Question 1

After the project delivery, the O&M expenses are continuously generated. Which of the following items are the expenses generated during the O&M? (Choose all that apply.)

Accepted Answer

A)   Energy expenses
B)   Line construction expenses
C)   Line lease expenses
D)   Equipment depreciation expenses
E)   Staff expensesF) A) and D)
G) A) and E)

Question 2

Which statements are true? (Choose three.)

Accepted Answer

A)   The sub-VLANs are configured in the super VLAN view.
B)   VLANs 1 to 4094 can be configured as a super VLAN.
C)   The aggregate-vlan command is used to configure the super VLAN.
D)   A VLAN to be configured as a super VLAN cannot contain any interface.E) A) and D)
F) None of the above

Question 3

Which of the following firewalls is the most popular?

Accepted Answer

A)   Packet filtering firewall
B)   Stateful firewall
C)   Proxy firewall
D)   Anti-virus firewallE) All of the above
F) A) and B)

Question 4

When the Hold Time parameter negotiated between two BGP peers is 0, no Keepalive messages will be sent.

Accepted Answer

A) True 
 B)False

Question 5

According to OSI reference model, Layer 2 LAN switch operates at ( ) .

Accepted Answer

A)   Physical layer
B)   Data link layer
C)   IP layer
D)   Application layerE) C) and D)
F) B) and D)

Question 6

Which of the BGP attributes will not be advertised to other neighbor AS?

Accepted Answer

A)   LOCAL_PREF
B)   AS_PATH
C)   COMMUNITY
D)   ORIGINE) None of the above
F) A) and B)

Question 7

Which of the following statements about traffic policing are true? (Choose three.)

Accepted Answer

A)   Is used to limit the traffic transmission rate.
B)   Is used to color packets.
C)   Caches packets whose transmission rate exceeds the limit.
D)   Re-marks packets with priorities.E) B) and C)
F) A) and B)

Question 8

BFD is a common fast detection technology. It implements the fast switchover function only when collaborating with other fast switchover technologies.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following route selection mechanisms can adopt user-defined policies to determine data forwarding paths flexibly based on ACLs or packet lengths?

Accepted Answer

A)   AS-path-filter
B)   IP-prefix
C)   Route-policy
D)   Policy-based-routeE) None of the above
F) B) and D)

Question 10

Which packet information can be used for complex traffic classification? (Choose three.)

Accepted Answer

A)   Packet length
B)   Source and destination addresses
C)   Protocol type
D)   Source and destination MAC addressesE) A) and D)
F) All of the above

Question 11

By using VRRP, the backup router in a VRRP backup group immediately becomes the master router after detecting a fault and instructs its attached hosts to perform a master/slave switchover accordingly. This ensures that services will recover within a short period of time.

Accepted Answer

A) True 
 B)False

Question 12

Congestion occurs when a link or node is carrying so much data that its quality of service deteriorates.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following statements regarding the LSA header information in AS-External-LSA is false?

Accepted Answer

A)   Link State ID indicates a destination network address.
B)   Advertising Router indicates the router ID of an ASBR.
C)   Net mask indicates the network mask of the destination network segment.
D)   Forwarding Address is always 0.0.0.0.E) A) and C)
F) A) and B)

Question 14

Which statements about OSPF packets are true? (Choose three.)

Accepted Answer

A)   Hello packets can be sent after OSPF is enabled on an interface.
B)   LS Request packets are sent only after an adjacency is established.
C)   LS Update packets contain detailed LSA information for LSDB synchronization.
D)   LS Update packets are sent only after an adjacency is established.E) None of the above
F) A) and B)

Question 15

On the RSTP network as shown in the figure, what RSTP operations will occur after the E1 port of SWB fails? (Choose three.)

Accepted Answer

A)   SWB deletes the MAC address entries with the E1 port as the destination interface.
B)   The spanning tree is recalculated and the E2 port is elected as the new root port.
C)   All the interfaces in forwarding state send topology change notifications (TCNs)  to notify other switches of the topology change.
D)   All the non-edge ports in forwarding state send TCNs to notify other switches of the topology change.E) None of the above
F) C) and D)

Question 16

For a network like 175.25.128.0/19, the mask value is?

Accepted Answer

A)   255.255.0.0
B)   255.255.224.0
C)   255.255.24.0
D)   Different based on the address typeE) C) and D)
F) B) and C)

Question 17

RSTP provides faster convergence than STP. What are causes? (Choose all that apply.)

