Which of the following statements about the multicast address used by 0SPFv3 is correct? (Multiple Choice)
A . The DR router uses FF02: :6
B . The DR router uses FF08::6
C . All OSPF routers use FF08:5
D . All OSPF routers use FF02::5
Answer: AD
The DHCP protocol can assign some TCP/IP-related parameter information to the client. In this process, DHCP defines a variety of packets. The encapsulation protocol used by these packets at the transport layer is:
The DHCP protocol can assign some TCP/IP-related parameter information to the client. In this process, DHCP defines a variety of packets. The encapsulation protocol used by these packets at the transport layer is:
A . PPP encapsulation
B . IP encapsulation
C . TCP encapsulation
D . UDP encapsulation
Answer: D
Which of the following statements about RSTP root protection is true? (Multiple Choice)
Which of the following statements about RSTP root protection is true? (Multiple Choice)
A . The root protection function on the root port will take effect
B . The port with root protection enabled will enter the error-down state after receiving the RST BDPU with higher priority
C . It is recommended to enable it on the switch at the edge of the network
D . After the port with root protection enabled receives RST BPDUs with higher priority and does not receive RST BPDUs with higher priority for a period of time, it will return to the normal forwarding state
Answer: CD
In a VXLAN scenario, which features can be enabled to reduce the flooding of ARP packets between VTEPs? (Multiple Choice)
In a VXLAN scenario, which features can be enabled to reduce the flooding of ARP packets between VTEPs? (Multiple Choice)
A . Host Information Collection
B . Local ARP proxy
C . Port isolation
D . ARP broadcast suppression
Answer: BD
Which SNMP version is recommended for management?
A medium-sized campus network manages the network through the SNMP protocol. The campus has high network security.
Which SNMP version is recommended for management?
A . SNMPv1
B . SNMPv2C
C . SNMPv3
D . All versions can be implemented
Answer: C
In BGP4+, what is the content of the next hop network address field carried by the MIP_REACH_NLRI attribute in the Update packet?
In BGP4+, what is the content of the next hop network address field carried by the MIP_REACH_NLRI attribute in the Update packet?
A . Can be just a link-local address
B . Only link-local addresses
C . Can carry link-local addresses and global unicast addresses at the same time
D . Can only be a global unicast address
Answer: C
Assuming that the BGP configuration is correct and all neighbor relationships have been established, how many routing entries exist in the BGP routing table of Client3?
As shown in the figure, Client1, Client2, and Client3 serve as clients of RR1 at the same time, and R1 introduces 10 routes.
Assuming that the BGP configuration is correct and all neighbor relationships have been established, how many routing entries exist in the BGP routing table of Client3?
A . 15
B . 10
C . 20
D . 1
Answer: B
What method can be used to reduce the risk of overflowing the the primary RR BGP routing table?
In the multi-level RR scenario, a large number of secondary RRs will be connected to the primary RR, which may cause the BGP routing table of the primary RR to overflow.
What method can be used to reduce the risk of overflowing the the primary RR BGP routing table?
A . ORF
B . Routing Control
C . Route Aggregation
D . Set the same Cluster-ID
Answer: C
After an interface of the firewall is assigned to the Untrust security zone, the interface belongs to the Untrust zone and no longer belongs to the Local zone.
After an interface of the firewall is assigned to the Untrust security zone, the interface belongs to the Untrust zone and no longer belongs to the Local zone.
A . TRUE
B . FALSE
Answer: B
OSPFv3 adopts the same route advertisement method as OSPFv2: it is advertised through the network command in the OSPFv3 area view.
OSPFv3 adopts the same route advertisement method as OSPFv2: it is advertised through the network command in the OSPFv3 area view.
A . TRUE
B . False
Answer: B