Question 1

If PIM-SM is enabled on a multicast network, an RP needs to be configured. The RP can be configured as a dynamic or static RP. Which of the following statements regarding RP configuration is true?

Accepted Answer

A)  No BSR needs to be configured when a dynamic RP is configured. 
B)  When a static RP is configured, you need to configure a BSR that advertises RP information. 
C)  The BSR needs to be configured as the RP backup when a dynamic RP is configured. 
D)  RP information needs to be specified on all PIM routers when a static RP is configured.

Question 2

Which of the following statements regarding CHAP authentication in the PPP protocol are true? (Choose three.)

Accepted Answer

A)  If no user name is configured for the authenticated party, the password does not need to be configured on the interface of the authenticated party. 
B)  The MD5 algorithm is used to calculate a hash based on the authentication sequence ID, a random number, and the key. 
C)  Authentication requires three-way handshake. Only the user name is transmitted on the network, not the password. 
D)  The user name must be configured on the interface of the authenticated party.

Question 3

A bookstore provides a wired network for customers to learn online. However, some users are suddenly unable to access the network. After troubleshooting, it is found that all the IP addresses in the DHCP address pool have been used up. Which of the following is the best way to solve the problem?

Accepted Answer

A)  Configure static ARP binding entries 
B)  Configure IPSG 
C)  Configure DAI 
D)  Limit the maximum number of DCHP snooping binding entries that can be learned on an interface.

Question 4

According to the following scenario, which of the following statements are true?

Accepted Answer

A)  R1 and R2 cannot establish a neighbor relationship. 
B)  R1 has both Level-1 and Level-2 LSDBs. 
C)  R1 has a route to the IP address 10.0.2.2/32 of loopback0 on R2. 
D)  R1 can successfully ping the IP address of loopback0 on R2.

Question 5

Which of the following statements regarding BGP attributes is true?

Accepted Answer

A)  A route can have only one value for the Community attribute. 
B)  The number of the neighboring AS is displayed to the right of the AS_path list of a BGP routing entry. 
C)  The Local_Pref attribute is exchanged only between EBGP peers and is not advertised other Ass. 
D)  When advertising a route from an EBGP peer to an IBGP peer, the BGP speaker does not change the Next_Hop attribute of the route.

Question 6

On a Huawei device, when an external route is imported to IS-IS and the tag of the external route is set, the IS-IS metric type does not need to be changed, and the default style is retained.

Accepted Answer

A) True 
 B)False

Question 7

An Autonomous System (AS) is a set of routers under a single technical administration, using the same routing policy.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following configurations regarding OSPFv3 route aggregation are true?

Accepted Answer

A)  [Huawei]ospfv3 1 [Huawei-ospfv3-1]asbr-summary fc00:0:0:: 48 cost 20 tag 100 
B)  [Huawei-ospfv3-1]abr-summary fc00:0:0:: 48 cost 400 
C)  [Huawei-ospfv3-1]area 1 [Huawei-ospfv3-1-area-0.0.0.1]abr-summary fc00:0:0:: 48 cost 400 
D)  [Huawei-ospfv3-1-area-0.0.0.1]asbr-summary fc00:0:0:: 48 cost 20 tag 100 
E)  [Huawei]interface gigabitethernet 1/0/0 [Huawei- Gigabitethernet1/0/0]asbr-summary fc00:0:0:: 48 cost 20

Question 9

In an existing OSPF network, which types of LSAs cause the SPF calculation?

Accepted Answer

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

Question 10

Which of the following statements regarding 802.1X authentication, RADIUS authentication, and HWTACACS authentication are true?

Accepted Answer

A)  A user cannot be authenticated by both RADIUS authentication and 802.1X authentication. 
B)  A user cannot be authenticated by both RADIUS authentication and HWTACACS authentication. 
C)  A user can be authenticated by both RADIUS authentication and HWTACACS authentication. This is more secure than using just one authentication method. 
D)  Users can access a network through 802.1X authentication, and can be authenticated through RADIUS authentication.

Question 11

Does the following figure correctly show the process of obtaining the link-layer address using NDP?

Accepted Answer

A) True 
 B)False

Question 12

An enterprise sets up an OSPF network with the topology and areas shown in the diagram. OSPF adjacencies are formed between all devices on all links and all loopback interface addresses are advertised by OSPF. A fault occurs and the links from R1 to S2 and R2 to S1 fail. Which of the following statements are true? (Choose all that apply.)

Accepted Answer

A)  R5 can learn the route to the loopback interface of R2. 
B)  R3 can learn the route to the loopback interface of R2. 
C)  R1 can learn the route to the loopback interface of R2. 
D)  R3 can not learn the route to the loopback interface of R2.

Question 13

Which of the following elements together uniquely identify a LSA? (Choose three.)

