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NEW QUESTION 29
IGMPV3 not only supports IGMPv1 General Query and IGMPv2 Group-Specific Query, and also IGMPv3 Source/Group-Specific Query.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 30
Which of the following attribute must be carried in an Update message?
- A. Prefval
- B. Local-pref
- C. MED
- D. AS-Path
Answer: B
NEW QUESTION 31
A local router runs IS-IS and its command output is shown in the following figure. Which of the following statements is true?
- A. S4/0/0 supports IPv6.
- B. S4/0/0 sends IIH packets at the interval of 30s.
- C. The cost of S4/0/0 is 20.
- D. The circuit level of S4/0/0 is Level-1.
Answer: B
NEW QUESTION 32
Which of the following statements regarding the LSA age field are true?
- A. 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.
- B. The unit of this field is seconds. In a LSDB, the LS age of a LSA decreases with time.
- C. The unit of this field is seconds. In a LSDB, the LS age of a LSA increases with time.
- 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: B
NEW QUESTION 33
Which of the following statements about WLAN roaming are true?
- A. APs for roaming must be in the same basic service set (BSS).
- B. APs for roaming must have overlapping signal coverage.
- C. APs for roaming do not need to have overlapping signal coverage.
- D. APs for roaming must be in the same extended service set (ESS).
Answer: C
NEW QUESTION 34
The traffic limiting policy feature only supports the number of connections initiated by the specified IP or the number of connections received.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 35
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 36
Which of the following statements regarding the stateful inspection firewall is true?
- A. The stateful inspection firewall needs to match the rules for each incoming packet.
- B. 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.
- 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: B
NEW QUESTION 37
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 38
Which of the following attacks is not the network layer attack?
- A. ICMP attack
- B. ARP spoofing attack
- C. Smurf attack
- D. IP spoofing attack
Answer: B
NEW QUESTION 39
Which of the following TLVs is used by ISIS to describe the IP address of an interface?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 40
Which of the following statements regarding an IP prefix are true?
- A. An IP prefix filter cannot be used to filter data packets.
- B. An IP prefix filter is used to filter IP address prefixes and cannot match an IP prefix number and a prefix length at the same time.
- C. An IP prefix filter can be used to filter data packets.
- D. An IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the same time.
Answer: C
NEW QUESTION 41
Which of the following statement regarding the display ospf peer command output is true?
- A. Address: 10.1,1.1 Indicates that the local interface address is 10.1.1.1.
- B. Through negotiation during DD packet exchange, the local end becomes the slave.
- C. Router ID indicates that the local router ID Is 10.1.1.1.
- D. The DR address is 10.1.1.1
Answer: A
NEW QUESTION 42
Which of the following is the default interval at which the DIS on a broadcast IS_IS network sends CSNPs.
- A. 0
- B. 3.3
- C. 1
- D. 2
Answer: A
NEW QUESTION 43
If a router ID is configured in both the system via and the BGP view, BGP uses the router ID configured in the BGP view because the BGP view takes precedence over the system view.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 44
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 45
What is the correct procedure for a VLAN pool to assign terminals to VLANs.
Answer:
Explanation:
NEW QUESTION 46
Which Of the following IEEE 802.11 standards is also known as Wi-Fi 6?
- A. 802.11ac
- B. 802.11n
- C. 802.11ax
- D. 802.11b
Answer: A
NEW QUESTION 47
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 IP address of the interface is 192.168.1.1.
- C. The IGMP version is IGMPV2.
- D. The maximum time for response to Query messages is 10s.
Answer: D
NEW QUESTION 48
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