QUESTION NO: 1
If a BGP device is attacked or network configuration errors occur, the device will receive a large number of routes from its peers. As a result, a lot of resources are consumed on the device. To prevent this issue, the administrator must limit the resources to be consumed during device operation based on the network planning and device capacity. BGP provides peer-specific route control to limit the number of routes received from a peer.
If a BGP device is attacked or network configuration errors occur, the device will receive a large number of routes from its peers. As a result, a lot of resources are consumed on the device. To prevent this issue, the administrator must limit the resources to be consumed during device operation based on the network planning and device capacity. BGP provides peer-specific route control to limit the number of routes received from a peer.
Correct Answer: A
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QUESTION NO: 2
Typically, a protocol that occupies two ports during communication is called a multi-channel protocol.
For such protocols, the ASPF function must be enabled on the firewall to ensure smooth setup of the data channel and reduce the risk of attacks. Which of the following protocols is not a multi-channel protocol?
Typically, a protocol that occupies two ports during communication is called a multi-channel protocol.
For such protocols, the ASPF function must be enabled on the firewall to ensure smooth setup of the data channel and reduce the risk of attacks. Which of the following protocols is not a multi-channel protocol?
Correct Answer: D
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QUESTION NO: 3
Regarding the route-policy set-cost configuration below, which of the following statements is true?
Regarding the route-policy set-cost configuration below, which of the following statements is true?
Correct Answer: D
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QUESTION NO: 4
iMaster NCE-Fabric networks. It helps customers improve service efficiency from multiple dimensions.
Which of the following functions is not supported by the controller?
iMaster NCE-Fabric networks. It helps customers improve service efficiency from multiple dimensions.
Which of the following functions is not supported by the controller?
Correct Answer: A
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QUESTION NO: 5
As shown in the figure, SWA, SWB, and SWC run the Rapid Spanning Tree Protocol (RSTP). What are the roles of SWB ' s GE0/0/2 and SWC ' s GE0/0/1?
As shown in the figure, SWA, SWB, and SWC run the Rapid Spanning Tree Protocol (RSTP). What are the roles of SWB ' s GE0/0/2 and SWC ' s GE0/0/1?
Correct Answer: C
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QUESTION NO: 6
The following figure shows a broadcast IS-IS network. By default, Rl is elected among the four routers as the DIS. After the DIS priority of GE 0/0/1 on R2 is changed to 63 and the network stabilizes, which of the following routers is elected as the DIS?
The following figure shows a broadcast IS-IS network. By default, Rl is elected among the four routers as the DIS. After the DIS priority of GE 0/0/1 on R2 is changed to 63 and the network stabilizes, which of the following routers is elected as the DIS?
Correct Answer: D
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QUESTION NO: 7
During the initial formation of a spanning tree in STP, all STP switches consider themselves as the root bridge. Therefore, by default, they generate and send configuration BPDUs periodically (every______seconds). (Enter only digits.)
During the initial formation of a spanning tree in STP, all STP switches consider themselves as the root bridge. Therefore, by default, they generate and send configuration BPDUs periodically (every______seconds). (Enter only digits.)
Correct Answer:
2
QUESTION NO: 8
BGP routes have multiple path attributes. When a router advertises a BGP route to its peers, the route carries multiple path attributes. These attributes describe the characteristics of the BGP route and affect route selection in some scenarios. The attribute is Huawei-specific. It is valid only on the local device and is not transmitted to BGP peers. (Enter the attribute name in lowercase as it appears in the command output about the BGP routing table.)
BGP routes have multiple path attributes. When a router advertises a BGP route to its peers, the route carries multiple path attributes. These attributes describe the characteristics of the BGP route and affect route selection in some scenarios. The attribute is Huawei-specific. It is valid only on the local device and is not transmitted to BGP peers. (Enter the attribute name in lowercase as it appears in the command output about the BGP routing table.)
Correct Answer:
preference
Explanation:
BGP routes have a variety of path attributes that describe their characteristics and influence route selection.
These attributes include well-known mandatory attributes like AS-PATH and NEXT-HOP, as well as optional attributes like MED and LOCAL_PREF.
In Huawei devices, there is a Huawei-specific attribute called " preference " , which is a local parameter used to influence BGP route selection on the device.
* Key Characteristics of " preference " :
* It is valid only locally on the router.
* It is not shared with BGP peers.
* It helps the router determine the best route when multiple routes exist for the same prefix.
* It appears in the BGP routing table output in lowercase as preference.
Thus, the correct answer is preference (entered in lowercase as required).
References:
Huawei HCIA-Datacom Study Guide, Chapter on " BGP Attributes " .
Explanation:
BGP routes have a variety of path attributes that describe their characteristics and influence route selection.
These attributes include well-known mandatory attributes like AS-PATH and NEXT-HOP, as well as optional attributes like MED and LOCAL_PREF.
In Huawei devices, there is a Huawei-specific attribute called " preference " , which is a local parameter used to influence BGP route selection on the device.
* Key Characteristics of " preference " :
* It is valid only locally on the router.
* It is not shared with BGP peers.
* It helps the router determine the best route when multiple routes exist for the same prefix.
* It appears in the BGP routing table output in lowercase as preference.
Thus, the correct answer is preference (entered in lowercase as required).
References:
Huawei HCIA-Datacom Study Guide, Chapter on " BGP Attributes " .
QUESTION NO: 9
Which of the following statement regarding the display ospf peer command output is true?
Which of the following statement regarding the display ospf peer command output is true?
Correct Answer: A
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QUESTION NO: 10
A BGP device receives a route carrying an unknown attribute from a peer but does not know whether other devices need the attribute. In this case, the BGP device retains this attribute when advertising the route to other peers. Which of the following attributes is of this type?
A BGP device receives a route carrying an unknown attribute from a peer but does not know whether other devices need the attribute. In this case, the BGP device retains this attribute when advertising the route to other peers. Which of the following attributes is of this type?
Correct Answer: B
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QUESTION NO: 11
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.
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.
Correct Answer: A
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QUESTION NO: 12
Hackers often obtain the login permissions of system administrators through various attacks.
Which of the following measures can be taken to enhance the security of administrator accounts?
(Select all that apply)
Hackers often obtain the login permissions of system administrators through various attacks.
Which of the following measures can be taken to enhance the security of administrator accounts?
(Select all that apply)
Correct Answer: A,B
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QUESTION NO: 13
On an ISIS network, each router has at least one NET. If a router is configured with multiple NETs, ensure that these NETs have the same system ID.
On an ISIS network, each router has at least one NET. If a router is configured with multiple NETs, ensure that these NETs have the same system ID.
Correct Answer: A
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QUESTION NO: 14
Which of the following statements are false about VRRP timers? (Select all that apply)
Which of the following statements are false about VRRP timers? (Select all that apply)
Correct Answer: B,D
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