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Huawei H12-891 Practice Test - Questions Answers, Page 54

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Each DD message has a sequence number for data confirmation, and a DD sequence number is 2 bytes long

A.
True
A.
True
Answers
B.
False
B.
False
Answers
Suggested answer: B

SNMPv3 defines which security features

A.
Privacy
A.
Privacy
Answers
B.
Authentication
B.
Authentication
Answers
C.
Domain checking
C.
Domain checking
Answers
D.
Accounting
D.
Accounting
Answers
Suggested answer: A, B

Which timer for spanning tree protocol dictates how often to see the root bridge send configuration BPDUs?

A.
forwarding delay timer
A.
forwarding delay timer
Answers
B.
STP timer
B.
STP timer
Answers
C.
HOLD timer
C.
HOLD timer
Answers
D.
Maxage timer
D.
Maxage timer
Answers
E.
Hello timer
E.
Hello timer
Answers
Suggested answer: E

Users hope to be able to make the router forward and select messages according to their own defined policies on the basis of traditional route forwarding, and can adopt policy routing, and the following description of policy routing is incorrect

A.
Policy Routing can set the next hop IP address
A.
Policy Routing can set the next hop IP address
Answers
B.
Policy Routing cannot be set in the next statement DSCP
B.
Policy Routing cannot be set in the next statement DSCP
Answers
C.
Policy Routing cannot be used to set IP precedence
C.
Policy Routing cannot be used to set IP precedence
Answers
D.
Policy-based routing can be used to match message lengths
D.
Policy-based routing can be used to match message lengths
Answers
Suggested answer: C

The command ip as-path-fiter as-path-fiter-number (denylpermit) regular-expression to configure aspath- ilter, in this command , multiple sentences can form an as-path-filter statement, what is the relationship between so many statements?

A.
Routes match in order When a route matches to a clause, the relationship between
A.
Routes match in order When a route matches to a clause, the relationship between
Answers
B.
and is no longer matched downwards
B.
and is no longer matched downwards
Answers
C.
or relationships
C.
or relationships
Answers
D.
Routes match in order and routes need to match all sub-directions
D.
Routes match in order and routes need to match all sub-directions
Answers
Suggested answer: A

The following description of the characteristics of Huawei device Eth-trunk link aggregation is correct?

A.
Link aggregation enables load balancing based on data TCP or UDP ports
A.
Link aggregation enables load balancing based on data TCP or UDP ports
Answers
B.
Link aggregation cannot be deployed across devices
B.
Link aggregation cannot be deployed across devices
Answers
C.
Link aggregation can be applied to Both Layer 2 and Layer 3 devices
C.
Link aggregation can be applied to Both Layer 2 and Layer 3 devices
Answers
D.
Link aggregation can only be applied to Layer 2 devices.
D.
Link aggregation can only be applied to Layer 2 devices.
Answers
Suggested answer: C

The following description of the GVRP interface registration mode in Huawei switches is correct?

A.
When fixed registration mode is selected, the interface cannot propagate dynamic VLANs
A.
When fixed registration mode is selected, the interface cannot propagate dynamic VLANs
Answers
B.
When the normal registration mode is selected, allow the interface to dynamically register and unregister the VLAN. Logout here includes deleting dynamically learned VLANs and VLANs created natively by the administrator
B.
When the normal registration mode is selected, allow the interface to dynamically register and unregister the VLAN. Logout here includes deleting dynamically learned VLANs and VLANs created natively by the administrator
Answers
C.
When the interface layer two operating mode must be hybird
C.
When the interface layer two operating mode must be hybird
Answers
D.
GVRP when the register mode with forbidden is selected, there are four types of interface registration mode
D.
GVRP when the register mode with forbidden is selected, there are four types of interface registration mode
Answers
Suggested answer: A

When troubleshooting a local area network, you notice a large number of frame alignment errors, FCS errors and LAG conflicts, and the possible cause of these problems is ?

A.
Switches and terminals are interconnected over 10/100/1000base-T Ethernet links, and switches and terminals operate in half-duplex mode
A.
Switches and terminals are interconnected over 10/100/1000base-T Ethernet links, and switches and terminals operate in half-duplex mode
Answers
B.
There is a mode mismatch on the 1000base-LX/LH link
B.
There is a mode mismatch on the 1000base-LX/LH link
Answers
C.
The operating mode does not match
C.
The operating mode does not match
Answers
D.
on a 10/1000/1000base-T Ether link This type of error occurs in most environments
D.
on a 10/1000/1000base-T Ether link This type of error occurs in most environments
Answers
Suggested answer: C

Protocols with TCP ports 443, 179, 137, 110, and 23 are, in order: radio

A.
Finger,DHCP Server,NetBios Name Server,POP3,TelnetB
A.
Finger,DHCP Server,NetBios Name Server,POP3,TelnetB
Answers
B.
LDAP,SNMP,TFTP,POP3,Telnet
B.
LDAP,SNMP,TFTP,POP3,Telnet
Answers
C.
HTTPS,SNMP,POP3,DNS ,Telnet
C.
HTTPS,SNMP,POP3,DNS ,Telnet
Answers
D.
HiPS,BGP, NetBios Name Server ,POP3,TelnetE. BGP,POP3,SNMP,TFTP,Teinet
D.
HiPS,BGP, NetBios Name Server ,POP3,TelnetE. BGP,POP3,SNMP,TFTP,Teinet
Answers
Suggested answer: D

What designs in the router can improve the reliability of the router?

A.
Dual power supply design
A.
Dual power supply design
Answers
B.
Module hot-swappable design
B.
Module hot-swappable design
Answers
C.
Issu Design
C.
Issu Design
Answers
D.
Dual-engine design
D.
Dual-engine design
Answers
Suggested answer: A, D
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