Which of the following statements are true about the packet filtering firewall?
Which of the following statements about the forwarding plane of a switch is false?
A large number of external routes are imported to an NSSA of an enterprise ' s OSPF network. The customer requires that the number of LSAs in non-special areas be reduced. To meet this requirement, route summarization can be configured on an ABR in the NSSA to summarize the routes corresponding to the Type 5 LSAs translated from Type 7 LSAs.
Which of the following statements regarding the BGP error display of a router false?
BGP routes have multiple path attributes. When a router advertises a BGP route to its peers, the route carries multiple path attributes. These attributes describe the characteristics of the BGP route and affect route selection in some scenarios. The attribute is Huawei-specific. It is valid only on the local device and is not transmitted to BGP peers. (Enter the attribute name in lowercase as it appears in the command output about the BGP routing table.)
If the interval for two consecutive packets of a TCP session reaching the firewall is longer than the aging time of the session, the firewall deletes the session information from the session table to ensure network security.
Multicast devices do not independently maintain unicast routing information on the network. The devices must perform RPF checks on the received packets according to the unicast routing information on the network before creating PIM routing entries. If there is no unicast route to a specific destination, the RPF check fails.
R1, R2, R3, and R4 run IS-IS, and the DIS priorities of their interfaces are shown in the following figure. If all these devices are started simultaneously, will be elected as the DIS. (Enter the device name, for example, R1.)
On a campus network, ISIS runs on all devices. Detailed LSDB information displayed on one of the devices is as follows:
Which of the following statements are true based on the command output?
TESTED 20 Aug 2026
