configure redundancy between the supervisormodules. With route processor redundancy （RPR+）， the redundant supervisor engine is fullyinitialized and configured， which shortens the switchover time if the active supervisor engine fails.Which three statements are true about the RPR + operations when the redundant supervisorengine switched over the failed primary supervisor engine？（）

• A、Static IP routes are maintained across a switchover because they are configured from entries inthe configuration file
• B、Information about dynamic routing states， maintained on the active supervisor engine， issynchronized to the redundant supervisor engine and is transferred during the switchover
• C、Information about dynamic routing states， maintained on the active supervisor engine， is notsynchronized to the redundant supervisor engine and is lost on switchover
• D、The Forwarding Information Base （FIB） tables are cleared on a switchover. As a result， routedtraffic is interrupted until route tables reconverge
• E、Static IP routes are cleared across a switchover and recreated from entries in the configurationfile on the redundant supervisor engine
• F、The Forwarding Information Base （FIB） tables are maintained during the switchover. As aresult， routed traffic continues without any interruption when the failover occurs

第17题：

Which two statements are correct about routing tables in JUNOS?（）

• A、There are separate tables for IPv4 and IPv6 called inet.0 and inet6.0 respectively.
• B、They only contain the best possible route to each destination.
• C、All running protocols can populate the routing tables at the same time.
• D、Routes with the highest preference value are placed as active routes in the routing table.

第18题：

Which statement is true about the routing table?（）

• A、The routing table exists in the control plane only.
• B、The routing table exists in the control plane and in the forwarding plane.
• C、The routing table contains both active and inactive routes.
• D、The routing table is stored on compact flash.

第19题：

Which statement is correct about policies in the Junos OS?（）

• A、Export policies are used to filter routes from the RE forwarding table to the PFE forwarding table.
• B、Export policies are used to filter routes destined for the routing table.
• C、Export policies are used to filter routes being sent to neighboring devices.
• D、Export policies are used to filter traffic leaving the device.

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