Deck 3: HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network)

Question 1

Which of the following statements regarding RPs are true? (Select 3 answers)

A) Different group addresses on a PIM-SM network corresponds to different RPs.
B) An RP is the root of an RFT
C) An RP is elected out of BSRs.
D) All routers on a PIM-SM network must automatically discover the location of RPs.

Answer 1

Different group addresses on a PIM-SM network corresponds to different RPs.
An RP is the root of an RFT
All routers on a PIM-SM network must automatically discover the location of RPs.

Question 2

An authenticator router has been configured with two domains named "Area1" and "Area2", following which a user is created with the username "huawei" and the password "hello" for authentication. Which domain does this user belongs to?

A) Area1 domain
B) Area2 domain
C) default domain
D) default_admin domain

Answer 2

default domain

Question 3

An AR2200 router is required to be reconfigured from scratch. Which steps are needed to achieve this? (Choose two)

A) Reset the saved configuration.
B) Clear the current configuration.
C) Reboot the AR2200.
D) Assign the configuration file to be used at next startup.

Answer 3

Reset the saved configuration.
Reboot the AR2200.

Question 4

The IPv6 address achitecture does not include which of the following address types?

A) unicast
B) multicast
C) broadcast
D) anycast

Question 5

Which of the following storage devices is used to store the startup configuration files in a router?

A) SDRAM
B) NVRAM
C) Flash
D) BootROM

Question 6

Warning: Auto-Config is working. Before configuring the device, stop Auto-Config. If you perform configurations when Auto-Config is running, the DHCP, routing, DNS, and VTY configurations will be lost. Do you want to stop Auto-Config? [y/n]: Refer to the output. When the administrator first starts the router, a system notice is displayed, however after rebooting this router, the notice disappeared. What is the reason for this? (Choose two)

A) This notice only appears during the very first device startup.
B) The administrator has configured the device and saved the configuration, causing the notice to disappear.
C) The administrator selected 'n' and did not save the configuration.
D) The administrator selected 'y' and saved the configuration.

Question 7

Which of the following are routed protocols? (Choose two)

A) IP
B) OSPF
C) BGP
D) IPX

Question 8

The PPPoE session establishment process can be divided into which stages? (Choose two).

A) Discovery stage
B) DHCP stage
C) PPPoE Session stage
D) PPP connecting stage.

Question 9

The administrator cannot use telnet to manage the AR2200. The administrator is able to verify connectivity to the router and has been informed that other administrators have no difficulties using telnet. Which statements describe the possible reasons for this problem? (Choose two)

A) The user's status has been blocked
B) The user's privilege level has been changed to 0.
C) The user has been deleted.
D) The telnet service in the AR2200 router has been disabled.

Question 10

To which attribute type does the BGP AS-Path attribute belong?

A) Well -known Mandatory
B) Well-known Discretionary
C) Optional Transitive
D) Optional Non-transitive

Question 11

The administrator has configured an IP address for Host A and Host B, but had forgotten to configure a default gateway. What effect will this have on the hosts?

A) Neither host will be affected, and therefore will be able to communicate with the peer.
B) Host A will be unable to connect to the router's G0/0/0 interface.
C) Hosts will be unable to communicate unless arp-proxy is enabled on the router.
D) The host will be unable to reach neither the local nor remote network destinations.

Question 12

The administrator wishes to update the configuration file of an AR2200 router using a USB cable. How can this be achieved? (Choose two)

A) The administrator should connect the USB cable between the terminal and the mini USB port of the AR2200 router.
B) The administrator should connect the USB cable between the terminal and the USB port of the AR2200 router.
C) The AR2200 router cannot support configuration updates through a USB cable.
D) The administrator should install the mini USB drivers on the terminal after connecting the USB.

Question 13

A company has four departments. Department A has 80 PCs, Departments B and C both have 20 PCs, and Department D has 30 PCs. Assuming the IP address 192.168.1.0/x is used, which of the following statements are true if the VLSM technology is employed for subnetting? (Select 2 answers)

A) Plan subnet 192.168.1.0/25 for Department A. The range of host addresses is 1 to 126.
B) Plan subnet 192.168.1.128/27 for Department B. The range of host addresses is 129 to 159.
C) Plan subnet 192.168.1.160/27 for Department C. The range of host addresses is 161 to 190.
D) Plan subnet 192.168.1.192/27 for Department D. The range of host addresses is 192 to 222.

