H12-221 Exam Questions PDF - Huawei H12-221 Top dumps
                     Huawei
H12-221
Huawei Certified Network Professional-Implementing 
Enterprise Routing Network
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QUESTION: 208  
Which of the following statements is false?  
 
 
A. The Type-1 external metric is the sum o f t he e xternal m etric and the internal cost to  reach  
an ASBR. 
B. The Type-2 external metric uses only the AS external metric.  
C. The metric of a n external r oute is the su m of  th e AS  ex ternal me tric and  the AS inte rnal 
metric. 
D. The effects of s etting Forwarding Address to a non-zero value is that the  ne xt hop of the   
external route imported into OSPF is within the OSPF routing area. 
 
 
Answer: C 
 
 
QUESTION: 209 
If both the  ospf  cost  and r eference-bandwidth are configured o n an interface, the value set by   
the ospf cost command is used as the cost of the interface. 
 
 
A. TRUE 
B. FALSE 
 
 
Answer: A 
 
 
QUESTION: 210  
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 
 
 
Answer: A, C 
 
 
QUESTION: 211 
Once a BGP connection is established, a  BGP speaker advertises all the optimal ro utes in the 
BGP routing table to its peers. 
 
 
A. TRUE 
B. FALSE 
 
 
Answer: A 
 
 
QUESTION: 212  
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.  
 
 
Answer: B 
 
 
QUESTION: 213  
Which of the following are well-known communities attributes? (Select 3 answers)  
 
 
A. NO_EXPORT (OxFFFFFF0l) 
B. N0_ADVERT1SE (0xFFFFFF02) 
C. NO_EXPORT_SUBCONFED 
D. AS (2Byte): Number (2Byte)  
 
 
Answer: A, B, C 
 
 
QUESTION: 214  
Which of the following statements regarding DR in PIM protocol are true? (Select 3 answers)   
 
 
A. In DR election, the r outer with the lowest IP  ad dress is  elected among the rou ters of t he  
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.  
 
 
Answer: B, C, D 
 
 
QUESTION: 215 
The defined route-policy set-cost configurations are: ip ip-prefix 1 permit 10.1.0.0 16  
route-policy Set-cost permit node 10 if-match ip-prefix 1 
apply cost 300 
route-policy Set-cost permit node 20 apply cost 200  
Which of the following statements is true? 
 
 
A. The route 10.1.0.0/16 matches node 10 and its cost is set to 300. 
B. The route 10.1.0.0/16 matching node 10 also matches no de 20 and its final cost is s et to  
200. 
C. Costs of all routes will be set to 200. 
D. All routes that fail to match node 10 will be denied. 
 
 
Answer: A 
 
 
QUESTION: 216  
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. 
 
 
Answer: C, D 
 
 
QUESTION: 217  
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 o ne with a larger v alue 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 D R w ill n ot take over as  the BD R and waits for the faul t recovery to  
handle the situation. No new BDR will be elected. 
 
 
Answer: D 
 
 
QUESTION: 218 
RTA is a source's DR  and RTB  is an RP. A multicast source s ends m ulticast data to  RTA b ut  
RTB cannot  find any information about the m ulticast source (registered by using the P IM 
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 RPlearned by RTA is not RTB. 
 
 
Answer: B, C, D 
 
 
QUESTION: 219  
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.  
 
 
Answer: A, B, C 
 
 
QUESTION: 220 
Assume that the  following commands are r un to co nfigure B GP timer ke epalive 30 hold 90  
peer 1.1.1.2  timer k eepalive 10 hold 30  W hich statements regarding the configuration are  
true?(Select 2 answers) 
 
 
A. A global configuration is preferred. Therefore, the time r value s 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 v alues is chosen. Therefore, the timer  
values for peer 1.1.1.2 are "keepalive 10 hold 30". 
D. The default c onfiguration is "timer ke epalive 60 hold 18 0." Therefore, peer 1.1. 1.2 can 
detect connection faults faster than the default configuration. 
 
 
Answer: B, D 
 
 
QUESTION: 221 
According to BGP route selection rules, a l ocal route th at is  automatically summarized takes 
precedence over a local route that is manually summarized.  
 
 
A. TRUE 
B. FALSE 
 
 
Answer: B 
 
 
QUESTION: 222 
Which of t he f ollowing statements regarding mu lticast MAC addr esses are true (Select  
3answers) 
 
 
A. The high-order 24 bits of a  multicast M AC a ddress ar e 0x01005e while the low -order 23 
bits of a multicast MAC address are the low-order 23 bits of a multicast IP address. 
B. One multicast MAC address can map 32 different IP multicast addresses.  
C. Multicast  MAC a ddresses are u sed in the lin k layer to i dentify receivers that are in th e  
same multicast group. 
D. One multicast MAC address can map only one IP multicast address.  
 
 
Answer: A, B, C 
 
 
QUESTION: 223  
Route filtering can filter not only routing information but also link-state information.  
 
 
A. TRUE 
B. FALSE 
 
 
Answer: B 
 
 
QUESTION: 224  
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 ro utes received from th e same AS bu t if the  
"compare-different-as-med" command is configured, BGP ca n compare the ME Ds of the   
routes received from multiple ASs. 
D. the default MED value 0 on a BGP indicates that t he route i s not specified. If the b estroute  
med-none-as-maximum command is configured, the m aximum M ED value that can be set is  
4294967295. 
 
 
Answer: A, C, D 
 
 
QUESTION: 225  
In VRP, by default, the routes injected into the BGP are not automaticallysummarize:   
 
 
A. TRUE 
B. FALSE 
 
 
Answer: A 
 
 
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