单选题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 rou

第1题：

第2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3题：

第4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5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6题：

第7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8题：

第9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10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.