Question 14

Refer to the graphic. The host has a problem establishing a telnet connection with the router attached to interface G0/0/0. Which of the following steps can be used to help the administrator identify the problem? (Choose two)

A) Check whether the host has configured the gateway IP address.
B) Check whether the switch has configured the gateway IP address.
C) Use the ping tool to check connectivity between host and router.
D) Check the telnet server configuration is right on the router.

Question 15

Refer to the configuration output. Following configuration, a host is connected to the interface Gigabit Ethernet 0/0/1 of the router. Which IP address will the client obtain?

A) An IP address from network 10.10.10.0/24 will be assigned.
B) An IP address from network 10.20.20.0/24 will be assigned.
C) The host will be unable to obtain an IP address.
D) An IP address may be assigned from either 10.10.10.0/24 or 10.20.20.0/24.

Question 16

On Huawei VRP platform, which of the following can be used to invoke the history command saved by the command line interface? (Choose two)

A) Up cursor key < >
B) Left cursor key < >
C) Ctrl+P
D) Ctrl+U

Question 17

A host has established a telnet connection with the router attached to interface G0/0/0. Which of the following statements are correct? (Choose two)

A) The destination address of a frame sent by the host will be the MAC address of the router interface.
B) The destination address of a frame will be the MAC address of the switch interface.
C) The destination port number in a segment header will have a value of 80.
D) The destination IP address of a packet will be the IP address of the network interface of the router.

Question 18

Which of the following statements regarding the routing table are correct? (Choose two)

A) The next hop in the routing table is redundant because the outgoing interface can be used for packet forwarding.
B) The routes from generated by different protocols have different preferences.
C) The metrics of different routing protocols are comparable.
D) The metrics of different routing protocols are not comparable

Question 19

Which of the following protocols is used in Frame Relay to map the address to DLCI dynamically?

A) ARP protocol
B) RARP protocol
C) InARP protocol
D) Map protocol

Question 20

Which of the following statements regarding NSSA commands is false?

A) The default-route-advertise  command is used to generate a type-7 default route.
B) The no-import-route parameter prevents the import of AS external routes in the form of Type-7 LSAs into an NSSA.
C) The no-summary parameter prevents the advertisement of Type-3 and Type-4 LSAs in an area.
D) The set-n-bit parameter indicates that an N-bit will be set in a DD packet.

Question 21

How does community attribute of the BGP route set by routing policies affect route selection?

A) The Community attribute directly affects route selection because it must be compared during the route selection process.
B) The Community attribute does not affect route selection because it is non-transitive and cannot be transmitted between routers.
C) Routes are classified by the Community attribute which indirectly affects route selection.
D) Different route attributes such as the Local-Preference and MED values can be set for routes in different communities.

Question 22

We can have different network segments in an OSPF area. We can also have same network segment in different OSPF areas.

Question 23

What are the differences between the IGMP versions 1, 2 & 3? (Select 2 answers)

A) IGMPv1/v2 cannot elect devices which may send queries but IGMPv3 can.
B) IGMPv2/v3 members can actively leave groups, whereas in IGMPv1 members cannot
C) IGMPv1/v2 do not support the SSM service model but IGMFV3 does.
D) IGMPv1/v2 do not support group-specific queries but IGMPv3 does.

Question 24

Which statements regarding prerequisites to establish a BGP peer relationship are true? (Select 2 answers)

A) BGP peers must be manually configured.
B) A TCP connection must be established between two neighboring routers.
C) BGP peers must exchange routing information.
D) MD5 authentication must be configured between BGP peers.

Question 25

Which of the following tools cannot be used for route filtering?

A) Filter-policy
B) IP-prefix
C) Route-policy
D) Policy-based-route

Question 26

If there are two BGP routes with the same destination address but different next hops in a BGP routing table, then which statement regarding the two BGP routes is true?

A) Both BGP routes are advertised to other BGP peers.
B) Only the optimal route between the two is advertised to other BGP peers.

Question 27

An ACL is a series of orderly rules composed of permit deny clauses. Which of the following attributes cannot be used for defining an ACL rule?

A) Source address
B) Destination address
C) Port number
D) AS-Path

Question 28

Which is the origin attribute of the BGP routes redistributed using the import-route command?

A) IGP
B) EGP
C) Incomplete
D) Unknown

Question 29

What are the functions of route filtering? (Select 3 answers)

A) Avoids sub-optimal routes generated during route import,
B) Avoids routing loops.
C) Affects route selection by changing route attributes.
D) Implements accurate route importing and controls route advertisement.