Accepted Answer

A)   RSTP defines the edge port role. The edge port does not receive and process configuration BPDUs, and not participate in RSTP calculation. The edge port can directly change from the Disable state to the Forwarding state.
B)   When the root port fails, the optimal alternate port will become the root port and enter the Forwarding state.
C)   In RSTP, when a port is elected as the designated port, it enters the Discarding state. Then the port immediately enters the Forwarding state through the Proposal/Agreement mechanism.
D)   In RSTP, when a port receives RST BPDUs from the upstream designated bridge, the port will compare the own stored RST BPDU will the received RST BPDU.
E)   When the designated port fails, the optimal alternate port will become the root port and enter the Forwarding state.F) B) and E)
G) B) and D)

Question 18

Which of the following statements regarding the OSPF protocol are true? (Choose all that apply.)

Accepted Answer

A)   An OSPF topology has three endpoint types: router node, stub network segment, and transit network segment.
B)   A broadcast network segment or a NBMA network segment with at least two routers are a type of transit network segment.
C)   The default bandwidth reference value of OSPF is 100 Mbit/s.
D)   The cost from a transit network segment to the router connected to this network segment is 100.E) B) and D)
F) None of the above

Question 19

When links are switched in a Smart Link group, which of the following mechanisms can be used to refresh MAC and ARP entries? (Choose three.)

Accepted Answer

A)   MAC and ARP entries are refreshed automatically with respect to traffic.
B)   The Smart Link group uses a new link to send Flush packets.
C)   MAC entries are refreshed after the aging time expires.
D)   ARP entries are refreshed after the aging time expiresE) A) and D)
F) B) and C)

Question 20

What is the function of the client IP address field in DHCP messages?

Accepted Answer

A)   It is used by the client in bound, renew, or rebinding state to respond to ARP request packets.
B)   It specifies the IP address allocated by the DHCP server to a client.
C)   It specifies the next server address used in the BootStrap and is contained in DHCP Offer or DHCP ACK messages.
D)   It specifies the DHCP relay address.E) All of the above
F) A) and D)

Exam 5: HCNP-R&S Fast Track (Huawei Certified Network Professional - Routing & Switching Fast Track)

Which statements are true? (Choose three.)

Correct AnswerverifiedShow Answer

Which of the BGP attributes will not be advertised to other neighbor AS?

Correct AnswerverifiedShow Answer

When links are switched in a Smart Link group, which of the following mechanisms can be used to refresh MAC and ARP entries? (Choose three.)

Correct AnswerverifiedShow Answer

RSTP provides faster convergence than STP. What are causes? (Choose all that apply.)

Correct AnswerverifiedShow Answer

For a network like 175.25.128.0/19, the mask value is?

Correct AnswerverifiedShow Answer

By using VRRP, the backup router in a VRRP backup group immediately becomes the master router after detecting a fault and instructs its attached hosts to perform a master/slave switchover accordingly. This ensures that services will recover within a short period of time.

Correct AnswerverifiedShow Answer

Which of the following route selection mechanisms can adopt user-defined policies to determine data forwarding paths flexibly based on ACLs or packet lengths?

Correct AnswerverifiedShow Answer

Congestion occurs when a link or node is carrying so much data that its quality of service deteriorates.

Correct AnswerverifiedShow Answer

What is the function of the client IP address field in DHCP messages?

Correct AnswerverifiedShow Answer

Which packet information can be used for complex traffic classification? (Choose three.)

Correct AnswerverifiedShow Answer

BFD is a common fast detection technology. It implements the fast switchover function only when collaborating with other fast switchover technologies.

Correct AnswerverifiedShow Answer

When the Hold Time parameter negotiated between two BGP peers is 0, no Keepalive messages will be sent.

Correct AnswerverifiedShow Answer

Which of the following statements regarding the OSPF protocol are true? (Choose all that apply.)

Correct AnswerverifiedShow Answer

Which of the following firewalls is the most popular?

Correct AnswerverifiedShow Answer

Which of the following statements about traffic policing are true? (Choose three.)

Correct AnswerverifiedShow Answer

On the RSTP network as shown in the figure, what RSTP operations will occur after the E1 port of SWB fails? (Choose three.)

Correct AnswerverifiedShow Answer

Which of the following statements regarding the LSA header information in AS-External-LSA is false?

Correct AnswerverifiedShow Answer

According to OSI reference model, Layer 2 LAN switch operates at ( ) .

Correct AnswerverifiedShow Answer

Which statements about OSPF packets are true? (Choose three.)

Correct AnswerverifiedShow Answer

After the project delivery, the O&M expenses are continuously generated. Which of the following items are the expenses generated during the O&M? (Choose all that apply.)

Correct AnswerverifiedShow Answer

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