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NEW QUESTION 53
HW users are transferring a very large number of files via TFTP. What protocol does TFTP rely on for transmission?
- A. IP ?TCP
- B. UDP
- C. FTP
- D. NFS
- E. ICMP and UDP
Answer: B
NEW QUESTION 54
In a multicast network running PIM-SM mode, how does the router choose the upstream interface?
- A. Interface for sending PIM Heilo messages.
- B. Find the outbound interface corresponding to the mapping proxy in the unicast routing table
- C. looks up the outgoing interface corresponding to the RP address in the unicast routing table
- D. Interfaces to which multicast group members are directly connected
- E. The interface that is fast to the PIlM Join message
Answer: C
NEW QUESTION 55
The switch uses IPSG technology to verify the source address of the IP packet, and the verification matrix used by the IPSG is obtained through the ARP resolution process in the listening network
- A. True
- B. False
Answer: B
NEW QUESTION 56
The correct description of the extended features of ISIS is ?
- A. If there are other vendors' devices on the network and do not support the LSP sharding function, the sharding expansion mode must be configured as Model-1, otherwise the message will not be recognized by other vendors' devices.
- B. After you enable the LSP shard extension feature of your router, you can use it without restarting the ISIS process.
- C. When the amount of information in the Link State Protocol data packet PDU to be released by ISIS is too large, the ISIS router will generate multiple LSP shards to carry more ISIS information.
- D. ISIS can choose whether to authenticate incoming SNP and LSP packets
Answer: A,C,D
NEW QUESTION 57
What kind of scenario can use AS-path-filter?( Multiple select).
- A. A Filters routes received from BGP neighbors based on the AS PATH attribute carried by the route, such as the command peer X.x.x.x as path-filter import
- B. Filter routes sent to BGP neighbors based on the AS PATH attribute that the route carries. For example, the command peer x.x.x.x as path-filter export
- C. The if-match clause in Route-policy
- D. The apply clause in Route policy
Answer: A,B,C
NEW QUESTION 58
In MPLSVPN, in order to distinguish between IPv4 prefixes that use the same address space, the RD value is added to the IPv4 address, and the following options are described correctly as ?
- A. RD is encapsulated in the Update message as an extended community attribute of BGP during delivery
- B. RD can be used to control the publication of VPN routing information
- C. On a PE device, each VPN instance corresponds to an RD value, and the RD value must be unique on the same PE device
- D. After the PE receives an IPv4 route from CE, it adds an RD to the route to IPv4 that translates to a globally unique VPN-IPv4 route and publishes it on the public network
Answer: C
NEW QUESTION 59
If the OSPF protocol is running in the network, after configuring the non-osseous thousand region in the OSPF region as the Totally Stub region, the ABR router sends a message to Totally The Stub area issues an LSA with an LSID of 0000, which category the LSA belongs to LSA?( Single choice questions).
- A. LSA1
- B. LSA3
- C. LSA5
- D. LSA2
Answer: B
NEW QUESTION 60
If there are multiple recipients in a multicast group, the administrator enables the IGMP-Snooping function on the switch connecting the recipient, and when the receiver receives the universal group query packet of the queryer from the switch, how should multiple recipients respond?
- A. All recipients will respond to the Report message only if IGMPvl is running.
- B. All recipients will respond to Report messages only if ICMPV2 is running.
- C. All recipients will respond to the Report message
- D. The first recipient whose response time time expires sends the Report message, the other receivers do not.
Answer: C
NEW QUESTION 61
What improvements have been made to the IGMPv2 protocol compared to IGMPv1? ( Multiple Choice)
- A. Added a specific source group query packet
- B. Added high group messages
- C. Added maximum response time field
- D. Added specific group query message
Answer: B,C,D
NEW QUESTION 62
Regarding the Stub region and the Totally Stub region of the OSPF protocol, the following statement is correct (multiple choice)
- A. When you modify the original Stub area to a Totally Stub region, the number of LSAs propagating within the region will definitely decrease
- B. ASBR cannot be present in either the Stub zone or the Totally Stub zone
- C. If there are two ABR in the Totally Stub zone, each ABR sends an LS ID of 0000 to the router in the zone LSA
- D. After modifying the original Stub area to a Totally Stub area, the number of LSAs in the LSDB of each router in the region will definitely be reduced
Answer: B,C
NEW QUESTION 63
In the following topology diagram, R1 can access the Internet through R2 and R3, R1 and R2, R1 and R1 An EGP connection is established between R3 , and R2R3 belongs to the same AS, each via BGP Publishing a default route that requires R1 to visit lnternet's traffic preference R2, can the following practices be achieved?