Question 30

How many multicast IP addresses can be represented by an IP multicast MAC address?

A) 1
B) 23
C) 32
D) 24

Question 31

The Internet Group Management Protocol (IGMP) runs between hosts and their immediately neighboring multicast routers.

Question 32

Which of the following conditions must be met for importing routes into BGP using the network command? (Select 2 answers)

A) The routes must be optimal in the IP routing table.
B) The routes do not need to match the specified mask length.
C) The routes must match the specified mask length.
D) The routes must be IGP routes.

Question 33

The bandwidth-reference parameter is measured in Mbit/s.

Question 34

A BGP finite state machine has the following states: Active OpenConfirm Idle Established OpenSent What is the state transition sequence to establish a successful BGP peer relationship?

A) Idle-OpenSent-OpenConfirm-Active-Established
B) Idle-Active-OpenSent-OpenConfirm-Established
C) Active-Id le-OpenSent-OpenConfirm-Established
D) Idle-Active-OpenConfirm-OpenSent-Established

Question 35

Which of the following route prefixes match the IP-prefix-filter given below? "ip ip-prefix test index 10 permit 10.0.0.0 16 greater-equal 24 less-equal 28" (Select 3 answers)

A) 10.0.1.0/23
B) 10.0.1.0/24
C) 10.0.1.0/25
D) 10.0.1.0/28

Question 36

Which of the following routers can initiate SFT switchover on a PIM-SM network? (Select 2 answers)

A) Last-hop router
B) Intermediate router
C) RP
D) Source's DR

Question 37

Which port number is used by BGP to establish a TCP connection?

A) 520
B) 89
C) 179
D) I80

Question 38

Which of the following statements regarding the features of VLSM are true? (Select 2 answers)

A) VLSM supports both IPv4 and IPv6.
B) VLSM supports overlapping address ranges.
C) VLSM allows for summarization of routes
D) VLSM can divide a subnet into smaller subnets.

Question 39

Which of these is a valid VLSM subnet obtained by subnetting the network address 172.29.100.0/16?

A) 172.29.100.8/28
B) 172.29.100.32/28
C) 172.29.100.60/28
D) 172.29.100.104/28

Question 40

Which of the following commands is used to display the IGMP routing table?

A) display igmp group
B) display igmp interface
C) display igmp routing-table
D) display igmp

Question 41

If both the ospf cost and reference-bandwidth are configured on an interface, the value set by the ospf cost command is used as the cost of the interface.

Question 42

Which of the following statements regarding an AS-external-LSA are true? (Select 3 answers)

A) The Link State ID field specifies the network segment address of an advertised destination.
B) The Advertising Router field specifies the Router ID of an ASBR.
C) The Net mask field specifies the network mask of an advertised destination.
D) The Link State ID together with Advertising Router fields are used to uniquely identify an AS-external-LSA.

Question 43

What is the link-state ID of an ASBR-Summary-LSA?

A) The OSPF Router ID of an LSA's originator
B) The Interface IP address of the DR on the described network segment
C) The address of the described network segment
D) The Router ID of the described ASBR

Question 44

Which of the following statements is false?

A) The Type-1 external metric is the sum of the external metric and the internal cost to reach an ASBR.
B) The Type-2 external metric uses only the AS external metric.
C) The metric of an external route is the sum of the AS external metric and the AS internal metric.
D) The effects of setting Forwarding Address to a non-zero value is that the next hop of the external route imported into OSPF is within the OSPF routing area.

Question 45

Which statements about OSPF packets are true? (Select 3 answers)

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.

Question 46

Which statement about OSPF is false?

A) Hello messages are used as a form of greeting to discover other routers on its networks and establish relationships between neighboring devices. On broadcast or NBMA networks, Hello messages can also be used to elect a DR or a BDR.
B) DD packets describe the summary LSDB information by carrying LSA headers.
C) The intervals at which two routers send Hello messages must be consistent; otherwise, cannot be established relationships between neighboring devices.
D) DD packets contain headers of all LSAs for periodic LSDB synchronization between OSPF neighbors.

Question 47

The Origin attribute of the BGP routes injected with the network command are considered IGP.

Question 48

According to BGP route selection rules, a local route that is automatically summarized takes precedence over a local route that is manually summarized.

