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NEW QUESTION 43
When the Hold time supported by two BGP neighbors is inconsistent, the neighbors will negotiate to adopt the lowest Hold time interval that both ends can support.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 44
Which of the following categories can ACL be divided into? (Multiple choice)
- A. Advanced ACL
- B. Basic ACL
- C. User-defined ACL
- D. Layer 2 ACL
Answer: A,B,C,D
NEW QUESTION 45
Which one of the following descriptions of the trigger mechanism of 802.1X authentication is correct? (Multiple choice)
- A. 802.1X authentication cannot be initiated by an authentication device (such as an 802.1 switch)
- B. 802.1X authentication can only be initiated by the client
- C. 802.1X clients can trigger authentication by multicast or broadcast
- D. The authentication device can trigger authentication in multicast or unicast mode
Answer: C,D
NEW QUESTION 46
During the operation of DHCP, multiple message types will be exchanged, so which of the following messages are not sent from the client to the server?
- A. DHCP RELEASE
- B. DHCP REQUEST
- C. DHCP DISCOVER
- D. DHCP NAK
Answer: D
NEW QUESTION 47
Which of the following descriptions are correct about two-tier roaming and three-tier roaming? (Multiple choice)
- A. Three-tier roaming means that the client roams between different subnets
- B. If the VLAN ID associated before and after the STA is the same when roaming, it must belong to Layer 2 roaming
- C. The VLANs on the AP service set associated with the STA before and after Layer 3 roaming must be the same
- D. Layer 2 roaming means that the client roams in the same subnet
Answer: A,C
NEW QUESTION 48
The state inspection firewall uses the session table to track the active TCP sessions and UDP sessions, and the firewall security policy determines which sessions are established, and the data packets will only be forwarded when they are associated with the session.
- A. False
- B. True
Answer: B
NEW QUESTION 49
There can be multiple nodes under a route-policy. Different nodes are identified by node. Each node can have multiple if-match and apple clauses. Which of the following descriptions are wrong? (Multiple choice)
- A. The relationship between the if-match clauses under each node is "and"
- B. The relationship between different nodes is "and"
- C. There is an "or" relationship between the if-match clauses under each node
- D. There is an "or" relationship between different nodes
Answer: A,D
NEW QUESTION 50
The following description of the BGP UPDATE message, which is wrong?
- A. Generally, the UPDATE message is sent after Keepalive
- B. UPDATE message is used to transfer routing information between BGP peers
- C. UPDATE message can carry multiple reachable routing information
- D. The UPDATE message is sent in the form of multicast
Answer: D
NEW QUESTION 51
Regarding the ABR in OSPF, which of the following description is wrong?
- A. Convert the Type 1 and Type 2 LSAs in the connected non-skeletal area into Type 3 LSAs and publish them to the backbone area
- B. ABR cannot generate Type 3, Type 4, or Type 5 LSA
- C. There are multiple LSDBs on the ABR, and the ABR maintains one LSDB for each area
- D. The Type 1, Type 2, and Type 3 LSA in the backbone area of the ABR are converted to Type 3 LSA and published to the connected non-skeletal area
Answer: B
NEW QUESTION 52
In the process of IS-IS, configured filter-policy 2000 export, which of the following statement on the role of the command is wrong?
- A. It needs to be used in conjunction with route import, which is used to advertise only part of the imported external routes to neighbors
- B. It will restrict the external release of routing entries generated by the device itself
- C. If this command is not configured, the device will advertise all the routes imported by the external routing protocol to the S-IS by default
- D. This command will filter the link state information released to the outside world
Answer: B
NEW QUESTION 53
BGP prefers the route with the best Origin attribute value. Origin attribute values are: EGP, IGP, ().
Answer:
Explanation:
incomplete
NEW QUESTION 54
BGP neighbors are neighbor relationships established through UDP.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 55
As shown in the figure, four routers in the same LAN are running lS-IS, where R1 is DIS, then R2, R3, R4 establish adjacency relationship with R1 respectively, and no adjacency relationship is established between R2, R3, and R4.
- A. True
- B. False
Answer: B
NEW QUESTION 56
The IP protocol number of the VRRP message is:
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 57
Which of the following description about AS_PATH is wrong?
- A. BGP not accept AS_ PATH of the present contained AS Number routes
- B. AS_PATH refers to the list of ASs experienced by BGP routing in the transmission path
- C. When there are two or more routes to the same destination in the router, the advantages and disadvantages of these routes can be compared with each other through this attribute, and the longer the AS_PATHA path is super preferred
- D. AS_ PATH is a recognized attribute in BGP
Answer: C
NEW QUESTION 58
Which of the following descriptions of MED is correct? (Multiple choice)
- A. MED is an optional non-transitional attribute
- B. The default value of MED is 0
- C. MED can only be delivered within this AS
- D. The default value of MED is 100
Answer: A,B
NEW QUESTION 59
Which of the following description about configuration commands for the default routing issued by each protocol is wrong?
- A. In the BGP protocol, the default-route imported command is used to enable the function of importing provincial routes into the BGP routing table
- B. In the OSPF protocol, the default-route- advertised command is used to advertise the default route information to the normal OSPF area
- C. In the ISIS protocol, the default-route-advertise command is used to advertise the default route information to neighbors
- D. In static routing, the ip route- static default preferencer command is used to generate a default route on the current router
Answer: D
NEW QUESTION 60
D. DoS attack means that the attacker controls a large number of zombie hosts and sends a large number of carefully constructed attack messages to the target network, so that the attacked has the effect of refusing to provide services to the requests of normal users.
- A. False
- B. True
Answer: B
NEW QUESTION 61
Will setting the community attribute of the route through the routing policy affect the route selection?
- A. It can be indirectly affected. You can classify routes by setting the community characteristics of routing, and then set different routing-related attributes according to the category. These attributes only include Loacal_Pre and MED, so as to achieve the purpose of influencing the routing
- B. It cannot be affected because the Community attribute of the route is a non-transitional attribute and cannot be transmitted between routers
- C. After the router receives the route update with the Commmity attribute of No_ Advertise, it will not be published outside the local AS
- D. It can be indirectly affected. You can classify routes by setting the Community attribute of the route, and then set different routing-related attributes according to the category, such as Local_Pre, MED, etc., so as to achieve the purpose of influencing routing
Answer: D
NEW QUESTION 62
BGPAS_PATH property is a selectable transition property.
- A. True
- B. False
Answer: B
NEW QUESTION 63
Which of the following types of equipment belong to Huawei data center switches? (Multiple choice)
- A. CloudEngine S12700E
- B. CloudEngine 16800
- C. CloudEngine 12800
- D. NetEngine AR6121
Answer: B,C
NEW QUESTION 64
The routing tool route-policy can filter and set BGP attributes based on pre-defined conditions, so it is often used to define policies for BGP peers, and it is often used during route generation. All the configured routes are denied to pass the route-policy.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 65
Which of the following types of equipment is suitable for Huawei's IP wide area bearer network solution?
- A. NetEngine 8000
- B. AirEngine 5760-22w
- C. NetEngine AR6000
- D. CE12804
Answer: A
NEW QUESTION 66
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