A Review Of High Value H12-221 Practice Exam

NEW QUESTION 1
The router ID which is configured in the system view takes precedence over the router ID configured in the BGP view.

• A. TRUE
• B. FALSE

Answer: B

NEW QUESTION 2
Which of the following tools cannot be used for route filtering?

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

Answer: D

NEW QUESTION 3
Which of the following statements about a neighbor state machine is true?

• A. The Attempt state appears only on an NBMA network or a broadcast network.
• B. The Attempt state appears only on an NBMA network or a P2MP network.
• C. LSR packets can be sent in the Exchange state.
• D. The Full state indicates that LSDB synchronization is complet
• E. No LSDB information will be exchanged.

Answer: C

NEW QUESTION 4
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.

Answer: ABD

NEW QUESTION 5
In OSPF protocol, Different types of networks cannot establish an adjacency with each other in the Full state.

• A. TRUE
• B. FALSE

Answer: B

NEW QUESTION 6
Which of the following describes the relationship between BGP and AS?

• A. BGP only runs between ASs, and cannot run within an AS.
• B. BGP is an EGP used by ASs to exchange routing information with other ASs.
• C. BGP builds network topologies by exchanging link-state information between ASs.
• D. BGP cannot run between ASs.

Answer: B

NEW QUESTION 7
The BGP community attribute is a well-known mandatory attribute.

• A. TRUE
• B. FALSE

Answer: B

NEW QUESTION 8
The ABR of an NSSA does not advertise Type-4 and Type-5 LSAs to an NSSA instead it imports external routes into the NSSA,

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 9
Which of the following are OSPF message types? (Select 4 answers)

• A. Hello
• B. Database Description
• C. Link-State Request
• D. Link-State Update
• E. Link-State Advertisement

Answer: ABCD

NEW QUESTION 10
Which of the fallowings are OSPF packet types? (Select 3 answers)

• A. LSA
• B. LS Request
• C. LSP
• D. LS Update
• E. LSAck

Answer: BDE

NEW QUESTION 11
Which session is established between BGP peers?

• A. Telnet
• B. Send Hello packet
• C. UDP
• D. TCP

Answer: D

NEW QUESTION 12
Which of the following elements together uniquely identify a LSA? (Select 3 answers)

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

Answer: ABC

NEW QUESTION 13
Only Router-LSAs and Network-LSAs are involved in intra-area route calculations.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 14
The vlink-peer command is used to specify a peer IP address for setting up a virtual link.

• A. TRUE
• B. FALSE

Answer: B

NEW QUESTION 15
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

Answer: C

NEW QUESTION 16
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.

Answer: C

NEW QUESTION 17
If the default-route-advertise command is used to advertise a default BGP route to peers, how will this operation affect the local BGP routing table?

• A. An inactive default route will be generated in the local BGP routing table which will not be delivered to the IP routing table.
• B. An active default route will be generated in the local BGP routing table which will be delivered to the IP routing table.
• C. The local BGP routing table will not be affected and no default route will be generated.
• D. A default route will be generated in the local BGP routing tabl
• E. Whether this route is delivered to the IP routing table depends on route selection results.

Answer: C

NEW QUESTION 18
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.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 19
BGP is an inter-AS routing protocol.Which statements regarding BGP are true? (Select 3 answers)

• A. BGP adopts a reliable transmission layer protocol,
• B. BGP supports automatic peer discovery.
• C. BGP supports incremental route updates,
• D. BGP supports various routing policies.

Answer: ACD

NEW QUESTION 20
How many hosts are available per subnet if you apply a /21 mask to the class B network?

• A. 510
• B. 512
• C. 1022
• D. 2046

Answer: D

NEW QUESTION 21
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.

• A. TRUE
• B. FALSE

Answer: B

NEW QUESTION 22
Which of the following is the multicast distribution tree maintained by PIM-DM?

• A. SFT
• B. CBT
• C. RFT
• D. STP

Answer: A

NEW QUESTION 23
You are using the address space 172.28.100.0/24. If the subnet mask 172.28.100.0/30 is used to subnet this address space to serve WAN links, how many total subnets can the address space be divided into?

• A. 30
• B. 64
• C. 126
• D. 254

Answer: B

NEW QUESTION 24
Which of the following attributes must exist in the BGP update messages? (Select 3 answers)

• A. LOCAL_PREF
• B. NEXT_HOP
• C. ORIGIN
• D. AS_PATH

Answer: BCD

NEW QUESTION 25
Route importing can be used when multiple routing protocols run on different networks and these networks need to share routing information.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 26
Which of the following statements are correct regarding how OSPF detects old or duplicate LSAs? (Select 3 answers)

• A. The lower the sequence number, the more recent the LSA.
• B. The smaller the LS age, the more recent the LSA.
• C. A router uses 0x80000001 as the sequence number when it generates the first LSA.
• D. An LSA can be flushed from the routing domain by setting its LS age to equal the Maxage.

Answer: BCD

NEW QUESTION 27
Which of the following statements regarding comparison between ACL and IP-Prefix are true? (Select 2 answers)

• A. Both ACL and IP-Prefix can perform route filtering
• B. Both ACL and IP-Prefix can perform data packet filtering
• C. ACL can perform data packet filtering and route filtering, but IP-Prefix can only perform route filtering
• D. IP-Prefix can perform data packet filtering and route filtering, but ACL can only perform route filtering

Answer: AC

NEW QUESTION 28
How does an IGMP router maintain group memberships on a network? (Select 2 answers)

• A. The router maintains a timer for each group membership which it refreshes for hosts that send report messages and deletes the group membership of hosts that do not.
• B. The router periodically sends Query message
• C. After a receiver host receives the Query message, the receiver host sends a Report message.
• D. A receiver host periodically sends a Report message.
• E. The router deletes a group membership only when it receives a Leave message for this group.

Answer: AB

NEW QUESTION 29
......