Question 49

Which of the following statements regarding the MED attribute are true? (Select 3 answers)

A) Based on BGP route selection rules, the MED has precedence over the AS_Path, Preferred-Value, Local-Preference, and Origin attributes.
B) The MED of a BGP route is 100 by default.
C) Generally, BGP compares only the MEDs of routes received from the same AS but if the "compare-different-as-med" command is configured, BGP can compare the MEDs of the routes received from multiple ASs.
D) the default MED value 0 on a BGP indicates that the  route is not specified. If the bestroute med-none-as-maximum command is configured, the maximum MED value that can be set is 4294967295.

Question 50

Which of the following statements regarding DR in PIM protocol are true? (Select 3 answers)

A) In DR election, the router with the lowest IP address is elected among the routers of the same DR priority..
B) A source's DR sends Register messages to an RP.
C) A receiver's DR is sends Join messages to a multicast source or an RP.
D) An Assert winner on a shared network segment may not be a DR.

Question 51

Which of the following statements are correct regarding BGP attributes? (Select 2 answers)

A) Till now, there are 16 BGP attributes
B) BGP attribute can be extended to 256 types
C) Well known discretionary attribute may not be included in each BGP update message, such as origin attribute
D) AS_PATH is an optional transitive attribute

Question 52

On a broadcast network or an NBMA network, not all neighbors need to set up adjacencies with each other. Therefore, the concept of establishing adjacency is applicable only to the broadcast network or the NBMA network.

Question 53

Which parameters are carried in a BGPOpen message? (Select 3 answers)

A) Local AS number
B) BGPID
C) Keepalive timer
D) Holder timer
E) Current peer status

Question 54

What is the network address for the IP address 190.233.27.13/16?

A) 190.0.0.0
B) 190.233.0.0
C) 190.233.27.0
D) 190.233.27.1

Question 55

Which of the following statements is false?

A) An ABR maintains a separate LSDB for each area it is attached to. ABRs have multiple LSBDs.
B) Metric, an ASE LSA parameter, can be specified when an external route is imported with 1 as its default value.
C) The externally-derived routing information carries a tag for transmitting additional information of the route which is commonly used in a routing policy. The default value of the Tag label is 0.
D) The Link State ID is the Router ID of the ASBR for type 4 LSAs.

Question 56

How many Class C networks does the summarized route 192.168.134.0/22 cover?

A) 2
B) 4
C) 8
D) 16

Question 57

Assume that the following commands are run to configure BGP timer keepalive 30 hold 90 peer 1.1.1.2 timer keepalive 10 hold 30 Which statements regarding the configuration are true? (Select 2 answers)

A) A global configuration is preferred. Therefore, the timer values for peer 1.1.1.2 are "keepalive 30 hold 90."
B) A peer configuration is preferred. Therefore, the timer values for peer 1.1.1.2 are "keepalive 10 hold 30."
C) The smaller value between the global and peer timer values is chosen. Therefore, the timer values for peer 1.1.1.2 are "keepalive 10 hold 30".
D) The default configuration is "timer keepalive 60 hold 180." Therefore, peer 1.1.1.2 can detect connection faults faster than the default configuration.

Question 58

Which of the following routes match the ACL filter given below? (Select 2 answers) "acl number 2001 rule 0 permit source 1.1.1.0 0.0.254.255"

A) 1.1.1.1/32
B) 1.1.2.1/32
C) 1.1.3.1/32
D) 1.1.4.1/32

Question 59

Which of the following route selection tools is used in multiple routing protocols, can be configured with match conditions, and consists of if-match and apply clauses?

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

Question 60

Which of these statements is false when using the import-route command to import routes into BGP?

A) The import-route command can import IGP routes, direct routes, and static routes into BGP.
B) A process ID must be specified if OSPF routes or RIP routes are imported into BGP.
C) By default, the origin attribute of imported routes is IGP.
D) Routing policies filters the routes imported from other routing protocols.

Question 61

Which of the following routes matches the ACL filter given below? "acl number 2001 rule 0 permit source 1.1.0.0 0"

A) 1.1.1.1/32
B) 1.1.1.0/24
C) 1.1.0.0/16
D) 1.0.0.0/8

Question 62

Which of the following BGP attributes are optional in a BGP Update packet? (Select 2 answers)

A) Origin
B) Nexthop
C) Local-Preference
D) MED

Question 63

The BGP community attribute is a well-known mandatory attribute.

Question 64

Over a working TCP connection, what is the state of the BGP peer relationship if the peer AS number configured for a BGP router is inconsistent with the AS number of its BGP peer?

