Far Out H12-221 Tutorials 2021

NEW QUESTION 1
If the subnet mask for Class A address is 255.255.240.0, how many bits are used for subnetting?

• A. 4
• B. 5
• C. 9
• D. 12

Answer: D

NEW QUESTION 2
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 3
In the process of calculating SPF tree, the cost from a given node to its root node is equal to the metric listed in the Router LSA generated by the node.

• A. TRUE
• B. FALSE

Answer: B

NEW QUESTION 4
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 5
What are the functions of an IGMFV2 Query message? (Select 3 answers)

• A. A router sends IGMPv2 Query messages to collect group memberships of receiver hosts.
• B. A router sends IGMPv2 Query messages to elect a querier.
• C. A working router sends Query messages periodically.
• D. Based on IGMPv2 Query messages, receiver hosts can unicast Report messages to the querier by obtaining its address.

Answer: ABC

NEW QUESTION 6
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 7
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 8
Which of the following routers have multicast routing entries even when there is no receiver on the network? (Select 2 answers)

• A. Source's DR
• B. Receiver router
• C. Intermediate router
• D. RP

Answer: AD

NEW QUESTION 9
What is the maximum number of hosts that a network segment 192.168.2.16/28 can support?

• A. 16
• B. 8
• C. 15
• D. 14
• E. 7

Answer: D

NEW QUESTION 10
Which types of packets are supported by BGP? (Select 3 answers)

• A. Hello
• B. Notification
• C. Update
• D. Route-refresh

Answer: BCD

NEW QUESTION 11
Whichof the following is a private AS number?

• A. 65410-65535
• B. 1-64511
• C. 64512-65535
• D. 64511-65535

Answer: C

NEW QUESTION 12
Which of the following connection types can a Router LSA describe? (Select 3 answers)

• A. Point-to-point
• B. Star
• C. Transit
• D. Virtual link

Answer: ACD

NEW QUESTION 13
The default-route originate command in the RIP protocol advertises a default RIP route to the peers. When using this command, which of the following attributes can be set for the default route?

• A. Tag
• B. Cost
• C. Interface
• D. Nexthop

Answer: B

NEW QUESTION 14
ACLs can match routing information or data packet addresses to filter unmatched routing information or data packets.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 15
The route selection tool route-policy" can set and filter BGP attributes based on pre-defined conditions. Therefore, this tool is often used to define policies towards a BGP peer or during route generation.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 16
The Origin attribute of the BGP routes injected with the network command are considered IGP.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 17
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.

Answer: B

NEW QUESTION 18
Enabling MD5 authentication between BGP peers can prevent DoS attacks that target BGP peers.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 19
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.

Answer: C

NEW QUESTION 20
Which of the following elements are used by Network LSA to describe broadcast or NBMA network segments in OSPF routing protocol? (Select 3 answers)

• A. Link ID
• B. Net mask
• C. Attached Router list
• D. Metric

Answer: ABC

NEW QUESTION 21
Which of the following network link type is not the basic network link type defined in OSPF?

• A. P2P
• B. P2MP
• C. Broadcast
• D. Virtual link

Answer: D

NEW QUESTION 22
An OSPF neighbor relationship fails to establish and the OSPF error information is displayed as follows. Which of the following is most likely the cause?

• A. Router IDs conflict.
• B. Area IDs are mismatched.
• C. Network masks are inconsistent.
• D. Authentication types are inconsistent.

Answer: A

NEW QUESTION 23
BGP is an exterior gateway protocol which runs between ASs. It focuses on the control of route propagation and selection of optimal routes rather than discovery and calculation of routes.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 24
How many multicast IP addresses can be represented by an IP multicast MAC address?

• A. 1
• B. 23
• C. 32
• D. 24

Answer: C

NEW QUESTION 25
Which of the following messages exist only in PIM-SM? (Select 2 answers)

• A. Join/Prune
• B. Assert
• C. Bootstrap
• D. Register

Answer: CD

NEW QUESTION 26
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 27
The import-route limit" command is used to set a maximum number of imported routes that can be imported into an OSPF routing process.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION 28
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 node 20 and its final cost is set 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

NEW QUESTION 29
BGP speakers sends which type of message to identify its peer's AS number information?

• A. Route-refresh
• B. Open
• C. Keepalive
• D. Update

Answer: B

NEW QUESTION 30
How many bits of the MAC address space is available for mapping IP multicast addresses?

• A. 24
• B. 22
• C. 25
• D. 23

Answer: D

NEW QUESTION 31
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