Accepted Answer

A)  LS type 
B)  Link state ID 
C)  Advertising Router 
D)  LS Sequence number

Question 14

Which of the following are differences between PIM-SM and PIM-DM?

Accepted Answer

A)  PIM-SM has RPTs and SPTs but PIM-DM has only RPTs 
B)  BSRs/RPs exist only on a PIM-SM network, not on a PIM-DM network 
C)  PIM-SM is applicable to a network with few receivers; PIM-DM is applicable to a network with a larger number of receivers 
D)  Whether in PIM-SM or PIM-DM mode, receiver hosts must join multicast groups through IGMP

Question 15

Which of the following statements are true about RIPng?

Accepted Answer

A)  RIPng does not have an authentication mechanism 
B)  Each RIPng update packet contains a maximum of 25 routes 
C)  RIPng supports MD5 authentication 
D)  RIPng uses the link local address to send update packets 
E)  RIPng supports a maximum of 32 hops

Question 16

Which of the following are characteristics of a high availability network? (Choose two.)

Accepted Answer

A)  Faults seldom occur. 
B)  Services can be quickly restored when a fault occurs. 
C)  Faults never occur. 
D)  Services can only be manually restored when a fault occurs.

Question 17

On a BGP/MPLS Ipv4 VPN, OSPF, LDP, and static routes are configured. Which of the following protocols must be enabled with GR to achieve NSF on PEs? (Multiple Choice)

Accepted Answer

A)  Static routes 
B)  MPLS LDP 
C)  OSPF 
D)  BGP

Question 18

The LS Sequence Number field is used to detect expired and duplicate LSAs. This field is a signed 32-bit integer and therefore the minimum LS Sequence Number is 0x800000000.

Accepted Answer

A) True 
 B)False

Question 19

OSPFv3 is a version of OSPF for IPv6 and is different from OSPFv2. OSPFv3 is based on links but OSPFv2 is based on network segments. Which of the following statements is false?

Accepted Answer

A)  When an OSPFv3 router obtains routing information from a neighbor, it uses the link-local address of the neighbor as the next hop for packet forwarding. 
B)  Two OSPF routers on the same physical link can still establish a neighbor relationship even if no unicast IPv6 address is configured. 
C)  Two OSPF routers on the same physical link can still establish a neighbor relationship even if their IPv6 addresses are on different networks. 
D)  Except for virtual links, all OSPFv3 interfaces use a link-local address as the destination address of OSPFv3 message.

Question 20

Which of the following statements is true about the port mirroring on Huawei devices?

Accepted Answer

A)  Huawei devices support port mirroring on the control traffic sent to the CPU 
B)  Huawei devices support flow-based port mirroring. The mirrored traffic can be copied onto multiple observing ports 
C)  Traffic in the RSPAN is transmitted to observing ports in multicast mode 
D)  When the observing port becomes congested, mirrored packets cannot be discarded because these packets have higher priority than service traffic

Exam 6: HCIE-R&S (Written) (Huawei Certified Internetwork Expert-Routing & Switching)

If PIM-SM is enabled on a multicast network, an RP needs to be configured. The RP can be configured as a dynamic or static RP. Which of the following statements regarding RP configuration is true?

Which of the following statements regarding CHAP authentication in the PPP protocol are true? (Choose three.)

A bookstore provides a wired network for customers to learn online. However, some users are suddenly unable to access the network. After troubleshooting, it is found that all the IP addresses in the DHCP address pool have been used up. Which of the following is the best way to solve the problem?

According to the following scenario, which of the following statements are true?

Which of the following statements regarding BGP attributes is true?

On a Huawei device, when an external route is imported to IS-IS and the tag of the external route is set, the IS-IS metric type does not need to be changed, and the default style is retained.

An Autonomous System (AS) is a set of routers under a single technical administration, using the same routing policy.

Which of the following configurations regarding OSPFv3 route aggregation are true?

In an existing OSPF network, which types of LSAs cause the SPF calculation?

Which of the following statements regarding 802.1X authentication, RADIUS authentication, and HWTACACS authentication are true?

Does the following figure correctly show the process of obtaining the link-layer address using NDP?

Which of the following elements together uniquely identify a LSA? (Choose three.)

Which of the following are differences between PIM-SM and PIM-DM?

Which of the following statements are true about RIPng?

Which of the following are characteristics of a high availability network? (Choose two.)

On a BGP/MPLS Ipv4 VPN, OSPF, LDP, and static routes are configured. Which of the following protocols must be enabled with GR to achieve NSF on PEs? (Multiple Choice)

The LS Sequence Number field is used to detect expired and duplicate LSAs. This field is a signed 32-bit integer and therefore the minimum LS Sequence Number is 0x800000000.

OSPFv3 is a version of OSPF for IPv6 and is different from OSPFv2. OSPFv3 is based on links but OSPFv2 is based on network segments. Which of the following statements is false?

Which of the following statements is true about the port mirroring on Huawei devices?