A) Idle
B) Active
C) OpenSent
D) Established

Question 65

RTA and RTB are interconnected through a FE interface in an OSPF area. Which of the following can be used to configure the link cost between RTA and RTB as 10? (Select 2 answers)

A) Use command "ospf cost 10" on the two routers
B) Use command "ospf cost 5" on the two routers
C) Use command "bandwidth-reference 500" on the two routers to change bandwidth-reference value
D) Use command "bandwidth-reference 1000" on the two routers to change bandwidth-reference value

Question 66

A network administrator is required to construct a small-scale network containing only 22 hosts. The ISP has provided only a single public IP address that is to be used as the egress address. Which of the following addressing schemes can be used to plan such a network?

A) 10.11.12.16/28
B) 172.31.255.128/27
C) 192.168.1.0/28
D) 209.165.202.128/27

Question 67

ABRs advertise link state information about non-backbone areas into backbone areas. The backbone area then advertises the routing information into other non-backbone areas. Link state information about the backbone area cannot be advertised into non-backbone areas.

Question 68

Type 2-external route should always take precedence over a Type 1-external route.

Question 69

The ABR in a Totally Stubby area will not advertise Type-3, Type-4, and Type-5 LSAs into the Totally Stubby area. Instead, the ABR will advertise a default route to the Totally Stubby area enabling packet forwarding to other destinations.

Question 70

RTA is a source's DR and RTB is an RP. A multicast source sends multicast data to RTA but RTB cannot find any information about the multicast source (registered by using the PIM Register message). Why? (Select 3 answers)

A) RTB has no unicast routes to RTA,
B) RTA fails to learn RP information.
C) RTA has no unicast routes to RTB.
D) The RP learned by RTA is not RTB.

Question 71

Which statements regarding BGP route advertisement are true? (Select 2 answers)

A) All BGP routes learned from BGP peers are advertised to other BGP peers,
B) Only the routes learned from an IGP are advertised to other BGP peers.
C) By default, the routes learned from IBGP peers are not advertised to other IBGP peers,
D) Only the optimal routes are advertised to other BGP peers.

Question 72

In a route-policy, which BGP attributes can be used to define apply clauses? (Select 3 answers)

A) Local-Preference
B) Tag
C) Origin
D) AS-Path

Question 73

Which of these statements is true when configuring MD5 authentication between BGP peers?

A) All routers in the same AS must use the same MD5 password.
B) A pair of BGP peers must use the same MD5 password.
C) All BGP peers must use the same MD5 password.
D) Every BGP peer of a router must use a unique MD5 password.

Question 74

Which of the following statements regarding BGP route selection rules are true? (Select 3 answers)

A) BGP initially ignores routes with unreachable next hops,
B) A summarized route takes precedence over a non-summarized route.
C) IBGP routes take precedence over EBGP routes.
D) If all other factors are the same, the route with the shortest length cluster list is preferred.

Question 75

Which of the following problems can be solved by IGMP Snooping?

A) Receiver hosts support only IGNPv2, but only the SSM model is used on the network.
B) A router receives large quantities of IGMP Report messages due to the existence of large number of hosts on the network.
C) Broadcasting of multicast data on Layer 2 devices.
D) Validity of IGMP Report messages.

Question 76

Which statement about OSPF is false?

A) The router with a higher Router Priority has a higher DR election priority.
B) When two routers have the same Router Priority, the one with a larger value for Router ID has a higher DR election priority.
C) If a DR fails, the BDR automatically takes over as the DR and a new BDR is elected.
D) If a BDR fails, the DR will not take over as the BDR and waits for the fault recovery to handle the situation. No new BDR will be elected.

Question 77

Routes 172.1.12.0/24, 172.1.13.0/24, 172.1.14.0/24, and 172.1.15.0/24 can be summarized into route 172.1.8.0/21.

Question 78

Which of the following concepts should a network administrator know while using VLSM technology for subnetting? (Select 3 answers)

A) A subnet is composed of only summarized routes.
B) A subnet can address a host or be further subnetted.
C) The routing updates must carry subnet mask information.
D) The summarized networks must have the same high-order bit.

Question 79

What does the IP-prefix-filter "ip ip-prefix test index 10 deny 0.0.0.0 0 less-equal 32" mean?

A) Matching only default routes
B) Matching all routes
C) Denying only default routes
D) Denying all routes

Question 80

What is the maximum number of bits that can be used for creating subnets, when the network address is a Class B address?

A) 8
B) 14
C) 16
D) 22