多选题 What are the three components of the ISO NET address?（）
Area ID
N-selector
System ID
AS number
ISO number
MAC address
单选题 What command would you use to view an IS-IS adjacency?（）
show iso neighbor
show isis neighbor
show iso adjacency
show isis adjacency
单选题 What is the first step in BGP route selection?（）
The local router prefers the route with the shortest as-path.
The router first verifies that it has a route to the bgp Next Hop IP address.
The local router prefers the route from the peer with the lowest peer id address.
The local router prefers the route learned from an ebgp peer over a route learned from an ibgp peer.
单选题 If all OSPF routers on a broadcast network have the same OSPF priority, what parameter is used to determine the new BDR at the time of a DR failure?（）
area ID
router ID
loopback address
IP address of interface on broadcast network
单选题 Once the TCP connection is established, which message type initiates the BGP peering process?（）
Open
Active
Update
Keepalive
Notification
单选题 How often are IS-IS Hello packets transmitted?（）
3 seconds for DIS; 9 seconds for non-DIS
9 seconds for DIS; 3 seconds for non-DIS
10 seconds for DIS; 3 seconds for non-DIS
10 seconds for all routers
单选题 What type of OSPF router is responsible for redistributing routes into OSPF?（）
ABR
ASBR
internal router
backbone router
单选题 Which CLI command is used to see the current OSPF link-state database?（）
show ospf database
show ospf neighbor
show protocols ospf
show ospf link-state
单选题 How do you enable interface fe-0/0/0 under the [edit protocols isis] level to form both a Level 1 and Level 2 adjacency?（）
set interface fe-0/0/0.0
set interface fe-0/0/0.0 all level
set interface fe-0/0/0.0 level 3 enable
set interface fe-0/0/0.0 level 1 level 2
单选题 Two Level 2 routers are exchanging Hello packets with different Area IDs. What occurs between these routers?（）
An Adjacency forms.
An Adjacency does not form.
An Adjacency forms but traffic is not forwarded.
No IS-IS PDUs are sent.
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