The port-based VLAN ID of the switch takes the value. If the switch receives an untagged frame, the value of the VLAN ID depends on the value.
A. BPDU
B. AVID
C. MAC mapping table
D. IP address
Which of the following options does the IP address use to distinguish between the network part and the host part?
A. Mask
B. Unicast
C. Broadcast
D. MAC address
Which of the following statements about the distance vector algorithm are wrong? (multiple choice)
A. Distance vector algorithm does not generate routing loop problems
B. The routing protocol using the distance vector algorithm is implemented by passing routing information.
C. The distance vector representation of the routing information is (target network, cost)
D. The router running the distance vector protocol only gets information from its neighbors.
The correct statement about static routing is ()?
A. Static routes are manually added to the routing table, not dynamically updated by the routing protocol.
B. Static routing is the route that the router sets before leaving the factory.
C. Static routes are always recalculated when the network changes
D. Static routes are learned after learning through other routing protocols.
The router sends the ICMP() message to the host, letting the host know that the datagram should be sent to another router next time.
A. Redirect
B. Timestamp response
C. Router inquiry
D. The destination station is unreachable
Stateful Inspection Firewall Firewall dynamically determines the flow of packets by detecting connection status based on TCP/UDP connections and application layer protocol information, and monitoring connection-based application layer protocol status.
A. True
B. False
If the IP address 10.110.53. and 10.110.127.2 44 are on the same network segment, what are the mask lengths? (multiple choice)
A. 16
B. 17
C. 18
D. 19
Regarding FTP, what are the following statements correct?
A. FTP is a UDP-based protocol
B. FTP is designed for low-rate file transfer
C. FTP can provide control of the login name and password of the FTP user.
D. The router can support two working modes: FTP Client and FTP Server.
The RTA uses the Ethernet0/0 interface to connect to a LAN. The IP address of the port is 10.1.1.251 and the network mask is 255.255.255.0. It is required to create a virtual router on the RTA with ID 1 and virtual IP address 10.1.1.254. Which of the following is correct?
A. [RTA-Ethernet0/0]vrrp vrid 1 virtual-ip 10.1.1.254
B. [RTA]vrrp vrid 1 virtual-ip 10.1.1.254
C. [RTA-Ethernet0/0]vrrp vrid 1 virtual-ip 10.1.1.254 mask 255.255.255.0
D. [RTA]vrrp vrid 1 virtual-ip 10.1.1.254 mask 255.255.255.0
Regarding the TTL field of the IP packet header, what are the following statements correct? (multiple choice)
A. The maximum possible value of TTL is 65535
B. Under normal circumstances, the router should not receive packets with TTL=0 from the interface.
C. TTL is mainly to prevent the cyclic forwarding of IP packets in the network, wasting network bandwidth.
D. Each time a IP packet passes through a network device, including Hub, LAN SWITCH, and router, the TTL value is subtracted from a certain value.
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