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OSPF is running on a network. In OSPF, what LSA type would only cause an Incremental SPF calculation?


A) Type 3
B) Type 4
C) Type 1
D) Type 2
E) Type 5

F) B) and E)
G) A) and D)

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In a data communication session between two hosts, the session layer in the OSI model generally communicates with what other layer of the OSI model?


A) The physical layer of the peer
B) The peer's presentation layer
C) The peer's session layer
D) The peer's application layer
E) The data link layer of the peer

F) B) and E)
G) B) and D)

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In inter-AS VPN Option B mode, two Autonomous System Boundary Routers (ASBRs) need to exchange public network LSP labels once during packet forwarding.

A) True
B) False

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If PIM-SM is enabled on a multicast network, only after multicast tress are established between the multicast source and receivers, the receiver can receive multicast data. Which of the following statements regarding the trees are true?


A) An RPT is established between the RP and receivers.
B) An SPT is established between the RP and receivers.
C) An SPT is established between the multicast source and RP.
D) An RPT is established between the multicast source and RP.

E) None of the above
F) B) and C)

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With regard to TCP headers, which control bit tells the receiver to reset the TCP connection?


A) SND
B) CLR
C) PSH
D) SYN
E) RST
F) ACK

G) A) and B)
H) B) and C)

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On a shared network, which of the following mechanisms is used by PIM-SM to prevent duplicate traffic?


A) Register mechanism
B) BSR/RP mechanism
C) Assert mechanism
D) Join/Prune mechanism

E) None of the above
F) All of the above

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As shown in the following topology, EBGP runs between AS100, AS200, AS300, and AS400, and peer relationships have been established between them. When AS400 receives a BGP route to the network segment 1.1.1.1/32 from AS100, which of the following is the correct value of the AS_Path attribute? As shown in the following topology, EBGP runs between AS100, AS200, AS300, and AS400, and peer relationships have been established between them. When AS400 receives a BGP route to the network segment 1.1.1.1/32 from AS100, which of the following is the correct value of the AS_Path attribute? A) 100,200,300,400 B) 300,200,100 C) 400,300,200,100 D) 100,200,300


A) 100,200,300,400
B) 300,200,100
C) 400,300,200,100
D) 100,200,300

E) None of the above
F) A) and B)

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The DSCP value of VoIP traffic on Huawei network devices needs to be set to EF. According to the RFC about DSCP, which value should EF be set to?


A) 5 in decimal notation
B) 101110 in binary notation
C) 0xEF
D) 36 in decimal notation

E) B) and C)
F) A) and B)

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Which of the following statements regarding OSPFv3 are true?


A) The LSAck packet contains the LSA header information, which is used for acknowledging the receipt of an LSA.
B) The Hello packet must contain interface ID of sending interface.
C) The Option field of Hello and DD packets is extended to 24 bits.
D) The LSR packet contains the complete LSA header information, which is used for request updating LSAs.

E) A) and B)
F) A) and C)

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A route selection tool can define multiple entries. Which of the following tools will automatically generate a deny-any entry at the end of the configuration?


A) Route policy
B) IP-prefix
C) Community-filter
D) AS-Path-filter

E) A) and D)
F) B) and C)

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Both IS-IS and OSPF run on a network as shown in the following figure. Route import is configured on RTB and RTC respectively. All the routers are connected through GE interfaces. Routes to the network segment 2.2.2.2/32 is imported to the OSPF process using the import-route direct command on RTD. The default settings are retained for all the other configurations. Which of the following statements regarding this network is false? Both IS-IS and OSPF run on a network as shown in the following figure. Route import is configured on RTB and RTC respectively. All the routers are connected through GE interfaces. Routes to the network segment 2.2.2.2/32 is imported to the OSPF process using the import-route direct command on RTD. The default settings are retained for all the other configurations. Which of the following statements regarding this network is false? A) The following configuration can be performed on RTC to filter out only routes to the network segment 2.2.2.2/32 when RTC imports routes: [RTC] ip ip-prefix 10 index 1 deny 2.0.0.0 8 less-equal 32 [RTC-isis-1]filter-policy ip-prefix 10 import B) On RTB, adjust the IS-IS preference to 160 to avoid generation of sub-optimal routes on the network C) The following configuration can be performed on RTC to filter out routes from RTD to the network segment 2.2.2.2/32 when RTC imports OSPF routes: [RTC-acl-basic-2001]rule 5 deny source 2.0.0.0 0.255.255.255 [RTC-acl-basic-2001]rule 10 permit [RTC-isis-1]filter-policy 2001 import D) RTB learns that RTA is the next hop of the route to the network segment 2.2.2.2/32