- A. R1 specifies that the peer R3 sets the MED property to 150 in the import direction
- B. R2 specifies that the peer R1 sets the MED property to 150 in the export direction
- C. R2 specifies that the peer R1 sets the local priority to 150 in the export direction
- D. R1 specifies that the peer R2 beats the local priority in the import direction to 150
Answer: A,D
NEW QUESTION 64
In a data communication session between two hosts, which level does the session layer of the oSI model of the host on one end communicate with the osl mode of the host on the other end?
- A. Communicate with the conversation layer on the other end B Communicate with the application layer at the other end
- B. Communicate with the data link layer at the other end
- C. Communicate with the physical layer at the other end
- D. Communicate with the presentation layer at the other end
Answer: A
NEW QUESTION 65
The following description of the GVRP interface registration mode in Huawei switches is correct?
- A. GVRP when the register mode with forbidden is selected, there are four types of interface registration mode
- 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
- C. When fixed registration mode is selected, the interface cannot propagate dynamic VLANs
- D. When the interface layer two operating mode must be hybird
Answer: C
NEW QUESTION 66
In the laboratory network, the network is built according to the following topology diagram, SWI is the default configuration, and SW2 disables the switch STP function.
- A. SG0/0/2 for WI enters the Discarding state
- B. SW2 and G0/0/1 enters the Discarding state
- C. SW2 G0/0/2 enters discarding state
- D. No interface is backed up for blocking
- E. SWI's G0/0/1 enters the Discarding state
Answer: D
NEW QUESTION 67
The command to configure VRRP preemption delay is ?
- A. vrrp vrid 1 timer delay 20
- B. vrrp vrid 1 preempt-mode timer delay 20
- C. vrrp vrid 1 preempt-timer 20
- D. vrrp vrid 1 preempt-delay 20
Answer: B
NEW QUESTION 68
The following statements about the VRRP protocol are correct (multiple choice).
- A. VRRPv3 does not support authentication, while VRRPV2 does
- B. Both VRRPv2 and VRRPv3 support authentication
- C. The owner of the Master IP address has a VRP priority of 255, and all configurable priorities range from
0 to 254 - D. VRRPv2 only applies to IPv4 networks, and VRRPv3 only applies to IPv6 networks
Answer: A
NEW QUESTION 69
By default, routers running IS-IS in broadcast networks have a period of seconds for DIS to send CSNP packets?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 70
Which of the following options uses an alternate channel to enable communication between IPV6 addresses?
- A. DualStack
- B. 6to4
- C. NAT64
- D. ISATAP
Answer: B,D
NEW QUESTION 71
OSPFv3 uses the same route advertisement method as OSPFv2: advertising is done through the network command in the OSPFv3 area view.
- A. TRUE
- B. False
Answer: B
NEW QUESTION 72
In SSM, what version of IGMP is required?
- A. IGMPV4
- B. IGMPV2
- C. IGMPV1
- D. IGMPV3
Answer: D
NEW QUESTION 73
When DLDP detects the presence of a one-way link in the fiber, the default actions of Huawei equipment include: the DLDP state machine migrates to the Disable state, outputs Trap information, and automatically sets the interface to a blocked state.
- A. False
- B. True
Answer: B
NEW QUESTION 74
The correct statement about the difference between OSPFv2 and OSPFv3 is ? Multi-select
- A. OSPFv3 is similar to OSPFv2 in that it uses a multicast address as the OSPF message destination address
- B. BOTH OSPFv2 and OSPFv3 support interface authentication. And OSPFv3 authentication is still based on the fields in the ospf message header
- C. The same type of message exists in OSPFv2, OSPFv3: Hello, DD, LSR, LSU, LSAack, Their message format is the same
- D. OSPFv2 has the protocol number 89 in the IPv4 packet header, OSPFv 3 The next number in the IPv6 message header is 89
Answer: A,C,D
NEW QUESTION 75
What are the differences between traffic policing and traffic shaping?
- A. Traffic shaping is applied in the inlet direction and traffic supervision is applied in the outlet direction
- B. For traffic shaping, the router caches excess packets until bandwidth is available again
- C. The token bucket algorithm is used for traffic supervision, and the SPD algorithm is used for traffic shaping
- D. For traffic policing, the usage of the buffer can be adjusted for traffic exceeding the CIR
- E. For traffic shaping, it can be over-CIR Traffic adjustment for the usage of the buffer
Answer: B,E
NEW QUESTION 76
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