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 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 By default, which command can be used to display information about packets that have been logged with the syslog firewall filter action?()
show log
show firewall
show log messages
show firewall log
多选题 What are two ways that a valid IBGP peering session can be configured?()
via the accept x.x/y command
via TCP reachable physical interface addresses
via remote loopbacks with the local-address command
via UDP with the neighbor x.x.x.x command at the group level
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
多选题 Firewall filters can be used to accept, discard, or reject packets based on ()
protocol type
MAC address
TCP or UDP port
source and destination IP address
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.
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 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 Three IS-IS routers on a broadcast segment have different priority values configured. Which router is elected the DIS on that broadcast segment?()
the router with the lowest priority
the router with the highest priority
the router with the highest System ID
the router with the highest IP address