A) The following configuration can be performed on RTC to filter out only routes to the network segment 2.2.2.2/32 when RTC imports routes: [RTC] ip ip-prefix 10 index 1 deny 2.0.0.0 8 less-equal 32 [RTC-isis-1]filter-policy ip-prefix 10 import
B) On RTB, adjust the IS-IS preference to 160 to avoid generation of sub-optimal routes on the network
C) The following configuration can be performed on RTC to filter out routes from RTD to the network segment 2.2.2.2/32 when RTC imports OSPF routes: [RTC-acl-basic-2001]rule 5 deny source 2.0.0.0 0.255.255.255 [RTC-acl-basic-2001]rule 10 permit [RTC-isis-1]filter-policy 2001 import
D) RTB learns that RTA is the next hop of the route to the network segment 2.2.2.2/32

E) B) and C)
F) A) and B)

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The OSPFv3 Option field is carried in all LSAs.

A) True
B) False

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Before establishing a network, we must create VLANs. The users that do not need to communicate with each other should be added to the same VLAN for isolation.

A) True
B) False

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Which of the following statements regarding LACP are true?


A) You can run the following commands to delete member interfaces from an Eth-Trunk: interface GigabitEthernet0/0/1     shutdown     undo eth-trunk 1 undo shutdown
B) You can run the following commands to prevent frequent flapping due to physical link faults on an Eth-Trunk: interface eth-trunk 1     lacp preempt enable     lacp preempt delay delay-time
C) You can run the following commands to add member interfaces to an Eth-Trunk: trunkport GigabitEthernet0/0/1
D) You can run the following commands to enable load balancing based on source IP addresses for an Eth-Trunk:     load-balance src-dst-ip

E) A) and B)
F) None of the above

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From the list of applications below, identify the TCP port numbers used for 443, 179,137,110, and 23 in the proper sequence:


A) HTTPS, BGP, NetBios Name Server, POP3, Telnet
B) Finger, DHCP Server, NetBios Name Server, POP3, Telnet
C) BGP, POP3, SNMP, TFTP, Telnet
D) LDAP, SNMP, TFTP, POP3, Telnet
E) HTTPS, SNMP, POP3, DNS, Telnet

F) B) and C)
G) A) and B)

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Which of the following type of SNMP messages sent to the NMS is reliable?


A) Get
B) GetBulk
C) Trap
D) Inform
E) Response

F) B) and D)
G) A) and E)

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A VXLAN tunnel can be established between two VTEPs and shared by all VXLAN Network Identifiers (VNIs) between two NVE nodes.

A) True
B) False

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If the Option field in the OSPFv3 Hello packet sent from GigabitEthernet0/0/0 of router A is 0x000013, which of the following statements are true?


A) GigabitEthernet0/0/0 of router A belongs to an NSSA.
B) GigabitEthernet0/0/0 of router A participates in IPv6 route calculation.
C) Router A supports flooding of AS-external-LSAs.
D) Router A is an OSPFv3 device enabled with the forwarding capability.

E) B) and C)
F) A) and C)

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You must ensure that mission critical traffic is prioritized in the HW network. The IP precedence of a packet can be determined by which of the following?


A) The three most significant bits of the ToS byte
B) All 8 bits of the ToS byte
C) The three least significant bits of the ToS byte
D) Bit 4, 5, and 6 of the ToS byte

E) B) and C)
F) A) and C)

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Inter-device link aggregation implements reliable transmission of data traffic and mutual backup for stack member switches. However, the bandwidth of stack cables between stacked devices is limited. Which of the following methods can be used to improve forwarding efficiency?


A) Configure the system MAC address switchover for the stack
B) Use a stack card to connect the devices to be stacked
C) Enable the function of preferentially forwarding local traffic
D) Enable multi-active detection (MAD) for the stack

E) B) and C)
F) A) and B)

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