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NEW QUESTION # 134
When deploying MPLS/BGP IP VPN, which of the following descriptions is wrong regarding the use of BGP to exchange routing information between PE-CE?
- A. In the case of CE multi-homing, enabling BGP AS number replacement may cause routing loops. BGP SoD can be used to prevent routing loops in VPN sites.
- B. When BGP is used to exchange routing information between PE and CE, there is no need to import private network routes into BGP on PE.
- C. In the Hub&Spoke scenario, when Hub-CE and Hub-PE use IGP, Spoke-PE and Spoke-CE cannot use EBGP
- D. When BGP is used to exchange routing information between PE and CE, if the autonomous systems where the two VPN sites are located use the same private AS number, the AS number replacement function can be used to replace the received private AS number with any specified AS number. The AS number in the network route to prevent the route from being discarded due to repeated AS numbers
Answer: D
NEW QUESTION # 135
Which of the following commands can be used to view information about BGP VPNV4 routes and BGP private network routes on PE?
- A. display bgp routing-table ipv4-family vpnv4
- B. display bgp routing-table address-family vpnv4
- C. display bgp vpnv4 routing-table
- D. display vpnv4 bgp routing-table
Answer: C
NEW QUESTION # 136
DHCP Snooping is a DHCP security feature that can be used to defend against a variety of attacks, including ( ). (Multiple choice)
- A. Defense against DHCP spoofing attacks
- B. Defense against TCP flag attacks
- C. Defense against man-in-the-middle attacks and IP/MAC Spoofing attacks
- D. Defense against starvation attacks that change the CHADOR value
Answer: A,C,D
NEW QUESTION # 137
Since BGP is an EGP routing protocol, BGP routing policies can only be deployed between EBGP neighbors. Deploying routing policies between IBGP neighbors is invalid.
- A. True
- B. False
Answer: B
NEW QUESTION # 138
BGP4+ carries the next hop address of the IPv6 route through the Next_Hop attribute in the Update packet.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION # 139
In order to prevent hackers from attacking user devices or networks through MAC addresses, the MAC addresses of untrusted users can be configured as black hole MAC addresses to filter out illegal MAC addresses.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 140
In order to advertise IPv6 routes in BGP4+, what fields are added in Update?
- A. A new path attribute: AP_UNREACH_NLRI
- B. A new NLRI type, IPv6 NLR
- C. A new path attribute: MP_REACH NLRI
- D. A new path attribute: IPV6_REACH_NLRI
Answer: C
NEW QUESTION # 141
When a large number of IP phones and WLAN APs need to be accessed in the network, which type of switch is generally considered?
- A. Switch with STP edge port capability
- B. Switches with POE function
- C. Switch with QoS function
- D. Switches with SACG function
Answer: B
NEW QUESTION # 142
Network administrator A needs to permit or deny some specific routes, but administrator A is not proficient in configuration. Please help administrator A to sort the configurations reasonably so that the device can permit or deny specific routes as required in the figure.
Answer:
Explanation:
NEW QUESTION # 143
What is the Router-ID of OSPFv3?
- A. 100-bit value
- B. 128-bit value
- C. 64-bit value
- D. 32-bit value
Answer: D
NEW QUESTION # 144
The rollback operation of project cutover can be temporarily determined according to the situation during cutover, and no advance plan is required.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION # 145
Cutover rollback refers to rolling back the current changes to the state before execution.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 146
In an MPLS network, SRs running the DP protocol exchange LDP messages to implement functions such as neighbor discovery, session establishment and maintenance, and label management. To ensure the reliability of message delivery, all LDP messages are sent and received based on TCP connections.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION # 147
If the goods counted are inconsistent with the quantity on the packing list, you can unpack and inspect the goods before contacting the manufacturer for processing.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION # 148
What is the default aging time of the MAC address table of Huawei switches?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 149
Regarding the content of network security optimization, which of the following options is incorrect?
- A. Administrative Security
- B. Access Control
- C. Border Security
- D. Log Management
Answer: D
NEW QUESTION # 150
Regarding the site in the BGP/MPLS IP VPN network architecture. Which of the following descriptions is correct?
- A. Under no circumstances can different sites belonging to the same VPN use overlapping address spaces
- B. A site is a group of IP systems, and a network composed of a host cannot be called a site
- C. Terminals connected to the operator's network through the same C may belong to different sites (MCE)
- D. The two networks that are geographically separated must belong to different sites
Answer: C
NEW QUESTION # 151
When the device is used as an SSH server, a local key pair must be configured.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 152
If no security policy is configured between firewall domains, or when searching for a security policy. If all security policies are not matched, the default interzone packet filtering action is executed by default is?
- A. Escalate to the administrator
- B. Refuse to pass
- C. Different default actions should be different
- D. Only allowed to pass some part
Answer: B
NEW QUESTION # 153
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