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NEW QUESTION # 18
Regarding the route-policy set-cost configuration below, which of the following statements is true?
- A. The route 11.1.0.0/16 will continue to match node 20 after permitted by node 10, and (he final cost is set to 200.
- B. The cost of all routes is set to 200.
- C. The route 11.1.0.0/16 is permitted by node 10, and its tost Is set to 300.
- D. All the routes that are not permitted by node 10 will be denied.
Answer: C
NEW QUESTION # 19
Which of the following statements regarding the LSA age field are true?
- A. The unit of this field is seconds. In a LSDB, the LS age of a LSA decreases with time.
- B. The unit of this field is seconds. In a LSDB, the LS age of a LSA increases with time.
- C. If the LS age of a LSA has reached the LSRefreshTime (30 minutes), the originator of this LSA needs to regenerate an instance of this LSA again.
- D. If the LS age of a LSA has reached the LSRefreshTime (30 minutes), any router can regenerate an instance of this LSA again.
Answer: A
NEW QUESTION # 20
Which of the following attribute must be carried in an Update message?
- A. MED
- B. AS-Path
- C. Local-pref
- D. Prefval
Answer: C
NEW QUESTION # 21
As shown in the following figure, a new AP is deployed In dual link MSB networking (load balancing mode).
Which AC will the connect to?
- A. Random access
- B. AC2
- C. AC1
- D. None
Answer: D
NEW QUESTION # 22
Which of the following statements is false, based on the following IGMP information on an interface of RTA?
- A. The interval for sending group-specific Query messages is 60s.
- B. The maximum time for response to Query messages is 10s.
- C. The IP address of the interface is 192.168.1.1.
- D. The IGMP version is IGMPV2.
Answer: B
NEW QUESTION # 23
BFD control packets are encapsulated in UDP packets for transmission. What is the destination port number of multi-hop BFD control packets?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 24
Four routers run ISIS and have established adjacencies. The area IDs and router levels are marked in the following figure. If route leaking is configured on R3, which of the following is the cost of the route from R4 to 10.0.2.2/32?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 25
A monitoring plane usually comprises the monitoring units of main control boards and interface boards. This plane can monitor the system environment independently. Which of the following environment monitoring functions can be provided by the monitoring plane?
- A. Fan control
- B. System power-on and power-off control
- C. Voltage monitoring
- D. Temperature monitoring
Answer: D
NEW QUESTION # 26
A local router runs IS-IS and its command output is shown in the following figure. Which of the following statements is true?
- A. The cost of S4/0/0 is 20.
- B. S4/0/0 supports IPv6.
- C. S4/0/0 sends IIH packets at the interval of 30s.
- D. The circuit level of S4/0/0 is Level-1.
Answer: C
NEW QUESTION # 27
Which of the following statements regarding the summary automatic command and BGP route summarization is false?
- A. This command enables automatic summarization for the locally imported routes
- B. This command is used to implement automatic summarization. Automatic summarization takes precedence over manual summarization
- C. After this command is configured, BGP summarizes routes based on natural network segments
- D. After this command is configured, BGP sends only the summarized routes to peers
Answer: C
NEW QUESTION # 28
Which of the following statement regarding the display ospf peer command output is true?
- A. Through negotiation during DD packet exchange, the local end becomes the slave.
- B. The DR address is 10.1.1.1
- C. Address: 10.1,1.1 Indicates that the local interface address is 10.1.1.1.
- D. Router ID indicates that the local router ID Is 10.1.1.1.
Answer: C
NEW QUESTION # 29
Which of the following statements regarding OSPF route summarization is false?
- A. Any router in OSPF can summarize routes.
- B. Route summarization can reduce routing information, decrease the routing table size, and improve router performance.
- C. Route summarization is the process of summarizing routes with the same prefix into one route and then advertising only the summarized route to other areas.
- D. OSPF supports two route summarization modes: ABR summarization and ASBR summarization.
Answer: B
NEW QUESTION # 30
Which of the following statements regarding IGMPv1 and IGMPv2 are true?
- A. 1GMPv2 supports only general query.
- B. 1GMPv2 defines the Leave message type.
- C. IGMPv1 supports general query.
- D. IGMPv1 does not define the IGMP Leave message type.
Answer: C
NEW QUESTION # 31
Which of the following statements regarding the firewall zone security level is false?
- A. Two zones cannot be configured with the same security level.
- B. Only the security level of the user-defined zone can be configured.
- C. The default security level of the new zone is 1.
- D. The configured security level cannot be changed.
Answer: D
NEW QUESTION # 32
Which of the following statements regarding the stateful inspection firewall is true?
- A. The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.
- B. The stateful inspection firewall needs to match the rules for each incoming packet.
- C. When the stateful inspection firewall checks packets, packets of one same connection are not correlated.
- D. Because UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the status table.
Answer: A
NEW QUESTION # 33
Which of the following statements about multicast packet forwarding is true?
- A. IGMP snooping cannot control the scope of multicast traffic flooding on a Layer 2 network.
- B. The source address of a multicast packet is a unicast address.
- C. If a multicast data packet fails the RPF check, the packet must have been received through a sub-optimal interface. However, this interface still receives and forwards the multicast traffic downstream.
- D. In multicast transmission, the destination address of a packet can be the unicast address of a host.
Answer: C
NEW QUESTION # 34
There are two BFD operating modes. In_______mode, the local end sends BFD Control packets at specified intervals, and the remote end checks whether the local end periodically sends BFD Control packets. (Use lowercase letters.)
Answer:
Explanation:
primary
NEW QUESTION # 35
OSPF supports area authentication and interface authentication. If both authentication modes are configured, Interface authentication takes preference over area authentication.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 36
Compared with STP, RSTP defines the different port states. Which of the following statements regarding discarding and learning states are true?
- A. The port in discarding state does not learn MAC addresses table.
- B. The port In learning stole docs not learn MAC addresses table.
- C. The port in discarding or learning state does not learn MAC addresses
- D. The port In discarding or learning state does not forward data frames.
Answer: C
NEW QUESTION # 37
RSTP provides different functions in different scenarios. Which of the following statements Is false?
- A. When the designated port enabled with root protection receives optimal RST BPDUs, the port enters the Discarding state and does not forward packets. If the port does not receive optimal RST BPDUs within a certain period of time, the port will automatically restore to the Forwarding state
- B. If the edge port on the switch enabled with BPDU protection receives RST BPDU, the switch sets the edge port as a non-edge-port and triggers STP calculation
- C. After TC-BPDU attack defense function is enabled, you can set the number of times the switch processes TC BPDUs within a certain period
- D. The role of the designated port that is enabled with root protection cannot be changed
Answer: B
NEW QUESTION # 38
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