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NEW QUESTION 27
Which of the following statements about IPv6 address configuration is correct? ()*
- A. IPv6 addresses can only be configured manually
- B. IPv6 supports stateless automatic configuration
- C. IPv6 address supports automatic configuration of multiple clocks
- D. IPv6 supports DHCPv6 for address configuration
Answer: B,C,D
NEW QUESTION 28
Which of the following refers to network communication?
- A. Use a computer to visit the company's official website
- B. Use computer to watch videos online
- C. Download emails from the company's mailbox to your computer
- D. Use instant messaging software (eg, QQ, WeChat) to chat with friends
Answer: A,B,C,D
NEW QUESTION 29
What command can be typed in the system view to switch to the user view? ()
- A. quit
- B. user-view
- C. system-view
- D. souter
Answer: A
NEW QUESTION 30
Which of the following port states does not include the RSTP protocol?
- A. Blocking
- B. Discarding
- C. Learning
- D. Forwarding
Answer: A
NEW QUESTION 31
The Management Information Base (MIB) (Management Information Base) is a virtual database that only exists on the NMS. ()
- A. False
- B. True
Answer: A
NEW QUESTION 32
Which of the following statements about Iv6 address configuration are correct? ()*
- A. IPv6 address supports automatic configuration in multiple ways
- B. IPv6 addresses can only be configured manually
- C. IPv6 supports stateless automatic configuration
- D. IPv6 supports DHCPv6 for address configuration
Answer: A,C,D
NEW QUESTION 33
How many port states does the RSTP protocol have?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 34
What is the full name of the general routing platform VRP? ()
- A. Versatile Routing Protocol
- B. Virtual Routing Platform
- C. Versatile Redundancy Platform
- D. Versatile Routing Platform
Answer: D
NEW QUESTION 35
Is there any correct statement about the TTL field in the IPv4 header? ()
- A. When routing loops occur, the TL value can be used to prevent data packets from being forwarded indefinitely
- B. TTL value length is 8bit
- C. The range of TTL value is 0-255
- D. Each time a message passes through a three-layer device. TL value minus 1
Answer: A,B,C,D
NEW QUESTION 36
The administrator plans to implement route backup by configuring static floating routes, the correct way to achieve this is ().
- A. The administrator only needs to configure two static routes
- B. The administrator needs to configure different metric values for the main static route and the standby static route. The administrator only needs to configure two static routes
- C. The administrator only needs to configure two static routes
- D. The administrator needs to configure different protocol priority values for the main static route and the standby static route
Answer: D
NEW QUESTION 37
Which of the following statements about Prefix Segment is wrong? ()
- A. Prefix Segment spreads to other network elements through the IGP protocol, which is globally visible and effective
- B. Prefix Segment can be automatically allocated by IGP
- C. Prefix Segment is used to identify a destination address prefix in the network (Prefix)
- D. Prefix Segment needs to be configured manually
Answer: B
NEW QUESTION 38
The broadcast address is a special address that all the host bits in the network address are set to, and it can also be used as a host address. ()
- A. False
- B. True
Answer: A
NEW QUESTION 39
What is wrong in the following statement about the main functions of the router?
- A. Forwarding according to the source IP address of the received data packet
- B. Realize mutual communication between devices on the same network segment
- C. Establish routing tables through multiple protocols
- D. Guide data forwarding according to the routing table
Answer: A,B
NEW QUESTION 40
What is RouterDeadInterval of the OSPF protocol on the broadcast network by default? ()
- A. 10s
- B. 20s
- C. 40s
- D. 30s
Answer: C
NEW QUESTION 41
When planning a campus network, you can plan VLANs according to business types.
- A. False
- B. True
Answer: B
NEW QUESTION 42
An ACL rule is as follows: Which of the following IP addresses can be matched by permit rules? () rule5per mit ip source10.0.2.00.0.254.255
- A. 10.0.2.I
- B. 10.0.4.5
- C. 10.0.6.7
- D. 10.0.5.6
Answer: D
NEW QUESTION 43
If the broadcast address of a network is 172.16.1.255, what might its network address be? ()
- A. 172.16.2.0
- B. 172.16.1.1
- C. 172.16.1.253
- D. 172.16.1.128
Answer: D
NEW QUESTION 44
The network shown in the figure below. From a security perspective, router A refuses to receive OSPF packets and ICMP packets received from interface G0/0/1. Which of the following commands can achieve this requirement? () (Multiple Choice Questions)
- A. acl number 3000
Rule 5 deny 89
Rule 10 deny 1
#
Interface GigabitEtherneto/0/1Traffic-filter inbound acl 3000# - B. acl number 2000
Rule 5 deny 89
Rule 10 deny 1
#
Interface GigabitEthernet0/0/1Traffic-filtet inbound acl 2000# - C. acl number 3000
Rule 5 deny 89
Rule 10 deny icmp
#
Interface GigabitEthernet0/0/1Traffic-filter inbound acl 3000# - D. acl number 3000
Rule 5 deny ospf
Rule 10 deny icmp
#
Interface GigabitEthernet0/0/1Traffic-filtet inbound acl 3000#
Answer: A,C,D
NEW QUESTION 45
The following two configuration commands can realize the router RTA.
The main and backup backup routes to the same destination 10.1.1.0: () (RTA)ip route--statiC.10.1.1.02412.1.1.1 permanent(RTA)ip route--statiC.10.2.2.02413.1.1.1.
- A. False
- B. True
Answer: A
NEW QUESTION 46
In the network shown in the figure below, the network administrator hopes that the data packets sent from host A to host B pass through the G0/0/3 interface between routers, and the data packets sent from host B to host A pass between the routers. G0/0/4 interface, which of the following commands can achieve this requirement?
- A. RTA: ip route-static10.0.12.5 255.255.255.252 11.0.12.2 RTB: ip route-static10.0.12.1 255.255.255.252
11.0.12.5 - B. RTA: ip route- static10.0.12.5 255.255.255.252 11.0.12.6 RTB: ip route- static10.0.12.1 255.25.255.252
11.0.12.1 - C. RTA: ip route- static0.0.0.0 0.0.0.0 11.0.12.6 RTB: ip route- statIc0.0.0.0 0.0.0.0 11.0.12.1
- D. RTA: ip route-static 0.0.0.0 0.0.0.0 11.0.12.2 RTB: ip route-static 0.0.0.0 0.0.0.0 11.0.12.5
Answer: A,D
NEW QUESTION 47
Three Layer 2 switches are interconnected with one HUB. The switches are all enabled with STP bridge ID. Refer to the figure below. What are the default errors of other configurations? () (Single-choice question)
- A. G0/0/2 of SWA is blocked
- B. SWA is the root bridge in the simple network
- C. G0/0/1 of SWC is alternative. It is in blocking state
- D. The two ports on SWA are designated ports and are in the forwarding state
Answer: D
NEW QUESTION 48
As shown in the figure, a static NAT command is deployed on router R1. When the PC accesses the Internet, the destination address in the data packet will not change. ()(True or False)
- A. False
- B. True
Answer: B
NEW QUESTION 49
The load sharing mode at both ends of the Eth-Trunk can be inconsistent.
- A. False
- B. True
Answer: B
NEW QUESTION 50
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