Which one of the following can be configured on an AP to provide differentiated network services for users?
AVAP
BWAP
CVT
DVAC
Which of the following descriptions regarding the TTL field of the IP packet is correct?
AThe TTL defines how many packets the source can send.
BThe TTL value will increment by 1 each time the packet is routed.
CThe TTL defines the duration during which the source can send packets.
DThe TTL value will decrement by 1 each time the packet is routed.
What is the protocol of RA (Router Advertisement) packet which is used in IPv6 stateless address auto-configuration?
AIGMPv6
BICMPv6
CTCPv6
DUDPv6
The country code configuration affects the actual transmission frequency and maximum transmission power.
ATrue
BFalse
Which of the following packets are exchanged between STAs and an AP to obtain the AP’s SSID before association with the AP? (Choose all that apply.)
AProbe Request
BDiscovery
CBeacon
DProbe Response
Which of the following statements about the "S" field in the MPLS packet header are true? (Choose all that apply.)
AThe field indicates whether there are other labels behind the current label. 1: Yes; 0: No.
BThe "S' field is 1 bit long in frame mode and 2 bits long in cell mode.
CThe field indicates whether there are other labels behind the current label. 0: Yes; 1: No.
DThe "S" field exists in each MPLS packet header.
Which of the following statements are true about the OSPF neighbor status? (Choose all that apply.)
AThe master/slave relationship of OSPF is formed in the ExStart state.
BAfter LSDB synchronization is completed, the router state changes to Full.
CThe sequence number of DD packets is determined in the Exchange state.
DIn the Exchange state, routers send DD packets that briefly describe link state information to each other to describe the content of the local link state database (LSDB).
In RSTP, a backup port can replace a faulty root port.
ATrue
BFalse
Which of the following port status may exist on an STP-enabled switch? Select 1
AForwarding
BListening
CDiscarding
DDisabled
Which of the following statements about the routing table show in the figure are true?
AThe next hop in the route to the destination network 10.0.3.3/32 is not directly connected. Therefore, the local router does not forward data packets destined for 10.0.3.3.
BThe local router forwards data packets destined for 10.0.3.3 from Ethernet0/0/0.
CThe local router forwards data packets destined for 10.0.2.2 from Erthernet0/0/0.
DThe local router forwards data packets destined for 10.0.12.1 from Ethernet0/0/0.
SDN requires the control and forwarding planes to be separated.
ATrue
BFalse
Which type of packets does a DHCP server send to confirm that a host can use the obtained IP address?
ADHCP Request packet
BDHCP Discover packet
CDHCP Offer packet
DDHCP ACK packet
In the LCP negotiation phase of the PPP protocol, which of the following packets is sent if all the parameters sent by the peer end are accepted?
AConfigure-Request
BConfigure-Nak
CConfigure-Ack
DConfigure-Reject
The following configuration commands implement route backup on RTA for a route to the same destination 10.1.1.0.
[RTA]ip route-static 10.1.1.0 24 12.1.1.1 permanent
[RTA]ip route-static 10.1.1.0 24 13.1.1.1
ATrue
BFalse
On the network shown in the figure, router A adopts link aggregation in manual load balancing mode, and G0/0/1 and G0/0/2 are added to link aggregation group (LAG) 1.
Which of the following statements is false about Eth-Trunk 1 on router A?
AIf only G0/0/2 on router B is disabled, Eth-Trunk 1 is Up.
BIf both G0/0/1 and G0/0/2 on router B are disabled, Eth-Trunk 1 is Down.
CIf only G0/0/1 on router B is disabled, Eth-Trunk 1 is Up.
DIf both G0/0/1 and GO/O/2 on router B are disabled, Eth-Trunk 1 is Up.
The administrator wishes to change name of the router. Under which view should the administrator be in order to achieve this?
ASystem-view.
BUser-view.
CInterface-view.
DProtocol-view.
Which of the following commands can be used to view only static routes on the VRP?
Adisplay ip routing-table
Bdisplay ip routing-table protocol static
Cdisplay ip routing-table statistics
Ddisplay ip routing-table verbose
When two switches are connected through link aggregation, what are the requirements for the interfaces on the two switches? (Choose all that apply.)
AThe physical interface rates of the interconnected switches are the same.
BThe physical interface IDs of the interconnected switches are the same.
CThe duplex modes of the physical interfaces on the interconnected switches are the same.
DThe physical interface quantities of the interconnected switches are the same.
EThe models of the optical modules used by the interconnected switches are the same.
